libhb/muxmkv.c

   1 /* $Id:  $
   2
   3    This file is part of the HandBrake source code.
   4    Homepage: <http://handbrake.m0k.org/>.
   5    It may be used under the terms of the GNU General Public License. */
   6
   7 /* libmkv header */
   8 #include "libmkv.h"
   9
  10 #include <ogg/ogg.h>
  11
  12 #include "hb.h"
  13
  14 /* Scale factor to apply to timecodes to convert from HandBrake's
  15  * 1/90000s to nanoseconds as expected by libmkv */
  16 #define TIMECODE_SCALE 1000000000 / 90000
  17
  18 struct hb_mux_object_s
  19 {
  20     HB_MUX_COMMON;
  21
  22     hb_job_t * job;
  23
  24     mk_Writer * file;
  25 };
  26
  27 struct hb_mux_data_s
  28 {
  29     mk_Track  * track;
  30     uint64_t  prev_chapter_tc;
  31     uint16_t  current_chapter;
  32 };
  33
  34 /**********************************************************************
  35  * MKVInit
  36  **********************************************************************
  37  * Allocates hb_mux_data_t structures, create file and write headers
  38  *********************************************************************/
  39 static int MKVInit( hb_mux_object_t * m )
  40 {
  41     hb_job_t   * job   = m->job;
  42     hb_title_t * title = job->title;
  43     hb_audio_t    * audio;
  44     hb_mux_data_t * mux_data;
  45
  46     uint8_t         *avcC = NULL;
  47     uint8_t         default_track_flag = 1;
  48     int             avcC_len, i;
  49     ogg_packet      *ogg_headers[3];
  50     mk_TrackConfig *track;
  51
  52     track = calloc(1, sizeof(mk_TrackConfig));
  53
  54     m->file = mk_createWriter(job->file, 1000000, 1);
  55
  56     /* Video track */
  57     mux_data      = calloc(1, sizeof( hb_mux_data_t ) );
  58     job->mux_data = mux_data;
  59
  60     track->trackType = MK_TRACK_VIDEO;
  61     track->flagDefault = 1;
  62     track->flagEnabled = 1;
  63     switch (job->vcodec)
  64     {
  65         case HB_VCODEC_X264:
  66             track->codecID = MK_VCODEC_MP4AVC;
  67             /* Taken from x264 muxers.c */
  68             avcC_len = 5 + 1 + 2 + job->config.h264.sps_length + 1 + 2 + job->config.h264.pps_length;
  69             avcC = malloc(avcC_len);
  70             if (avcC == NULL)
  71                 return -1;
  72
  73             avcC[0] = 1;
  74             avcC[1] = job->config.h264.sps[1];      /* AVCProfileIndication */
  75             avcC[2] = job->config.h264.sps[2];      /* profile_compat */
  76             avcC[3] = job->config.h264.sps[3];      /* AVCLevelIndication */
  77             avcC[4] = 0xff; // nalu size length is four bytes
  78             avcC[5] = 0xe1; // one sps
  79
  80             avcC[6] = job->config.h264.sps_length >> 8;
  81             avcC[7] = job->config.h264.sps_length;
  82
  83             memcpy(avcC+8, job->config.h264.sps, job->config.h264.sps_length);
  84
  85             avcC[8+job->config.h264.sps_length] = 1; // one pps
  86             avcC[9+job->config.h264.sps_length] = job->config.h264.pps_length >> 8;
  87             avcC[10+job->config.h264.sps_length] = job->config.h264.pps_length;
  88
  89             memcpy( avcC+11+job->config.h264.sps_length, job->config.h264.pps, job->config.h264.pps_length );
  90             track->codecPrivate = avcC;
  91             track->codecPrivateSize = avcC_len;
  92             if (job->areBframes)
  93                 track->minCache = 1;
  94             break;
  95         case HB_VCODEC_XVID:
  96         case HB_VCODEC_FFMPEG:
  97             track->codecID = MK_VCODEC_MP4ASP;
  98             track->codecPrivate = job->config.mpeg4.bytes;
  99             track->codecPrivateSize = job->config.mpeg4.length;
 100             break;
 101         default:
 102             *job->die = 1;
 103             hb_error("muxmkv: Unknown video codec: %x", job->vcodec);
 104             return 0;
 105     }
 106
 107     track->video.pixelWidth = job->width;
 108     track->video.pixelHeight = job->height;
 109     track->video.displayHeight = job->height;
 110     if(job->pixel_ratio)
 111     {
 112         track->video.displayWidth = job->width * ((double)job->pixel_aspect_width / (double)job->pixel_aspect_height);
 113     }
 114     else
 115     {
 116         track->video.displayWidth = job->width;
 117     }
 118
 119
 120     track->defaultDuration = (int64_t)(((float)job->vrate_base / (float)job->vrate) * 1000000000);
 121
 122     mux_data->track = mk_createTrack(m->file, track);
 123
 124     memset(track, 0, sizeof(mk_TrackConfig));
 125
 126     /* add the audio tracks */
 127     for( i = 0; i < hb_list_count( title->list_audio ); i++ )
 128     {
 129         audio = hb_list_item( title->list_audio, i );
 130         mux_data = malloc( sizeof( hb_mux_data_t ) );
 131         audio->mux_data = mux_data;
 132
 133         switch (job->acodec)
 134         {
 135             case HB_ACODEC_AC3:
 136                 track->codecPrivate = NULL;
 137                 track->codecPrivateSize = 0;
 138                 track->codecID = MK_ACODEC_AC3;
 139                 break;
 140             case HB_ACODEC_LAME:
 141                 track->codecPrivate = NULL;
 142                 track->codecPrivateSize = 0;
 143                 track->codecID = MK_ACODEC_MP3;
 144                 break;
 145             case HB_ACODEC_VORBIS:
 146                 {
 147                     int i;
 148                     uint64_t cp_size = 0;
 149                     track->codecID = MK_ACODEC_VORBIS;
 150                     uint64_t  header_sizes[3];
 151                     for (i = 0; i < 3; ++i)
 152                     {
 153                         ogg_headers[i] = (ogg_packet *)audio->config.vorbis.headers[i];
 154                         ogg_headers[i]->packet = (unsigned char *)&audio->config.vorbis.headers[i] + sizeof( ogg_packet );
 155                         header_sizes[i] = ogg_headers[i]->bytes;
 156                     }
 157                     track->codecPrivate = mk_laceXiph(header_sizes, 2, &cp_size);
 158                     track->codecPrivate = realloc(track->codecPrivate, cp_size + ogg_headers[0]->bytes + ogg_headers[1]->bytes + ogg_headers[2]->bytes);
 159                     for(i = 0; i < 3; ++i)
 160                     {
 161                         memcpy(track->codecPrivate + cp_size, ogg_headers[i]->packet, ogg_headers[i]->bytes);
 162                         cp_size += ogg_headers[i]->bytes;
 163                     }
 164                     track->codecPrivateSize = cp_size;
 165                 }
 166                 break;
 167             case HB_ACODEC_FAAC:
 168                 track->codecPrivate = audio->config.aac.bytes;
 169                 track->codecPrivateSize = audio->config.aac.length;
 170                 track->codecID = MK_ACODEC_AAC;
 171                 break;
 172             default:
 173                 *job->die = 1;
 174                 hb_error("muxmkv: Unknown audio codec: %x", job->acodec);
 175                 return 0;
 176         }
 177
 178         if (default_track_flag)
 179         {
 180             track->flagDefault = 1;
 181             default_track_flag = 0;
 182         }
 183         track->flagEnabled = 1;
 184         track->trackType = MK_TRACK_AUDIO;
 185         track->language = audio->iso639_2;
 186         track->audio.samplingFreq = (float)job->arate;
 187         track->audio.channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->amixdown);
 188 //        track->defaultDuration = job->arate * 1000;
 189         mux_data->track = mk_createTrack(m->file, track);
 190         if (job->acodec == HB_ACODEC_VORBIS && track->codecPrivate != NULL)
 191           free(track->codecPrivate);
 192     }
 193
 194     if( mk_writeHeader( m->file, "HandBrake " HB_VERSION) < 0 )
 195     {
 196         hb_error( "Failed to write to output file, disk full?");
 197         *job->die = 1;
 198     }
 199     if (track != NULL)
 200         free(track);
 201     if (avcC != NULL)
 202         free(avcC);
 203
 204     return 0;
 205 }
 206
 207 static int MKVMux( hb_mux_object_t * m, hb_mux_data_t * mux_data,
 208                    hb_buffer_t * buf )
 209 {
 210     hb_job_t * job = m->job;
 211     hb_title_t * title = job->title;
 212     uint64_t   timecode = 0;
 213     hb_chapter_t *chapter_data;
 214     char tmp_buffer[1024];
 215     char *string = tmp_buffer;
 216     if (mux_data == job->mux_data)
 217     {
 218         /* Video */
 219         if ((job->vcodec == HB_VCODEC_X264) && (buf->frametype & HB_FRAME_REF))
 220         {
 221             timecode = (buf->start + (buf->renderOffset - 1000000)) * TIMECODE_SCALE;
 222         }
 223         else
 224         {
 225             timecode = buf->start * TIMECODE_SCALE;
 226         }
 227
 228         if (job->chapter_markers && (buf->new_chap || timecode == 0))
 229         {
 230             /* Make sure we're not writing a chapter that has 0 length */
 231             if (mux_data->prev_chapter_tc != timecode)
 232             {
 233                 chapter_data = hb_list_item( title->list_chapter, mux_data->current_chapter++ );
 234                 tmp_buffer[0] = '\0';
 235
 236                 if( chapter_data != NULL )
 237                 {
 238                     string = chapter_data->title;
 239                 }
 240
 241                 if( strlen(string) == 0 || strlen(string) >= 1024 )
 242                 {
 243                     snprintf( tmp_buffer, 1023, "Chapter %02i", mux_data->current_chapter );
 244                     string = tmp_buffer;
 245                 }
 246                 mk_createChapterSimple(m->file, mux_data->prev_chapter_tc, mux_data->prev_chapter_tc, string);
 247             }
 248             mux_data->prev_chapter_tc = timecode;
 249         }
 250     }
 251     else
 252     {
 253         /* Audio */
 254         timecode = buf->start * TIMECODE_SCALE;
 255         if (job->acodec == HB_ACODEC_VORBIS)
 256         {
 257             /* ughhh, vorbis is a pain :( */
 258             ogg_packet  *op;
 259
 260             op = (ogg_packet *)buf->data;
 261             op->packet = buf->data + sizeof( ogg_packet );
 262             mk_startFrame(m->file, mux_data->track);
 263             mk_addFrameData(m->file, mux_data->track, op->packet, op->bytes);
 264             mk_setFrameFlags(m->file, mux_data->track, timecode, 1);
 265             return 0;
 266         }
 267     }
 268
 269     if( mk_startFrame(m->file, mux_data->track) < 0)
 270     {
 271         hb_error( "Failed to write start frame to output file, Disk Full?" );
 272         *job->die = 1;
 273     }
 274     mk_addFrameData(m->file, mux_data->track, buf->data, buf->size);
 275     mk_setFrameFlags(m->file, mux_data->track, timecode,
 276                      ((job->vcodec == HB_VCODEC_X264 && mux_data == job->mux_data) ? (buf->frametype == HB_FRAME_IDR) : ((buf->frametype & HB_FRAME_KEY) != 0)) );
 277     return 0;
 278 }
 279
 280 static int MKVEnd( hb_mux_object_t * m )
 281 {
 282     hb_job_t  *job = m->job;
 283     hb_mux_data_t *mux_data = job->mux_data;
 284     hb_title_t  *title = job->title;
 285     hb_chapter_t *chapter_data = hb_list_item( title->list_chapter, mux_data->current_chapter++ );
 286     char tmp_buffer[1024];
 287     char *string = tmp_buffer;
 288
 289     if(job->chapter_markers)
 290     {
 291         tmp_buffer[0] = '\0';
 292
 293         if( chapter_data != NULL )
 294         {
 295             string = chapter_data->title;
 296         }
 297
 298         if( strlen(string) == 0 || strlen(string) >= 1024 )
 299         {
 300             snprintf( tmp_buffer, 1023, "Chapter %02i", mux_data->current_chapter );
 301             string = tmp_buffer;
 302         }
 303         mk_createChapterSimple(m->file, mux_data->prev_chapter_tc, mux_data->prev_chapter_tc, string);
 304     }
 305
 306     if( mk_close(m->file) < 0 )
 307     {
 308         hb_error( "Failed to flush the last frame and close the output file, Disk Full?" );
 309         *job->die = 1;
 310     }
 311
 312     // TODO: Free what we alloc'd
 313
 314     return 0;
 315 }
 316
 317 hb_mux_object_t * hb_mux_mkv_init( hb_job_t * job )
 318 {
 319     hb_mux_object_t * m = calloc( sizeof( hb_mux_object_t ), 1 );
 320     m->init      = MKVInit;
 321     m->mux       = MKVMux;
 322     m->end       = MKVEnd;
 323     m->job       = job;
 324     return m;
 325 }