X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=libhb%2Fbd.c;fp=libhb%2Fbd.c;h=4e4865befc83c2f4dacf7cc737ec8425a6caf543;hb=736ce2deba7db0b7f3d5f44e638e0d31de975730;hp=0000000000000000000000000000000000000000;hpb=57c0057e6e20056df7fbd68694a34e603f9f11bd;p=handbrake-jp%2Fhandbrake-jp.git

diff --git a/libhb/bd.c b/libhb/bd.c
new file mode 100644
index 0000000..4e4865b
--- /dev/null
+++ b/libhb/bd.c
@@ -0,0 +1,665 @@
+/* $Id: dvd.c,v 1.12 2005/11/25 15:05:25 titer Exp $
+
+   This file is part of the HandBrake source code.
+   Homepage: <http://handbrake.fr/>.
+   It may be used under the terms of the GNU General Public License. */
+
+#include "hb.h"
+#include "lang.h"
+#include "hbffmpeg.h"
+
+#include "libbluray/bluray.h"
+
+struct hb_bd_s
+{
+    char         * path;
+    BLURAY       * bd;
+    int            title_count;
+    uint64_t       pkt_count;
+    hb_stream_t  * stream;
+    int            chapter;
+    int            next_chap;
+};
+
+/***********************************************************************
+ * Local prototypes
+ **********************************************************************/
+static int           next_packet( BLURAY *bd, uint8_t *pkt );
+
+/***********************************************************************
+ * hb_bd_init
+ ***********************************************************************
+ *
+ **********************************************************************/
+hb_bd_t * hb_bd_init( char * path )
+{
+    hb_bd_t * d;
+
+    d = calloc( sizeof( hb_bd_t ), 1 );
+
+    /* Open device */
+    d->bd = bd_open( path, NULL );
+    if( d->bd == NULL )
+    {
+        /*
+         * Not an error, may be a stream - which we'll try in a moment.
+         */
+        hb_log( "bd: not a bd - trying as a stream/file instead" );
+        goto fail;
+    }
+
+    d->title_count = bd_get_titles( d->bd, TITLES_RELEVANT );
+    if ( d->title_count == 0 )
+    {
+        hb_log( "bd: not a bd - trying as a stream/file instead" );
+        goto fail;
+    }
+    d->path = strdup( path );
+
+    return d;
+
+fail:
+    if( d->bd ) bd_close( d->bd );
+    free( d );
+    return NULL;
+}
+
+/***********************************************************************
+ * hb_bd_title_count
+ **********************************************************************/
+int hb_bd_title_count( hb_bd_t * d )
+{
+    return d->title_count;
+}
+
+/***********************************************************************
+ * hb_bd_title_scan
+ **********************************************************************/
+hb_title_t * hb_bd_title_scan( hb_bd_t * d, int tt, uint64_t min_duration )
+{
+
+    hb_title_t   * title;
+    hb_chapter_t * chapter;
+    int            ii;
+    BLURAY_TITLE_INFO * ti = NULL;
+
+    hb_log( "bd: scanning title %d", tt );
+
+    title = hb_title_init( d->path, tt );
+    title->demuxer = HB_MPEG2_TS_DEMUXER;
+    title->type = HB_BD_TYPE;
+    title->reg_desc = STR4_TO_UINT32("HDMV");
+
+    char * p_cur, * p_last = d->path;
+    for( p_cur = d->path; *p_cur; p_cur++ )
+    {
+        if( p_cur[0] == '/' && p_cur[1] )
+        {
+            p_last = &p_cur[1];
+        }
+    }
+    snprintf( title->name, sizeof( title->name ), "%s", p_last );
+    strncpy( title->path, d->path, 1024 );
+    title->path[1023] = 0;
+
+    title->vts = 0;
+    title->ttn = 0;
+
+    ti = bd_get_title_info( d->bd, tt - 1 );
+    if ( ti == NULL )
+    {
+        hb_log( "bd: invalid title" );
+        goto fail;
+    }
+    if ( ti->clip_count == 0 )
+    {
+        hb_log( "bd: stream has no clips" );
+        goto fail;
+    }
+    if ( ti->clips[0].video_stream_count == 0 )
+    {
+        hb_log( "bd: stream has no video" );
+        goto fail;
+    }
+
+    uint64_t pkt_count = 0;
+    for ( ii = 0; ii < ti->clip_count; ii++ )
+    {
+        pkt_count += ti->clips[ii].pkt_count;
+    }
+    title->block_start = 0;
+    title->block_end = pkt_count;
+    title->block_count = pkt_count;
+
+    title->angle_count = ti->angle_count;
+
+    /* Get duration */
+    title->duration = ti->duration;
+    title->hours    = title->duration / 90000 / 3600;
+    title->minutes  = ( ( title->duration / 90000 ) % 3600 ) / 60;
+    title->seconds  = ( title->duration / 90000 ) % 60;
+    hb_log( "bd: duration is %02d:%02d:%02d (%"PRId64" ms)",
+            title->hours, title->minutes, title->seconds,
+            title->duration / 90 );
+
+    /* ignore short titles because they're often stills */
+    if( ti->duration < min_duration )
+    {
+        hb_log( "bd: ignoring title (too short)" );
+        goto fail;
+    }
+
+    BLURAY_STREAM_INFO * bdvideo = &ti->clips[0].video_streams[0];
+
+    title->video_id = bdvideo->pid;
+    title->video_stream_type = bdvideo->coding_type;
+
+    hb_log( "bd: video id=%x, stream type=%s, format %s", title->video_id,
+            bdvideo->coding_type == BLURAY_STREAM_TYPE_VIDEO_MPEG1 ? "MPEG1" :
+            bdvideo->coding_type == BLURAY_STREAM_TYPE_VIDEO_MPEG2 ? "MPEG2" :
+            bdvideo->coding_type == BLURAY_STREAM_TYPE_VIDEO_VC1 ? "VC-1" :
+            bdvideo->coding_type == BLURAY_STREAM_TYPE_VIDEO_H264 ? "H264" :
+            "Unknown",
+            bdvideo->format == BLURAY_VIDEO_FORMAT_480I ? "480i" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_576I ? "576i" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_480P ? "480p" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_1080I ? "1080i" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_720P ? "720p" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_1080P ? "1080p" :
+            bdvideo->format == BLURAY_VIDEO_FORMAT_576P ? "576p" :
+            "Unknown"
+          );
+
+    if ( bdvideo->coding_type == BLURAY_STREAM_TYPE_VIDEO_VC1 &&
+       ( bdvideo->format == BLURAY_VIDEO_FORMAT_480I ||
+         bdvideo->format == BLURAY_VIDEO_FORMAT_576I ||
+         bdvideo->format == BLURAY_VIDEO_FORMAT_1080I ) )
+    {
+        hb_log( "bd: Interlaced VC-1 not supported" );
+        goto fail;
+    }
+
+    switch( bdvideo->coding_type )
+    {
+        case BLURAY_STREAM_TYPE_VIDEO_MPEG1:
+        case BLURAY_STREAM_TYPE_VIDEO_MPEG2:
+            title->video_codec = WORK_DECMPEG2;
+            title->video_codec_param = 0;
+            break;
+
+        case BLURAY_STREAM_TYPE_VIDEO_VC1:
+            title->video_codec = WORK_DECAVCODECV;
+            title->video_codec_param = CODEC_ID_VC1;
+            break;
+
+        case BLURAY_STREAM_TYPE_VIDEO_H264:
+            title->video_codec = WORK_DECAVCODECV;
+            title->video_codec_param = CODEC_ID_H264;
+            title->flags |= HBTF_NO_IDR;
+            break;
+
+        default:
+            hb_log( "scan: unknown video codec (%x)",
+                    bdvideo->coding_type );
+            goto fail;
+    }
+
+    switch ( bdvideo->aspect )
+    {
+        case BLURAY_ASPECT_RATIO_4_3:
+            title->container_aspect = 4. / 3.;
+            break;
+        case BLURAY_ASPECT_RATIO_16_9:
+            title->container_aspect = 16. / 9.;
+            break;
+        default:
+            hb_log( "bd: unknown aspect" );
+            goto fail;
+    }
+    hb_log( "bd: aspect = %g", title->container_aspect );
+
+    /* Detect audio */
+    // The BD may have clips that have no audio tracks, so scan
+    // the list of clips for one that has audio.
+    int most_audio = 0;
+    int audio_clip_index = 0;
+    for ( ii = 0; ii < ti->clip_count; ii++ )
+    {
+        if ( most_audio < ti->clips[ii].audio_stream_count )
+        {
+            most_audio = ti->clips[ii].audio_stream_count;
+            audio_clip_index = ii;
+        }
+    }
+    // Add all the audios found in the above clip.
+    for ( ii = 0; ii < ti->clips[audio_clip_index].audio_stream_count; ii++ )
+    {
+        hb_audio_t * audio;
+        iso639_lang_t * lang;
+        BLURAY_STREAM_INFO * bdaudio;
+
+        bdaudio = &ti->clips[audio_clip_index].audio_streams[ii];
+
+        hb_log( "bd: checking audio %d", ii + 1 );
+
+        audio = calloc( sizeof( hb_audio_t ), 1 );
+
+        audio->id = bdaudio->pid;
+
+        audio->config.in.stream_type = bdaudio->coding_type;
+        switch( bdaudio->coding_type )
+        {
+            case BLURAY_STREAM_TYPE_AUDIO_AC3:
+            case BLURAY_STREAM_TYPE_AUDIO_TRUHD:
+                audio->config.in.codec = HB_ACODEC_AC3;
+                audio->config.in.codec_param = 0;
+                break;
+
+            case BLURAY_STREAM_TYPE_AUDIO_LPCM:
+                audio->config.in.codec = HB_ACODEC_MPGA;
+                audio->config.in.codec_param = CODEC_ID_PCM_BLURAY;
+                break;
+
+            case BLURAY_STREAM_TYPE_AUDIO_AC3PLUS:
+                audio->config.in.codec = HB_ACODEC_MPGA;
+                audio->config.in.codec_param = CODEC_ID_AC3;
+                break;
+
+            case BLURAY_STREAM_TYPE_AUDIO_MPEG1:
+            case BLURAY_STREAM_TYPE_AUDIO_MPEG2:
+                audio->config.in.codec = HB_ACODEC_MPGA;
+                audio->config.in.codec_param = CODEC_ID_MP2;
+                break;
+
+            case BLURAY_STREAM_TYPE_AUDIO_DTS:
+            case BLURAY_STREAM_TYPE_AUDIO_DTSHD:
+            case BLURAY_STREAM_TYPE_AUDIO_DTSHD_MASTER:
+                audio->config.in.codec = HB_ACODEC_DCA;
+                audio->config.in.codec_param = 0;
+                break;
+
+            default:
+                audio->config.in.codec = 0;
+                hb_log( "scan: unknown audio codec (%x)",
+                        bdaudio->coding_type );
+                break;
+        }
+
+        audio->config.lang.type = 0;
+        lang = lang_for_code2( (char*)bdaudio->lang );
+
+        snprintf( audio->config.lang.description, 
+                  sizeof( audio->config.lang.description ), "%s (%s)",
+                  strlen(lang->native_name) ? lang->native_name : 
+                                              lang->eng_name,
+                  audio->config.in.codec == HB_ACODEC_AC3 ? "AC3" : 
+                  ( audio->config.in.codec == HB_ACODEC_DCA ? "DTS" : 
+                  ( audio->config.in.codec == HB_ACODEC_MPGA ? "MPEG" : 
+                                                               "LPCM" ) ) );
+
+        snprintf( audio->config.lang.simple, 
+                  sizeof( audio->config.lang.simple ), "%s",
+                  strlen(lang->native_name) ? lang->native_name : 
+                                              lang->eng_name );
+
+        snprintf( audio->config.lang.iso639_2, 
+                  sizeof( audio->config.lang.iso639_2 ), "%s", lang->iso639_2);
+
+        hb_log( "bd: audio id=%x, lang=%s, 3cc=%s", audio->id,
+                audio->config.lang.description, audio->config.lang.iso639_2 );
+
+        audio->config.in.track = ii;
+        hb_list_add( title->list_audio, audio );
+    }
+
+    /* Chapters */
+    for ( ii = 0; ii < ti->chapter_count; ii++ )
+    {
+        chapter = calloc( sizeof( hb_chapter_t ), 1 );
+
+        chapter->index = ii + 1;
+        chapter->duration = ti->chapters[ii].duration;
+        chapter->block_start = ti->chapters[ii].offset;
+
+        int seconds;
+        seconds            = ( chapter->duration + 45000 ) / 90000;
+        chapter->hours     = seconds / 3600;
+        chapter->minutes   = ( seconds % 3600 ) / 60;
+        chapter->seconds   = seconds % 60;
+
+        hb_log( "bd: chap %d packet=%"PRIu64", %"PRId64" ms",
+                chapter->index,
+                chapter->block_start,
+                chapter->duration / 90 );
+
+        hb_list_add( title->list_chapter, chapter );
+    }
+    hb_log( "bd: title %d has %d chapters", tt, ti->chapter_count );
+
+    /* This title is ok so far */
+    goto cleanup;
+
+fail:
+    hb_list_close( &title->list_audio );
+    free( title );
+    title = NULL;
+
+cleanup:
+    if ( ti ) bd_free_title_info( ti );
+
+    return title;
+}
+
+/***********************************************************************
+ * hb_bd_main_feature
+ **********************************************************************/
+int hb_bd_main_feature( hb_bd_t * d, hb_list_t * list_title )
+{
+    int longest = 0;
+    int ii;
+    uint64_t longest_duration = 0;
+    int highest_rank = 0;
+    int rank[8] = {0, 1, 3, 2, 6, 5, 7, 4};
+    BLURAY_TITLE_INFO * ti;
+
+    for ( ii = 0; ii < hb_list_count( list_title ); ii++ )
+    {
+        hb_title_t * title = hb_list_item( list_title, ii );
+        ti = bd_get_title_info( d->bd, title->index - 1 );
+        if ( ti ) 
+        {
+            BLURAY_STREAM_INFO * bdvideo = &ti->clips[0].video_streams[0];
+            if ( title->duration > longest_duration * 0.7 && bdvideo->format < 8 )
+            {
+                if (highest_rank < rank[bdvideo->format] ||
+                    ( title->duration > longest_duration &&
+                          highest_rank == rank[bdvideo->format]))
+                {
+                    longest = title->index;
+                    longest_duration = title->duration;
+                    highest_rank = rank[bdvideo->format];
+                }
+            }
+            bd_free_title_info( ti );
+        }
+        else if ( title->duration > longest_duration )
+        {
+            longest_duration = title->duration;
+            longest = title->index;
+        }
+    }
+    return longest;
+}
+
+/***********************************************************************
+ * hb_bd_start
+ ***********************************************************************
+ * Title and chapter start at 1
+ **********************************************************************/
+int hb_bd_start( hb_bd_t * d, hb_title_t *title )
+{
+    BD_EVENT event;
+
+    d->pkt_count = title->block_count;
+
+    // Calling bd_get_event initializes libbluray event queue.
+    bd_select_title( d->bd, title->index - 1 );
+    bd_get_event( d->bd, &event );
+    d->chapter = 1;
+    d->stream = hb_bd_stream_open( title );
+    if ( d->stream == NULL )
+    {
+        return 0;
+    }
+    return 1;
+}
+
+/***********************************************************************
+ * hb_bd_stop
+ ***********************************************************************
+ *
+ **********************************************************************/
+void hb_bd_stop( hb_bd_t * d )
+{
+    if( d->stream ) hb_stream_close( &d->stream );
+}
+
+/***********************************************************************
+ * hb_bd_seek
+ ***********************************************************************
+ *
+ **********************************************************************/
+int hb_bd_seek( hb_bd_t * d, float f )
+{
+    uint64_t packet = f * d->pkt_count;
+
+    bd_seek(d->bd, packet * 192);
+    d->next_chap = bd_get_current_chapter( d->bd ) + 1;
+    return 1;
+}
+
+int hb_bd_seek_pts( hb_bd_t * d, uint64_t pts )
+{
+    bd_seek_time(d->bd, pts);
+    d->next_chap = bd_get_current_chapter( d->bd ) + 1;
+    return 1;
+}
+
+int hb_bd_seek_chapter( hb_bd_t * d, int c )
+{
+    int64_t pos;
+    d->next_chap = c;
+    pos = bd_seek_chapter( d->bd, c - 1 );
+    return 1;
+}
+
+/***********************************************************************
+ * hb_bd_read
+ ***********************************************************************
+ *
+ **********************************************************************/
+int hb_bd_read( hb_bd_t * d, hb_buffer_t * b )
+{
+    int result;
+    int error_count = 0;
+    uint8_t buf[192];
+    BD_EVENT event;
+    uint64_t pos;
+
+    while ( 1 )
+    {
+        if ( d->next_chap != d->chapter )
+        {
+            b->new_chap = d->chapter = d->next_chap;
+        }
+        result = next_packet( d->bd, buf );
+        if ( result < 0 )
+        {
+            hb_error("bd: Read Error");
+            pos = bd_tell( d->bd );
+            bd_seek( d->bd, pos + 192 );
+            error_count++;
+            if (error_count > 10)
+            {
+                hb_error("bd: Error, too many consecutive read errors");
+                return 0;
+            }
+            continue;
+        }
+        else if ( result == 0 )
+        {
+            return 0;
+        }
+
+        error_count = 0;
+        while ( bd_get_event( d->bd, &event ) )
+        {
+            switch ( event.event )
+            {
+                case BD_EVENT_CHAPTER:
+                    // The muxers expect to only get chapter 2 and above
+                    // They write chapter 1 when chapter 2 is detected.
+                    d->next_chap = event.param;
+                    break;
+
+                default:
+                    break;
+            }
+        }
+        // buf+4 to skip the BD timestamp at start of packet
+        result = hb_ts_decode_pkt( d->stream, buf+4, b );
+        if ( result )
+        {
+            return 1;
+        }
+    }
+    return 0;
+}
+
+/***********************************************************************
+ * hb_bd_chapter
+ ***********************************************************************
+ * Returns in which chapter the next block to be read is.
+ * Chapter numbers start at 1.
+ **********************************************************************/
+int hb_bd_chapter( hb_bd_t * d )
+{
+    return d->next_chap;
+}
+
+/***********************************************************************
+ * hb_bd_close
+ ***********************************************************************
+ * Closes and frees everything
+ **********************************************************************/
+void hb_bd_close( hb_bd_t ** _d )
+{
+    hb_bd_t * d = *_d;
+
+    if( d->stream ) hb_stream_close( &d->stream );
+    if( d->bd ) bd_close( d->bd );
+
+    free( d );
+    *_d = NULL;
+}
+
+/***********************************************************************
+ * hb_bd_set_angle
+ ***********************************************************************
+ * Sets the angle to read
+ **********************************************************************/
+void hb_bd_set_angle( hb_bd_t * d, int angle )
+{
+
+    if ( !bd_select_angle( d->bd, angle) )
+    {
+        hb_log("bd_select_angle failed");
+    }
+}
+
+static int check_ts_sync(const uint8_t *buf)
+{
+    // must have initial sync byte, no scrambling & a legal adaptation ctrl
+    return (buf[0] == 0x47) && ((buf[3] >> 6) == 0) && ((buf[3] >> 4) > 0);
+}
+
+static int have_ts_sync(const uint8_t *buf, int psize)
+{
+    return check_ts_sync(&buf[0*psize]) && check_ts_sync(&buf[1*psize]) &&
+           check_ts_sync(&buf[2*psize]) && check_ts_sync(&buf[3*psize]) &&
+           check_ts_sync(&buf[4*psize]) && check_ts_sync(&buf[5*psize]) &&
+           check_ts_sync(&buf[6*psize]) && check_ts_sync(&buf[7*psize]);
+}
+
+#define MAX_HOLE 192*80
+
+static uint64_t align_to_next_packet(BLURAY *bd, uint8_t *pkt)
+{
+    uint8_t buf[MAX_HOLE];
+    uint64_t pos = 0;
+    uint64_t start = bd_tell(bd);
+    uint64_t orig;
+    uint64_t off = 192;
+
+    memcpy(buf, pkt, 192);
+    if ( start >= 192 ) {
+        start -= 192;
+    }
+    orig = start;
+
+    while (1)
+    {
+        if (bd_read(bd, buf+off, sizeof(buf)-off) == sizeof(buf)-off)
+        {
+            const uint8_t *bp = buf;
+            int i;
+
+            for ( i = sizeof(buf) - 8 * 192; --i >= 0; ++bp )
+            {
+                if ( have_ts_sync( bp, 192 ) )
+                {
+                    break;
+                }
+            }
+            if ( i >= 0 )
+            {
+                pos = ( bp - buf );
+                break;
+            }
+            off = 8 * 192;
+            memcpy(buf, buf + sizeof(buf) - off, off);
+            start += sizeof(buf) - off;
+        }
+        else
+        {
+            return 0;
+        }
+    }
+    off = start + pos - 4;
+    // bd_seek seeks to the nearest access unit *before* the requested position
+    // we don't want to seek backwards, so we need to read until we get
+    // past that position.
+    bd_seek(bd, off);
+    while (off > bd_tell(bd))
+    {
+        if (bd_read(bd, buf, 192) != 192)
+        {
+            break;
+        }
+    }
+    return start - orig + pos;
+}
+
+static int next_packet( BLURAY *bd, uint8_t *pkt )
+{
+    int result;
+
+    while ( 1 )
+    {
+        result = bd_read( bd, pkt, 192 );
+        if ( result < 0 )
+        {
+            return -1;
+        }
+        if ( result < 192 )
+        {
+            return 0;
+        }
+        // Sync byte is byte 4.  0-3 are timestamp.
+        if (pkt[4] == 0x47)
+        {
+            return 1;
+        }
+        // lost sync - back up to where we started then try to re-establish.
+        uint64_t pos = bd_tell(bd);
+        uint64_t pos2 = align_to_next_packet(bd, pkt);
+        if ( pos2 == 0 )
+        {
+            hb_log( "next_packet: eof while re-establishing sync @ %"PRId64, pos );
+            return 0;
+        }
+        hb_log( "next_packet: sync lost @ %"PRId64", regained after %"PRId64" bytes",
+                 pos, pos2 );
+    }
+}
+