Mixing
How to set sample_aspect_ratio while muxing a video stream?
I am trying to mux a video stream and an audio stream into an mp4 file, whereas the target file has an inappropriate sar (unlike the source one).
The following methods don't make any sense.
1、Using avcodec_copy_context(). It cannot set the target sar as the source.
2、Setting sar directly of the target stream. The target sar is not the one I've set in the video stream before writeHeader.
The version I used is 2.8.1.
ffmpeg mux sar
asked Nov 21 '18 at 4:51
li huli hu
235
add a comment |
I am trying to mux a video stream and an audio stream into an mp4 file, whereas the target file has an inappropriate sar (unlike the source one).
The following methods don't make any sense.
1、Using avcodec_copy_context(). It cannot set the target sar as the source.
2、Setting sar directly of the target stream. The target sar is not the one I've set in the video stream before writeHeader.
The version I used is 2.8.1.
ffmpeg mux sar
asked Nov 21 '18 at 4:51
li huli hu
235
Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10
add a comment |
I am trying to mux a video stream and an audio stream into an mp4 file, whereas the target file has an inappropriate sar (unlike the source one).
The following methods don't make any sense.
1、Using avcodec_copy_context(). It cannot set the target sar as the source.
2、Setting sar directly of the target stream. The target sar is not the one I've set in the video stream before writeHeader.
The version I used is 2.8.1.
ffmpeg mux sar
asked Nov 21 '18 at 4:51
li huli hu
235
I am trying to mux a video stream and an audio stream into an mp4 file, whereas the target file has an inappropriate sar (unlike the source one).
The following methods don't make any sense.
1、Using avcodec_copy_context(). It cannot set the target sar as the source.
2、Setting sar directly of the target stream. The target sar is not the one I've set in the video stream before writeHeader.
The version I used is 2.8.1.
ffmpeg mux sar
ffmpeg mux sar
asked Nov 21 '18 at 4:51
li huli hu
235
asked Nov 21 '18 at 4:51
li huli hu
235
edited Nov 27 '18 at 3:12
li hu
asked Nov 21 '18 at 4:51
li huli hu
235
asked Nov 21 '18 at 4:51
li huli hu
235
asked Nov 21 '18 at 4:51
li huli hu
235
235
Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10
add a comment |
Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10
Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10
add a comment |
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Perhaps you should update your FFmpeg first, many things changed since, 2.8.1 is quite old.
– the kamilz
Nov 23 '18 at 9:00
Yes, you're right. When updated FFMPEG to 3.4.1, everything goes well.
– li hu
Nov 27 '18 at 3:10