static int wave_importer_probe( importer_t *importer ) { wave_importer_t *wave_imp = create_wave_importer( importer ); if( !wave_imp ) return LSMASH_ERR_MEMORY_ALLOC; int err = 0; uint32_t filesize; lsmash_bs_t *bs = importer->bs; if( lsmash_bs_get_be32( bs ) != LSMASH_4CC( 'R', 'I', 'F', 'F' ) || ((filesize = lsmash_bs_get_le32( bs ) + 8) < WAVE_MIN_FILESIZE && filesize > 8) || lsmash_bs_get_be32( bs ) != LSMASH_4CC( 'W', 'A', 'V', 'E' ) ) { err = LSMASH_ERR_INVALID_DATA; goto fail; } int fmt_chunk_present = 0; int data_chunk_present = 0; while( !bs->eob && !(fmt_chunk_present && data_chunk_present) ) { uint32_t ckID = lsmash_bs_get_be32( bs ); uint32_t ckSize = lsmash_bs_get_le32( bs ); lsmash_bs_reset_counter( bs ); switch( ckID ) { case LSMASH_4CC( 'f', 'm', 't', ' ' ) : if( ckSize < 16 ) { err = LSMASH_ERR_INVALID_DATA; goto fail; } if( (err = wave_parse_fmt_chunk( wave_imp, bs )) < 0 ) goto fail; fmt_chunk_present = 1; break; case LSMASH_4CC( 'd', 'a', 't', 'a' ) : if( !fmt_chunk_present ) { /* The 'fmt ' chunk must be present before the 'data' chunk. */ err = LSMASH_ERR_INVALID_DATA; goto fail; } wave_imp->chunk.data_offset = lsmash_bs_get_stream_pos( bs ); wave_imp->chunk.length = ckSize; wave_imp->chunk.number = 1; wave_imp->chunk.file = importer->file; wave_imp->number_of_samples = ckSize / wave_imp->fmt.wfx.nBlockAlign; data_chunk_present = 1; break; default : break; } if( !data_chunk_present ) { /* Skip the rest of this chunk. * Note that ckData is word-aligned even if ckSize is an odd number. */ uint32_t skip_size = ckSize; if( skip_size & 1 ) skip_size++; if( skip_size > lsmash_bs_count( bs ) ) { skip_size -= lsmash_bs_count( bs ); lsmash_bs_read_seek( bs, skip_size, SEEK_CUR ); } } } if( !(fmt_chunk_present && data_chunk_present) ) { err = LSMASH_ERR_INVALID_DATA; goto fail; } /* Make fake movie. * Treat WAVE file format as if it's QuickTime file format. */ uint32_t track_ID; lsmash_movie_parameters_t movie_param = { 0 }; lsmash_track_parameters_t track_param = { 0 }; lsmash_media_parameters_t media_param = { 0 }; importer->file->qt_compatible = 1; if( (err = lsmash_importer_make_fake_movie( importer )) < 0 || (err = lsmash_importer_make_fake_track( importer, ISOM_MEDIA_HANDLER_TYPE_AUDIO_TRACK, &track_ID )) < 0 || (err = lsmash_get_movie_parameters( importer->root, &movie_param )) < 0 || (err = lsmash_get_track_parameters( importer->root, track_ID, &track_param )) < 0 || (err = lsmash_get_media_parameters( importer->root, track_ID, &media_param )) < 0 ) goto fail; movie_param.timescale = wave_imp->fmt.wfx.nSamplesPerSec; media_param.timescale = wave_imp->fmt.wfx.nSamplesPerSec; if( (err = lsmash_set_movie_parameters( importer->root, &movie_param )) < 0 || (err = lsmash_set_track_parameters( importer->root, track_ID, &track_param )) < 0 || (err = lsmash_set_media_parameters( importer->root, track_ID, &media_param )) < 0 ) goto fail; lsmash_audio_summary_t *summary = wave_create_summary( &wave_imp->fmt ); if( !summary || lsmash_add_sample_entry( importer->root, track_ID, summary ) != 1 ) { lsmash_cleanup_summary( (lsmash_summary_t *)summary ); err = LSMASH_ERR_NAMELESS; goto fail; } if( (err = lsmash_add_entry( importer->summaries, summary )) < 0 ) { lsmash_cleanup_summary( (lsmash_summary_t *)summary ); goto fail; } importer->info = wave_imp; importer->status = IMPORTER_OK; return 0; fail: lsmash_importer_break_fake_movie( importer ); remove_wave_importer( wave_imp ); importer->file->qt_compatible = 0; importer->info = NULL; return err; }
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; }
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; }