Download-Tools/mkvtoolnix
1
0
Fork 0
mirror of https://gitlab.com/mbunkus/mkvtoolnix.git synced 2024-12-24 11:54:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Use the AAC config data parser function.

Browse Source
This commit is contained in:
Moritz Bunkus 2004-01-21 15:39:12 +00:00
parent 68cd0dd74d
commit 447c94a776
1 changed files with 11 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/input/r_qtmp4.cpp
View File

@ -30,6 +30,7 @@
#include <zlib.h>
#endif
#include "aac_common.h"
#include "common.h"
#include "matroska.h"
#include "mkvmerge.h"
@ -1076,40 +1077,25 @@ void qtmp4_reader_c::create_packetizer(int64_t tid) {
"%u (FourCC: %.4s).\n", dmx->id, dmx->fourcc);
} else if (!strncasecmp(dmx->fourcc, "MP4A", 4)) {
int profile, srate_idx, channels, osrate_idx;
int profile, sample_rate, channels, output_sample_rate;
bool sbraac;
osrate_idx = 0;
if ((dmx->a_esds.decoder_config_len == 2) ||
(dmx->a_esds.decoder_config_len == 5)) {
profile = (dmx->a_esds.decoder_config[0] >> 3) - 1;
srate_idx = ((dmx->a_esds.decoder_config[0] & 0x07) << 1) |
(dmx->a_esds.decoder_config[1] >> 7);
channels = (dmx->a_esds.decoder_config[1] & 0x7f) >> 3;
mxverb(2, PFX "AAC: profile: %d, sample_rate_idx: %d, channels: "
"%d", profile, srate_idx, channels);
if (dmx->a_esds.decoder_config_len == 5) {
osrate_idx = (dmx->a_esds.decoder_config[4] & 0x7f) >> 3;
sbraac = true;
mxverb(2, ", SBR sample_rate_idx: %d", osrate_idx);
parse_aac_data(dmx->a_esds.decoder_config,
dmx->a_esds.decoder_config_len, profile, channels,
sample_rate, output_sample_rate, sbraac);
mxverb(2, PFX "AAC: profile: %d, sample_rate: %d, channels: "
"%d, output_sample_rate: %d, sbr: %d\n", profile, sample_rate,
channels, output_sample_rate, (int)sbraac);
if (sbraac)
profile = AAC_PROFILE_SBR;
} else if (aac_sampling_freq[srate_idx] < 44100) {
sbraac = true;
profile = AAC_PROFILE_SBR;
osrate_idx =
get_aac_sampling_freq_idx(aac_sampling_freq[srate_idx] * 2);
mxverb(2, ", implicit SBR sample_rate_idx: %d", osrate_idx);
} else
sbraac = false;
mxverb(2, "\n");
srate_idx = aac_sampling_freq[srate_idx];
dmx->packetizer = new aac_packetizer_c(this, AAC_ID_MPEG4, profile,
srate_idx, channels, ti,
sample_rate, channels, ti,
false, true);
if (sbraac)
dmx->packetizer->
set_audio_output_sampling_freq(aac_sampling_freq[osrate_idx]);
set_audio_output_sampling_freq(output_sample_rate);
if (verbose)
mxinfo("+-> Using AAC output module for stream %u.\n", dmx->id);