[FFmpeg-devel] [PATCH 3/4] aac: define a new profile for USAC - Lynne via ffmpeg-devel

From: Lynne via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Lynne <dev@lynne.ee>
Subject: [FFmpeg-devel] [PATCH 3/4] aac: define a new profile for USAC
Date: Wed,  5 Jun 2024 05:08:37 +0200
Message-ID: <20240605030843.2807174-3-dev@lynne.ee> (raw)
In-Reply-To: <20240605030843.2807174-1-dev@lynne.ee>

This allows users to determine whether a stream is USAC or not.
---
 libavcodec/aac/aacdec_usac.c | 4 ++++
 libavcodec/avcodec.h         | 1 +
 libavcodec/defs.h            | 1 +
 libavcodec/profiles.c        | 1 +
 libavcodec/profiles.h        | 1 +
 5 files changed, 8 insertions(+)

diff --git a/libavcodec/aac/aacdec_usac.c b/libavcodec/aac/aacdec_usac.c
index 7b36b49d63..5c3bb8d4ac 100644
--- a/libavcodec/aac/aacdec_usac.c
+++ b/libavcodec/aac/aacdec_usac.c
@@ -494,6 +494,8 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
         }
     }
 
+    ac->avctx->profile = AV_PROFILE_AAC_USAC;
+
     ret = ff_aac_usac_reset_state(ac, oc);
     if (ret < 0)
         return ret;
@@ -1533,6 +1535,8 @@ int ff_aac_usac_decode_frame(AVCodecContext *avctx, AACDecContext *ac,
     ff_aac_output_configure(ac, ac->oc[1].layout_map, ac->oc[1].layout_map_tags,
                             ac->oc[1].status, 0);
 
+    ac->avctx->profile = AV_PROFILE_AAC_USAC;
+
     indep_flag = get_bits1(gb);
 
     nb_ch_el = 0;
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 2da63c87ea..257e04fe2d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1652,6 +1652,7 @@ typedef struct AVCodecContext {
 #define FF_PROFILE_AAC_HE_V2 28
 #define FF_PROFILE_AAC_LD   22
 #define FF_PROFILE_AAC_ELD  38
+#define FF_PROFILE_AAC_USAC 41
 #define FF_PROFILE_MPEG2_AAC_LOW 128
 #define FF_PROFILE_MPEG2_AAC_HE  131
 
diff --git a/libavcodec/defs.h b/libavcodec/defs.h
index 00d840ec19..7ddfdcad0b 100644
--- a/libavcodec/defs.h
+++ b/libavcodec/defs.h
@@ -73,6 +73,7 @@
 #define AV_PROFILE_AAC_HE_V2       28
 #define AV_PROFILE_AAC_LD          22
 #define AV_PROFILE_AAC_ELD         38
+#define AV_PROFILE_AAC_USAC        41
 #define AV_PROFILE_MPEG2_AAC_LOW  128
 #define AV_PROFILE_MPEG2_AAC_HE   131
 
diff --git a/libavcodec/profiles.c b/libavcodec/profiles.c
index 052b77926e..44bdf6f85b 100644
--- a/libavcodec/profiles.c
+++ b/libavcodec/profiles.c
@@ -33,6 +33,7 @@ const AVProfile ff_aac_profiles[] = {
     { AV_PROFILE_AAC_MAIN,  "Main" },
     { AV_PROFILE_AAC_SSR,   "SSR"  },
     { AV_PROFILE_AAC_LTP,   "LTP"  },
+    { AV_PROFILE_AAC_USAC,  "xHE-AAC" },
     { AV_PROFILE_UNKNOWN },
 };
 
diff --git a/libavcodec/profiles.h b/libavcodec/profiles.h
index 842201718b..33b7ffc17a 100644
--- a/libavcodec/profiles.h
+++ b/libavcodec/profiles.h
@@ -35,6 +35,7 @@
     FF_AVCTX_PROFILE_OPTION("aac_he_v2",     NULL, AUDIO, AV_PROFILE_AAC_HE_V2)\
     FF_AVCTX_PROFILE_OPTION("aac_ld",        NULL, AUDIO, AV_PROFILE_AAC_LD)\
     FF_AVCTX_PROFILE_OPTION("aac_eld",       NULL, AUDIO, AV_PROFILE_AAC_ELD)\
+    FF_AVCTX_PROFILE_OPTION("aac_xhe",       NULL, AUDIO, AV_PROFILE_AAC_USAC)\
     FF_AVCTX_PROFILE_OPTION("mpeg2_aac_low", NULL, AUDIO, AV_PROFILE_MPEG2_AAC_LOW)\
     FF_AVCTX_PROFILE_OPTION("mpeg2_aac_he",  NULL, AUDIO, AV_PROFILE_MPEG2_AAC_HE)\
 
-- 
2.43.0.381.gb435a96ce8
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