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https://gitlab.com/mbunkus/mkvtoolnix.git
synced 2024-12-24 20:01:53 +00:00
Support for generic AAC that is neither "normal" nor "SBR" (e.g. parametric stereo or other extensions that are not translatable into the various A_AAC/MPEG* CodecIDs).
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1615eb84a4
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0128479143
@ -222,7 +222,7 @@ parse_aac_data(unsigned char *data,
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if (size == 5) {
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output_sample_rate = aac_sampling_freq[(data[4] & 0x7f) >> 3];
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sbr = true;
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} else if (sample_rate < 44100) {
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} else if (sample_rate <= 24000) {
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output_sample_rate = 2 * sample_rate;
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sbr = true;
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} else
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@ -27,6 +27,7 @@
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#define MKV_A_AAC_4SSR "A_AAC/MPEG4/SSR"
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#define MKV_A_AAC_4LTP "A_AAC/MPEG4/LTP"
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#define MKV_A_AAC_4SBR "A_AAC/MPEG4/LC/SBR"
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#define MKV_A_AAC "A_AAC"
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#define MKV_A_AC3 "A_AC3"
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#define MKV_A_DTS "A_DTS"
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#define MKV_A_MP3 "A_MPEG/L3"
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@ -443,8 +443,7 @@ kax_reader_c::verify_tracks() {
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c = (unsigned char *)t->private_data;
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if (c[0] != 2) {
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if (verbose)
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mxwarn(PFX "Vorbis track does not "
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"contain valid headers.\n");
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mxwarn(PFX "Vorbis track does not contain valid headers.\n");
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continue;
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}
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@ -458,8 +457,7 @@ kax_reader_c::verify_tracks() {
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}
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if (offset >= (t->private_size - 1)) {
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if (verbose)
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mxwarn(PFX "Vorbis track does not "
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"contain valid headers.\n");
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mxwarn(PFX "Vorbis track does not contain valid headers.\n");
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continue;
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}
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length += c[offset];
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@ -497,8 +495,15 @@ kax_reader_c::verify_tracks() {
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(t->codec_id == MKV_A_AAC_2SBR) ||
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(t->codec_id == MKV_A_AAC_4SBR))
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t->a_formattag = FOURCC('M', 'P', '4', 'A');
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else if (starts_with(t->codec_id, MKV_A_REAL_COOK,
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strlen("A_REAL/")))
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else if (t->codec_id == MKV_A_AAC) {
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if ((t->private_data == NULL) || (t->private_size < 2)) {
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mxwarn(PFX "The AAC track number %u is missing its private "
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"data. Ignoring this track.\n", t->tnum);
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continue;
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}
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t->a_formattag = FOURCC('M', 'P', '4', 'A');
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} else if (starts_with(t->codec_id, MKV_A_REAL_COOK,
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strlen("A_REAL/")))
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t->a_formattag = FOURCC('r', 'e', 'a', 'l');
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else if (t->codec_id == MKV_A_FLAC) {
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#if defined(HAVE_FLAC_FORMAT_H)
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@ -1651,7 +1656,19 @@ kax_reader_c::create_packetizer(int64_t tid) {
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id = 0;
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profile = 0;
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if (t->a_formattag == FOURCC('M', 'P', '4', 'A')) {
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if (!parse_aac_codec_id(string(t->codec_id), id, profile))
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int channels, sfreq, osfreq;
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bool sbr;
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if (t->codec_id == MKV_A_AAC) {
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id = AAC_ID_MPEG4;
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if (!parse_aac_data((unsigned char *)t->private_data,
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t->private_size, profile, channels, sfreq,
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osfreq, sbr))
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mxerror(FMT_TID "Malformed AAC codec initialization data "
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"found.\n", ti->fname.c_str(), (int64_t)t->tnum);
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if (sbr)
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profile = AAC_PROFILE_SBR;
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} else if (!parse_aac_codec_id(string(t->codec_id), id, profile))
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mxerror(FMT_TID "Malformed codec id '%s'.\n", ti->fname.c_str(),
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(int64_t)t->tnum, t->codec_id.c_str());
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} else {
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@ -1208,8 +1208,7 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
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int profile, sample_rate, channels, output_sample_rate;
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bool sbraac;
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if ((dmx->esds.decoder_config_len == 2) ||
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(dmx->esds.decoder_config_len == 5)) {
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if (dmx->esds.decoder_config_len >= 2) {
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parse_aac_data(dmx->esds.decoder_config,
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dmx->esds.decoder_config_len, profile, channels,
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sample_rate, output_sample_rate, sbraac);
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@ -1218,6 +1217,8 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
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channels, output_sample_rate, (int)sbraac);
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if (sbraac)
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profile = AAC_PROFILE_SBR;
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ti->private_data = dmx->esds.decoder_config;
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ti->private_size = dmx->esds.decoder_config_len;
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dmx->ptzr =
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add_packetizer(new aac_packetizer_c(this, AAC_ID_MPEG4, profile,
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sample_rate, channels, ti,
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@ -1227,6 +1228,8 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
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set_audio_output_sampling_freq(output_sample_rate);
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mxinfo(FMT_TID "Using the AAC output module.\n", ti->fname.c_str(),
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(int64_t)dmx->id);
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ti->private_data = NULL;
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ti->private_size = 0;
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} else
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mxerror(FMT_TID "AAC found, but decoder config data has length %u."
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@ -126,7 +126,10 @@ aac_packetizer_c::get_aac_packet(unsigned long *header,
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void
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aac_packetizer_c::set_headers() {
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if (id == AAC_ID_MPEG4) {
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if ((ti->private_size > 0) && (ti->private_size != 2) &&
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(ti->private_size != 5))
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set_codec_id(MKV_A_AAC);
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else if (id == AAC_ID_MPEG4) {
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if (profile == AAC_PROFILE_MAIN)
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set_codec_id(MKV_A_AAC_4MAIN);
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else if (profile == AAC_PROFILE_LC)
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@ -154,6 +157,9 @@ aac_packetizer_c::set_headers() {
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set_audio_sampling_freq((float)samples_per_sec);
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set_audio_channels(channels);
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if ((ti->private_data != NULL) && (ti->private_size > 0))
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set_codec_private(ti->private_data, ti->private_size);
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generic_packetizer_c::set_headers();
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}
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