Re: [FFmpeg-user] Extract audio from video and use one frame as cover image
On 09-01-2021 08:06 am, Bernhard Döbler wrote: Am 08.01.2021 um 05:18 schrieb Gyan Doshi: On 08-01-2021 06:37, Bernhard Döbler wrote: I have video files. I want to extract the audio and use one single frame from the video track as cover image. The command line looks like this ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB)" -frames:v 1 -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" This is supposed to embed a frame from around second 145 as cover image. The issue is that the whole processing of the file stops after the single image was extracted and my resulting file has a length of 2:25 minutes. I want the audio file to be as long as the video. `-frames` is set to terminate the output when fulfilled. Use trim within the filtergraph. ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB),trim=end_frame=1" -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" Thank you for your answer. The console eventually reads More than 1000 frames duplicated [ipod @ 0299cb43de80] Got more than one picture in stream 0, ignoring. when I call your command as is. Inefficient, but those extra images aren't muxed into the output. That's what the ignoring msg means. You can avoid the duplication by adding `-vsync vfr`. For your workaround, mpdecimate is not relevant, only the setpts filter. Regards, Gyan ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Extract audio from video and use one frame as cover image
Am 08.01.2021 um 05:18 schrieb Gyan Doshi: On 08-01-2021 06:37, Bernhard Döbler wrote: I have video files. I want to extract the audio and use one single frame from the video track as cover image. The command line looks like this ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB)" -frames:v 1 -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" This is supposed to embed a frame from around second 145 as cover image. The issue is that the whole processing of the file stops after the single image was extracted and my resulting file has a length of 2:25 minutes. I want the audio file to be as long as the video. `-frames` is set to terminate the output when fulfilled. Use trim within the filtergraph. ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB),trim=end_frame=1" -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" Thank you for your answer. The console eventually reads More than 1000 frames duplicated [ipod @ 0299cb43de80] Got more than one picture in stream 0, ignoring. when I call your command as is. When I dump the images as individual jpg files, I see it's the same image over and over again. I searched the internet and found a posting on StackOverflow that suggested to use filter mpdecimate: https://stackoverflow.com/a/37089629/577052 Final command line that gives no warnings looks like: ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB),trim=end_frame=1,mpdecimate,setpts=N/FRAME_RATE/TB" -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Extract audio from video and use one frame as cover image
On 08-01-2021 06:37, Bernhard Döbler wrote: Hi, I saw, today, FFMpeg, finally, allows for embedding a single image as cover image into an .M4A file using the "-disposition:v:1 attached_pic" argument as explained in an answer on StackOverflow: https://stackoverflow.com/a/61015965/577052 This works very well, when I convert a .FLAC file, that already has one single frame embedded as cover, to .M4A using a command line like ffmpeg.exe -y -i "e:\01. Music.flac" -c:a aac -q:a 2 -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic -movflags +faststart "e:\01. Music.m4a" I have video files. I want to extract the audio and use one single frame from the video track as cover image. The command line looks like this ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB)" -frames:v 1 -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" This is supposed to embed a frame from around second 145 as cover image. The issue is that the whole processing of the file stops after the single image was extracted and my resulting file has a length of 2:25 minutes. I want the audio file to be as long as the video. `-frames` is set to terminate the output when fulfilled. Use trim within the filtergraph. ffmpeg.exe -y -i "e:\01. Video.mp4" -filter:v "select=between(145\,prev_pts*TB\,pts*TB),trim=end_frame=1" -c:a copy -c:v mjpeg -q:v 2 -disposition:v:0 attached_pic "e:\01. Audio.m4a" Regards, Gyan ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
