On 3/5/2024 8:12 PM, Michael Niedermayer wrote:
On Sun, Mar 03, 2024 at 01:17:57PM +0100, Anton Khirnov wrote:
Quoting Anton Khirnov (2024-03-01 17:07:22)
Quoting Michael Niedermayer (2024-02-23 23:50:10)
Hi Anton
On Fri, Feb 23, 2024 at 02:58:36PM +0100, Anton Khirnov wrote:
Will be useful in following commits.
---
breaks:
./ffmpeg -y -request_channel_layout 3 -i
bug/401/mlp_5point1_downmixof6channel.mlp -bitexact
file-2-mlp_5point1_downmixof6channel.wav
[mlp @ 0x55690e23ff80] Error setting option request_channel_layout to value 3.
[mlp @ 0x55690e23ed00] Failed to open codec in avformat_find_stream_info
[mlp @ 0x55690e23ff80] Error setting option request_channel_layout to value 3.
Input #0, mlp, from 'bug/401/mlp_5point1_downmixof6channel.mlp':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Audio: mlp, 48000 Hz, 5.1, s32 (24 bit)
[mlp @ 0x55690e257900] Error setting option request_channel_layout to value 3.
[aist#0:0/mlp @ 0x55690e254dc0] [dec:mlp @ 0x55690e256f40] Error while opening
decoder: Invalid argument
[aost#0:0/pcm_s16le @ 0x55690e255a80] Error initializing a simple filtergraph
Error opening output file file-2-mlp_5point1_downmixof6channel.wav.
Error opening output files: Invalid argument
i suspect this isnt specific to the file but i can provide it if it
doesnt reproduce with a other file
Cannot reproduce with another mlp or 5.1 ac3 file.
Cannot reproduce with your sample either. Are you sure you're using the
right code? It's branch 'avoption_list' in my tree.
it worked with "-downmix stereo" instead of "-request_channel_layout 3"
as suggested by james
Would be nice to find out why. downmix is a codec specific option
whereas request_channel_layout is a global AVCodecContext option.
Something here may have affected how child AVOptions are accessed. But
if Anton can't reproduce it, then maybe your tree was dirty?
thx
[...]
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