/* $Id: encx264.c,v 1.21 2005/11/04 13:09:41 titer Exp $
This file is part of the HandBrake source code.
- Homepage: <http://handbrake.m0k.org/>.
+ Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include <stdarg.h>
* to x264_encoder_encode. Since frames are uniquely identified by their
* timestamp, we use some bits of the timestamp as an index. The LSB is
* chosen so that two successive frames will have different values in the
- * bits over any plausible range of frame rates. (Starting with bit 9 allows
- * any frame rate slower than 175fps.) The MSB determines the size of the array.
+ * bits over any plausible range of frame rates. (Starting with bit 8 allows
+ * any frame rate slower than 352fps.) The MSB determines the size of the array.
* It is chosen so that two frames can't use the same slot during the
* encoder's max frame delay (set by the standard as 16 frames) and so
* that, up to some minimum frame rate, frames are guaranteed to map to
- * different slots. (An MSB of 16 which is 2^(16-9+1) = 256 slots guarantees
- * no collisions down to a rate of 1.4 fps).
+ * different slots. (An MSB of 17 which is 2^(17-8+1) = 1024 slots guarantees
+ * no collisions down to a rate of .7 fps).
*/
-#define FRAME_INFO_MAX2 (9) // 2^9 = 512; 90000/512 = 175 frames/sec
-#define FRAME_INFO_MIN2 (16) // 2^16 = 65536; 90000/65536 = 1.4 frames/sec
+#define FRAME_INFO_MAX2 (8) // 2^8 = 256; 90000/256 = 352 frames/sec
+#define FRAME_INFO_MIN2 (17) // 2^17 = 128K; 90000/131072 = 1.4 frames/sec
#define FRAME_INFO_SIZE (1 << (FRAME_INFO_MIN2 - FRAME_INFO_MAX2 + 1))
#define FRAME_INFO_MASK (FRAME_INFO_SIZE - 1)
hb_job_t * job;
x264_t * x264;
x264_picture_t pic_in;
- uint8_t *x264_allocated_pic;
+ uint8_t * grey_data;
- int64_t dts_next; // DTS start time value for next output frame
+ uint32_t frames_in;
+ uint32_t frames_out;
+ uint32_t frames_split; // number of frames we had to split
+ int chap_mark; // saved chap mark when we're propagating it
int64_t last_stop; // Debugging - stop time of previous input frame
- int64_t init_delay;
int64_t next_chap;
struct {
hb_get_tempory_filename( job->h, pv->filename, "x264.log" );
x264_param_default( ¶m );
-
+
+ /* Enable metrics */
+ param.analyse.b_psnr = 1;
+ param.analyse.b_ssim = 1;
+
+ /* QuickTime has trouble with very low QPs (resulting in visual artifacts).
+ * Known to affect QuickTime 7, QuickTime X and iTunes.
+ * Testing shows that a qpmin of 3 works.
+ */
+ param.rc.i_qp_min = 3;
+
param.i_threads = ( hb_get_cpu_count() * 3 / 2 );
param.i_width = job->width;
param.i_height = job->height;
param.i_fps_num = job->vrate;
param.i_fps_den = job->vrate_base;
-
- if (job->vrate_base != 1080000)
+ if ( job->cfr == 1 )
{
- /* If the fps isn't 25, adjust the key intervals. Add 1 because
- we want 24, not 23 with a truncated remainder. */
- param.i_keyint_min = (job->vrate / job->vrate_base) + 1;
- param.i_keyint_max = (10 * job->vrate / job->vrate_base) + 1;
- hb_log("encx264: keyint-min: %i, keyint-max: %i", param.i_keyint_min, param.i_keyint_max);
+ param.i_timebase_num = 0;
+ param.i_timebase_den = 0;
+ param.b_vfr_input = 0;
}
-
- param.i_log_level = X264_LOG_INFO;
- if( job->h264_level )
+ else
{
- param.b_cabac = 0;
- param.i_level_idc = job->h264_level;
- hb_log( "encx264: encoding at level %i",
- param.i_level_idc );
+ param.i_timebase_num = 1;
+ param.i_timebase_den = 90000;
}
- /* Slightly faster with minimal quality lost */
- param.analyse.i_subpel_refine = 4;
+ /* Disable annexb. Inserts size into nal header instead of start code */
+ param.b_annexb = 0;
+ /* Set min:max key intervals ratio to 1:10 of fps.
+ * This section is skipped if fps=25 (default).
+ */
+ if (job->vrate_base != 1080000)
+ {
+ if (job->pass == 2 && !job->cfr )
+ {
+ /* Even though the framerate might be different due to VFR,
+ we still want the same keyframe intervals as the 1st pass,
+ so the 1st pass stats won't conflict on frame decisions. */
+ hb_interjob_t * interjob = hb_interjob_get( job->h );
+ param.i_keyint_max = 10 * (int)( (double)interjob->vrate / (double)interjob->vrate_base + 0.5 );
+ }
+ else
+ {
+ /* adjust +0.5 for when fps has remainder to bump
+ { 23.976, 29.976, 59.94 } to { 24, 30, 60 } */
+ param.i_keyint_max = 10 * (int)( (double)job->vrate / (double)job->vrate_base + 0.5 );
+ }
+ }
+
+ param.i_log_level = X264_LOG_INFO;
+
/*
This section passes the string x264opts to libx264 for parsing into
parameter names and values.
value++;
}
- /*
- When B-frames are enabled, the max frame count increments
- by 1 (regardless of the number of B-frames). If you don't
- change the duration of the video track when you mux, libmp4
- barfs. So, check if the x264opts are using B-frames, and
- when they are, set the boolean job->areBframes as true.
- */
-
- if( !( strcmp( name, "bframes" ) ) )
- {
- if( atoi( value ) > 0 )
- {
- job->areBframes = 1;
- }
- }
-
- /* Note b-pyramid here, so the initial delay can be doubled */
- if( !( strcmp( name, "b-pyramid" ) ) )
- {
- if( value != NULL )
- {
- if( atoi( value ) > 0 )
- {
- job->areBframes = 2;
- }
- }
- else
- {
- job->areBframes = 2;
- }
- }
-
/* Here's where the strings are passed to libx264 for parsing. */
ret = x264_param_parse( ¶m, name, value );
}
free(x264opts_start);
}
+
+ /* B-frames are on by default.*/
+ job->areBframes = 1;
+
+ if( param.i_bframe && param.i_bframe_pyramid )
+ {
+ /* Note b-pyramid here, so the initial delay can be doubled */
+ job->areBframes = 2;
+ }
+ else if( !param.i_bframe )
+ {
+ /*
+ When B-frames are enabled, the max frame count increments
+ by 1 (regardless of the number of B-frames). If you don't
+ change the duration of the video track when you mux, libmp4
+ barfs. So, check if the x264opts aren't using B-frames, and
+ when they aren't, set the boolean job->areBframes as false.
+ */
+ job->areBframes = 0;
+ }
+
+ if( param.i_keyint_min != X264_KEYINT_MIN_AUTO || param.i_keyint_max != 250 )
+ {
+ int min_auto;
+
+ if ( param.i_fps_num / param.i_fps_den < param.i_keyint_max / 10 )
+ min_auto = param.i_fps_num / param.i_fps_den;
+ else
+ min_auto = param.i_keyint_max / 10;
+
+ char min[40], max[40];
+ param.i_keyint_min == X264_KEYINT_MIN_AUTO ?
+ snprintf( min, 40, "auto (%d)", min_auto ) :
+ snprintf( min, 40, "%d", param.i_keyint_min );
+ param.i_keyint_max == X264_KEYINT_MAX_INFINITE ?
+ snprintf( max, 40, "infinite" ) :
+ snprintf( max, 40, "%d", param.i_keyint_max );
- if( job->pixel_ratio )
+ hb_log( "encx264: min-keyint: %s, keyint: %s", min, max );
+ }
+
+ /* set up the VUI color model & gamma to match what the COLR atom
+ * set in muxmp4.c says. See libhb/muxmp4.c for notes. */
+ if( job->color_matrix == 1 )
{
- param.vui.i_sar_width = job->pixel_aspect_width;
- param.vui.i_sar_height = job->pixel_aspect_height;
+ // ITU BT.601 DVD or SD TV content
+ param.vui.i_colorprim = 6;
+ param.vui.i_transfer = 1;
+ param.vui.i_colmatrix = 6;
+ }
+ else if( job->color_matrix == 2 )
+ {
+ // ITU BT.709 HD content
+ param.vui.i_colorprim = 1;
+ param.vui.i_transfer = 1;
+ param.vui.i_colmatrix = 1;
+ }
+ else if ( job->title->width >= 1280 || job->title->height >= 720 )
+ {
+ // we guess that 720p or above is ITU BT.709 HD content
+ param.vui.i_colorprim = 1;
+ param.vui.i_transfer = 1;
+ param.vui.i_colmatrix = 1;
+ }
+ else
+ {
+ // ITU BT.601 DVD or SD TV content
+ param.vui.i_colorprim = 6;
+ param.vui.i_transfer = 1;
+ param.vui.i_colmatrix = 6;
+ }
+
+ if( job->anamorphic.mode )
+ {
+ param.vui.i_sar_width = job->anamorphic.par_width;
+ param.vui.i_sar_height = job->anamorphic.par_height;
hb_log( "encx264: encoding with stored aspect %d/%d",
param.vui.i_sar_width, param.vui.i_sar_height );
}
- if( job->vquality >= 0.0 && job->vquality <= 1.0 )
+ if( job->vquality > 0.0 && job->vquality < 1.0 )
{
- switch( job->crf )
- {
- case 1:
- /*Constant RF*/
- param.rc.i_rc_method = X264_RC_CRF;
- param.rc.f_rf_constant = 51 - job->vquality * 51;
- hb_log( "encx264: Encoding at constant RF %f",
- param.rc.f_rf_constant );
- break;
-
- case 0:
- /*Constant QP*/
- param.rc.i_rc_method = X264_RC_CQP;
- param.rc.i_qp_constant = 51 - job->vquality * 51;
- hb_log( "encx264: encoding at constant QP %d",
- param.rc.i_qp_constant );
- break;
- }
+ /*Constant RF*/
+ param.rc.i_rc_method = X264_RC_CRF;
+ param.rc.f_rf_constant = 51 - job->vquality * 51;
+ hb_log( "encx264: Encoding at constant RF %f", param.rc.f_rf_constant );
+ }
+ else if( job->vquality == 0 || job->vquality >= 1.0 )
+ {
+ /* Use the vquality as a raw RF or QP
+ instead of treating it like a percentage. */
+ /*Constant RF*/
+ param.rc.i_rc_method = X264_RC_CRF;
+ param.rc.f_rf_constant = job->vquality;
+ hb_log( "encx264: Encoding at constant RF %f", param.rc.f_rf_constant );
}
else
{
}
}
- hb_log( "encx264: opening libx264 (pass %d)", job->pass );
+ hb_deep_log( 2, "encx264: opening libx264 (pass %d)", job->pass );
pv->x264 = x264_encoder_open( ¶m );
x264_encoder_headers( pv->x264, &nal, &nal_count );
/* Sequence Parameter Set */
- w->config->h264.sps_length = 1 + nal[1].i_payload;
- w->config->h264.sps[0] = 0x67;
- memcpy( &w->config->h264.sps[1], nal[1].p_payload, nal[1].i_payload );
+ memcpy(w->config->h264.sps, nal[0].p_payload + 4, nal[0].i_payload - 4);
+ w->config->h264.sps_length = nal[0].i_payload - 4;
/* Picture Parameter Set */
- w->config->h264.pps_length = 1 + nal[2].i_payload;
- w->config->h264.pps[0] = 0x68;
- memcpy( &w->config->h264.pps[1], nal[2].p_payload, nal[2].i_payload );
-
- x264_picture_alloc( &pv->pic_in, X264_CSP_I420,
- job->width, job->height );
+ memcpy(w->config->h264.pps, nal[1].p_payload + 4, nal[1].i_payload - 4);
+ w->config->h264.pps_length = nal[1].i_payload - 4;
- pv->x264_allocated_pic = pv->pic_in.img.plane[0];
+ x264_picture_init( &pv->pic_in );
- pv->dts_next = -1;
- pv->next_chap = 0;
+ pv->pic_in.img.i_csp = X264_CSP_I420;
+ pv->pic_in.img.i_plane = 3;
+ pv->pic_in.img.i_stride[0] = job->width;
+ pv->pic_in.img.i_stride[2] = pv->pic_in.img.i_stride[1] = ( ( job->width + 1 ) >> 1 );
- if (job->areBframes)
+ if( job->grayscale )
{
- /* Basic initDelay value is the clockrate divided by the FPS
- -- the length of one frame in clockticks. */
- pv->init_delay = (float)90000 / (float)((float)job->vrate / (float)job->vrate_base);
-
- /* 23.976-length frames are 3753.75 ticks long. That means 25%
- will come out as 3753, 75% will be 3754. The delay has to be
- the longest possible frame duration, 3754. However, 3753.75
- gets truncated to 3753, so if that's what it is, ++ it. */
- if (pv->init_delay == 3753)
- pv->init_delay++;
-
- /* For VFR, libhb sees the FPS as 29.97, but the longest frames
- will use the duration of frames running at 23.976fps instead.. */
- if (job->vfr)
- {
- pv->init_delay = 7506;
- }
-
- /* The delay is 2 frames for regular b-frames, 3 for b-pyramid.
- Since job->areBframes is 1 for b-frames and 2 for b-pyramid,
- add one to it and use it as a multiplier. */
- pv->init_delay *= ( job->areBframes + 1);
+ int uvsize = ( (job->width + 1) >> 1 ) * ( (job->height + 1) >> 1 );
+ pv->grey_data = malloc( uvsize );
+ memset( pv->grey_data, 0x80, uvsize );
+ pv->pic_in.img.plane[1] = pv->pic_in.img.plane[2] = pv->grey_data;
}
return 0;
void encx264Close( hb_work_object_t * w )
{
hb_work_private_t * pv = w->private_data;
- /*
- * Patch the x264 allocated data back in so that x264 can free it
- * we have been using our own buffers during the encode to avoid copying.
- */
- pv->pic_in.img.plane[0] = pv->x264_allocated_pic;
- x264_picture_clean( &pv->pic_in );
+
+ if ( pv->frames_split )
+ {
+ hb_log( "encx264: %u frames had to be split (%u in, %u out)",
+ pv->frames_split, pv->frames_in, pv->frames_out );
+ }
+ free( pv->grey_data );
x264_encoder_close( pv->x264 );
free( pv );
w->private_data = NULL;
return pv->frame_info[i].duration;
}
-int encx264Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
- hb_buffer_t ** buf_out )
+static hb_buffer_t *nal_encode( hb_work_object_t *w, x264_picture_t *pic_out,
+ int i_nal, x264_nal_t *nal )
{
- hb_work_private_t * pv = w->private_data;
- hb_job_t * job = pv->job;
- hb_buffer_t * in = *buf_in, * buf;
- x264_picture_t pic_out;
- int i_nal;
- x264_nal_t * nal;
- int i;
-
- if( in->data )
+ hb_buffer_t *buf = NULL;
+ hb_work_private_t *pv = w->private_data;
+ hb_job_t *job = pv->job;
+
+ /* Should be way too large */
+ buf = hb_video_buffer_init( job->width, job->height );
+ buf->size = 0;
+ buf->frametype = 0;
+
+ // use the pts to get the original frame's duration.
+ int64_t duration = get_frame_duration( pv, pic_out->i_pts );
+ buf->start = pic_out->i_pts;
+ buf->stop = pic_out->i_pts + duration;
+ buf->renderOffset = pic_out->i_dts;
+ if ( !w->config->h264.init_delay && pic_out->i_dts < 0 )
{
- /*
- * Point x264 at our current buffers Y(UV) data.
- */
- pv->pic_in.img.plane[0] = in->data;
+ w->config->h264.init_delay = -pic_out->i_dts;
+ }
- if( job->grayscale )
- {
- /* XXX x264 has currently no option for grayscale encoding */
- memset( pv->pic_in.img.plane[1], 0x80, job->width * job->height / 4 );
- memset( pv->pic_in.img.plane[2], 0x80, job->width * job->height / 4 );
- }
- else
+ /* Encode all the NALs we were given into buf.
+ NOTE: This code assumes one video frame per NAL (but there can
+ be other stuff like SPS and/or PPS). If there are multiple
+ frames we only get the duration of the first which will
+ eventually screw up the muxer & decoder. */
+ int i;
+ for( i = 0; i < i_nal; i++ )
+ {
+ int size = nal[i].i_payload;
+ memcpy(buf->data + buf->size, nal[i].p_payload, size);
+ if( size < 1 )
{
- /*
- * Point x264 at our buffers (Y)UV data
- */
- pv->pic_in.img.plane[1] = in->data + job->width * job->height;
- pv->pic_in.img.plane[2] = in->data + 5 * job->width *
- job->height / 4;
+ continue;
}
- if( pv->dts_next == -1 )
+ /* H.264 in .mp4 or .mkv */
+ switch( nal[i].i_type )
{
- /* we don't have a start time yet so use the first frame's
- * start. All other frame times will be determined by the
- * sum of the prior output frame durations in *DTS* order
- * (not by the order they arrive here). This timing change is
- * essential for VFR with b-frames but a complete nop otherwise.
+ /* Sequence Parameter Set & Program Parameter Set go in the
+ * mp4 header so skip them here
*/
- pv->dts_next = in->start;
+ case NAL_SPS:
+ case NAL_PPS:
+ continue;
+
+ case NAL_SLICE:
+ case NAL_SLICE_IDR:
+ case NAL_SEI:
+ default:
+ break;
}
- if( in->new_chap && job->chapter_markers )
+
+ /* Decide what type of frame we have. */
+ switch( pic_out->i_type )
{
- /* chapters have to start with an IDR frame so request that this
- frame be coded as IDR. Since there may be up to 16 frames
- currently buffered in the encoder remember the timestamp so
- when this frame finally pops out of the encoder we'll mark
- its buffer as the start of a chapter. */
- pv->pic_in.i_type = X264_TYPE_IDR;
- if( pv->next_chap == 0 )
- {
- pv->next_chap = in->start;
- }
- /* don't let 'work_loop' put a chapter mark on the wrong buffer */
- in->new_chap = 0;
+ case X264_TYPE_IDR:
+ buf->frametype = HB_FRAME_IDR;
+ /* if we have a chapter marker pending and this
+ frame's presentation time stamp is at or after
+ the marker's time stamp, use this as the
+ chapter start. */
+ if( pv->next_chap != 0 && pv->next_chap <= pic_out->i_pts )
+ {
+ pv->next_chap = 0;
+ buf->new_chap = pv->chap_mark;
+ }
+ break;
+
+ case X264_TYPE_I:
+ buf->frametype = HB_FRAME_I;
+ break;
+
+ case X264_TYPE_P:
+ buf->frametype = HB_FRAME_P;
+ break;
+
+ case X264_TYPE_B:
+ buf->frametype = HB_FRAME_B;
+ break;
+
+ /* This is for b-pyramid, which has reference b-frames
+ However, it doesn't seem to ever be used... */
+ case X264_TYPE_BREF:
+ buf->frametype = HB_FRAME_BREF;
+ break;
+
+ // If it isn't the above, what type of frame is it??
+ default:
+ buf->frametype = 0;
+ break;
}
+
+ /* Since libx264 doesn't tell us when b-frames are
+ themselves reference frames, figure it out on our own. */
+ if( (buf->frametype == HB_FRAME_B) &&
+ (nal[i].i_ref_idc != NAL_PRIORITY_DISPOSABLE) )
+ buf->frametype = HB_FRAME_BREF;
+
+ /* Expose disposable bit to muxer. */
+ if( nal[i].i_ref_idc == NAL_PRIORITY_DISPOSABLE )
+ buf->flags &= ~HB_FRAME_REF;
else
- {
- pv->pic_in.i_type = X264_TYPE_AUTO;
- }
- pv->pic_in.i_qpplus1 = 0;
+ buf->flags |= HB_FRAME_REF;
- /* XXX this is temporary debugging code to check that the upstream
- * modules (render & sync) have generated a continuous, self-consistent
- * frame stream with the current frame's start time equal to the
- * previous frame's stop time.
- */
- if( pv->last_stop != in->start )
- {
- hb_log("encx264 input continuity err: last stop %lld start %lld",
- pv->last_stop, in->start);
- }
- pv->last_stop = in->stop;
+ buf->size += size;
+ }
+ // make sure we found at least one video frame
+ if ( buf->size <= 0 )
+ {
+ // no video - discard the buf
+ hb_buffer_close( &buf );
+ }
+ return buf;
+}
- // Remember info about this frame that we need to pass across
- // the x264_encoder_encode call (since it reorders frames).
- save_frame_info( pv, in );
+static hb_buffer_t *x264_encode( hb_work_object_t *w, hb_buffer_t *in )
+{
+ hb_work_private_t *pv = w->private_data;
+ hb_job_t *job = pv->job;
- /* Feed the input DTS to x264 so it can figure out proper output PTS */
- pv->pic_in.i_pts = in->start;
+ /* Point x264 at our current buffers Y(UV) data. */
+ pv->pic_in.img.plane[0] = in->data;
- x264_encoder_encode( pv->x264, &nal, &i_nal,
- &pv->pic_in, &pic_out );
+ int uvsize = ( (job->width + 1) >> 1 ) * ( (job->height + 1) >> 1 );
+ if( !job->grayscale )
+ {
+ /* Point x264 at our buffers (Y)UV data */
+ pv->pic_in.img.plane[1] = in->data + job->width * job->height;
+ pv->pic_in.img.plane[2] = pv->pic_in.img.plane[1] + uvsize;
}
- else
+ if( in->new_chap && job->chapter_markers )
{
- x264_encoder_encode( pv->x264, &nal, &i_nal,
- NULL, &pic_out );
- /* No more delayed B frames */
- if( i_nal == 0 )
+ /* chapters have to start with an IDR frame so request that this
+ frame be coded as IDR. Since there may be up to 16 frames
+ currently buffered in the encoder remember the timestamp so
+ when this frame finally pops out of the encoder we'll mark
+ its buffer as the start of a chapter. */
+ pv->pic_in.i_type = X264_TYPE_IDR;
+ if( pv->next_chap == 0 )
{
- *buf_out = NULL;
- return HB_WORK_DONE;
- }
- else
- {
- /* Since we output at least one more frame, drop another empty
- one onto our input fifo. We'll keep doing this automatically
- until we stop getting frames out of the encoder. */
- hb_fifo_push(w->fifo_in, hb_buffer_init(0));
+ pv->next_chap = in->start;
+ pv->chap_mark = in->new_chap;
}
+ /* don't let 'work_loop' put a chapter mark on the wrong buffer */
+ in->new_chap = 0;
+ }
+ else
+ {
+ pv->pic_in.i_type = X264_TYPE_AUTO;
}
- if( i_nal )
+ /* XXX this is temporary debugging code to check that the upstream
+ * modules (render & sync) have generated a continuous, self-consistent
+ * frame stream with the current frame's start time equal to the
+ * previous frame's stop time.
+ */
+ if( pv->last_stop != in->start )
{
- /* Should be way too large */
- buf = hb_buffer_init( 3 * job->width * job->height / 2 );
- buf->size = 0;
- buf->frametype = 0;
+ hb_log("encx264 input continuity err: last stop %"PRId64" start %"PRId64,
+ pv->last_stop, in->start);
+ }
+ pv->last_stop = in->stop;
- /* Get next DTS value to use */
- int64_t dts_start = pv->dts_next;
+ // Remember info about this frame that we need to pass across
+ // the x264_encoder_encode call (since it reorders frames).
+ save_frame_info( pv, in );
- /* compute the stop time based on the original frame's duration */
- int64_t dts_stop = dts_start + get_frame_duration( pv, pic_out.i_pts );
- pv->dts_next = dts_stop;
+ /* Feed the input PTS to x264 so it can figure out proper output PTS */
+ pv->pic_in.i_pts = in->start;
- for( i = 0; i < i_nal; i++ )
- {
- int size, data;
+ x264_picture_t pic_out;
+ int i_nal;
+ x264_nal_t *nal;
- data = buf->alloc - buf->size;
- if( ( size = x264_nal_encode( buf->data + buf->size, &data,
- 1, &nal[i] ) ) < 1 )
- {
- continue;
- }
+ x264_encoder_encode( pv->x264, &nal, &i_nal, &pv->pic_in, &pic_out );
+ if ( i_nal > 0 )
+ {
+ return nal_encode( w, &pic_out, i_nal, nal );
+ }
+ return NULL;
+}
- if( job->mux & HB_MUX_AVI )
- {
- if( nal[i].i_ref_idc == NAL_PRIORITY_HIGHEST )
- {
- buf->frametype = HB_FRAME_KEY;
- }
- buf->size += size;
+int encx264Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
+ hb_buffer_t ** buf_out )
+{
+ hb_work_private_t *pv = w->private_data;
+ hb_buffer_t *in = *buf_in;
+
+ *buf_out = NULL;
+
+ if( in->size <= 0 )
+ {
+ // EOF on input. Flush any frames still in the decoder then
+ // send the eof downstream to tell the muxer we're done.
+ x264_picture_t pic_out;
+ int i_nal;
+ x264_nal_t *nal;
+ hb_buffer_t *last_buf = NULL;
+
+ while ( x264_encoder_delayed_frames( pv->x264 ) )
+ {
+ x264_encoder_encode( pv->x264, &nal, &i_nal, NULL, &pic_out );
+ if ( i_nal == 0 )
continue;
- }
+ if ( i_nal < 0 )
+ break;
- /* H.264 in .mp4 */
- switch( buf->data[buf->size+4] & 0x1f )
+ hb_buffer_t *buf = nal_encode( w, &pic_out, i_nal, nal );
+ if ( buf )
{
- case 0x7:
- case 0x8:
- /* SPS, PPS */
- break;
-
- default:
- /* H.264 in mp4 (stolen from mp4creator) */
- buf->data[buf->size+0] = ( ( size - 4 ) >> 24 ) & 0xFF;
- buf->data[buf->size+1] = ( ( size - 4 ) >> 16 ) & 0xFF;
- buf->data[buf->size+2] = ( ( size - 4 ) >> 8 ) & 0xFF;
- buf->data[buf->size+3] = ( ( size - 4 ) >> 0 ) & 0xFF;
- switch( pic_out.i_type )
- {
- /* Decide what type of frame we have. */
- case X264_TYPE_IDR:
- buf->frametype = HB_FRAME_IDR;
- /* if we have a chapter marker pending and this
- frame's presentation time stamp is at or after
- the marker's time stamp, use this as the
- chapter start. */
- if( pv->next_chap != 0 && pv->next_chap <= pic_out.i_pts )
- {
- pv->next_chap = 0;
- buf->new_chap = 1;
- }
- break;
- case X264_TYPE_I:
- buf->frametype = HB_FRAME_I;
- break;
- case X264_TYPE_P:
- buf->frametype = HB_FRAME_P;
- break;
- case X264_TYPE_B:
- buf->frametype = HB_FRAME_B;
- break;
- /* This is for b-pyramid, which has reference b-frames
- However, it doesn't seem to ever be used... */
- case X264_TYPE_BREF:
- buf->frametype = HB_FRAME_BREF;
- break;
- /* If it isn't the above, what type of frame is it?? */
- default:
- buf->frametype = 0;
- }
-
- /* Since libx264 doesn't tell us when b-frames are
- themselves reference frames, figure it out on our own. */
- if( (buf->frametype == HB_FRAME_B) && (nal[i].i_ref_idc != NAL_PRIORITY_DISPOSABLE) )
- buf->frametype = HB_FRAME_BREF;
-
- /* Store the output presentation time stamp
- from x264 for use by muxmp4 in off-setting
- b-frames with the CTTS atom. */
- buf->renderOffset = pic_out.i_pts - dts_start + pv->init_delay;
-
- buf->size += size;
+ ++pv->frames_out;
+ if ( last_buf == NULL )
+ *buf_out = buf;
+ else
+ last_buf->next = buf;
+ last_buf = buf;
}
}
- /* Send out the next dts values */
- buf->start = dts_start;
- buf->stop = dts_stop;
- }
-
- else
- buf = NULL;
+ // Flushed everything - add the eof to the end of the chain.
+ if ( last_buf == NULL )
+ *buf_out = in;
+ else
+ last_buf->next = in;
- *buf_out = buf;
+ *buf_in = NULL;
+ return HB_WORK_DONE;
+ }
+ // Not EOF - encode the packet & wrap it in a NAL
+ ++pv->frames_in;
+ ++pv->frames_out;
+ *buf_out = x264_encode( w, in );
return HB_WORK_OK;
}
OSDN Git Service
