void LSMASHVideoSource::get_video_track( const char *source, uint32_t track_number, int threads, IScriptEnvironment *env )
{
uint32_t number_of_tracks = open_file( source, env );
if( track_number && track_number > number_of_tracks )
env->ThrowError( "LSMASHVideoSource: the number of tracks equals %I32u.", number_of_tracks );
/* L-SMASH */
uint32_t i;
lsmash_media_parameters_t media_param;
if( track_number == 0 )
{
/* Get the first video track. */
for( i = 1; i <= number_of_tracks; i++ )
{
vdh.track_ID = lsmash_get_track_ID( vdh.root, i );
if( vdh.track_ID == 0 )
env->ThrowError( "LSMASHVideoSource: failed to find video track." );
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( vdh.root, vdh.track_ID, &media_param ) )
env->ThrowError( "LSMASHVideoSource: failed to get media parameters." );
if( media_param.handler_type == ISOM_MEDIA_HANDLER_TYPE_VIDEO_TRACK )
break;
}
if( i > number_of_tracks )
env->ThrowError( "LSMASHVideoSource: failed to find video track." );
}
else
{
/* Get the desired video track. */
vdh.track_ID = lsmash_get_track_ID( vdh.root, track_number );
if( vdh.track_ID == 0 )
env->ThrowError( "LSMASHVideoSource: failed to find video track." );
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( vdh.root, vdh.track_ID, &media_param ) )
env->ThrowError( "LSMASHVideoSource: failed to get media parameters." );
if( media_param.handler_type != ISOM_MEDIA_HANDLER_TYPE_VIDEO_TRACK )
env->ThrowError( "LSMASHVideoSource: the track you specified is not a video track." );
}
if( lsmash_construct_timeline( vdh.root, vdh.track_ID ) )
env->ThrowError( "LSMASHVideoSource: failed to get construct timeline." );
if( get_summaries( vdh.root, vdh.track_ID, &vdh.config ) )
env->ThrowError( "LSMASHVideoSource: failed to get summaries." );
vi.num_frames = lsmash_get_sample_count_in_media_timeline( vdh.root, vdh.track_ID );
setup_timestamp_info( &vdh, &vi, media_param.timescale, env );
/* libavformat */
for( i = 0; i < format_ctx->nb_streams && format_ctx->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO; i++ );
if( i == format_ctx->nb_streams )
env->ThrowError( "LSMASHVideoSource: failed to find stream by libavformat." );
/* libavcodec */
AVStream *stream = format_ctx->streams[i];
AVCodecContext *ctx = stream->codec;
vdh.config.ctx = ctx;
AVCodec *codec = avcodec_find_decoder( ctx->codec_id );
if( !codec )
env->ThrowError( "LSMASHVideoSource: failed to find %s decoder.", codec->name );
ctx->thread_count = threads;
if( avcodec_open2( ctx, codec, NULL ) < 0 )
env->ThrowError( "LSMASHVideoSource: failed to avcodec_open2." );
}
static uint32_t libavsmash_video_fetch_media_timescale
(
libavsmash_video_decode_handler_t *vdhp
)
{
if( !vdhp )
return 0;
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( vdhp->root, vdhp->track_id, &media_param ) < 0 )
return 0;
vdhp->media_timescale = media_param.timescale;
return vdhp->media_timescale;
}
int main( int argc, char *argv[] )
{
if ( argc < 2 )
{
display_help();
return -1;
}
else if( !strcasecmp( argv[1], "-h" ) || !strcasecmp( argv[1], "--help" ) )
{
display_help();
return 0;
}
else if( !strcasecmp( argv[1], "-v" ) || !strcasecmp( argv[1], "--version" ) )
{
display_version();
return 0;
}
int dump_box = 1;
int chapter = 0;
char *filename;
lsmash_get_mainargs( &argc, &argv );
if( argc > 2 )
{
if( !strcasecmp( argv[1], "--box" ) )
DO_NOTHING;
else if( !strcasecmp( argv[1], "--chapter" ) )
chapter = 1;
else if( !strcasecmp( argv[1], "--timestamp" ) )
dump_box = 0;
else
{
display_help();
return -1;
}
filename = argv[2];
}
else
{
filename = argv[1];
}
/* Open the input file. */
lsmash_root_t *root = lsmash_create_root();
if( !root )
{
fprintf( stderr, "Failed to create a ROOT.\n" );
return -1;
}
lsmash_file_parameters_t file_param = { 0 };
if( lsmash_open_file( filename, 1, &file_param ) < 0 )
return BOXDUMPER_ERR( "Failed to open an input file.\n" );
if( dump_box )
file_param.mode |= LSMASH_FILE_MODE_DUMP;
lsmash_file_t *file = lsmash_set_file( root, &file_param );
if( !file )
return BOXDUMPER_ERR( "Failed to add a file into a ROOT.\n" );
if( lsmash_read_file( file, &file_param ) < 0 )
return BOXDUMPER_ERR( "Failed to read a file\n" );
/* Dump the input file. */
if( chapter )
{
if( lsmash_print_chapter_list( root ) )
return BOXDUMPER_ERR( "Failed to extract chapter.\n" );
}
else if( dump_box )
{
if( lsmash_print_movie( root, "-" ) )
return BOXDUMPER_ERR( "Failed to dump box structure.\n" );
}
else
{
lsmash_movie_parameters_t movie_param;
lsmash_initialize_movie_parameters( &movie_param );
lsmash_get_movie_parameters( root, &movie_param );
uint32_t num_tracks = movie_param.number_of_tracks;
for( uint32_t track_number = 1; track_number <= num_tracks; track_number++ )
{
uint32_t track_ID = lsmash_get_track_ID( root, track_number );
if( !track_ID )
return BOXDUMPER_ERR( "Failed to get track_ID.\n" );
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( root, track_ID, &media_param ) )
return BOXDUMPER_ERR( "Failed to get media parameters.\n" );
if( lsmash_construct_timeline( root, track_ID ) )
return BOXDUMPER_ERR( "Failed to construct timeline.\n" );
uint32_t timeline_shift;
if( lsmash_get_composition_to_decode_shift_from_media_timeline( root, track_ID, &timeline_shift ) )
return BOXDUMPER_ERR( "Failed to get timestamps.\n" );
lsmash_media_ts_list_t ts_list;
if( lsmash_get_media_timestamps( root, track_ID, &ts_list ) )
return BOXDUMPER_ERR( "Failed to get timestamps.\n" );
fprintf( stdout, "track_ID: %"PRIu32"\n", track_ID );
fprintf( stdout, "Media timescale: %"PRIu32"\n", media_param.timescale );
lsmash_media_ts_t *ts_array = ts_list.timestamp;
if( !ts_array )
{
fprintf( stdout, "\n" );
continue;
}
for( uint32_t i = 0; i < ts_list.sample_count; i++ )
fprintf( stdout, "DTS = %"PRIu64", CTS = %"PRIu64"\n", ts_array[i].dts, ts_array[i].cts + timeline_shift );
lsmash_free( ts_array );
fprintf( stdout, "\n" );
}
}
lsmash_destroy_root( root );
return 0;
}
static int set_param( hnd_t handle, x264_param_t *p_param )
{
mp4_hnd_t *p_mp4 = handle;
uint64_t i_media_timescale;
p_mp4->i_delay_frames = p_param->i_bframe ? (p_param->i_bframe_pyramid ? 2 : 1) : 0;
p_mp4->i_dts_compress_multiplier = p_mp4->b_dts_compress * p_mp4->i_delay_frames + 1;
i_media_timescale = (uint64_t)p_param->i_timebase_den * p_mp4->i_dts_compress_multiplier;
p_mp4->i_time_inc = (uint64_t)p_param->i_timebase_num * p_mp4->i_dts_compress_multiplier;
MP4_FAIL_IF_ERR( i_media_timescale > UINT32_MAX, "MP4 media timescale %"PRIu64" exceeds maximum\n", i_media_timescale );
/* Select brands. */
lsmash_brand_type brands[6] = { 0 };
uint32_t brand_count = 0;
brands[brand_count++] = ISOM_BRAND_TYPE_MP42;
brands[brand_count++] = ISOM_BRAND_TYPE_MP41;
brands[brand_count++] = ISOM_BRAND_TYPE_ISOM;
if( p_mp4->b_use_recovery )
{
brands[brand_count++] = ISOM_BRAND_TYPE_AVC1; /* sdtp, sgpd, sbgp and visual roll recovery grouping */
if( p_param->b_open_gop )
brands[brand_count++] = ISOM_BRAND_TYPE_ISO6; /* cslg and visual random access grouping */
}
/* Set file */
lsmash_file_parameters_t *file_param = &p_mp4->file_param;
file_param->major_brand = brands[0];
file_param->brands = brands;
file_param->brand_count = brand_count;
file_param->minor_version = 0;
MP4_FAIL_IF_ERR( !lsmash_set_file( p_mp4->p_root, file_param ), "failed to add an output file into a ROOT.\n" );
/* Set movie parameters. */
lsmash_movie_parameters_t movie_param;
lsmash_initialize_movie_parameters( &movie_param );
MP4_FAIL_IF_ERR( lsmash_set_movie_parameters( p_mp4->p_root, &movie_param ),
"failed to set movie parameters.\n" );
p_mp4->i_movie_timescale = lsmash_get_movie_timescale( p_mp4->p_root );
MP4_FAIL_IF_ERR( !p_mp4->i_movie_timescale, "movie timescale is broken.\n" );
/* Create a video track. */
p_mp4->i_track = lsmash_create_track( p_mp4->p_root, ISOM_MEDIA_HANDLER_TYPE_VIDEO_TRACK );
MP4_FAIL_IF_ERR( !p_mp4->i_track, "failed to create a video track.\n" );
p_mp4->summary->width = p_param->i_width;
p_mp4->summary->height = p_param->i_height;
uint32_t i_display_width = p_param->i_width << 16;
uint32_t i_display_height = p_param->i_height << 16;
if( p_param->vui.i_sar_width && p_param->vui.i_sar_height )
{
double sar = (double)p_param->vui.i_sar_width / p_param->vui.i_sar_height;
if( sar > 1.0 )
i_display_width *= sar;
else
i_display_height /= sar;
p_mp4->summary->par_h = p_param->vui.i_sar_width;
p_mp4->summary->par_v = p_param->vui.i_sar_height;
}
p_mp4->summary->color.primaries_index = p_param->vui.i_colorprim;
p_mp4->summary->color.transfer_index = p_param->vui.i_transfer;
p_mp4->summary->color.matrix_index = p_param->vui.i_colmatrix >= 0 ? p_param->vui.i_colmatrix : ISOM_MATRIX_INDEX_UNSPECIFIED;
p_mp4->summary->color.full_range = p_param->vui.b_fullrange >= 0 ? p_param->vui.b_fullrange : 0;
/* Set video track parameters. */
lsmash_track_parameters_t track_param;
lsmash_initialize_track_parameters( &track_param );
lsmash_track_mode track_mode = ISOM_TRACK_ENABLED | ISOM_TRACK_IN_MOVIE | ISOM_TRACK_IN_PREVIEW;
track_param.mode = track_mode;
track_param.display_width = i_display_width;
track_param.display_height = i_display_height;
MP4_FAIL_IF_ERR( lsmash_set_track_parameters( p_mp4->p_root, p_mp4->i_track, &track_param ),
"failed to set track parameters for video.\n" );
/* Set video media parameters. */
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
media_param.timescale = i_media_timescale;
media_param.media_handler_name = "L-SMASH Video Media Handler";
if( p_mp4->b_use_recovery )
{
media_param.roll_grouping = p_param->b_intra_refresh;
media_param.rap_grouping = p_param->b_open_gop;
}
MP4_FAIL_IF_ERR( lsmash_set_media_parameters( p_mp4->p_root, p_mp4->i_track, &media_param ),
"failed to set media parameters for video.\n" );
p_mp4->i_video_timescale = lsmash_get_media_timescale( p_mp4->p_root, p_mp4->i_track );
MP4_FAIL_IF_ERR( !p_mp4->i_video_timescale, "media timescale for video is broken.\n" );
return 0;
}
void LSMASHAudioSource::get_audio_track( const char *source, uint32_t track_number, bool skip_priming, IScriptEnvironment *env )
{
uint32_t number_of_tracks = open_file( source, env );
if( track_number && track_number > number_of_tracks )
env->ThrowError( "LSMASHAudioSource: the number of tracks equals %I32u.", number_of_tracks );
/* L-SMASH */
uint32_t i;
lsmash_media_parameters_t media_param;
if( track_number == 0 )
{
/* Get the first audio track. */
for( i = 1; i <= number_of_tracks; i++ )
{
adh.track_ID = lsmash_get_track_ID( adh.root, i );
if( adh.track_ID == 0 )
env->ThrowError( "LSMASHAudioSource: failed to find audio track." );
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( adh.root, adh.track_ID, &media_param ) )
env->ThrowError( "LSMASHAudioSource: failed to get media parameters." );
if( media_param.handler_type == ISOM_MEDIA_HANDLER_TYPE_AUDIO_TRACK )
break;
}
if( i > number_of_tracks )
env->ThrowError( "LSMASHAudioSource: failed to find audio track." );
}
else
{
/* Get the desired audio track. */
adh.track_ID = lsmash_get_track_ID( adh.root, track_number );
if( adh.track_ID == 0 )
env->ThrowError( "LSMASHAudioSource: failed to find audio track." );
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( adh.root, adh.track_ID, &media_param ) )
env->ThrowError( "LSMASHAudioSource: failed to get media parameters." );
if( media_param.handler_type != ISOM_MEDIA_HANDLER_TYPE_AUDIO_TRACK )
env->ThrowError( "LSMASHAudioSource: the track you specified is not an audio track." );
}
if( lsmash_construct_timeline( adh.root, adh.track_ID ) )
env->ThrowError( "LSMASHAudioSource: failed to get construct timeline." );
if( get_summaries( adh.root, adh.track_ID, &adh.config ) )
env->ThrowError( "LSMASHAudioSource: failed to get summaries." );
adh.frame_count = lsmash_get_sample_count_in_media_timeline( adh.root, adh.track_ID );
vi.num_audio_samples = lsmash_get_media_duration_from_media_timeline( adh.root, adh.track_ID );
if( skip_priming )
{
uint32_t itunes_metadata_count = lsmash_count_itunes_metadata( adh.root );
for( i = 1; i <= itunes_metadata_count; i++ )
{
lsmash_itunes_metadata_t metadata;
if( lsmash_get_itunes_metadata( adh.root, i, &metadata ) < 0 )
continue;
if( metadata.item != ITUNES_METADATA_ITEM_CUSTOM
|| (metadata.type != ITUNES_METADATA_TYPE_STRING && metadata.type != ITUNES_METADATA_TYPE_BINARY)
|| !metadata.meaning || !metadata.name
|| memcmp( "com.apple.iTunes", metadata.meaning, strlen( metadata.meaning ) )
|| memcmp( "iTunSMPB", metadata.name, strlen( metadata.name ) ) )
{
lsmash_cleanup_itunes_metadata( &metadata );
continue;
}
char *value = NULL;
if( metadata.type == ITUNES_METADATA_TYPE_STRING )
{
int length = strlen( metadata.value.string );
if( length >= 116 )
value = duplicate_as_string( metadata.value.string, length );
}
else /* metadata.type == ITUNES_METADATA_TYPE_BINARY */
{
if( metadata.value.binary.size >= 116 )
value = duplicate_as_string( metadata.value.binary.data, metadata.value.binary.size );
}
lsmash_cleanup_itunes_metadata( &metadata );
if( !value )
continue;
uint32_t dummy[9];
uint32_t priming_samples;
uint32_t padding;
uint64_t duration;
if( 12 != sscanf( value, " %I32x %I32x %I32x %I64x %I32x %I32x %I32x %I32x %I32x %I32x %I32x %I32x",
&dummy[0], &priming_samples, &padding, &duration, &dummy[1], &dummy[2],
&dummy[3], &dummy[4], &dummy[5], &dummy[6], &dummy[7], &dummy[8] ) )
{
delete [] value;
continue;
}
delete [] value;
adh.implicit_preroll = 1;
aoh.skip_decoded_samples = priming_samples;
vi.num_audio_samples = duration + priming_samples;
break;
}
if( aoh.skip_decoded_samples == 0 )
{
uint32_t ctd_shift;
if( lsmash_get_composition_to_decode_shift_from_media_timeline( adh.root, adh.track_ID, &ctd_shift ) )
env->ThrowError( "LSMASHAudioSource: failed to get the timeline shift." );
aoh.skip_decoded_samples = ctd_shift + get_start_time( adh.root, adh.track_ID );
}
}
/* libavformat */
for( i = 0; i < format_ctx->nb_streams && format_ctx->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO; i++ );
if( i == format_ctx->nb_streams )
env->ThrowError( "LSMASHAudioSource: failed to find stream by libavformat." );
/* libavcodec */
AVStream *stream = format_ctx->streams[i];
AVCodecContext *ctx = stream->codec;
adh.config.ctx = ctx;
AVCodec *codec = avcodec_find_decoder( ctx->codec_id );
if( !codec )
env->ThrowError( "LSMASHAudioSource: failed to find %s decoder.", codec->name );
ctx->thread_count = 0;
if( avcodec_open2( ctx, codec, NULL ) < 0 )
env->ThrowError( "LSMASHAudioSource: failed to avcodec_open2." );
}
bool fcMP4Muxer::mux(const Params ¶ms)
{
lsmash_root_t *root;
lsmash_file_parameters_t mp4_stream;
lsmash_file_parameters_t h264_stream;
lsmash_brand_type major_brand = ISOM_BRAND_TYPE_MP42;
lsmash_brand_type compatible_brands[2] = { ISOM_BRAND_TYPE_MP42, ISOM_BRAND_TYPE_ISOM };
uint32_t fps_num = params.frame_rate;
uint32_t fps_den = 1;
// 出力 mp4
root = lsmash_create_root();
if (lsmash_open_file(params.out_mp4_path, 0, &mp4_stream) != 0) {
return false;
}
mp4_stream.major_brand = major_brand;
mp4_stream.brands = compatible_brands;
mp4_stream.brand_count = sizeof(compatible_brands) / sizeof(compatible_brands[0]);
mp4_stream.minor_version = 0;
lsmash_set_file(root, &mp4_stream);
lsmash_movie_parameters_t movie_param;
lsmash_initialize_movie_parameters(&movie_param);
lsmash_set_movie_parameters(root, &movie_param);
int track_number = 1;
MP4TrackData track_data[2];
int num_track_data = 0;
if (params.in_h264_path) {
importer_t *h264_importer = lsmash_importer_open(params.in_h264_path, "H.264");
if (h264_importer == nullptr) { return false; }
int h264_track_id = lsmash_create_track(root, ISOM_MEDIA_HANDLER_TYPE_VIDEO_TRACK);
lsmash_track_parameters_t track_param;
lsmash_initialize_track_parameters(&track_param);
(int&)track_param.mode = ISOM_TRACK_IN_MOVIE | ISOM_TRACK_IN_PREVIEW;
int sample_entry = 0;
lsmash_summary_t *summary = lsmash_duplicate_summary(h264_importer, track_number);
auto video_summary = (lsmash_video_summary_t*)summary;
track_param.display_width = video_summary->width << 16;
track_param.display_height = video_summary->height << 16;
lsmash_set_track_parameters(root, h264_track_id, &track_param);
sample_entry = lsmash_add_sample_entry(root, h264_track_id, summary);
auto& td = track_data[num_track_data++];
td.importer = h264_importer;
td.summary = summary;
td.sample_entry = sample_entry;
td.track_number = track_number;
td.track_id = h264_track_id;
td.timescale = video_summary->timescale;
td.timebase = video_summary->timebase;
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters(&media_param);
media_param.timescale = td.timescale;
lsmash_set_media_parameters(root, h264_track_id, &media_param);
}
if (params.in_aac_path) {
importer_t *aac_importer = lsmash_importer_open(params.in_aac_path, "adts");
if (aac_importer == nullptr) { return false; }
int aac_track_id = lsmash_create_track(root, ISOM_MEDIA_HANDLER_TYPE_AUDIO_TRACK);
lsmash_track_parameters_t track_param;
lsmash_initialize_track_parameters(&track_param);
(int&)track_param.mode = ISOM_TRACK_IN_MOVIE | ISOM_TRACK_IN_PREVIEW;
int sample_entry = 0;
lsmash_summary_t *summary = lsmash_duplicate_summary(aac_importer, track_number);
auto audio_summary = (lsmash_audio_summary_t*)summary;
lsmash_set_track_parameters(root, aac_track_id, &track_param);
sample_entry = lsmash_add_sample_entry(root, aac_track_id, summary);
auto& td = track_data[num_track_data++];
td.importer = aac_importer;
td.summary = summary;
td.sample_entry = sample_entry;
td.track_number = track_number;
td.track_id = aac_track_id;
td.timescale = audio_summary->frequency;
td.timebase = 1;
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters(&media_param);
media_param.timescale = td.timescale;
lsmash_set_media_parameters(root, aac_track_id, &media_param);
}
double largest_dts = 0.0;
uint32_t num_consecutive_sample_skip = 0;
for (int ti = 0;;) {
auto &td = track_data[ti];
if (!td.sample) {
int ret = lsmash_importer_get_access_unit(td.importer, td.track_number, &td.sample);
if (ret <= -1) // error
{
lsmash_delete_sample(td.sample);
break;
}
else if (ret == 1) /* a change of stream's properties */
{
lsmash_cleanup_summary(td.summary);
td.summary = lsmash_duplicate_summary(td.importer, td.track_number);
td.sample_entry = lsmash_add_sample_entry(root, td.track_id, td.summary);
if (!td.sample_entry) { break; }
}
else if (ret == 2) /* EOF */
{
lsmash_delete_sample(td.sample);
break;
}
if (td.sample)
{
td.sample->index = td.sample_entry;
td.sample->dts *= td.timebase;
td.sample->cts *= td.timebase;
td.dts = (double)td.sample->dts / td.timescale;
}
}
if (td.sample) {
if (td.dts <= largest_dts || num_consecutive_sample_skip == num_track_data)
{
uint64_t sample_size = td.sample->length;
uint64_t sample_dts = td.sample->dts;
uint64_t sample_cts = td.sample->cts;
if (lsmash_append_sample(root, td.track_id, td.sample)) {
return false;
}
td.prev_dts = sample_dts;
td.sample = nullptr;
largest_dts = std::max<double>(largest_dts, td.dts);
num_consecutive_sample_skip = 0;
}
else {
// skip
++num_consecutive_sample_skip;
}
}
ti = (ti + 1) % num_track_data;
}
for (int i = 0; i < num_track_data; ++i) {
lsmash_flush_pooled_samples(root, track_data[i].track_id, fps_den);
lsmash_cleanup_summary(track_data[i].summary);
lsmash_importer_close(track_data[i].importer);
}
lsmash_finish_movie(root, nullptr);
lsmash_close_file(&mp4_stream);
lsmash_destroy_root(root);
return true;
}
int lsmash_create_reference_chapter_track( lsmash_root_t *root, uint32_t track_ID, char *file_name )
{
if( isom_check_initializer_present( root ) < 0 )
goto error_message;
lsmash_file_t *file = root->file;
if( !file
|| !file->moov
|| !file->moov->mvhd )
goto error_message;
if( file->forbid_tref || (!file->qt_compatible && !file->itunes_movie) )
{
lsmash_log( NULL, LSMASH_LOG_ERROR, "reference chapter is not available for this file.\n" );
goto error_message;
}
FILE *chapter = NULL; /* shut up 'uninitialized' warning */
/* Create a Track Reference Box. */
isom_trak_t *trak = isom_get_trak( file, track_ID );
if( !trak )
{
lsmash_log( NULL, LSMASH_LOG_ERROR, "the specified track ID to apply the chapter doesn't exist.\n" );
goto error_message;
}
if( !trak->tref && !isom_add_tref( trak ) )
goto error_message;
/* Create a track_ID for a new chapter track. */
uint32_t *id = (uint32_t *)lsmash_malloc( sizeof(uint32_t) );
if( !id )
goto error_message;
uint32_t chapter_track_ID = *id = file->moov->mvhd->next_track_ID;
/* Create a Track Reference Type Box. */
isom_tref_type_t *chap = isom_add_track_reference_type( trak->tref, QT_TREF_TYPE_CHAP );
if( !chap )
{
lsmash_free( id );
goto error_message;
}
chap->ref_count = 1;
chap->track_ID = id;
/* Create a reference chapter track. */
if( chapter_track_ID != lsmash_create_track( root, ISOM_MEDIA_HANDLER_TYPE_TEXT_TRACK ) )
goto error_message;
/* Set track parameters. */
lsmash_track_parameters_t track_param;
lsmash_initialize_track_parameters( &track_param );
track_param.mode = ISOM_TRACK_IN_MOVIE | ISOM_TRACK_IN_PREVIEW;
if( lsmash_set_track_parameters( root, chapter_track_ID, &track_param ) < 0 )
goto fail;
/* Set media parameters. */
uint64_t media_timescale = lsmash_get_media_timescale( root, track_ID );
if( !media_timescale )
goto fail;
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
media_param.timescale = media_timescale;
media_param.ISO_language = file->max_3gpp_version >= 6 || file->itunes_movie ? ISOM_LANGUAGE_CODE_UNDEFINED : 0;
media_param.MAC_language = 0;
if( lsmash_set_media_parameters( root, chapter_track_ID, &media_param ) < 0 )
goto fail;
/* Create a sample description. */
lsmash_codec_type_t sample_type = file->max_3gpp_version >= 6 || file->itunes_movie
? ISOM_CODEC_TYPE_TX3G_TEXT
: QT_CODEC_TYPE_TEXT_TEXT;
lsmash_summary_t summary = { .sample_type = sample_type, .data_ref_index = 1 };
uint32_t sample_entry = lsmash_add_sample_entry( root, chapter_track_ID, &summary );
if( !sample_entry )
goto fail;
/* Check each line format. */
fn_get_chapter_data fnc = isom_check_chap_line( file_name );
if( !fnc )
goto fail;
/* Open chapter format file. */
chapter = lsmash_fopen( file_name, "rb" );
if( !chapter )
{
lsmash_log( NULL, LSMASH_LOG_ERROR, "failed to open the chapter file \"%s\".\n", file_name );
goto fail;
}
/* Parse the file and write text samples. */
isom_chapter_entry_t data;
while( !fnc( chapter, &data ) )
{
/* set start_time */
data.start_time = data.start_time * 1e-9 * media_timescale + 0.5;
/* write a text sample here */
int is_qt_text = lsmash_check_codec_type_identical( sample_type, QT_CODEC_TYPE_TEXT_TEXT );
uint16_t name_length = strlen( data.chapter_name );
lsmash_sample_t *sample = lsmash_create_sample( 2 + name_length + 12 * is_qt_text );
if( !sample )
{
lsmash_free( data.chapter_name );
goto fail;
}
sample->data[0] = (name_length >> 8) & 0xff;
sample->data[1] = name_length & 0xff;
memcpy( sample->data + 2, data.chapter_name, name_length );
if( is_qt_text )
{
/* QuickTime Player requires Text Encoding Attribute Box ('encd') if media language is ISO language codes : undefined.
* Also this box can avoid garbling if the QuickTime text sample is encoded by Unicode characters.
* Note: 3GPP Timed Text supports only UTF-8 or UTF-16, so this box isn't needed. */
static const uint8_t encd[12] =
{
0x00, 0x00, 0x00, 0x0C, /* size: 12 */
0x65, 0x6E, 0x63, 0x64, /* type: 'encd' */
0x00, 0x00, 0x01, 0x00 /* Unicode Encoding */
};
memcpy( sample->data + 2 + name_length, encd, 12 );
}
sample->dts = data.start_time;
sample->cts = data.start_time;
sample->prop.ra_flags = ISOM_SAMPLE_RANDOM_ACCESS_FLAG_SYNC;
sample->index = sample_entry;
if( lsmash_append_sample( root, chapter_track_ID, sample ) < 0 )
{
lsmash_free( data.chapter_name );
goto fail;
}
lsmash_freep( &data.chapter_name );
}
if( lsmash_flush_pooled_samples( root, chapter_track_ID, 0 ) < 0 )
goto fail;
isom_trak_t *chapter_trak = isom_get_trak( file, chapter_track_ID );
if( !chapter_trak )
goto fail;
fclose( chapter );
chapter_trak->is_chapter = 1;
chapter_trak->related_track_ID = track_ID;
return 0;
fail:
if( chapter )
fclose( chapter );
/* Remove chapter track reference. */
if( trak->tref->ref_list.tail )
isom_remove_box_by_itself( trak->tref->ref_list.tail->data );
if( trak->tref->ref_list.entry_count == 0 )
isom_remove_box_by_itself( trak->tref );
/* Remove the reference chapter track attached at tail of the list. */
if( file->moov->trak_list.tail )
isom_remove_box_by_itself( file->moov->trak_list.tail->data );
error_message:
lsmash_log( NULL, LSMASH_LOG_ERROR, "failed to set reference chapter.\n" );
return LSMASH_ERR_NAMELESS;
}
uint32_t lsmash_count_tyrant_chapter( lsmash_root_t *root )
{
if( isom_check_initializer_present( root ) < 0
&& root->file->initializer->moov
&& root->file->initializer->moov->udta
&& root->file->initializer->moov->udta->chpl
&& root->file->initializer->moov->udta->chpl->list )
return root->file->initializer->moov->udta->chpl->list->entry_count;
return 0;
}
char *lsmash_get_tyrant_chapter( lsmash_root_t *root, uint32_t index, double *timestamp )
{
if( isom_check_initializer_present( root ) < 0 )
return NULL;
lsmash_file_t *file = root->file->initializer;
if( !file->moov
|| !file->moov->mvhd
|| !file->moov->udta
|| !file->moov->udta->chpl )
return NULL;
isom_chpl_t *chpl = file->moov->udta->chpl;
isom_chpl_entry_t *data = (isom_chpl_entry_t *)lsmash_get_entry_data( chpl->list, index );
if( !data )
return NULL;
double timescale = chpl->version ? 10000000.0 : file->moov->mvhd->timescale;
*timestamp = data->start_time / timescale;
if( !memcmp( data->chapter_name, UTF8_BOM, UTF8_BOM_LENGTH ) )
return data->chapter_name + UTF8_BOM_LENGTH;
return data->chapter_name;
}
int lsmash_print_chapter_list( lsmash_root_t *root )
{
if( isom_check_initializer_present( root ) < 0
|| !(root->file->initializer->flags & LSMASH_FILE_MODE_READ) )
return LSMASH_ERR_FUNCTION_PARAM;
lsmash_file_t *file = root->file->initializer;
if( file->moov
&& file->moov->udta
&& file->moov->udta->chpl )
{
isom_chpl_t *chpl = file->moov->udta->chpl;
uint32_t timescale;
if( !chpl->version )
{
if( !file->moov
&& !file->moov->mvhd )
return LSMASH_ERR_NAMELESS;
timescale = file->moov->mvhd->timescale;
}
else
timescale = 10000000;
uint32_t i = 1;
for( lsmash_entry_t *entry = chpl->list->head; entry; entry = entry->next )
{
isom_chpl_entry_t *data = (isom_chpl_entry_t *)entry->data;
int64_t start_time = data->start_time / timescale;
int hh = start_time / 3600;
int mm = (start_time / 60) % 60;
int ss = start_time % 60;
int ms = ((data->start_time / (double)timescale) - hh * 3600 - mm * 60 - ss) * 1e3 + 0.5;
if( !memcmp( data->chapter_name, UTF8_BOM, UTF8_BOM_LENGTH ) ) /* detect BOM */
{
data->chapter_name += UTF8_BOM_LENGTH;
#ifdef _WIN32
if( i == 1 )
printf( UTF8_BOM ); /* add BOM on Windows */
#endif
}
printf( "CHAPTER%02"PRIu32"=%02d:%02d:%02d.%03d\n", i, hh, mm, ss, ms );
printf( "CHAPTER%02"PRIu32"NAME=%s\n", i++, data->chapter_name );
}
return 0;
}
lsmash_log( NULL, LSMASH_LOG_ERROR, "this file doesn't have a chapter list.\n" );
return LSMASH_ERR_NAMELESS;
}
int lsmash_create_reference_chapter_track( lsmash_root_t *root, uint32_t track_ID, char *file_name )
{
if( !root || !root->moov || !root->moov->mvhd || !root->moov->trak_list )
goto error_message;
if( !root->qt_compatible && !root->itunes_movie )
{
lsmash_log( LSMASH_LOG_ERROR, "reference chapter is not available for this file.\n" );
goto error_message;
}
FILE *chapter = NULL; /* shut up 'uninitialized' warning */
/* Create a Track Reference Box. */
isom_trak_entry_t *trak = isom_get_trak( root, track_ID );
if( !trak )
{
lsmash_log( LSMASH_LOG_ERROR, "the specified track ID to apply the chapter doesn't exist.\n" );
goto error_message;
}
if( isom_add_tref( trak ) )
goto error_message;
/* Create a track_ID for a new chapter track. */
uint32_t *id = (uint32_t *)malloc( sizeof(uint32_t) );
if( !id )
goto error_message;
uint32_t chapter_track_ID = *id = root->moov->mvhd->next_track_ID;
/* Create a Track Reference Type Box. */
isom_tref_type_t *chap = isom_add_track_reference_type( trak->tref, QT_TREF_TYPE_CHAP, 1, id );
if( !chap )
goto error_message; /* no need to free id */
/* Create a reference chapter track. */
if( chapter_track_ID != lsmash_create_track( root, ISOM_MEDIA_HANDLER_TYPE_TEXT_TRACK ) )
goto error_message;
/* Set track parameters. */
lsmash_track_parameters_t track_param;
lsmash_initialize_track_parameters( &track_param );
track_param.mode = ISOM_TRACK_IN_MOVIE | ISOM_TRACK_IN_PREVIEW;
if( lsmash_set_track_parameters( root, chapter_track_ID, &track_param ) )
goto fail;
/* Set media parameters. */
uint64_t media_timescale = lsmash_get_media_timescale( root, track_ID );
if( !media_timescale )
goto fail;
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
media_param.timescale = media_timescale;
media_param.ISO_language = root->max_3gpp_version >= 6 || root->itunes_movie ? ISOM_LANGUAGE_CODE_UNDEFINED : 0;
media_param.MAC_language = 0;
if( lsmash_set_media_parameters( root, chapter_track_ID, &media_param ) )
goto fail;
/* Create a sample description. */
lsmash_codec_type_t sample_type = root->max_3gpp_version >= 6 || root->itunes_movie
? ISOM_CODEC_TYPE_TX3G_TEXT
: QT_CODEC_TYPE_TEXT_TEXT;
lsmash_summary_t summary = { .sample_type = sample_type };
uint32_t sample_entry = lsmash_add_sample_entry( root, chapter_track_ID, &summary );
if( !sample_entry )
goto fail;
/* Check each line format. */
fn_get_chapter_data fnc = isom_check_chap_line( file_name );
if( !fnc )
goto fail;
/* Open chapter format file. */
chapter = fopen( file_name, "rb" );
if( !chapter )
{
lsmash_log( LSMASH_LOG_ERROR, "failed to open the chapter file \"%s\".\n", file_name );
goto fail;
}
/* Parse the file and write text samples. */
isom_chapter_entry_t data;
while( !fnc( chapter, &data ) )
{
/* set start_time */
data.start_time = data.start_time * 1e-9 * media_timescale + 0.5;
/* write a text sample here */
int is_qt_text = lsmash_check_codec_type_identical( sample_type, QT_CODEC_TYPE_TEXT_TEXT );
uint16_t name_length = strlen( data.chapter_name );
lsmash_sample_t *sample = lsmash_create_sample( 2 + name_length + 12 * is_qt_text );
if( !sample )
{
free( data.chapter_name );
goto fail;
}
sample->data[0] = (name_length >> 8) & 0xff;
sample->data[1] = name_length & 0xff;
memcpy( sample->data + 2, data.chapter_name, name_length );
if( is_qt_text )
{
/* QuickTime Player requires Text Encoding Attribute Box ('encd') if media language is ISO language codes : undefined.
* Also this box can avoid garbling if the QuickTime text sample is encoded by Unicode characters.
* Note: 3GPP Timed Text supports only UTF-8 or UTF-16, so this box isn't needed. */
static const uint8_t encd[12] =
{
0x00, 0x00, 0x00, 0x0C, /* size: 12 */
0x65, 0x6E, 0x63, 0x64, /* type: 'encd' */
0x00, 0x00, 0x01, 0x00 /* Unicode Encoding */
};
memcpy( sample->data + 2 + name_length, encd, 12 );
}
sample->dts = sample->cts = data.start_time;
sample->prop.ra_flags = ISOM_SAMPLE_RANDOM_ACCESS_FLAG_SYNC;
sample->index = sample_entry;
if( lsmash_append_sample( root, chapter_track_ID, sample ) )
{
free( data.chapter_name );
goto fail;
}
free( data.chapter_name );
data.chapter_name = NULL;
}
if( lsmash_flush_pooled_samples( root, chapter_track_ID, 0 ) )
goto fail;
isom_trak_entry_t *chapter_trak = isom_get_trak( root, chapter_track_ID );
if( !chapter_trak )
goto fail;
fclose( chapter );
chapter_trak->is_chapter = 1;
chapter_trak->related_track_ID = track_ID;
return 0;
fail:
if( chapter )
fclose( chapter );
/* Remove chapter track reference. */
lsmash_remove_entry_direct( trak->tref->ref_list, trak->tref->ref_list->tail, isom_remove_track_reference_type );
if( trak->tref->ref_list->entry_count == 0 )
isom_remove_tref( trak->tref );
/* Remove the reference chapter track attached at tail of the list. */
lsmash_remove_entry_direct( root->moov->trak_list, root->moov->trak_list->tail, isom_remove_trak );
error_message:
lsmash_log( LSMASH_LOG_ERROR, "failed to set reference chapter.\n" );
return -1;
}
int main( int argc, char *argv[] )
{
if( argc < 2 )
return print_help( -1 );
int dump_box = 1;
int chapter = 0;
char *filename;
if( argc > 2 )
{
if( !strcasecmp( argv[1], "--box" ) )
DO_NOTHING;
else if( !strcasecmp( argv[1], "--chapter" ) )
chapter = 1;
else if( !strcasecmp( argv[1], "--timestamp" ) )
dump_box = 0;
else
return print_help( -1 );
filename = argv[2];
}
else
{
if( !strcasecmp( argv[1], "-h" ) || !strcasecmp( argv[1], "--help" ) )
return print_help( 0 );
filename = argv[1];
}
#ifdef _WIN32
_setmode( _fileno(stdin), _O_BINARY );
#endif
lsmash_file_mode mode = LSMASH_FILE_MODE_READ;
if( dump_box )
mode |= LSMASH_FILE_MODE_DUMP;
lsmash_root_t *root = lsmash_open_movie( filename, mode );
if( !root )
{
fprintf( stderr, "Failed to open input file.\n" );
return -1;
}
if( chapter )
{
if( lsmash_print_chapter_list( root ) )
return BOXDUMPER_ERR( "Failed to extract chapter.\n" );
}
else if( dump_box )
{
if( lsmash_print_movie( root, "-" ) )
return BOXDUMPER_ERR( "Failed to dump box structure.\n" );
}
else
{
lsmash_movie_parameters_t movie_param;
lsmash_initialize_movie_parameters( &movie_param );
lsmash_get_movie_parameters( root, &movie_param );
uint32_t num_tracks = movie_param.number_of_tracks;
for( uint32_t track_number = 1; track_number <= num_tracks; track_number++ )
{
uint32_t track_ID = lsmash_get_track_ID( root, track_number );
if( !track_ID )
return BOXDUMPER_ERR( "Failed to get track_ID.\n" );
lsmash_media_parameters_t media_param;
lsmash_initialize_media_parameters( &media_param );
if( lsmash_get_media_parameters( root, track_ID, &media_param ) )
return BOXDUMPER_ERR( "Failed to get media parameters.\n" );
if( lsmash_construct_timeline( root, track_ID ) )
return BOXDUMPER_ERR( "Failed to construct timeline.\n" );
uint32_t timeline_shift;
if( lsmash_get_composition_to_decode_shift_from_media_timeline( root, track_ID, &timeline_shift ) )
return BOXDUMPER_ERR( "Failed to get timestamps.\n" );
lsmash_media_ts_list_t ts_list;
if( lsmash_get_media_timestamps( root, track_ID, &ts_list ) )
return BOXDUMPER_ERR( "Failed to get timestamps.\n" );
fprintf( stdout, "track_ID: %"PRIu32"\n", track_ID );
fprintf( stdout, "Media timescale: %"PRIu32"\n", media_param.timescale );
lsmash_media_ts_t *ts_array = ts_list.timestamp;
if( !ts_array )
{
fprintf( stdout, "\n" );
continue;
}
for( uint32_t i = 0; i < ts_list.sample_count; i++ )
fprintf( stdout, "DTS = %"PRIu64", CTS = %"PRIu64"\n", ts_array[i].dts, ts_array[i].cts + timeline_shift );
free( ts_array );
fprintf( stdout, "\n" );
}
}
lsmash_destroy_root( root );
return 0;
}
