---------- Forwarded message ---------
От: Andrew Randrianasulu <randrianas...@gmail.com>
Date: вс, 21 янв. 2024 г., 06:49
Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
To: FFmpeg user questions <ffmpeg-u...@ffmpeg.org>, Cinelerra.GG <
c...@lists.cinelerra-gg.org>
relative to ffmpeg.git commit 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
lightly tested with mpv and mediainfo like this:
./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f dvd
t.mpg
mpv plays sound correctly, mediainfo does not know those frequencies and
display 0khz. ;)
====
forwarded to ffmpeg-devel as requested.
From 0438f90d10ef7f5162d6b7221a02ad240c1e99dd Mon Sep 17 00:00:00 2001
From: Andrew Randrianasulu <randrianasulu@gmail.com>
Date: Sun, 21 Jan 2024 06:10:32 +0300
Subject: [PATCH] Add 32/44.1 khz sampling frequencies to pcm-dvd encoder
Signed-off-by: Andrew Randrianasulu <randrianasulu@gmail.com>
---
libavcodec/pcm-dvdenc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libavcodec/pcm-dvdenc.c b/libavcodec/pcm-dvdenc.c
index a2e5cbdc2e..67121e31b4 100644
--- a/libavcodec/pcm-dvdenc.c
+++ b/libavcodec/pcm-dvdenc.c
@@ -38,6 +38,12 @@ static av_cold int pcm_dvd_encode_init(AVCodecContext *avctx)
int quant, freq, frame_size;
switch (avctx->sample_rate) {
+ case 32000:
+ freq = 3;
+ break;
+ case 44100:
+ freq = 2;
+ break;
case 48000:
freq = 0;
break;
@@ -181,7 +187,7 @@ const FFCodec ff_pcm_dvd_encoder = {
.priv_data_size = sizeof(PCMDVDContext),
.init = pcm_dvd_encode_init,
FF_CODEC_ENCODE_CB(pcm_dvd_encode_frame),
- .p.supported_samplerates = (const int[]) { 48000, 96000, 0},
+ .p.supported_samplerates = (const int[]) { 32000, 44100, 48000, 96000, 0},
CODEC_OLD_CHANNEL_LAYOUTS(AV_CH_LAYOUT_MONO, AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_5POINT1, AV_CH_LAYOUT_7POINT1)
.p.ch_layouts = (const AVChannelLayout[]) { AV_CHANNEL_LAYOUT_MONO,
--
2.43.0
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