[FFmpeg-user] ffmpeg recording RTSP stream with audio out of sync

[Calvert, Andy]

Hi Carl,

See below



-----Original Message-----
From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Carl Eugen Hoyos
Sent: 27 June 2016 10:19
To: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] ffmpeg recording RTSP stream with audio out of sync



Calvert, Andy <Andy.Calvert <at> prozonesports.com> writes:



> C:\STREAMTEST>c:\ffmpeg\ffmpeg



> -channel_layout mono



Is this option necessary to reproduce the issue?

The audio stream is mono, same issue whether I have this option or not



> -i "rtsp://172.16.210.50/RTP-Unicast_pMediaProfile4"

> -c:v copy



> -bsf:a aac_adtstoasc



Why are you using the bitstream filter?

Not exactly sure why, I seem to have more success with this option in the past so stuck with it. Maybe because I had been using older versions of ffmpeg however, would you recommend to try -c:a libvo_aacenc



> -y -t 10 -movflags faststart



Is the issue also reproducible without faststart?

Same issue with or without faststart



> "streamtest_high_30012015_102911.mp4"

> ffmpeg version N-69406-ga73c411



Please test current FFmpeg git head.

Will do



Carl Eugen



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