From: Erdinc Kaya via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Erdinc Kaya <erdinc@veed.io>
Subject: [FFmpeg-devel] [PATCH] Fix WAV bitrate calculation when bits_per_coded_sample != 8
Date: Mon, 17 Nov 2025 14:01:19 +0100
Message-ID: <bddc8a79-8fde-4296-b916-450bef6d7f41@veed.io> (raw)
- Correctly scale bitrate by bits_per_coded_sample instead of assuming 8
bits per byte.
- Prevents wrong bitrate reports for 16-bit PCM WAV files.
Signed-off-by: Erdinc Kaya <erdinc@veed.io>
---
libavformat/riffdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/riffdec.c b/libavformat/riffdec.c
index 30835d5f36..d63edc6377 100644
--- a/libavformat/riffdec.c
+++ b/libavformat/riffdec.c
@@ -130,6 +130,10 @@ int ff_get_wav_header(AVFormatContext *s,
AVIOContext *pb,
par->bits_per_coded_sample = avio_rb16(pb);
}
}
+
+ if (par->bits_per_coded_sample)
+ bitrate *= 8.0 / par->bits_per_coded_sample;
+
if (id == 0xFFFE) {
par->codec_tag = 0;
} else {
--
2.43.0
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next reply other threads:[~2025-11-19 18:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-17 13:01 Erdinc Kaya via ffmpeg-devel [this message]
2025-11-25 1:24 ` [FFmpeg-devel] " Michael Niedermayer via ffmpeg-devel
2025-11-25 2:15 ` James Almer via ffmpeg-devel
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