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avformat/riffdec: add support for HEAACWAVEFORMAT

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This is an extension to WAVEFORMATEX used for some AAC streams, defined in the
Windows SDK.

Fixes issue #20887.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2025-11-10 17:37:58 -03:00
parent 35464ad9eb
commit 362d673ad6
3 changed files with 16 additions and 1 deletions
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1
libavformat/riff.c
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@@ -596,6 +596,7 @@ const AVCodecTag ff_codec_wav_tags[] = {
/* ADTS AAC */
{ AV_CODEC_ID_AAC, 0x1600 },
{ AV_CODEC_ID_AAC_LATM, 0x1602 },
{ AV_CODEC_ID_AAC, 0x1610 },
{ AV_CODEC_ID_AC3, 0x2000 },
/* There is no Microsoft Format Tag for E-AC3, the GUID has to be used */
{ AV_CODEC_ID_EAC3, 0x2000 },

14
libavformat/riffdec.c
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@@ -149,6 +149,20 @@ int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
parse_waveformatex(s, pb, par);
cbSize -= 22;
size -= 22;
} else if (cbSize >= 12 && id == 0x1610) { /* HEAACWAVEFORMAT */
int wPayloadType = avio_rl16(pb);
if (wPayloadType == 3)
par->codec_id = AV_CODEC_ID_AAC_LATM;
avio_skip(pb, 2); // wAudioProfileLevelIndication
int wStructType = avio_rl16(pb);
if (wStructType) {
avpriv_report_missing_feature(s, "HEAACWAVEINFO wStructType \"%d\"", wStructType);
return AVERROR_PATCHWELCOME;
}
avio_skip(pb, 2); // wReserved1
avio_skip(pb, 4); // dwReserved2
cbSize -= 12;
size -= 12;
}
if (cbSize > 0) {
ret = ff_get_extradata(s, par, pb, cbSize);

2
libavformat/version.h
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@@ -32,7 +32,7 @@
#include "version_major.h"
#define LIBAVFORMAT_VERSION_MINOR 6
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_MICRO 102
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \