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From: Nicolas Gaullier <nicolas.gaullier@cji.paris>
To: ffmpeg-devel@ffmpeg.org
Cc: Nicolas Gaullier <nicolas.gaullier@cji.paris>
Subject: [FFmpeg-devel] [PATCH v2 1/2] avcodec/aac_ac3_parser: remove dead code
Date: Mon,  7 Jul 2025 15:19:20 +0200
Message-ID: <20250707131930.2924213-1-nicolas.gaullier@cji.paris> (raw)

ff_adts_header_parse() gets the object_type from only 2 bits.
See also 696ea1c2236842572df88d573e24a39be3f19c98.

Introduced in 64bb91fd3b5a00a8849531c7e8dd207f2a626096.

Signed-off-by: Nicolas Gaullier <nicolas.gaullier@cji.paris>
---
 libavcodec/aac_ac3_parser.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavcodec/aac_ac3_parser.c b/libavcodec/aac_ac3_parser.c
index e10ce13a3b..b49ce0277c 100644
--- a/libavcodec/aac_ac3_parser.c
+++ b/libavcodec/aac_ac3_parser.c
@@ -147,15 +147,14 @@ get_next:
         } else {
 #if CONFIG_AAC_PARSER
             AACADTSHeaderInfo hdr;
-            GetBitContext gb;
 
-            init_get_bits8(&gb, buf, buf_size);
             if (buf_size < AV_AAC_ADTS_HEADER_SIZE ||
-                ff_adts_header_parse(&gb, &hdr) < 0)
+                ff_adts_header_parse_buf(buf, &hdr) < 0)
                 return i;
 
             avctx->profile = hdr.object_type - 1;
-            s1->key_frame = (avctx->profile == AV_PROFILE_AAC_USAC) ? get_bits1(&gb) : 1;
+            /* ADTS does not support USAC */
+            s1->key_frame = 1;
             bit_rate = hdr.bit_rate;
 #endif
         }
-- 
2.47.2

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             reply	other threads:[~2025-07-07 13:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-07 13:19 Nicolas Gaullier [this message]
2025-07-07 13:19 ` [FFmpeg-devel] [PATCH v2 2/2] avcodec/aac_ac3_parser: do not override the profile set by the decoder Nicolas Gaullier
2025-07-07 13:21   ` James Almer
2025-07-07 13:40 ` [FFmpeg-devel] [PATCH v2 1/2] avcodec/aac_ac3_parser: remove dead code James Almer
2025-07-07 14:54   ` Nicolas Gaullier

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