[FFmpeg-devel] FW: Transport streams with change in channels/sample rate result in huge silence insertion

[Sailaja Mahendrakar]

Hi Michael,

Where can I upload the test sample with audio channels and sample rate change?

I found the earlier fix has a problem with initial silence addition, so making the correction now(attached diff).

git status
ffmpeg.c
libavfilter/af_aresample.c
libavfilter/avcodec.h
libavfilter/avfilter.h
libavfilter/buffersrc.c
libswresample/swresample.c
libswresample/swresample.h
libswresample/swresample_internal.h

Regards,
Sailaja

-----Original Message-----
From: Sailaja Mahendrakar 
Sent: Monday, January 14, 2013 1:42 PM
To: 'Michael Niedermayer'; FFmpeg development discussions and patches
Subject: RE: [FFmpeg-devel] FW: Transport streams with change in channels/sample rate result in huge silence insertion

Hi Michael,

make fate-filter-aresample, breaks excluding the patch too.

I have a test clip which has change in sample rate as well as channels, where do I upload, for you to take a look?

./ffmpeg -psnr  -y -loglevel verbose -i ../network44-Ad48.ts -vsync 1 -async 2 -f mpegts -map 0:0 -streamid 0:48 -codec:v:0 mpeg2video -map 0:1 -streamid 0:49 -codec:a:0 mp2 -b:a:0 384000 -ar:a:0 48000 -ac:a:0 2 ../network.ts

Thanks,
Sailaja

-----Original Message-----
From: Michael Niedermayer [mailto:michaelni at gmx.at] 
Sent: Friday, January 11, 2013 7:23 PM
To: FFmpeg development discussions and patches
Cc: Sailaja Mahendrakar
Subject: Re: [FFmpeg-devel] FW: Transport streams with change in channels/sample rate result in huge silence insertion

Hi

On Fri, Jan 11, 2013 at 09:46:16PM +0000, Sailaja Mahendrakar wrote:
> Hi All,
> 
> Can anyone check this patch? Without this fix, transcoded audio will stop playing from the time the audio channels or sample rate is changed.

the patch breaks
make fate-filter-aresample

also please provide a testcase/sample file with which the described bug can be reproduced

thanks

[...]

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