Now that we actually have sample(s) for channel_config 13, it was possible to see at which various points the AAC decoder fails attempting to parse the bit stream.
I have not yet found or generated a channel layout test sample so I could fully validate the channel map output by the AAC decoder, but at least 7/24 seem to be correct looking at the decoded WAV output in Audacity (front left/right, center, top and bottom front left/right seem to be correct based on the sample linked in #8714). Fixes #8714 Jan Ekström (5): avutil/channel_layout: add 22.2 layout avcodec/mpeg4audio: add newer channel_coding mappings avcodec/aacdectab: add mapping for 22.2 avcodec/aacdec_template: mark second LFE element as LFE2 avcodec/aacdec_template: add support for 22.2 / channel_config 13 doc/APIchanges | 5 ++++ libavcodec/aacdec_template.c | 55 ++++++++++++++++++++++++++++++++++-- libavcodec/aacdectab.h | 23 +++++++++++++-- libavcodec/mpeg4audio.c | 17 +++++++++-- libavcodec/mpeg4audio.h | 2 +- libavutil/channel_layout.c | 6 ++++ libavutil/channel_layout.h | 6 ++++ libavutil/version.h | 2 +- 8 files changed, 108 insertions(+), 8 deletions(-) -- 2.26.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
