PR #23370 opened by toots URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23370 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23370.patch
This is a bit of a confusing situation because there is already a `apac` codec in the code base (see: https://www.rarewares.org/rrw/apac.php) leading to some confusion because the `mov` box for apple's APAC is also named `apac`. With these changes, at least apple's APAC is properly reported with a distinct name. Before: ``` Stream #0:0[0x1]: Audio: apac_apple (apac / 0x63617061), 48000 Hz, 4 channels, 363 kb/s (default) Metadata: handler_name : Core Media Audio vendor_id : [0][0][0][0] ``` After: ``` Stream #0:0[0x1]: Audio: apple_apac (apac / 0x63617061), 48000 Hz, 4 channels, 363 kb/s (default) Metadata: handler_name : Core Media Audio vendor_id : [0][0][0][0] ``` >From 0909dfef1560000cd7dc2eec08974fd6b3a0de11 Mon Sep 17 00:00:00 2001 From: Romain Beauxis <[email protected]> Date: Fri, 5 Jun 2026 11:21:20 -0500 Subject: [PATCH 1/2] avcodec/codec_id: Add Apple Positional Audio Codec. Signed-off-by: Romain Beauxis <[email protected]> --- libavcodec/codec_desc.c | 7 +++++++ libavcodec/codec_id.h | 1 + 2 files changed, 8 insertions(+) diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 99e7c0de3d..7b160e5845 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -3575,6 +3575,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("CRI AHX"), .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_APPLE_APAC, + .type = AVMEDIA_TYPE_AUDIO, + .name = "apple_apac", + .long_name = NULL_IF_CONFIG_SMALL("Apple Positional Audio Codec"), + .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS, + }, /* subtitle codecs */ { diff --git a/libavcodec/codec_id.h b/libavcodec/codec_id.h index bb2c16a958..1aad9ba0e9 100644 --- a/libavcodec/codec_id.h +++ b/libavcodec/codec_id.h @@ -567,6 +567,7 @@ enum AVCodecID { AV_CODEC_ID_LC3, AV_CODEC_ID_G728, AV_CODEC_ID_AHX, + AV_CODEC_ID_APPLE_APAC, /* subtitle codecs */ AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs. -- 2.52.0 >From 7677af58d18803f8b8e4a49ce897599eb34e1c17 Mon Sep 17 00:00:00 2001 From: Romain Beauxis <[email protected]> Date: Fri, 5 Jun 2026 11:22:17 -0500 Subject: [PATCH 2/2] avformat//isom_tags: Add support for demuxing apple_apac Signed-off-by: Romain Beauxis <[email protected]> --- libavformat/isom_tags.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavformat/isom_tags.c b/libavformat/isom_tags.c index 1cd655b06c..556f0eeea4 100644 --- a/libavformat/isom_tags.c +++ b/libavformat/isom_tags.c @@ -310,6 +310,7 @@ const AVCodecTag ff_codec_movvideo_tags[] = { const AVCodecTag ff_codec_movaudio_tags[] = { { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, + { AV_CODEC_ID_APPLE_APAC, MKTAG('a', 'p', 'a', 'c') }, { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */ { AV_CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */ { AV_CODEC_ID_AC4, MKTAG('a', 'c', '-', '4') }, -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
