I've attached the updated patch. Both new entries are now placed in an alphabetically correct way in their appropriate lists.

On Monday, February 12th, 2024 at 11:53 AM, Andreas Rheinhardt <andreas.rheinhardt@outlook.com> wrote:

> asivery via ffmpeg-devel:
> 
> > I apologize for not having responded earlier.
> > I've attached the updated patch.
> > 
> > From 68c77320954e44a7f02e95537fc9a6436da7549c Mon Sep 17 00:00:00 2001
> > From: asivery asivery@protonmail.com
> > Date: Sun, 11 Feb 2024 23:13:07 +0100
> > Subject: [PATCH] avformat/matroska: Add support for A_ATRAC/AT1
> > 
> > Signed-off-by: asivery asivery@protonmail.com
> > ---
> 
> 
> Send your patch either via git send-email or as an attachment; if you
> have comments for your patch (that are not supposed to be part of the
> eventual commit and not its commit message), then put them here, in
> between the --- and the affected files.
> 
> > libavformat/matroska.c | 1 +
> > libavformat/matroskadec.c | 8 ++++++++
> > libavformat/matroskaenc.c | 1 +
> > 3 files changed, 10 insertions(+)
> > 
> > diff --git a/libavformat/matroska.c b/libavformat/matroska.c
> > index 5878594e68..ae9ecc8207 100644
> > --- a/libavformat/matroska.c
> > +++ b/libavformat/matroska.c
> > @@ -53,6 +53,7 @@ const CodecTags ff_mkv_codec_tags[]={
> > {"A_REAL/ATRC" , AV_CODEC_ID_ATRAC3},
> > {"A_REAL/COOK" , AV_CODEC_ID_COOK},
> > {"A_REAL/SIPR" , AV_CODEC_ID_SIPR},
> > + {"A_ATRAC/AT1" , AV_CODEC_ID_ATRAC1},
> 
> 
> This audio part of this list is ordered by the Matroska CodecID (i.e.
> the string on the left). Please keep it that way.
> 
> > {"A_TRUEHD" , AV_CODEC_ID_TRUEHD},
> > {"A_TTA1" , AV_CODEC_ID_TTA},
> > {"A_VORBIS" , AV_CODEC_ID_VORBIS},
> > diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
> > index 8f000f86be..1bb6e8605a 100644
> > --- a/libavformat/matroskadec.c
> > +++ b/libavformat/matroskadec.c
> > @@ -2779,6 +2779,14 @@ static int mka_parse_audio_codec(MatroskaTrack *track, AVCodecParameters par,
> > return AVERROR(ENOMEM);
> > break;
> > }
> > + case AV_CODEC_ID_ATRAC1:
> > + / ATRAC1 uses a constant frame size.
> > + * Typical ATRAC1 streams are either mono or stereo.
> > + * At most, ATRAC1 was used to store 8 channels of audio. */
> > + if (track->audio.channels > 8)
> > + return AVERROR_INVALIDDATA;
> > + par->block_align = track->audio.channels * 212;
> > + break;
> > case AV_CODEC_ID_FLAC:
> > if (track->codec_priv.size) {
> > ret = matroska_parse_flac(s, track, extradata_offset);
> > diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
> > index 1457a6890c..aa25657f8f 100644
> > --- a/libavformat/matroskaenc.c
> > +++ b/libavformat/matroskaenc.c
> > @@ -3483,6 +3483,7 @@ static const AVCodecTag additional_audio_tags[] = {
> > { AV_CODEC_ID_QDM2, 0xFFFFFFFF },
> > { AV_CODEC_ID_RA_144, 0xFFFFFFFF },
> > { AV_CODEC_ID_TRUEHD, 0xFFFFFFFF },
> > + { AV_CODEC_ID_ATRAC1, 0xFFFFFFFF },
> 
> 
> Please keep this list sorted alphabetically.
> 
> > { AV_CODEC_ID_NONE, 0xFFFFFFFF }
> > };
> 
> 
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