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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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This commit is contained in:
Moritz Bunkus 2004-11-23 13:58:37 +00:00
parent 1615eb84a4
commit 0128479143
5 changed files with 38 additions and 11 deletions
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2
src/common/aac_common.cpp
View File

@ -222,7 +222,7 @@ parse_aac_data(unsigned char *data,
if (size == 5) {
output_sample_rate = aac_sampling_freq[(data[4] & 0x7f) >> 3];
sbr = true;
} else if (sample_rate < 44100) {
} else if (sample_rate <= 24000) {
output_sample_rate = 2 * sample_rate;
sbr = true;
} else

1
src/common/matroska.h
View File

@ -27,6 +27,7 @@
#define MKV_A_AAC_4SSR "A_AAC/MPEG4/SSR"
#define MKV_A_AAC_4LTP "A_AAC/MPEG4/LTP"
#define MKV_A_AAC_4SBR "A_AAC/MPEG4/LC/SBR"
#define MKV_A_AAC "A_AAC"
#define MKV_A_AC3 "A_AC3"
#define MKV_A_DTS "A_DTS"
#define MKV_A_MP3 "A_MPEG/L3"

31
src/input/r_matroska.cpp
View File

@ -443,8 +443,7 @@ kax_reader_c::verify_tracks() {
c = (unsigned char *)t->private_data;
if (c[0] != 2) {
if (verbose)
mxwarn(PFX "Vorbis track does not "
"contain valid headers.\n");
mxwarn(PFX "Vorbis track does not contain valid headers.\n");
continue;
}
@ -458,8 +457,7 @@ kax_reader_c::verify_tracks() {
}
if (offset >= (t->private_size - 1)) {
if (verbose)
mxwarn(PFX "Vorbis track does not "
"contain valid headers.\n");
mxwarn(PFX "Vorbis track does not contain valid headers.\n");
continue;
}
length += c[offset];
@ -497,8 +495,15 @@ kax_reader_c::verify_tracks() {
(t->codec_id == MKV_A_AAC_2SBR) ||
(t->codec_id == MKV_A_AAC_4SBR))
t->a_formattag = FOURCC('M', 'P', '4', 'A');
else if (starts_with(t->codec_id, MKV_A_REAL_COOK,
strlen("A_REAL/")))
else if (t->codec_id == MKV_A_AAC) {
if ((t->private_data == NULL) || (t->private_size < 2)) {
mxwarn(PFX "The AAC track number %u is missing its private "
"data. Ignoring this track.\n", t->tnum);
continue;
}
t->a_formattag = FOURCC('M', 'P', '4', 'A');
} else if (starts_with(t->codec_id, MKV_A_REAL_COOK,
strlen("A_REAL/")))
t->a_formattag = FOURCC('r', 'e', 'a', 'l');
else if (t->codec_id == MKV_A_FLAC) {
#if defined(HAVE_FLAC_FORMAT_H)
@ -1651,7 +1656,19 @@ kax_reader_c::create_packetizer(int64_t tid) {
id = 0;
profile = 0;
if (t->a_formattag == FOURCC('M', 'P', '4', 'A')) {
if (!parse_aac_codec_id(string(t->codec_id), id, profile))
int channels, sfreq, osfreq;
bool sbr;
if (t->codec_id == MKV_A_AAC) {
id = AAC_ID_MPEG4;
if (!parse_aac_data((unsigned char *)t->private_data,
t->private_size, profile, channels, sfreq,
osfreq, sbr))
mxerror(FMT_TID "Malformed AAC codec initialization data "
"found.\n", ti->fname.c_str(), (int64_t)t->tnum);
if (sbr)
profile = AAC_PROFILE_SBR;
} else if (!parse_aac_codec_id(string(t->codec_id), id, profile))
mxerror(FMT_TID "Malformed codec id '%s'.\n", ti->fname.c_str(),
(int64_t)t->tnum, t->codec_id.c_str());
} else {

7
src/input/r_qtmp4.cpp
View File

@ -1208,8 +1208,7 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
int profile, sample_rate, channels, output_sample_rate;
bool sbraac;
if ((dmx->esds.decoder_config_len == 2) ||
(dmx->esds.decoder_config_len == 5)) {
if (dmx->esds.decoder_config_len >= 2) {
parse_aac_data(dmx->esds.decoder_config,
dmx->esds.decoder_config_len, profile, channels,
sample_rate, output_sample_rate, sbraac);
@ -1218,6 +1217,8 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
channels, output_sample_rate, (int)sbraac);
if (sbraac)
profile = AAC_PROFILE_SBR;
ti->private_data = dmx->esds.decoder_config;
ti->private_size = dmx->esds.decoder_config_len;
dmx->ptzr =
add_packetizer(new aac_packetizer_c(this, AAC_ID_MPEG4, profile,
sample_rate, channels, ti,
@ -1227,6 +1228,8 @@ qtmp4_reader_c::create_packetizer(int64_t tid) {
set_audio_output_sampling_freq(output_sample_rate);
mxinfo(FMT_TID "Using the AAC output module.\n", ti->fname.c_str(),
(int64_t)dmx->id);
ti->private_data = NULL;
ti->private_size = 0;
} else
mxerror(FMT_TID "AAC found, but decoder config data has length %u."

8
src/output/p_aac.cpp
View File

@ -126,7 +126,10 @@ aac_packetizer_c::get_aac_packet(unsigned long *header,
void
aac_packetizer_c::set_headers() {
if (id == AAC_ID_MPEG4) {
if ((ti->private_size > 0) && (ti->private_size != 2) &&
(ti->private_size != 5))
set_codec_id(MKV_A_AAC);
else if (id == AAC_ID_MPEG4) {
if (profile == AAC_PROFILE_MAIN)
set_codec_id(MKV_A_AAC_4MAIN);
else if (profile == AAC_PROFILE_LC)
@ -154,6 +157,9 @@ aac_packetizer_c::set_headers() {
set_audio_sampling_freq((float)samples_per_sec);
set_audio_channels(channels);
if ((ti->private_data != NULL) && (ti->private_size > 0))
set_codec_private(ti->private_data, ti->private_size);
generic_packetizer_c::set_headers();
}