[FFmpeg-trac] #6238(avformat:new): Wrong first TS segment length in HLS output

FFmpeg trac at avcodec.org
Wed Mar 15 09:41:18 EET 2017

#6238: Wrong first TS segment length in HLS output
             Reporter:  pero        |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by pero):

 Thank you!

 Yes it is working without audio.
 I'm a bit stucked here, because i need the audio. The original sources are
 two IP cams:

 -rtsp_transport tcp -thread_queue_size 512 -i rtsp://X.X.X.X:555
 -rtsp_transport tcp -thread_queue_size 512 -i rtsp://X.X.X.X:556
 -map [pip] -map 1:a -c:a aac -ab 64k -c:v h264_nvenc -cbr 1 -b:v 1800k
 -maxrate 2000k -r 25 -g 100 -bf 2 -refs 4 -no-scenecut 1 -strict_gop 1
 -profile:v high -pixel_format yuv420p -preset default
 -f hls -hls_time 4 -hls_list_size 5400 -hls_flags
 +delete_segments+append_list+omit_endlist test.m3u8

 I tried to play with setpts, without success

 The weird thing is that one of the cams returns this:
 {{{Duration: N/A, start: 0.000000, bitrate: N/A}}}

 but the other:
 {{{Duration: N/A, start: 0.241000, bitrate: N/A}}}

 Is it normal?
 Can you please suggest something, what I should try to make this work with


Ticket URL: <https://trac.ffmpeg.org/ticket/6238#comment:4>
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