ffplay.c

   1 /*
   2  * FFplay : Simple Media Player based on the FFmpeg libraries
   3  * Copyright (c) 2003 Fabrice Bellard
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #define _XOPEN_SOURCE 600
  23
  24 #include "config.h"
  25 #include <inttypes.h>
  26 #include <math.h>
  27 #include <limits.h>
  28 #include "libavutil/avstring.h"
  29 #include "libavutil/colorspace.h"
  30 #include "libavutil/pixdesc.h"
  31 #include "libavcore/imgutils.h"
  32 #include "libavcore/parseutils.h"
  33 #include "libavcore/samplefmt.h"
  34 #include "libavformat/avformat.h"
  35 #include "libavdevice/avdevice.h"
  36 #include "libswscale/swscale.h"
  37 #include "libavcodec/audioconvert.h"
  38 #include "libavcodec/opt.h"
  39 #include "libavcodec/avfft.h"
  40
  41 #if CONFIG_AVFILTER
  42 # include "libavfilter/avfilter.h"
  43 # include "libavfilter/avfiltergraph.h"
  44 #endif
  45
  46 #include "cmdutils.h"
  47
  48 #include <SDL.h>
  49 #include <SDL_thread.h>
  50
  51 #ifdef __MINGW32__
  52 #undef main /* We don't want SDL to override our main() */
  53 #endif
  54
  55 #include <unistd.h>
  56 #include <assert.h>
  57
  58 const char program_name[] = "FFplay";
  59 const int program_birth_year = 2003;
  60
  61 //#define DEBUG_SYNC
  62
  63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
  64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
  65 #define MIN_FRAMES 5
  66
  67 /* SDL audio buffer size, in samples. Should be small to have precise
  68    A/V sync as SDL does not have hardware buffer fullness info. */
  69 #define SDL_AUDIO_BUFFER_SIZE 1024
  70
  71 /* no AV sync correction is done if below the AV sync threshold */
  72 #define AV_SYNC_THRESHOLD 0.01
  73 /* no AV correction is done if too big error */
  74 #define AV_NOSYNC_THRESHOLD 10.0
  75
  76 #define FRAME_SKIP_FACTOR 0.05
  77
  78 /* maximum audio speed change to get correct sync */
  79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
  80
  81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
  82 #define AUDIO_DIFF_AVG_NB   20
  83
  84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
  85 #define SAMPLE_ARRAY_SIZE (2*65536)
  86
  87 static int sws_flags = SWS_BICUBIC;
  88
  89 typedef struct PacketQueue {
  90     AVPacketList *first_pkt, *last_pkt;
  91     int nb_packets;
  92     int size;
  93     int abort_request;
  94     SDL_mutex *mutex;
  95     SDL_cond *cond;
  96 } PacketQueue;
  97
  98 #define VIDEO_PICTURE_QUEUE_SIZE 2
  99 #define SUBPICTURE_QUEUE_SIZE 4
 100
 101 typedef struct VideoPicture {
 102     double pts;                                  ///<presentation time stamp for this picture
 103     double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
 104     int64_t pos;                                 ///<byte position in file
 105     SDL_Overlay *bmp;
 106     int width, height; /* source height & width */
 107     int allocated;
 108     enum PixelFormat pix_fmt;
 109
 110 #if CONFIG_AVFILTER
 111     AVFilterBufferRef *picref;
 112 #endif
 113 } VideoPicture;
 114
 115 typedef struct SubPicture {
 116     double pts; /* presentation time stamp for this picture */
 117     AVSubtitle sub;
 118 } SubPicture;
 119
 120 enum {
 121     AV_SYNC_AUDIO_MASTER, /* default choice */
 122     AV_SYNC_VIDEO_MASTER,
 123     AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
 124 };
 125
 126 typedef struct VideoState {
 127     SDL_Thread *parse_tid;
 128     SDL_Thread *video_tid;
 129     SDL_Thread *refresh_tid;
 130     AVInputFormat *iformat;
 131     int no_background;
 132     int abort_request;
 133     int paused;
 134     int last_paused;
 135     int seek_req;
 136     int seek_flags;
 137     int64_t seek_pos;
 138     int64_t seek_rel;
 139     int read_pause_return;
 140     AVFormatContext *ic;
 141     int dtg_active_format;
 142
 143     int audio_stream;
 144
 145     int av_sync_type;
 146     double external_clock; /* external clock base */
 147     int64_t external_clock_time;
 148
 149     double audio_clock;
 150     double audio_diff_cum; /* used for AV difference average computation */
 151     double audio_diff_avg_coef;
 152     double audio_diff_threshold;
 153     int audio_diff_avg_count;
 154     AVStream *audio_st;
 155     PacketQueue audioq;
 156     int audio_hw_buf_size;
 157     /* samples output by the codec. we reserve more space for avsync
 158        compensation */
 159     DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 160     DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
 161     uint8_t *audio_buf;
 162     unsigned int audio_buf_size; /* in bytes */
 163     int audio_buf_index; /* in bytes */
 164     AVPacket audio_pkt_temp;
 165     AVPacket audio_pkt;
 166     enum SampleFormat audio_src_fmt;
 167     AVAudioConvert *reformat_ctx;
 168
 169     int show_audio; /* if true, display audio samples */
 170     int16_t sample_array[SAMPLE_ARRAY_SIZE];
 171     int sample_array_index;
 172     int last_i_start;
 173     RDFTContext *rdft;
 174     int rdft_bits;
 175     FFTSample *rdft_data;
 176     int xpos;
 177
 178     SDL_Thread *subtitle_tid;
 179     int subtitle_stream;
 180     int subtitle_stream_changed;
 181     AVStream *subtitle_st;
 182     PacketQueue subtitleq;
 183     SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
 184     int subpq_size, subpq_rindex, subpq_windex;
 185     SDL_mutex *subpq_mutex;
 186     SDL_cond *subpq_cond;
 187
 188     double frame_timer;
 189     double frame_last_pts;
 190     double frame_last_delay;
 191     double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
 192     int video_stream;
 193     AVStream *video_st;
 194     PacketQueue videoq;
 195     double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
 196     double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
 197     int64_t video_current_pos;                   ///<current displayed file pos
 198     VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
 199     int pictq_size, pictq_rindex, pictq_windex;
 200     SDL_mutex *pictq_mutex;
 201     SDL_cond *pictq_cond;
 202 #if !CONFIG_AVFILTER
 203     struct SwsContext *img_convert_ctx;
 204 #endif
 205
 206     //    QETimer *video_timer;
 207     char filename[1024];
 208     int width, height, xleft, ytop;
 209
 210     PtsCorrectionContext pts_ctx;
 211
 212 #if CONFIG_AVFILTER
 213     AVFilterContext *out_video_filter;          ///<the last filter in the video chain
 214 #endif
 215
 216     float skip_frames;
 217     float skip_frames_index;
 218     int refresh;
 219 } VideoState;
 220
 221 static void show_help(void);
 222 static int audio_write_get_buf_size(VideoState *is);
 223
 224 /* options specified by the user */
 225 static AVInputFormat *file_iformat;
 226 static const char *input_filename;
 227 static const char *window_title;
 228 static int fs_screen_width;
 229 static int fs_screen_height;
 230 static int screen_width = 0;
 231 static int screen_height = 0;
 232 static int frame_width = 0;
 233 static int frame_height = 0;
 234 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
 235 static int audio_disable;
 236 static int video_disable;
 237 static int wanted_stream[AVMEDIA_TYPE_NB]={
 238     [AVMEDIA_TYPE_AUDIO]=-1,
 239     [AVMEDIA_TYPE_VIDEO]=-1,
 240     [AVMEDIA_TYPE_SUBTITLE]=-1,
 241 };
 242 static int seek_by_bytes=-1;
 243 static int display_disable;
 244 static int show_status = 1;
 245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 246 static int64_t start_time = AV_NOPTS_VALUE;
 247 static int64_t duration = AV_NOPTS_VALUE;
 248 static int debug = 0;
 249 static int debug_mv = 0;
 250 static int step = 0;
 251 static int thread_count = 1;
 252 static int workaround_bugs = 1;
 253 static int fast = 0;
 254 static int genpts = 0;
 255 static int lowres = 0;
 256 static int idct = FF_IDCT_AUTO;
 257 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
 258 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
 259 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
 260 static int error_recognition = FF_ER_CAREFUL;
 261 static int error_concealment = 3;
 262 static int decoder_reorder_pts= -1;
 263 static int autoexit;
 264 static int exit_on_keydown;
 265 static int exit_on_mousedown;
 266 static int loop=1;
 267 static int framedrop=1;
 268
 269 static int rdftspeed=20;
 270 #if CONFIG_AVFILTER
 271 static char *vfilters = NULL;
 272 #endif
 273
 274 /* current context */
 275 static int is_full_screen;
 276 static VideoState *cur_stream;
 277 static int64_t audio_callback_time;
 278
 279 static AVPacket flush_pkt;
 280
 281 #define FF_ALLOC_EVENT   (SDL_USEREVENT)
 282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
 283 #define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
 284
 285 static SDL_Surface *screen;
 286
 287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
 288
 289 /* packet queue handling */
 290 static void packet_queue_init(PacketQueue *q)
 291 {
 292     memset(q, 0, sizeof(PacketQueue));
 293     q->mutex = SDL_CreateMutex();
 294     q->cond = SDL_CreateCond();
 295     packet_queue_put(q, &flush_pkt);
 296 }
 297
 298 static void packet_queue_flush(PacketQueue *q)
 299 {
 300     AVPacketList *pkt, *pkt1;
 301
 302     SDL_LockMutex(q->mutex);
 303     for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
 304         pkt1 = pkt->next;
 305         av_free_packet(&pkt->pkt);
 306         av_freep(&pkt);
 307     }
 308     q->last_pkt = NULL;
 309     q->first_pkt = NULL;
 310     q->nb_packets = 0;
 311     q->size = 0;
 312     SDL_UnlockMutex(q->mutex);
 313 }
 314
 315 static void packet_queue_end(PacketQueue *q)
 316 {
 317     packet_queue_flush(q);
 318     SDL_DestroyMutex(q->mutex);
 319     SDL_DestroyCond(q->cond);
 320 }
 321
 322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 323 {
 324     AVPacketList *pkt1;
 325
 326     /* duplicate the packet */
 327     if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
 328         return -1;
 329
 330     pkt1 = av_malloc(sizeof(AVPacketList));
 331     if (!pkt1)
 332         return -1;
 333     pkt1->pkt = *pkt;
 334     pkt1->next = NULL;
 335
 336
 337     SDL_LockMutex(q->mutex);
 338
 339     if (!q->last_pkt)
 340
 341         q->first_pkt = pkt1;
 342     else
 343         q->last_pkt->next = pkt1;
 344     q->last_pkt = pkt1;
 345     q->nb_packets++;
 346     q->size += pkt1->pkt.size + sizeof(*pkt1);
 347     /* XXX: should duplicate packet data in DV case */
 348     SDL_CondSignal(q->cond);
 349
 350     SDL_UnlockMutex(q->mutex);
 351     return 0;
 352 }
 353
 354 static void packet_queue_abort(PacketQueue *q)
 355 {
 356     SDL_LockMutex(q->mutex);
 357
 358     q->abort_request = 1;
 359
 360     SDL_CondSignal(q->cond);
 361
 362     SDL_UnlockMutex(q->mutex);
 363 }
 364
 365 /* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
 366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
 367 {
 368     AVPacketList *pkt1;
 369     int ret;
 370
 371     SDL_LockMutex(q->mutex);
 372
 373     for(;;) {
 374         if (q->abort_request) {
 375             ret = -1;
 376             break;
 377         }
 378
 379         pkt1 = q->first_pkt;
 380         if (pkt1) {
 381             q->first_pkt = pkt1->next;
 382             if (!q->first_pkt)
 383                 q->last_pkt = NULL;
 384             q->nb_packets--;
 385             q->size -= pkt1->pkt.size + sizeof(*pkt1);
 386             *pkt = pkt1->pkt;
 387             av_free(pkt1);
 388             ret = 1;
 389             break;
 390         } else if (!block) {
 391             ret = 0;
 392             break;
 393         } else {
 394             SDL_CondWait(q->cond, q->mutex);
 395         }
 396     }
 397     SDL_UnlockMutex(q->mutex);
 398     return ret;
 399 }
 400
 401 static inline void fill_rectangle(SDL_Surface *screen,
 402                                   int x, int y, int w, int h, int color)
 403 {
 404     SDL_Rect rect;
 405     rect.x = x;
 406     rect.y = y;
 407     rect.w = w;
 408     rect.h = h;
 409     SDL_FillRect(screen, &rect, color);
 410 }
 411
 412 #if 0
 413 /* draw only the border of a rectangle */
 414 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
 415 {
 416     int w1, w2, h1, h2;
 417
 418     /* fill the background */
 419     w1 = x;
 420     if (w1 < 0)
 421         w1 = 0;
 422     w2 = s->width - (x + w);
 423     if (w2 < 0)
 424         w2 = 0;
 425     h1 = y;
 426     if (h1 < 0)
 427         h1 = 0;
 428     h2 = s->height - (y + h);
 429     if (h2 < 0)
 430         h2 = 0;
 431     fill_rectangle(screen,
 432                    s->xleft, s->ytop,
 433                    w1, s->height,
 434                    color);
 435     fill_rectangle(screen,
 436                    s->xleft + s->width - w2, s->ytop,
 437                    w2, s->height,
 438                    color);
 439     fill_rectangle(screen,
 440                    s->xleft + w1, s->ytop,
 441                    s->width - w1 - w2, h1,
 442                    color);
 443     fill_rectangle(screen,
 444                    s->xleft + w1, s->ytop + s->height - h2,
 445                    s->width - w1 - w2, h2,
 446                    color);
 447 }
 448 #endif
 449
 450 #define ALPHA_BLEND(a, oldp, newp, s)\
 451 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
 452
 453 #define RGBA_IN(r, g, b, a, s)\
 454 {\
 455     unsigned int v = ((const uint32_t *)(s))[0];\
 456     a = (v >> 24) & 0xff;\
 457     r = (v >> 16) & 0xff;\
 458     g = (v >> 8) & 0xff;\
 459     b = v & 0xff;\
 460 }
 461
 462 #define YUVA_IN(y, u, v, a, s, pal)\
 463 {\
 464     unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
 465     a = (val >> 24) & 0xff;\
 466     y = (val >> 16) & 0xff;\
 467     u = (val >> 8) & 0xff;\
 468     v = val & 0xff;\
 469 }
 470
 471 #define YUVA_OUT(d, y, u, v, a)\
 472 {\
 473     ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
 474 }
 475
 476
 477 #define BPP 1
 478
 479 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
 480 {
 481     int wrap, wrap3, width2, skip2;
 482     int y, u, v, a, u1, v1, a1, w, h;
 483     uint8_t *lum, *cb, *cr;
 484     const uint8_t *p;
 485     const uint32_t *pal;
 486     int dstx, dsty, dstw, dsth;
 487
 488     dstw = av_clip(rect->w, 0, imgw);
 489     dsth = av_clip(rect->h, 0, imgh);
 490     dstx = av_clip(rect->x, 0, imgw - dstw);
 491     dsty = av_clip(rect->y, 0, imgh - dsth);
 492     lum = dst->data[0] + dsty * dst->linesize[0];
 493     cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
 494     cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
 495
 496     width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
 497     skip2 = dstx >> 1;
 498     wrap = dst->linesize[0];
 499     wrap3 = rect->pict.linesize[0];
 500     p = rect->pict.data[0];
 501     pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
 502
 503     if (dsty & 1) {
 504         lum += dstx;
 505         cb += skip2;
 506         cr += skip2;
 507
 508         if (dstx & 1) {
 509             YUVA_IN(y, u, v, a, p, pal);
 510             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 511             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 512             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 513             cb++;
 514             cr++;
 515             lum++;
 516             p += BPP;
 517         }
 518         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 519             YUVA_IN(y, u, v, a, p, pal);
 520             u1 = u;
 521             v1 = v;
 522             a1 = a;
 523             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 524
 525             YUVA_IN(y, u, v, a, p + BPP, pal);
 526             u1 += u;
 527             v1 += v;
 528             a1 += a;
 529             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 530             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 531             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 532             cb++;
 533             cr++;
 534             p += 2 * BPP;
 535             lum += 2;
 536         }
 537         if (w) {
 538             YUVA_IN(y, u, v, a, p, pal);
 539             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 540             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 541             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 542             p++;
 543             lum++;
 544         }
 545         p += wrap3 - dstw * BPP;
 546         lum += wrap - dstw - dstx;
 547         cb += dst->linesize[1] - width2 - skip2;
 548         cr += dst->linesize[2] - width2 - skip2;
 549     }
 550     for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
 551         lum += dstx;
 552         cb += skip2;
 553         cr += skip2;
 554
 555         if (dstx & 1) {
 556             YUVA_IN(y, u, v, a, p, pal);
 557             u1 = u;
 558             v1 = v;
 559             a1 = a;
 560             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 561             p += wrap3;
 562             lum += wrap;
 563             YUVA_IN(y, u, v, a, p, pal);
 564             u1 += u;
 565             v1 += v;
 566             a1 += a;
 567             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 568             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 569             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 570             cb++;
 571             cr++;
 572             p += -wrap3 + BPP;
 573             lum += -wrap + 1;
 574         }
 575         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 576             YUVA_IN(y, u, v, a, p, pal);
 577             u1 = u;
 578             v1 = v;
 579             a1 = a;
 580             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 581
 582             YUVA_IN(y, u, v, a, p + BPP, pal);
 583             u1 += u;
 584             v1 += v;
 585             a1 += a;
 586             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 587             p += wrap3;
 588             lum += wrap;
 589
 590             YUVA_IN(y, u, v, a, p, pal);
 591             u1 += u;
 592             v1 += v;
 593             a1 += a;
 594             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 595
 596             YUVA_IN(y, u, v, a, p + BPP, pal);
 597             u1 += u;
 598             v1 += v;
 599             a1 += a;
 600             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 601
 602             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
 603             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
 604
 605             cb++;
 606             cr++;
 607             p += -wrap3 + 2 * BPP;
 608             lum += -wrap + 2;
 609         }
 610         if (w) {
 611             YUVA_IN(y, u, v, a, p, pal);
 612             u1 = u;
 613             v1 = v;
 614             a1 = a;
 615             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 616             p += wrap3;
 617             lum += wrap;
 618             YUVA_IN(y, u, v, a, p, pal);
 619             u1 += u;
 620             v1 += v;
 621             a1 += a;
 622             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 623             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 624             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 625             cb++;
 626             cr++;
 627             p += -wrap3 + BPP;
 628             lum += -wrap + 1;
 629         }
 630         p += wrap3 + (wrap3 - dstw * BPP);
 631         lum += wrap + (wrap - dstw - dstx);
 632         cb += dst->linesize[1] - width2 - skip2;
 633         cr += dst->linesize[2] - width2 - skip2;
 634     }
 635     /* handle odd height */
 636     if (h) {
 637         lum += dstx;
 638         cb += skip2;
 639         cr += skip2;
 640
 641         if (dstx & 1) {
 642             YUVA_IN(y, u, v, a, p, pal);
 643             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 644             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 645             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 646             cb++;
 647             cr++;
 648             lum++;
 649             p += BPP;
 650         }
 651         for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
 652             YUVA_IN(y, u, v, a, p, pal);
 653             u1 = u;
 654             v1 = v;
 655             a1 = a;
 656             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 657
 658             YUVA_IN(y, u, v, a, p + BPP, pal);
 659             u1 += u;
 660             v1 += v;
 661             a1 += a;
 662             lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 663             cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
 664             cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
 665             cb++;
 666             cr++;
 667             p += 2 * BPP;
 668             lum += 2;
 669         }
 670         if (w) {
 671             YUVA_IN(y, u, v, a, p, pal);
 672             lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 673             cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 674             cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 675         }
 676     }
 677 }
 678
 679 static void free_subpicture(SubPicture *sp)
 680 {
 681     avsubtitle_free(&sp->sub);
 682 }
 683
 684 static void video_image_display(VideoState *is)
 685 {
 686     VideoPicture *vp;
 687     SubPicture *sp;
 688     AVPicture pict;
 689     float aspect_ratio;
 690     int width, height, x, y;
 691     SDL_Rect rect;
 692     int i;
 693
 694     vp = &is->pictq[is->pictq_rindex];
 695     if (vp->bmp) {
 696 #if CONFIG_AVFILTER
 697          if (vp->picref->video->pixel_aspect.num == 0)
 698              aspect_ratio = 0;
 699          else
 700              aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
 701 #else
 702
 703         /* XXX: use variable in the frame */
 704         if (is->video_st->sample_aspect_ratio.num)
 705             aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
 706         else if (is->video_st->codec->sample_aspect_ratio.num)
 707             aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
 708         else
 709             aspect_ratio = 0;
 710 #endif
 711         if (aspect_ratio <= 0.0)
 712             aspect_ratio = 1.0;
 713         aspect_ratio *= (float)vp->width / (float)vp->height;
 714         /* if an active format is indicated, then it overrides the
 715            mpeg format */
 716 #if 0
 717         if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
 718             is->dtg_active_format = is->video_st->codec->dtg_active_format;
 719             printf("dtg_active_format=%d\n", is->dtg_active_format);
 720         }
 721 #endif
 722 #if 0
 723         switch(is->video_st->codec->dtg_active_format) {
 724         case FF_DTG_AFD_SAME:
 725         default:
 726             /* nothing to do */
 727             break;
 728         case FF_DTG_AFD_4_3:
 729             aspect_ratio = 4.0 / 3.0;
 730             break;
 731         case FF_DTG_AFD_16_9:
 732             aspect_ratio = 16.0 / 9.0;
 733             break;
 734         case FF_DTG_AFD_14_9:
 735             aspect_ratio = 14.0 / 9.0;
 736             break;
 737         case FF_DTG_AFD_4_3_SP_14_9:
 738             aspect_ratio = 14.0 / 9.0;
 739             break;
 740         case FF_DTG_AFD_16_9_SP_14_9:
 741             aspect_ratio = 14.0 / 9.0;
 742             break;
 743         case FF_DTG_AFD_SP_4_3:
 744             aspect_ratio = 4.0 / 3.0;
 745             break;
 746         }
 747 #endif
 748
 749         if (is->subtitle_st)
 750         {
 751             if (is->subpq_size > 0)
 752             {
 753                 sp = &is->subpq[is->subpq_rindex];
 754
 755                 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
 756                 {
 757                     SDL_LockYUVOverlay (vp->bmp);
 758
 759                     pict.data[0] = vp->bmp->pixels[0];
 760                     pict.data[1] = vp->bmp->pixels[2];
 761                     pict.data[2] = vp->bmp->pixels[1];
 762
 763                     pict.linesize[0] = vp->bmp->pitches[0];
 764                     pict.linesize[1] = vp->bmp->pitches[2];
 765                     pict.linesize[2] = vp->bmp->pitches[1];
 766
 767                     for (i = 0; i < sp->sub.num_rects; i++)
 768                         blend_subrect(&pict, sp->sub.rects[i],
 769                                       vp->bmp->w, vp->bmp->h);
 770
 771                     SDL_UnlockYUVOverlay (vp->bmp);
 772                 }
 773             }
 774         }
 775
 776
 777         /* XXX: we suppose the screen has a 1.0 pixel ratio */
 778         height = is->height;
 779         width = ((int)rint(height * aspect_ratio)) & ~1;
 780         if (width > is->width) {
 781             width = is->width;
 782             height = ((int)rint(width / aspect_ratio)) & ~1;
 783         }
 784         x = (is->width - width) / 2;
 785         y = (is->height - height) / 2;
 786         if (!is->no_background) {
 787             /* fill the background */
 788             //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
 789         } else {
 790             is->no_background = 0;
 791         }
 792         rect.x = is->xleft + x;
 793         rect.y = is->ytop  + y;
 794         rect.w = width;
 795         rect.h = height;
 796         SDL_DisplayYUVOverlay(vp->bmp, &rect);
 797     } else {
 798 #if 0
 799         fill_rectangle(screen,
 800                        is->xleft, is->ytop, is->width, is->height,
 801                        QERGB(0x00, 0x00, 0x00));
 802 #endif
 803     }
 804 }
 805
 806 static inline int compute_mod(int a, int b)
 807 {
 808     a = a % b;
 809     if (a >= 0)
 810         return a;
 811     else
 812         return a + b;
 813 }
 814
 815 static void video_audio_display(VideoState *s)
 816 {
 817     int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
 818     int ch, channels, h, h2, bgcolor, fgcolor;
 819     int16_t time_diff;
 820     int rdft_bits, nb_freq;
 821
 822     for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
 823         ;
 824     nb_freq= 1<<(rdft_bits-1);
 825
 826     /* compute display index : center on currently output samples */
 827     channels = s->audio_st->codec->channels;
 828     nb_display_channels = channels;
 829     if (!s->paused) {
 830         int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
 831         n = 2 * channels;
 832         delay = audio_write_get_buf_size(s);
 833         delay /= n;
 834
 835         /* to be more precise, we take into account the time spent since
 836            the last buffer computation */
 837         if (audio_callback_time) {
 838             time_diff = av_gettime() - audio_callback_time;
 839             delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
 840         }
 841
 842         delay += 2*data_used;
 843         if (delay < data_used)
 844             delay = data_used;
 845
 846         i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
 847         if(s->show_audio==1){
 848             h= INT_MIN;
 849             for(i=0; i<1000; i+=channels){
 850                 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
 851                 int a= s->sample_array[idx];
 852                 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
 853                 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
 854                 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
 855                 int score= a-d;
 856                 if(h<score && (b^c)<0){
 857                     h= score;
 858                     i_start= idx;
 859                 }
 860             }
 861         }
 862
 863         s->last_i_start = i_start;
 864     } else {
 865         i_start = s->last_i_start;
 866     }
 867
 868     bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
 869     if(s->show_audio==1){
 870         fill_rectangle(screen,
 871                        s->xleft, s->ytop, s->width, s->height,
 872                        bgcolor);
 873
 874         fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
 875
 876         /* total height for one channel */
 877         h = s->height / nb_display_channels;
 878         /* graph height / 2 */
 879         h2 = (h * 9) / 20;
 880         for(ch = 0;ch < nb_display_channels; ch++) {
 881             i = i_start + ch;
 882             y1 = s->ytop + ch * h + (h / 2); /* position of center line */
 883             for(x = 0; x < s->width; x++) {
 884                 y = (s->sample_array[i] * h2) >> 15;
 885                 if (y < 0) {
 886                     y = -y;
 887                     ys = y1 - y;
 888                 } else {
 889                     ys = y1;
 890                 }
 891                 fill_rectangle(screen,
 892                                s->xleft + x, ys, 1, y,
 893                                fgcolor);
 894                 i += channels;
 895                 if (i >= SAMPLE_ARRAY_SIZE)
 896                     i -= SAMPLE_ARRAY_SIZE;
 897             }
 898         }
 899
 900         fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
 901
 902         for(ch = 1;ch < nb_display_channels; ch++) {
 903             y = s->ytop + ch * h;
 904             fill_rectangle(screen,
 905                            s->xleft, y, s->width, 1,
 906                            fgcolor);
 907         }
 908         SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
 909     }else{
 910         nb_display_channels= FFMIN(nb_display_channels, 2);
 911         if(rdft_bits != s->rdft_bits){
 912             av_rdft_end(s->rdft);
 913             av_free(s->rdft_data);
 914             s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
 915             s->rdft_bits= rdft_bits;
 916             s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
 917         }
 918         {
 919             FFTSample *data[2];
 920             for(ch = 0;ch < nb_display_channels; ch++) {
 921                 data[ch] = s->rdft_data + 2*nb_freq*ch;
 922                 i = i_start + ch;
 923                 for(x = 0; x < 2*nb_freq; x++) {
 924                     double w= (x-nb_freq)*(1.0/nb_freq);
 925                     data[ch][x]= s->sample_array[i]*(1.0-w*w);
 926                     i += channels;
 927                     if (i >= SAMPLE_ARRAY_SIZE)
 928                         i -= SAMPLE_ARRAY_SIZE;
 929                 }
 930                 av_rdft_calc(s->rdft, data[ch]);
 931             }
 932             //least efficient way to do this, we should of course directly access it but its more than fast enough
 933             for(y=0; y<s->height; y++){
 934                 double w= 1/sqrt(nb_freq);
 935                 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
 936                 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
 937                        + data[1][2*y+1]*data[1][2*y+1])) : a;
 938                 a= FFMIN(a,255);
 939                 b= FFMIN(b,255);
 940                 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
 941
 942                 fill_rectangle(screen,
 943                             s->xpos, s->height-y, 1, 1,
 944                             fgcolor);
 945             }
 946         }
 947         SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
 948         s->xpos++;
 949         if(s->xpos >= s->width)
 950             s->xpos= s->xleft;
 951     }
 952 }
 953
 954 static int video_open(VideoState *is){
 955     int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
 956     int w,h;
 957
 958     if(is_full_screen) flags |= SDL_FULLSCREEN;
 959     else               flags |= SDL_RESIZABLE;
 960
 961     if (is_full_screen && fs_screen_width) {
 962         w = fs_screen_width;
 963         h = fs_screen_height;
 964     } else if(!is_full_screen && screen_width){
 965         w = screen_width;
 966         h = screen_height;
 967 #if CONFIG_AVFILTER
 968     }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
 969         w = is->out_video_filter->inputs[0]->w;
 970         h = is->out_video_filter->inputs[0]->h;
 971 #else
 972     }else if (is->video_st && is->video_st->codec->width){
 973         w = is->video_st->codec->width;
 974         h = is->video_st->codec->height;
 975 #endif
 976     } else {
 977         w = 640;
 978         h = 480;
 979     }
 980     if(screen && is->width == screen->w && screen->w == w
 981        && is->height== screen->h && screen->h == h)
 982         return 0;
 983
 984 #ifndef __APPLE__
 985     screen = SDL_SetVideoMode(w, h, 0, flags);
 986 #else
 987     /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
 988     screen = SDL_SetVideoMode(w, h, 24, flags);
 989 #endif
 990     if (!screen) {
 991         fprintf(stderr, "SDL: could not set video mode - exiting\n");
 992         return -1;
 993     }
 994     if (!window_title)
 995         window_title = input_filename;
 996     SDL_WM_SetCaption(window_title, window_title);
 997
 998     is->width = screen->w;
 999     is->height = screen->h;
1000
1001     return 0;
1002 }
1003
1004 /* display the current picture, if any */
1005 static void video_display(VideoState *is)
1006 {
1007     if(!screen)
1008         video_open(cur_stream);
1009     if (is->audio_st && is->show_audio)
1010         video_audio_display(is);
1011     else if (is->video_st)
1012         video_image_display(is);
1013 }
1014
1015 static int refresh_thread(void *opaque)
1016 {
1017     VideoState *is= opaque;
1018     while(!is->abort_request){
1019     SDL_Event event;
1020     event.type = FF_REFRESH_EVENT;
1021     event.user.data1 = opaque;
1022         if(!is->refresh){
1023             is->refresh=1;
1024     SDL_PushEvent(&event);
1025         }
1026         usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1027     }
1028     return 0;
1029 }
1030
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState *is)
1033 {
1034     double pts;
1035     int hw_buf_size, bytes_per_sec;
1036     pts = is->audio_clock;
1037     hw_buf_size = audio_write_get_buf_size(is);
1038     bytes_per_sec = 0;
1039     if (is->audio_st) {
1040         bytes_per_sec = is->audio_st->codec->sample_rate *
1041             2 * is->audio_st->codec->channels;
1042     }
1043     if (bytes_per_sec)
1044         pts -= (double)hw_buf_size / bytes_per_sec;
1045     return pts;
1046 }
1047
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState *is)
1050 {
1051     if (is->paused) {
1052         return is->video_current_pts;
1053     } else {
1054         return is->video_current_pts_drift + av_gettime() / 1000000.0;
1055     }
1056 }
1057
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState *is)
1060 {
1061     int64_t ti;
1062     ti = av_gettime();
1063     return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1064 }
1065
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState *is)
1068 {
1069     double val;
1070
1071     if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072         if (is->video_st)
1073             val = get_video_clock(is);
1074         else
1075             val = get_audio_clock(is);
1076     } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077         if (is->audio_st)
1078             val = get_audio_clock(is);
1079         else
1080             val = get_video_clock(is);
1081     } else {
1082         val = get_external_clock(is);
1083     }
1084     return val;
1085 }
1086
1087 /* seek in the stream */
1088 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1089 {
1090     if (!is->seek_req) {
1091         is->seek_pos = pos;
1092         is->seek_rel = rel;
1093         is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1094         if (seek_by_bytes)
1095             is->seek_flags |= AVSEEK_FLAG_BYTE;
1096         is->seek_req = 1;
1097     }
1098 }
1099
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState *is)
1102 {
1103     if (is->paused) {
1104         is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105         if(is->read_pause_return != AVERROR(ENOSYS)){
1106             is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1107         }
1108         is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1109     }
1110     is->paused = !is->paused;
1111 }
1112
1113 static double compute_target_time(double frame_current_pts, VideoState *is)
1114 {
1115     double delay, sync_threshold, diff;
1116
1117     /* compute nominal delay */
1118     delay = frame_current_pts - is->frame_last_pts;
1119     if (delay <= 0 || delay >= 10.0) {
1120         /* if incorrect delay, use previous one */
1121         delay = is->frame_last_delay;
1122     } else {
1123         is->frame_last_delay = delay;
1124     }
1125     is->frame_last_pts = frame_current_pts;
1126
1127     /* update delay to follow master synchronisation source */
1128     if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130         /* if video is slave, we try to correct big delays by
1131            duplicating or deleting a frame */
1132         diff = get_video_clock(is) - get_master_clock(is);
1133
1134         /* skip or repeat frame. We take into account the
1135            delay to compute the threshold. I still don't know
1136            if it is the best guess */
1137         sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138         if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139             if (diff <= -sync_threshold)
1140                 delay = 0;
1141             else if (diff >= sync_threshold)
1142                 delay = 2 * delay;
1143         }
1144     }
1145     is->frame_timer += delay;
1146 #if defined(DEBUG_SYNC)
1147     printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148             delay, actual_delay, frame_current_pts, -diff);
1149 #endif
1150
1151     return is->frame_timer;
1152 }
1153
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque)
1156 {
1157     VideoState *is = opaque;
1158     VideoPicture *vp;
1159
1160     SubPicture *sp, *sp2;
1161
1162     if (is->video_st) {
1163 retry:
1164         if (is->pictq_size == 0) {
1165             //nothing to do, no picture to display in the que
1166         } else {
1167             double time= av_gettime()/1000000.0;
1168             double next_target;
1169             /* dequeue the picture */
1170             vp = &is->pictq[is->pictq_rindex];
1171
1172             if(time < vp->target_clock)
1173                 return;
1174             /* update current video pts */
1175             is->video_current_pts = vp->pts;
1176             is->video_current_pts_drift = is->video_current_pts - time;
1177             is->video_current_pos = vp->pos;
1178             if(is->pictq_size > 1){
1179                 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180                 assert(nextvp->target_clock >= vp->target_clock);
1181                 next_target= nextvp->target_clock;
1182             }else{
1183                 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1184             }
1185             if(framedrop && time > next_target){
1186                 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187                 if(is->pictq_size > 1 || time > next_target + 0.5){
1188                     /* update queue size and signal for next picture */
1189                     if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190                         is->pictq_rindex = 0;
1191
1192                     SDL_LockMutex(is->pictq_mutex);
1193                     is->pictq_size--;
1194                     SDL_CondSignal(is->pictq_cond);
1195                     SDL_UnlockMutex(is->pictq_mutex);
1196                     goto retry;
1197                 }
1198             }
1199
1200             if(is->subtitle_st) {
1201                 if (is->subtitle_stream_changed) {
1202                     SDL_LockMutex(is->subpq_mutex);
1203
1204                     while (is->subpq_size) {
1205                         free_subpicture(&is->subpq[is->subpq_rindex]);
1206
1207                         /* update queue size and signal for next picture */
1208                         if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209                             is->subpq_rindex = 0;
1210
1211                         is->subpq_size--;
1212                     }
1213                     is->subtitle_stream_changed = 0;
1214
1215                     SDL_CondSignal(is->subpq_cond);
1216                     SDL_UnlockMutex(is->subpq_mutex);
1217                 } else {
1218                     if (is->subpq_size > 0) {
1219                         sp = &is->subpq[is->subpq_rindex];
1220
1221                         if (is->subpq_size > 1)
1222                             sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1223                         else
1224                             sp2 = NULL;
1225
1226                         if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227                                 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1228                         {
1229                             free_subpicture(sp);
1230
1231                             /* update queue size and signal for next picture */
1232                             if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233                                 is->subpq_rindex = 0;
1234
1235                             SDL_LockMutex(is->subpq_mutex);
1236                             is->subpq_size--;
1237                             SDL_CondSignal(is->subpq_cond);
1238                             SDL_UnlockMutex(is->subpq_mutex);
1239                         }
1240                     }
1241                 }
1242             }
1243
1244             /* display picture */
1245             video_display(is);
1246
1247             /* update queue size and signal for next picture */
1248             if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249                 is->pictq_rindex = 0;
1250
1251             SDL_LockMutex(is->pictq_mutex);
1252             is->pictq_size--;
1253             SDL_CondSignal(is->pictq_cond);
1254             SDL_UnlockMutex(is->pictq_mutex);
1255         }
1256     } else if (is->audio_st) {
1257         /* draw the next audio frame */
1258
1259         /* if only audio stream, then display the audio bars (better
1260            than nothing, just to test the implementation */
1261
1262         /* display picture */
1263         video_display(is);
1264     }
1265     if (show_status) {
1266         static int64_t last_time;
1267         int64_t cur_time;
1268         int aqsize, vqsize, sqsize;
1269         double av_diff;
1270
1271         cur_time = av_gettime();
1272         if (!last_time || (cur_time - last_time) >= 30000) {
1273             aqsize = 0;
1274             vqsize = 0;
1275             sqsize = 0;
1276             if (is->audio_st)
1277                 aqsize = is->audioq.size;
1278             if (is->video_st)
1279                 vqsize = is->videoq.size;
1280             if (is->subtitle_st)
1281                 sqsize = is->subtitleq.size;
1282             av_diff = 0;
1283             if (is->audio_st && is->video_st)
1284                 av_diff = get_audio_clock(is) - get_video_clock(is);
1285             printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1286                    get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1287             fflush(stdout);
1288             last_time = cur_time;
1289         }
1290     }
1291 }
1292
1293 static void stream_close(VideoState *is)
1294 {
1295     VideoPicture *vp;
1296     int i;
1297     /* XXX: use a special url_shutdown call to abort parse cleanly */
1298     is->abort_request = 1;
1299     SDL_WaitThread(is->parse_tid, NULL);
1300     SDL_WaitThread(is->refresh_tid, NULL);
1301
1302     /* free all pictures */
1303     for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1304         vp = &is->pictq[i];
1305 #if CONFIG_AVFILTER
1306         if (vp->picref) {
1307             avfilter_unref_buffer(vp->picref);
1308             vp->picref = NULL;
1309         }
1310 #endif
1311         if (vp->bmp) {
1312             SDL_FreeYUVOverlay(vp->bmp);
1313             vp->bmp = NULL;
1314         }
1315     }
1316     SDL_DestroyMutex(is->pictq_mutex);
1317     SDL_DestroyCond(is->pictq_cond);
1318     SDL_DestroyMutex(is->subpq_mutex);
1319     SDL_DestroyCond(is->subpq_cond);
1320 #if !CONFIG_AVFILTER
1321     if (is->img_convert_ctx)
1322         sws_freeContext(is->img_convert_ctx);
1323 #endif
1324     av_free(is);
1325 }
1326
1327 static void do_exit(void)
1328 {
1329     if (cur_stream) {
1330         stream_close(cur_stream);
1331         cur_stream = NULL;
1332     }
1333     uninit_opts();
1334 #if CONFIG_AVFILTER
1335     avfilter_uninit();
1336 #endif
1337     if (show_status)
1338         printf("\n");
1339     SDL_Quit();
1340     av_log(NULL, AV_LOG_QUIET, "");
1341     exit(0);
1342 }
1343
1344 /* allocate a picture (needs to do that in main thread to avoid
1345    potential locking problems */
1346 static void alloc_picture(void *opaque)
1347 {
1348     VideoState *is = opaque;
1349     VideoPicture *vp;
1350
1351     vp = &is->pictq[is->pictq_windex];
1352
1353     if (vp->bmp)
1354         SDL_FreeYUVOverlay(vp->bmp);
1355
1356 #if CONFIG_AVFILTER
1357     if (vp->picref)
1358         avfilter_unref_buffer(vp->picref);
1359     vp->picref = NULL;
1360
1361     vp->width   = is->out_video_filter->inputs[0]->w;
1362     vp->height  = is->out_video_filter->inputs[0]->h;
1363     vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1364 #else
1365     vp->width   = is->video_st->codec->width;
1366     vp->height  = is->video_st->codec->height;
1367     vp->pix_fmt = is->video_st->codec->pix_fmt;
1368 #endif
1369
1370     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1371                                    SDL_YV12_OVERLAY,
1372                                    screen);
1373     if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1374         /* SDL allocates a buffer smaller than requested if the video
1375          * overlay hardware is unable to support the requested size. */
1376         fprintf(stderr, "Error: the video system does not support an image\n"
1377                         "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1378                         "to reduce the image size.\n", vp->width, vp->height );
1379         do_exit();
1380     }
1381
1382     SDL_LockMutex(is->pictq_mutex);
1383     vp->allocated = 1;
1384     SDL_CondSignal(is->pictq_cond);
1385     SDL_UnlockMutex(is->pictq_mutex);
1386 }
1387
1388 /**
1389  *
1390  * @param pts the dts of the pkt / pts of the frame and guessed if not known
1391  */
1392 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1393 {
1394     VideoPicture *vp;
1395     int dst_pix_fmt;
1396 #if CONFIG_AVFILTER
1397     AVPicture pict_src;
1398 #endif
1399     /* wait until we have space to put a new picture */
1400     SDL_LockMutex(is->pictq_mutex);
1401
1402     if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1403         is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1404
1405     while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1406            !is->videoq.abort_request) {
1407         SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1408     }
1409     SDL_UnlockMutex(is->pictq_mutex);
1410
1411     if (is->videoq.abort_request)
1412         return -1;
1413
1414     vp = &is->pictq[is->pictq_windex];
1415
1416     /* alloc or resize hardware picture buffer */
1417     if (!vp->bmp ||
1418 #if CONFIG_AVFILTER
1419         vp->width  != is->out_video_filter->inputs[0]->w ||
1420         vp->height != is->out_video_filter->inputs[0]->h) {
1421 #else
1422         vp->width != is->video_st->codec->width ||
1423         vp->height != is->video_st->codec->height) {
1424 #endif
1425         SDL_Event event;
1426
1427         vp->allocated = 0;
1428
1429         /* the allocation must be done in the main thread to avoid
1430            locking problems */
1431         event.type = FF_ALLOC_EVENT;
1432         event.user.data1 = is;
1433         SDL_PushEvent(&event);
1434
1435         /* wait until the picture is allocated */
1436         SDL_LockMutex(is->pictq_mutex);
1437         while (!vp->allocated && !is->videoq.abort_request) {
1438             SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1439         }
1440         SDL_UnlockMutex(is->pictq_mutex);
1441
1442         if (is->videoq.abort_request)
1443             return -1;
1444     }
1445
1446     /* if the frame is not skipped, then display it */
1447     if (vp->bmp) {
1448         AVPicture pict;
1449 #if CONFIG_AVFILTER
1450         if(vp->picref)
1451             avfilter_unref_buffer(vp->picref);
1452         vp->picref = src_frame->opaque;
1453 #endif
1454
1455         /* get a pointer on the bitmap */
1456         SDL_LockYUVOverlay (vp->bmp);
1457
1458         dst_pix_fmt = PIX_FMT_YUV420P;
1459         memset(&pict,0,sizeof(AVPicture));
1460         pict.data[0] = vp->bmp->pixels[0];
1461         pict.data[1] = vp->bmp->pixels[2];
1462         pict.data[2] = vp->bmp->pixels[1];
1463
1464         pict.linesize[0] = vp->bmp->pitches[0];
1465         pict.linesize[1] = vp->bmp->pitches[2];
1466         pict.linesize[2] = vp->bmp->pitches[1];
1467
1468 #if CONFIG_AVFILTER
1469         pict_src.data[0] = src_frame->data[0];
1470         pict_src.data[1] = src_frame->data[1];
1471         pict_src.data[2] = src_frame->data[2];
1472
1473         pict_src.linesize[0] = src_frame->linesize[0];
1474         pict_src.linesize[1] = src_frame->linesize[1];
1475         pict_src.linesize[2] = src_frame->linesize[2];
1476
1477         //FIXME use direct rendering
1478         av_picture_copy(&pict, &pict_src,
1479                         vp->pix_fmt, vp->width, vp->height);
1480 #else
1481         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1482         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1483             vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1484             dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1485         if (is->img_convert_ctx == NULL) {
1486             fprintf(stderr, "Cannot initialize the conversion context\n");
1487             exit(1);
1488         }
1489         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1490                   0, vp->height, pict.data, pict.linesize);
1491 #endif
1492         /* update the bitmap content */
1493         SDL_UnlockYUVOverlay(vp->bmp);
1494
1495         vp->pts = pts;
1496         vp->pos = pos;
1497
1498         /* now we can update the picture count */
1499         if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1500             is->pictq_windex = 0;
1501         SDL_LockMutex(is->pictq_mutex);
1502         vp->target_clock= compute_target_time(vp->pts, is);
1503
1504         is->pictq_size++;
1505         SDL_UnlockMutex(is->pictq_mutex);
1506     }
1507     return 0;
1508 }
1509
1510 /**
1511  * compute the exact PTS for the picture if it is omitted in the stream
1512  * @param pts1 the dts of the pkt / pts of the frame
1513  */
1514 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1515 {
1516     double frame_delay, pts;
1517
1518     pts = pts1;
1519
1520     if (pts != 0) {
1521         /* update video clock with pts, if present */
1522         is->video_clock = pts;
1523     } else {
1524         pts = is->video_clock;
1525     }
1526     /* update video clock for next frame */
1527     frame_delay = av_q2d(is->video_st->codec->time_base);
1528     /* for MPEG2, the frame can be repeated, so we update the
1529        clock accordingly */
1530     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1531     is->video_clock += frame_delay;
1532
1533 #if defined(DEBUG_SYNC) && 0
1534     printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1535            av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1536 #endif
1537     return queue_picture(is, src_frame, pts, pos);
1538 }
1539
1540 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1541 {
1542     int len1, got_picture, i;
1543
1544         if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1545             return -1;
1546
1547         if(pkt->data == flush_pkt.data){
1548             avcodec_flush_buffers(is->video_st->codec);
1549
1550             SDL_LockMutex(is->pictq_mutex);
1551             //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1552             for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1553                 is->pictq[i].target_clock= 0;
1554             }
1555             while (is->pictq_size && !is->videoq.abort_request) {
1556                 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1557             }
1558             is->video_current_pos= -1;
1559             SDL_UnlockMutex(is->pictq_mutex);
1560
1561             init_pts_correction(&is->pts_ctx);
1562             is->frame_last_pts= AV_NOPTS_VALUE;
1563             is->frame_last_delay = 0;
1564             is->frame_timer = (double)av_gettime() / 1000000.0;
1565             is->skip_frames= 1;
1566             is->skip_frames_index= 0;
1567             return 0;
1568         }
1569
1570         /* NOTE: ipts is the PTS of the _first_ picture beginning in
1571            this packet, if any */
1572         is->video_st->codec->reordered_opaque= pkt->pts;
1573         len1 = avcodec_decode_video2(is->video_st->codec,
1574                                     frame, &got_picture,
1575                                     pkt);
1576
1577         if (got_picture) {
1578             if (decoder_reorder_pts == -1) {
1579                 *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1580             } else if (decoder_reorder_pts) {
1581                 *pts = frame->reordered_opaque;
1582             } else {
1583                 *pts = pkt->dts;
1584             }
1585
1586             if (*pts == AV_NOPTS_VALUE) {
1587                 *pts = 0;
1588             }
1589         }
1590
1591 //            if (len1 < 0)
1592 //                break;
1593     if (got_picture){
1594         is->skip_frames_index += 1;
1595         if(is->skip_frames_index >= is->skip_frames){
1596             is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1597             return 1;
1598         }
1599
1600     }
1601     return 0;
1602 }
1603
1604 #if CONFIG_AVFILTER
1605 typedef struct {
1606     VideoState *is;
1607     AVFrame *frame;
1608     int use_dr1;
1609 } FilterPriv;
1610
1611 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1612 {
1613     AVFilterContext *ctx = codec->opaque;
1614     AVFilterBufferRef  *ref;
1615     int perms = AV_PERM_WRITE;
1616     int i, w, h, stride[4];
1617     unsigned edge;
1618
1619     if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1620         if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1621         if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1622         if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623     }
1624     if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1625
1626     w = codec->width;
1627     h = codec->height;
1628     avcodec_align_dimensions2(codec, &w, &h, stride);
1629     edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1630     w += edge << 1;
1631     h += edge << 1;
1632
1633     if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1634         return -1;
1635
1636     ref->video->w = codec->width;
1637     ref->video->h = codec->height;
1638     for(i = 0; i < 4; i ++) {
1639         unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1640         unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1641
1642         if (ref->data[i]) {
1643             ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644         }
1645         pic->data[i]     = ref->data[i];
1646         pic->linesize[i] = ref->linesize[i];
1647     }
1648     pic->opaque = ref;
1649     pic->age    = INT_MAX;
1650     pic->type   = FF_BUFFER_TYPE_USER;
1651     pic->reordered_opaque = codec->reordered_opaque;
1652     return 0;
1653 }
1654
1655 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1656 {
1657     memset(pic->data, 0, sizeof(pic->data));
1658     avfilter_unref_buffer(pic->opaque);
1659 }
1660
1661 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1662 {
1663     AVFilterBufferRef *ref = pic->opaque;
1664
1665     if (pic->data[0] == NULL) {
1666         pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1667         return codec->get_buffer(codec, pic);
1668     }
1669
1670     if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1671         (codec->pix_fmt != ref->format)) {
1672         av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1673         return -1;
1674     }
1675
1676     pic->reordered_opaque = codec->reordered_opaque;
1677     return 0;
1678 }
1679
1680 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1681 {
1682     FilterPriv *priv = ctx->priv;
1683     AVCodecContext *codec;
1684     if(!opaque) return -1;
1685
1686     priv->is = opaque;
1687     codec    = priv->is->video_st->codec;
1688     codec->opaque = ctx;
1689     if(codec->codec->capabilities & CODEC_CAP_DR1) {
1690         priv->use_dr1 = 1;
1691         codec->get_buffer     = input_get_buffer;
1692         codec->release_buffer = input_release_buffer;
1693         codec->reget_buffer   = input_reget_buffer;
1694     }
1695
1696     priv->frame = avcodec_alloc_frame();
1697
1698     return 0;
1699 }
1700
1701 static void input_uninit(AVFilterContext *ctx)
1702 {
1703     FilterPriv *priv = ctx->priv;
1704     av_free(priv->frame);
1705 }
1706
1707 static int input_request_frame(AVFilterLink *link)
1708 {
1709     FilterPriv *priv = link->src->priv;
1710     AVFilterBufferRef *picref;
1711     int64_t pts = 0;
1712     AVPacket pkt;
1713     int ret;
1714
1715     while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1716         av_free_packet(&pkt);
1717     if (ret < 0)
1718         return -1;
1719
1720     if(priv->use_dr1) {
1721         picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1722     } else {
1723         picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1724         av_image_copy(picref->data, picref->linesize,
1725                       priv->frame->data, priv->frame->linesize,
1726                       picref->format, link->w, link->h);
1727     }
1728     av_free_packet(&pkt);
1729
1730     picref->pts = pts;
1731     picref->pos = pkt.pos;
1732     picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1733     avfilter_start_frame(link, picref);
1734     avfilter_draw_slice(link, 0, link->h, 1);
1735     avfilter_end_frame(link);
1736
1737     return 0;
1738 }
1739
1740 static int input_query_formats(AVFilterContext *ctx)
1741 {
1742     FilterPriv *priv = ctx->priv;
1743     enum PixelFormat pix_fmts[] = {
1744         priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1745     };
1746
1747     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1748     return 0;
1749 }
1750
1751 static int input_config_props(AVFilterLink *link)
1752 {
1753     FilterPriv *priv  = link->src->priv;
1754     AVCodecContext *c = priv->is->video_st->codec;
1755
1756     link->w = c->width;
1757     link->h = c->height;
1758     link->time_base = priv->is->video_st->time_base;
1759
1760     return 0;
1761 }
1762
1763 static AVFilter input_filter =
1764 {
1765     .name      = "ffplay_input",
1766
1767     .priv_size = sizeof(FilterPriv),
1768
1769     .init      = input_init,
1770     .uninit    = input_uninit,
1771
1772     .query_formats = input_query_formats,
1773
1774     .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1775     .outputs   = (AVFilterPad[]) {{ .name = "default",
1776                                     .type = AVMEDIA_TYPE_VIDEO,
1777                                     .request_frame = input_request_frame,
1778                                     .config_props  = input_config_props, },
1779                                   { .name = NULL }},
1780 };
1781
1782 #endif  /* CONFIG_AVFILTER */
1783
1784 static int video_thread(void *arg)
1785 {
1786     VideoState *is = arg;
1787     AVFrame *frame= avcodec_alloc_frame();
1788     int64_t pts_int;
1789     double pts;
1790     int ret;
1791
1792 #if CONFIG_AVFILTER
1793     int64_t pos;
1794     char sws_flags_str[128];
1795     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1796     AVFilterContext *filt_src = NULL, *filt_out = NULL;
1797     AVFilterGraph *graph = avfilter_graph_alloc();
1798     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1799     graph->scale_sws_opts = av_strdup(sws_flags_str);
1800
1801     if (avfilter_open(&filt_src, &input_filter,  "src") < 0) goto the_end;
1802     if (avfilter_open(&filt_out, &ffsink      ,  "out") < 0) goto the_end;
1803
1804     if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
1805     if(avfilter_init_filter(filt_out, NULL, &ffsink_ctx))    goto the_end;
1806
1807
1808     if(vfilters) {
1809         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1810         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1811
1812         outputs->name    = av_strdup("in");
1813         outputs->filter_ctx = filt_src;
1814         outputs->pad_idx = 0;
1815         outputs->next    = NULL;
1816
1817         inputs->name    = av_strdup("out");
1818         inputs->filter_ctx = filt_out;
1819         inputs->pad_idx = 0;
1820         inputs->next    = NULL;
1821
1822         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1823             goto the_end;
1824         av_freep(&vfilters);
1825     } else {
1826         if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1827     }
1828     avfilter_graph_add_filter(graph, filt_src);
1829     avfilter_graph_add_filter(graph, filt_out);
1830
1831     if (avfilter_graph_config(graph, NULL) < 0)
1832         goto the_end;
1833
1834     is->out_video_filter = filt_out;
1835 #endif
1836
1837     for(;;) {
1838 #if !CONFIG_AVFILTER
1839         AVPacket pkt;
1840 #else
1841         AVFilterBufferRef *picref;
1842         AVRational tb;
1843 #endif
1844         while (is->paused && !is->videoq.abort_request)
1845             SDL_Delay(10);
1846 #if CONFIG_AVFILTER
1847         ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1848         if (picref) {
1849             pts_int = picref->pts;
1850             pos     = picref->pos;
1851             frame->opaque = picref;
1852         }
1853
1854         if (av_cmp_q(tb, is->video_st->time_base)) {
1855             int64_t pts1 = pts_int;
1856             pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1857             av_log(NULL, AV_LOG_DEBUG, "video_thread(): "
1858                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1859                    tb.num, tb.den, pts1,
1860                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1861         }
1862 #else
1863         ret = get_video_frame(is, frame, &pts_int, &pkt);
1864 #endif
1865
1866         if (ret < 0) goto the_end;
1867
1868         if (!ret)
1869             continue;
1870
1871         pts = pts_int*av_q2d(is->video_st->time_base);
1872
1873 #if CONFIG_AVFILTER
1874         ret = output_picture2(is, frame, pts, pos);
1875 #else
1876         ret = output_picture2(is, frame, pts,  pkt.pos);
1877         av_free_packet(&pkt);
1878 #endif
1879         if (ret < 0)
1880             goto the_end;
1881
1882         if (step)
1883             if (cur_stream)
1884                 stream_pause(cur_stream);
1885     }
1886  the_end:
1887 #if CONFIG_AVFILTER
1888     avfilter_graph_free(graph);
1889     av_freep(&graph);
1890 #endif
1891     av_free(frame);
1892     return 0;
1893 }
1894
1895 static int subtitle_thread(void *arg)
1896 {
1897     VideoState *is = arg;
1898     SubPicture *sp;
1899     AVPacket pkt1, *pkt = &pkt1;
1900     int len1, got_subtitle;
1901     double pts;
1902     int i, j;
1903     int r, g, b, y, u, v, a;
1904
1905     for(;;) {
1906         while (is->paused && !is->subtitleq.abort_request) {
1907             SDL_Delay(10);
1908         }
1909         if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1910             break;
1911
1912         if(pkt->data == flush_pkt.data){
1913             avcodec_flush_buffers(is->subtitle_st->codec);
1914             continue;
1915         }
1916         SDL_LockMutex(is->subpq_mutex);
1917         while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1918                !is->subtitleq.abort_request) {
1919             SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1920         }
1921         SDL_UnlockMutex(is->subpq_mutex);
1922
1923         if (is->subtitleq.abort_request)
1924             goto the_end;
1925
1926         sp = &is->subpq[is->subpq_windex];
1927
1928        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1929            this packet, if any */
1930         pts = 0;
1931         if (pkt->pts != AV_NOPTS_VALUE)
1932             pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1933
1934         len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1935                                     &sp->sub, &got_subtitle,
1936                                     pkt);
1937 //            if (len1 < 0)
1938 //                break;
1939         if (got_subtitle && sp->sub.format == 0) {
1940             sp->pts = pts;
1941
1942             for (i = 0; i < sp->sub.num_rects; i++)
1943             {
1944                 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1945                 {
1946                     RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1947                     y = RGB_TO_Y_CCIR(r, g, b);
1948                     u = RGB_TO_U_CCIR(r, g, b, 0);
1949                     v = RGB_TO_V_CCIR(r, g, b, 0);
1950                     YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1951                 }
1952             }
1953
1954             /* now we can update the picture count */
1955             if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1956                 is->subpq_windex = 0;
1957             SDL_LockMutex(is->subpq_mutex);
1958             is->subpq_size++;
1959             SDL_UnlockMutex(is->subpq_mutex);
1960         }
1961         av_free_packet(pkt);
1962 //        if (step)
1963 //            if (cur_stream)
1964 //                stream_pause(cur_stream);
1965     }
1966  the_end:
1967     return 0;
1968 }
1969
1970 /* copy samples for viewing in editor window */
1971 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1972 {
1973     int size, len, channels;
1974
1975     channels = is->audio_st->codec->channels;
1976
1977     size = samples_size / sizeof(short);
1978     while (size > 0) {
1979         len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1980         if (len > size)
1981             len = size;
1982         memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1983         samples += len;
1984         is->sample_array_index += len;
1985         if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1986             is->sample_array_index = 0;
1987         size -= len;
1988     }
1989 }
1990
1991 /* return the new audio buffer size (samples can be added or deleted
1992    to get better sync if video or external master clock) */
1993 static int synchronize_audio(VideoState *is, short *samples,
1994                              int samples_size1, double pts)
1995 {
1996     int n, samples_size;
1997     double ref_clock;
1998
1999     n = 2 * is->audio_st->codec->channels;
2000     samples_size = samples_size1;
2001
2002     /* if not master, then we try to remove or add samples to correct the clock */
2003     if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2004          is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2005         double diff, avg_diff;
2006         int wanted_size, min_size, max_size, nb_samples;
2007
2008         ref_clock = get_master_clock(is);
2009         diff = get_audio_clock(is) - ref_clock;
2010
2011         if (diff < AV_NOSYNC_THRESHOLD) {
2012             is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2013             if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2014                 /* not enough measures to have a correct estimate */
2015                 is->audio_diff_avg_count++;
2016             } else {
2017                 /* estimate the A-V difference */
2018                 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2019
2020                 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2021                     wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2022                     nb_samples = samples_size / n;
2023
2024                     min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2025                     max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2026                     if (wanted_size < min_size)
2027                         wanted_size = min_size;
2028                     else if (wanted_size > max_size)
2029                         wanted_size = max_size;
2030
2031                     /* add or remove samples to correction the synchro */
2032                     if (wanted_size < samples_size) {
2033                         /* remove samples */
2034                         samples_size = wanted_size;
2035                     } else if (wanted_size > samples_size) {
2036                         uint8_t *samples_end, *q;
2037                         int nb;
2038
2039                         /* add samples */
2040                         nb = (samples_size - wanted_size);
2041                         samples_end = (uint8_t *)samples + samples_size - n;
2042                         q = samples_end + n;
2043                         while (nb > 0) {
2044                             memcpy(q, samples_end, n);
2045                             q += n;
2046                             nb -= n;
2047                         }
2048                         samples_size = wanted_size;
2049                     }
2050                 }
2051 #if 0
2052                 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2053                        diff, avg_diff, samples_size - samples_size1,
2054                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
2055 #endif
2056             }
2057         } else {
2058             /* too big difference : may be initial PTS errors, so
2059                reset A-V filter */
2060             is->audio_diff_avg_count = 0;
2061             is->audio_diff_cum = 0;
2062         }
2063     }
2064
2065     return samples_size;
2066 }
2067
2068 /* decode one audio frame and returns its uncompressed size */
2069 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2070 {
2071     AVPacket *pkt_temp = &is->audio_pkt_temp;
2072     AVPacket *pkt = &is->audio_pkt;
2073     AVCodecContext *dec= is->audio_st->codec;
2074     int n, len1, data_size;
2075     double pts;
2076
2077     for(;;) {
2078         /* NOTE: the audio packet can contain several frames */
2079         while (pkt_temp->size > 0) {
2080             data_size = sizeof(is->audio_buf1);
2081             len1 = avcodec_decode_audio3(dec,
2082                                         (int16_t *)is->audio_buf1, &data_size,
2083                                         pkt_temp);
2084             if (len1 < 0) {
2085                 /* if error, we skip the frame */
2086                 pkt_temp->size = 0;
2087                 break;
2088             }
2089
2090             pkt_temp->data += len1;
2091             pkt_temp->size -= len1;
2092             if (data_size <= 0)
2093                 continue;
2094
2095             if (dec->sample_fmt != is->audio_src_fmt) {
2096                 if (is->reformat_ctx)
2097                     av_audio_convert_free(is->reformat_ctx);
2098                 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2099                                                          dec->sample_fmt, 1, NULL, 0);
2100                 if (!is->reformat_ctx) {
2101                     fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2102                         av_get_sample_fmt_name(dec->sample_fmt),
2103                         av_get_sample_fmt_name(SAMPLE_FMT_S16));
2104                         break;
2105                 }
2106                 is->audio_src_fmt= dec->sample_fmt;
2107             }
2108
2109             if (is->reformat_ctx) {
2110                 const void *ibuf[6]= {is->audio_buf1};
2111                 void *obuf[6]= {is->audio_buf2};
2112                 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2113                 int ostride[6]= {2};
2114                 int len= data_size/istride[0];
2115                 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2116                     printf("av_audio_convert() failed\n");
2117                     break;
2118                 }
2119                 is->audio_buf= is->audio_buf2;
2120                 /* FIXME: existing code assume that data_size equals framesize*channels*2
2121                           remove this legacy cruft */
2122                 data_size= len*2;
2123             }else{
2124                 is->audio_buf= is->audio_buf1;
2125             }
2126
2127             /* if no pts, then compute it */
2128             pts = is->audio_clock;
2129             *pts_ptr = pts;
2130             n = 2 * dec->channels;
2131             is->audio_clock += (double)data_size /
2132                 (double)(n * dec->sample_rate);
2133 #if defined(DEBUG_SYNC)
2134             {
2135                 static double last_clock;
2136                 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2137                        is->audio_clock - last_clock,
2138                        is->audio_clock, pts);
2139                 last_clock = is->audio_clock;
2140             }
2141 #endif
2142             return data_size;
2143         }
2144
2145         /* free the current packet */
2146         if (pkt->data)
2147             av_free_packet(pkt);
2148
2149         if (is->paused || is->audioq.abort_request) {
2150             return -1;
2151         }
2152
2153         /* read next packet */
2154         if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2155             return -1;
2156         if(pkt->data == flush_pkt.data){
2157             avcodec_flush_buffers(dec);
2158             continue;
2159         }
2160
2161         pkt_temp->data = pkt->data;
2162         pkt_temp->size = pkt->size;
2163
2164         /* if update the audio clock with the pts */
2165         if (pkt->pts != AV_NOPTS_VALUE) {
2166             is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2167         }
2168     }
2169 }
2170
2171 /* get the current audio output buffer size, in samples. With SDL, we
2172    cannot have a precise information */
2173 static int audio_write_get_buf_size(VideoState *is)
2174 {
2175     return is->audio_buf_size - is->audio_buf_index;
2176 }
2177
2178
2179 /* prepare a new audio buffer */
2180 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2181 {
2182     VideoState *is = opaque;
2183     int audio_size, len1;
2184     double pts;
2185
2186     audio_callback_time = av_gettime();
2187
2188     while (len > 0) {
2189         if (is->audio_buf_index >= is->audio_buf_size) {
2190            audio_size = audio_decode_frame(is, &pts);
2191            if (audio_size < 0) {
2192                 /* if error, just output silence */
2193                is->audio_buf = is->audio_buf1;
2194                is->audio_buf_size = 1024;
2195                memset(is->audio_buf, 0, is->audio_buf_size);
2196            } else {
2197                if (is->show_audio)
2198                    update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2199                audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2200                                               pts);
2201                is->audio_buf_size = audio_size;
2202            }
2203            is->audio_buf_index = 0;
2204         }
2205         len1 = is->audio_buf_size - is->audio_buf_index;
2206         if (len1 > len)
2207             len1 = len;
2208         memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2209         len -= len1;
2210         stream += len1;
2211         is->audio_buf_index += len1;
2212     }
2213 }
2214
2215 /* open a given stream. Return 0 if OK */
2216 static int stream_component_open(VideoState *is, int stream_index)
2217 {
2218     AVFormatContext *ic = is->ic;
2219     AVCodecContext *avctx;
2220     AVCodec *codec;
2221     SDL_AudioSpec wanted_spec, spec;
2222
2223     if (stream_index < 0 || stream_index >= ic->nb_streams)
2224         return -1;
2225     avctx = ic->streams[stream_index]->codec;
2226
2227     /* prepare audio output */
2228     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2229         if (avctx->channels > 0) {
2230             avctx->request_channels = FFMIN(2, avctx->channels);
2231         } else {
2232             avctx->request_channels = 2;
2233         }
2234     }
2235
2236     codec = avcodec_find_decoder(avctx->codec_id);
2237     avctx->debug_mv = debug_mv;
2238     avctx->debug = debug;
2239     avctx->workaround_bugs = workaround_bugs;
2240     avctx->lowres = lowres;
2241     if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2242     avctx->idct_algo= idct;
2243     if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2244     avctx->skip_frame= skip_frame;
2245     avctx->skip_idct= skip_idct;
2246     avctx->skip_loop_filter= skip_loop_filter;
2247     avctx->error_recognition= error_recognition;
2248     avctx->error_concealment= error_concealment;
2249     avcodec_thread_init(avctx, thread_count);
2250
2251     set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2252
2253     if (!codec ||
2254         avcodec_open(avctx, codec) < 0)
2255         return -1;
2256
2257     /* prepare audio output */
2258     if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2259         wanted_spec.freq = avctx->sample_rate;
2260         wanted_spec.format = AUDIO_S16SYS;
2261         wanted_spec.channels = avctx->channels;
2262         wanted_spec.silence = 0;
2263         wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2264         wanted_spec.callback = sdl_audio_callback;
2265         wanted_spec.userdata = is;
2266         if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2267             fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2268             return -1;
2269         }
2270         is->audio_hw_buf_size = spec.size;
2271         is->audio_src_fmt= SAMPLE_FMT_S16;
2272     }
2273
2274     ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2275     switch(avctx->codec_type) {
2276     case AVMEDIA_TYPE_AUDIO:
2277         is->audio_stream = stream_index;
2278         is->audio_st = ic->streams[stream_index];
2279         is->audio_buf_size = 0;
2280         is->audio_buf_index = 0;
2281
2282         /* init averaging filter */
2283         is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2284         is->audio_diff_avg_count = 0;
2285         /* since we do not have a precise anough audio fifo fullness,
2286            we correct audio sync only if larger than this threshold */
2287         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2288
2289         memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2290         packet_queue_init(&is->audioq);
2291         SDL_PauseAudio(0);
2292         break;
2293     case AVMEDIA_TYPE_VIDEO:
2294         is->video_stream = stream_index;
2295         is->video_st = ic->streams[stream_index];
2296
2297 //        is->video_current_pts_time = av_gettime();
2298
2299         packet_queue_init(&is->videoq);
2300         is->video_tid = SDL_CreateThread(video_thread, is);
2301         break;
2302     case AVMEDIA_TYPE_SUBTITLE:
2303         is->subtitle_stream = stream_index;
2304         is->subtitle_st = ic->streams[stream_index];
2305         packet_queue_init(&is->subtitleq);
2306
2307         is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2308         break;
2309     default:
2310         break;
2311     }
2312     return 0;
2313 }
2314
2315 static void stream_component_close(VideoState *is, int stream_index)
2316 {
2317     AVFormatContext *ic = is->ic;
2318     AVCodecContext *avctx;
2319
2320     if (stream_index < 0 || stream_index >= ic->nb_streams)
2321         return;
2322     avctx = ic->streams[stream_index]->codec;
2323
2324     switch(avctx->codec_type) {
2325     case AVMEDIA_TYPE_AUDIO:
2326         packet_queue_abort(&is->audioq);
2327
2328         SDL_CloseAudio();
2329
2330         packet_queue_end(&is->audioq);
2331         if (is->reformat_ctx)
2332             av_audio_convert_free(is->reformat_ctx);
2333         is->reformat_ctx = NULL;
2334         break;
2335     case AVMEDIA_TYPE_VIDEO:
2336         packet_queue_abort(&is->videoq);
2337
2338         /* note: we also signal this mutex to make sure we deblock the
2339            video thread in all cases */
2340         SDL_LockMutex(is->pictq_mutex);
2341         SDL_CondSignal(is->pictq_cond);
2342         SDL_UnlockMutex(is->pictq_mutex);
2343
2344         SDL_WaitThread(is->video_tid, NULL);
2345
2346         packet_queue_end(&is->videoq);
2347         break;
2348     case AVMEDIA_TYPE_SUBTITLE:
2349         packet_queue_abort(&is->subtitleq);
2350
2351         /* note: we also signal this mutex to make sure we deblock the
2352            video thread in all cases */
2353         SDL_LockMutex(is->subpq_mutex);
2354         is->subtitle_stream_changed = 1;
2355
2356         SDL_CondSignal(is->subpq_cond);
2357         SDL_UnlockMutex(is->subpq_mutex);
2358
2359         SDL_WaitThread(is->subtitle_tid, NULL);
2360
2361         packet_queue_end(&is->subtitleq);
2362         break;
2363     default:
2364         break;
2365     }
2366
2367     ic->streams[stream_index]->discard = AVDISCARD_ALL;
2368     avcodec_close(avctx);
2369     switch(avctx->codec_type) {
2370     case AVMEDIA_TYPE_AUDIO:
2371         is->audio_st = NULL;
2372         is->audio_stream = -1;
2373         break;
2374     case AVMEDIA_TYPE_VIDEO:
2375         is->video_st = NULL;
2376         is->video_stream = -1;
2377         break;
2378     case AVMEDIA_TYPE_SUBTITLE:
2379         is->subtitle_st = NULL;
2380         is->subtitle_stream = -1;
2381         break;
2382     default:
2383         break;
2384     }
2385 }
2386
2387 /* since we have only one decoding thread, we can use a global
2388    variable instead of a thread local variable */
2389 static VideoState *global_video_state;
2390
2391 static int decode_interrupt_cb(void)
2392 {
2393     return (global_video_state && global_video_state->abort_request);
2394 }
2395
2396 /* this thread gets the stream from the disk or the network */
2397 static int decode_thread(void *arg)
2398 {
2399     VideoState *is = arg;
2400     AVFormatContext *ic;
2401     int err, i, ret;
2402     int st_index[AVMEDIA_TYPE_NB];
2403     int st_count[AVMEDIA_TYPE_NB]={0};
2404     int st_best_packet_count[AVMEDIA_TYPE_NB];
2405     AVPacket pkt1, *pkt = &pkt1;
2406     AVFormatParameters params, *ap = &params;
2407     int eof=0;
2408     int pkt_in_play_range = 0;
2409
2410     ic = avformat_alloc_context();
2411
2412     memset(st_index, -1, sizeof(st_index));
2413     memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2414     is->video_stream = -1;
2415     is->audio_stream = -1;
2416     is->subtitle_stream = -1;
2417
2418     global_video_state = is;
2419     url_set_interrupt_cb(decode_interrupt_cb);
2420
2421     memset(ap, 0, sizeof(*ap));
2422
2423     ap->prealloced_context = 1;
2424     ap->width = frame_width;
2425     ap->height= frame_height;
2426     ap->time_base= (AVRational){1, 25};
2427     ap->pix_fmt = frame_pix_fmt;
2428
2429     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2430
2431     err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2432     if (err < 0) {
2433         print_error(is->filename, err);
2434         ret = -1;
2435         goto fail;
2436     }
2437     is->ic = ic;
2438
2439     if(genpts)
2440         ic->flags |= AVFMT_FLAG_GENPTS;
2441
2442     err = av_find_stream_info(ic);
2443     if (err < 0) {
2444         fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2445         ret = -1;
2446         goto fail;
2447     }
2448     if(ic->pb)
2449         ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2450
2451     if(seek_by_bytes<0)
2452         seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2453
2454     /* if seeking requested, we execute it */
2455     if (start_time != AV_NOPTS_VALUE) {
2456         int64_t timestamp;
2457
2458         timestamp = start_time;
2459         /* add the stream start time */
2460         if (ic->start_time != AV_NOPTS_VALUE)
2461             timestamp += ic->start_time;
2462         ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2463         if (ret < 0) {
2464             fprintf(stderr, "%s: could not seek to position %0.3f\n",
2465                     is->filename, (double)timestamp / AV_TIME_BASE);
2466         }
2467     }
2468
2469     for(i = 0; i < ic->nb_streams; i++) {
2470         AVStream *st= ic->streams[i];
2471         AVCodecContext *avctx = st->codec;
2472         ic->streams[i]->discard = AVDISCARD_ALL;
2473         if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2474             continue;
2475         if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2476             continue;
2477
2478         if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2479             continue;
2480         st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2481
2482         switch(avctx->codec_type) {
2483         case AVMEDIA_TYPE_AUDIO:
2484             if (!audio_disable)
2485                 st_index[AVMEDIA_TYPE_AUDIO] = i;
2486             break;
2487         case AVMEDIA_TYPE_VIDEO:
2488         case AVMEDIA_TYPE_SUBTITLE:
2489             if (!video_disable)
2490                 st_index[avctx->codec_type] = i;
2491             break;
2492         default:
2493             break;
2494         }
2495     }
2496     if (show_status) {
2497         dump_format(ic, 0, is->filename, 0);
2498     }
2499
2500     /* open the streams */
2501     if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2502         stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2503     }
2504
2505     ret=-1;
2506     if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2507         ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2508     }
2509     is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2510     if(ret<0) {
2511         if (!display_disable)
2512             is->show_audio = 2;
2513     }
2514
2515     if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2516         stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2517     }
2518
2519     if (is->video_stream < 0 && is->audio_stream < 0) {
2520         fprintf(stderr, "%s: could not open codecs\n", is->filename);
2521         ret = -1;
2522         goto fail;
2523     }
2524
2525     for(;;) {
2526         if (is->abort_request)
2527             break;
2528         if (is->paused != is->last_paused) {
2529             is->last_paused = is->paused;
2530             if (is->paused)
2531                 is->read_pause_return= av_read_pause(ic);
2532             else
2533                 av_read_play(ic);
2534         }
2535 #if CONFIG_RTSP_DEMUXER
2536         if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2537             /* wait 10 ms to avoid trying to get another packet */
2538             /* XXX: horrible */
2539             SDL_Delay(10);
2540             continue;
2541         }
2542 #endif
2543         if (is->seek_req) {
2544             int64_t seek_target= is->seek_pos;
2545             int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2546             int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2547 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2548 //      of the seek_pos/seek_rel variables
2549
2550             ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2551             if (ret < 0) {
2552                 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2553             }else{
2554                 if (is->audio_stream >= 0) {
2555                     packet_queue_flush(&is->audioq);
2556                     packet_queue_put(&is->audioq, &flush_pkt);
2557                 }
2558                 if (is->subtitle_stream >= 0) {
2559                     packet_queue_flush(&is->subtitleq);
2560                     packet_queue_put(&is->subtitleq, &flush_pkt);
2561                 }
2562                 if (is->video_stream >= 0) {
2563                     packet_queue_flush(&is->videoq);
2564                     packet_queue_put(&is->videoq, &flush_pkt);
2565                 }
2566             }
2567             is->seek_req = 0;
2568             eof= 0;
2569         }
2570
2571         /* if the queue are full, no need to read more */
2572         if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2573             || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2574                 && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2575                 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2576             /* wait 10 ms */
2577             SDL_Delay(10);
2578             continue;
2579         }
2580         if(eof) {
2581             if(is->video_stream >= 0){
2582                 av_init_packet(pkt);
2583                 pkt->data=NULL;
2584                 pkt->size=0;
2585                 pkt->stream_index= is->video_stream;
2586                 packet_queue_put(&is->videoq, pkt);
2587             }
2588             SDL_Delay(10);
2589             if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2590                 if(loop!=1 && (!loop || --loop)){
2591                     stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2592                 }else if(autoexit){
2593                     ret=AVERROR_EOF;
2594                     goto fail;
2595                 }
2596             }
2597             continue;
2598         }
2599         ret = av_read_frame(ic, pkt);
2600         if (ret < 0) {
2601             if (ret == AVERROR_EOF || url_feof(ic->pb))
2602                 eof=1;
2603             if (url_ferror(ic->pb))
2604                 break;
2605             SDL_Delay(100); /* wait for user event */
2606             continue;
2607         }
2608         /* check if packet is in play range specified by user, then queue, otherwise discard */
2609         pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2610                 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2611                 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2612                 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2613                 <= ((double)duration/1000000);
2614         if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2615             packet_queue_put(&is->audioq, pkt);
2616         } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2617             packet_queue_put(&is->videoq, pkt);
2618         } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2619             packet_queue_put(&is->subtitleq, pkt);
2620         } else {
2621             av_free_packet(pkt);
2622         }
2623     }
2624     /* wait until the end */
2625     while (!is->abort_request) {
2626         SDL_Delay(100);
2627     }
2628
2629     ret = 0;
2630  fail:
2631     /* disable interrupting */
2632     global_video_state = NULL;
2633
2634     /* close each stream */
2635     if (is->audio_stream >= 0)
2636         stream_component_close(is, is->audio_stream);
2637     if (is->video_stream >= 0)
2638         stream_component_close(is, is->video_stream);
2639     if (is->subtitle_stream >= 0)
2640         stream_component_close(is, is->subtitle_stream);
2641     if (is->ic) {
2642         av_close_input_file(is->ic);
2643         is->ic = NULL; /* safety */
2644     }
2645     url_set_interrupt_cb(NULL);
2646
2647     if (ret != 0) {
2648         SDL_Event event;
2649
2650         event.type = FF_QUIT_EVENT;
2651         event.user.data1 = is;
2652         SDL_PushEvent(&event);
2653     }
2654     return 0;
2655 }
2656
2657 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2658 {
2659     VideoState *is;
2660
2661     is = av_mallocz(sizeof(VideoState));
2662     if (!is)
2663         return NULL;
2664     av_strlcpy(is->filename, filename, sizeof(is->filename));
2665     is->iformat = iformat;
2666     is->ytop = 0;
2667     is->xleft = 0;
2668
2669     /* start video display */
2670     is->pictq_mutex = SDL_CreateMutex();
2671     is->pictq_cond = SDL_CreateCond();
2672
2673     is->subpq_mutex = SDL_CreateMutex();
2674     is->subpq_cond = SDL_CreateCond();
2675
2676     is->av_sync_type = av_sync_type;
2677     is->parse_tid = SDL_CreateThread(decode_thread, is);
2678     if (!is->parse_tid) {
2679         av_free(is);
2680         return NULL;
2681     }
2682     return is;
2683 }
2684
2685 static void stream_cycle_channel(VideoState *is, int codec_type)
2686 {
2687     AVFormatContext *ic = is->ic;
2688     int start_index, stream_index;
2689     AVStream *st;
2690
2691     if (codec_type == AVMEDIA_TYPE_VIDEO)
2692         start_index = is->video_stream;
2693     else if (codec_type == AVMEDIA_TYPE_AUDIO)
2694         start_index = is->audio_stream;
2695     else
2696         start_index = is->subtitle_stream;
2697     if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2698         return;
2699     stream_index = start_index;
2700     for(;;) {
2701         if (++stream_index >= is->ic->nb_streams)
2702         {
2703             if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2704             {
2705                 stream_index = -1;
2706                 goto the_end;
2707             } else
2708                 stream_index = 0;
2709         }
2710         if (stream_index == start_index)
2711             return;
2712         st = ic->streams[stream_index];
2713         if (st->codec->codec_type == codec_type) {
2714             /* check that parameters are OK */
2715             switch(codec_type) {
2716             case AVMEDIA_TYPE_AUDIO:
2717                 if (st->codec->sample_rate != 0 &&
2718                     st->codec->channels != 0)
2719                     goto the_end;
2720                 break;
2721             case AVMEDIA_TYPE_VIDEO:
2722             case AVMEDIA_TYPE_SUBTITLE:
2723                 goto the_end;
2724             default:
2725                 break;
2726             }
2727         }
2728     }
2729  the_end:
2730     stream_component_close(is, start_index);
2731     stream_component_open(is, stream_index);
2732 }
2733
2734
2735 static void toggle_full_screen(void)
2736 {
2737     is_full_screen = !is_full_screen;
2738     if (!fs_screen_width) {
2739         /* use default SDL method */
2740 //        SDL_WM_ToggleFullScreen(screen);
2741     }
2742     video_open(cur_stream);
2743 }
2744
2745 static void toggle_pause(void)
2746 {
2747     if (cur_stream)
2748         stream_pause(cur_stream);
2749     step = 0;
2750 }
2751
2752 static void step_to_next_frame(void)
2753 {
2754     if (cur_stream) {
2755         /* if the stream is paused unpause it, then step */
2756         if (cur_stream->paused)
2757             stream_pause(cur_stream);
2758     }
2759     step = 1;
2760 }
2761
2762 static void toggle_audio_display(void)
2763 {
2764     if (cur_stream) {
2765         int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2766         cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2767         fill_rectangle(screen,
2768                     cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2769                     bgcolor);
2770         SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2771     }
2772 }
2773
2774 /* handle an event sent by the GUI */
2775 static void event_loop(void)
2776 {
2777     SDL_Event event;
2778     double incr, pos, frac;
2779
2780     for(;;) {
2781         double x;
2782         SDL_WaitEvent(&event);
2783         switch(event.type) {
2784         case SDL_KEYDOWN:
2785             if (exit_on_keydown) {
2786                 do_exit();
2787                 break;
2788             }
2789             switch(event.key.keysym.sym) {
2790             case SDLK_ESCAPE:
2791             case SDLK_q:
2792                 do_exit();
2793                 break;
2794             case SDLK_f:
2795                 toggle_full_screen();
2796                 break;
2797             case SDLK_p:
2798             case SDLK_SPACE:
2799                 toggle_pause();
2800                 break;
2801             case SDLK_s: //S: Step to next frame
2802                 step_to_next_frame();
2803                 break;
2804             case SDLK_a:
2805                 if (cur_stream)
2806                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2807                 break;
2808             case SDLK_v:
2809                 if (cur_stream)
2810                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2811                 break;
2812             case SDLK_t:
2813                 if (cur_stream)
2814                     stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2815                 break;
2816             case SDLK_w:
2817                 toggle_audio_display();
2818                 break;
2819             case SDLK_LEFT:
2820                 incr = -10.0;
2821                 goto do_seek;
2822             case SDLK_RIGHT:
2823                 incr = 10.0;
2824                 goto do_seek;
2825             case SDLK_UP:
2826                 incr = 60.0;
2827                 goto do_seek;
2828             case SDLK_DOWN:
2829                 incr = -60.0;
2830             do_seek:
2831                 if (cur_stream) {
2832                     if (seek_by_bytes) {
2833                         if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2834                             pos= cur_stream->video_current_pos;
2835                         }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2836                             pos= cur_stream->audio_pkt.pos;
2837                         }else
2838                             pos = url_ftell(cur_stream->ic->pb);
2839                         if (cur_stream->ic->bit_rate)
2840                             incr *= cur_stream->ic->bit_rate / 8.0;
2841                         else
2842                             incr *= 180000.0;
2843                         pos += incr;
2844                         stream_seek(cur_stream, pos, incr, 1);
2845                     } else {
2846                         pos = get_master_clock(cur_stream);
2847                         pos += incr;
2848                         stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2849                     }
2850                 }
2851                 break;
2852             default:
2853                 break;
2854             }
2855             break;
2856         case SDL_MOUSEBUTTONDOWN:
2857             if (exit_on_mousedown) {
2858                 do_exit();
2859                 break;
2860             }
2861         case SDL_MOUSEMOTION:
2862             if(event.type ==SDL_MOUSEBUTTONDOWN){
2863                 x= event.button.x;
2864             }else{
2865                 if(event.motion.state != SDL_PRESSED)
2866                     break;
2867                 x= event.motion.x;
2868             }
2869             if (cur_stream) {
2870                 if(seek_by_bytes || cur_stream->ic->duration<=0){
2871                     uint64_t size=  url_fsize(cur_stream->ic->pb);
2872                     stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2873                 }else{
2874                     int64_t ts;
2875                     int ns, hh, mm, ss;
2876                     int tns, thh, tmm, tss;
2877                     tns = cur_stream->ic->duration/1000000LL;
2878                     thh = tns/3600;
2879                     tmm = (tns%3600)/60;
2880                     tss = (tns%60);
2881                     frac = x/cur_stream->width;
2882                     ns = frac*tns;
2883                     hh = ns/3600;
2884                     mm = (ns%3600)/60;
2885                     ss = (ns%60);
2886                     fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
2887                             hh, mm, ss, thh, tmm, tss);
2888                     ts = frac*cur_stream->ic->duration;
2889                     if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2890                         ts += cur_stream->ic->start_time;
2891                     stream_seek(cur_stream, ts, 0, 0);
2892                 }
2893             }
2894             break;
2895         case SDL_VIDEORESIZE:
2896             if (cur_stream) {
2897                 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2898                                           SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2899                 screen_width = cur_stream->width = event.resize.w;
2900                 screen_height= cur_stream->height= event.resize.h;
2901             }
2902             break;
2903         case SDL_QUIT:
2904         case FF_QUIT_EVENT:
2905             do_exit();
2906             break;
2907         case FF_ALLOC_EVENT:
2908             video_open(event.user.data1);
2909             alloc_picture(event.user.data1);
2910             break;
2911         case FF_REFRESH_EVENT:
2912             video_refresh_timer(event.user.data1);
2913             cur_stream->refresh=0;
2914             break;
2915         default:
2916             break;
2917         }
2918     }
2919 }
2920
2921 static void opt_frame_size(const char *arg)
2922 {
2923     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2924         fprintf(stderr, "Incorrect frame size\n");
2925         exit(1);
2926     }
2927     if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2928         fprintf(stderr, "Frame size must be a multiple of 2\n");
2929         exit(1);
2930     }
2931 }
2932
2933 static int opt_width(const char *opt, const char *arg)
2934 {
2935     screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2936     return 0;
2937 }
2938
2939 static int opt_height(const char *opt, const char *arg)
2940 {
2941     screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2942     return 0;
2943 }
2944
2945 static void opt_format(const char *arg)
2946 {
2947     file_iformat = av_find_input_format(arg);
2948     if (!file_iformat) {
2949         fprintf(stderr, "Unknown input format: %s\n", arg);
2950         exit(1);
2951     }
2952 }
2953
2954 static void opt_frame_pix_fmt(const char *arg)
2955 {
2956     frame_pix_fmt = av_get_pix_fmt(arg);
2957 }
2958
2959 static int opt_sync(const char *opt, const char *arg)
2960 {
2961     if (!strcmp(arg, "audio"))
2962         av_sync_type = AV_SYNC_AUDIO_MASTER;
2963     else if (!strcmp(arg, "video"))
2964         av_sync_type = AV_SYNC_VIDEO_MASTER;
2965     else if (!strcmp(arg, "ext"))
2966         av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2967     else {
2968         fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2969         exit(1);
2970     }
2971     return 0;
2972 }
2973
2974 static int opt_seek(const char *opt, const char *arg)
2975 {
2976     start_time = parse_time_or_die(opt, arg, 1);
2977     return 0;
2978 }
2979
2980 static int opt_duration(const char *opt, const char *arg)
2981 {
2982     duration = parse_time_or_die(opt, arg, 1);
2983     return 0;
2984 }
2985
2986 static int opt_debug(const char *opt, const char *arg)
2987 {
2988     av_log_set_level(99);
2989     debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2990     return 0;
2991 }
2992
2993 static int opt_vismv(const char *opt, const char *arg)
2994 {
2995     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2996     return 0;
2997 }
2998
2999 static int opt_thread_count(const char *opt, const char *arg)
3000 {
3001     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3002 #if !HAVE_THREADS
3003     fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3004 #endif
3005     return 0;
3006 }
3007
3008 static const OptionDef options[] = {
3009 #include "cmdutils_common_opts.h"
3010     { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3011     { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3012     { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3013     { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3014     { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3015     { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3016     { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3017     { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3018     { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3019     { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3020     { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
3021     { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3022     { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3023     { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3024     { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3025     { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3026     { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3027     { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3028     { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3029     { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3030     { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3031     { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3032     { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3033     { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3034     { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3035     { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3036     { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
3037     { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
3038     { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
3039     { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3040     { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3041     { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3042     { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3043     { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3044     { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3045     { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3046     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3047 #if CONFIG_AVFILTER
3048     { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3049 #endif
3050     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3051     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3052     { NULL, },
3053 };
3054
3055 static void show_usage(void)
3056 {
3057     printf("Simple media player\n");
3058     printf("usage: ffplay [options] input_file\n");
3059     printf("\n");
3060 }
3061
3062 static void show_help(void)
3063 {
3064     av_log_set_callback(log_callback_help);
3065     show_usage();
3066     show_help_options(options, "Main options:\n",
3067                       OPT_EXPERT, 0);
3068     show_help_options(options, "\nAdvanced options:\n",
3069                       OPT_EXPERT, OPT_EXPERT);
3070     printf("\n");
3071     av_opt_show2(avcodec_opts[0], NULL,
3072                  AV_OPT_FLAG_DECODING_PARAM, 0);
3073     printf("\n");
3074     av_opt_show2(avformat_opts, NULL,
3075                  AV_OPT_FLAG_DECODING_PARAM, 0);
3076 #if !CONFIG_AVFILTER
3077     printf("\n");
3078     av_opt_show2(sws_opts, NULL,
3079                  AV_OPT_FLAG_ENCODING_PARAM, 0);
3080 #endif
3081     printf("\nWhile playing:\n"
3082            "q, ESC              quit\n"
3083            "f                   toggle full screen\n"
3084            "p, SPC              pause\n"
3085            "a                   cycle audio channel\n"
3086            "v                   cycle video channel\n"
3087            "t                   cycle subtitle channel\n"
3088            "w                   show audio waves\n"
3089            "s                   activate frame-step mode\n"
3090            "left/right          seek backward/forward 10 seconds\n"
3091            "down/up             seek backward/forward 1 minute\n"
3092            "mouse click         seek to percentage in file corresponding to fraction of width\n"
3093            );
3094 }
3095
3096 static void opt_input_file(const char *filename)
3097 {
3098     if (input_filename) {
3099         fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3100                 filename, input_filename);
3101         exit(1);
3102     }
3103     if (!strcmp(filename, "-"))
3104         filename = "pipe:";
3105     input_filename = filename;
3106 }
3107
3108 /* Called from the main */
3109 int main(int argc, char **argv)
3110 {
3111     int flags;
3112
3113     av_log_set_flags(AV_LOG_SKIP_REPEATED);
3114
3115     /* register all codecs, demux and protocols */
3116     avcodec_register_all();
3117 #if CONFIG_AVDEVICE
3118     avdevice_register_all();
3119 #endif
3120 #if CONFIG_AVFILTER
3121     avfilter_register_all();
3122 #endif
3123     av_register_all();
3124
3125     init_opts();
3126
3127     show_banner();
3128
3129     parse_options(argc, argv, options, opt_input_file);
3130
3131     if (!input_filename) {
3132         show_usage();
3133         fprintf(stderr, "An input file must be specified\n");
3134         fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3135         exit(1);
3136     }
3137
3138     if (display_disable) {
3139         video_disable = 1;
3140     }
3141     flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3142 #if !defined(__MINGW32__) && !defined(__APPLE__)
3143     flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3144 #endif
3145     if (SDL_Init (flags)) {
3146         fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3147         exit(1);
3148     }
3149
3150     if (!display_disable) {
3151 #if HAVE_SDL_VIDEO_SIZE
3152         const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3153         fs_screen_width = vi->current_w;
3154         fs_screen_height = vi->current_h;
3155 #endif
3156     }
3157
3158     SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3159     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3160     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3161
3162     av_init_packet(&flush_pkt);
3163     flush_pkt.data= "FLUSH";
3164
3165     cur_stream = stream_open(input_filename, file_iformat);
3166
3167     event_loop();
3168
3169     /* never returns */
3170
3171     return 0;
3172 }