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  • 0 posts edited
  • 2 helpful flags
  • 10 votes cast
Jul
10
comment How to encode video to profile high using ffmpeg?
Ok. Run "ffmpeg -h encoder=libx264 > x264.txt" and paste the line from that textfile starting with 'Supported pixel formats'
Jul
10
comment How to encode video to profile high using ffmpeg?
Try ffmpeg -i 50_Cent...mp4 -c:v libx264 -crf 23 -profile:v high -pix_fmt yuv420p -c:a copy arvind34.mp4 2> log.txt --- and paste log.txt here
Jul
10
comment How to encode video to profile high using ffmpeg?
Can you post the entire command you used? And also the output of "ffprobe -i <yourinputfile>"
Jul
10
comment How to encode video to profile high using ffmpeg?
Like the error message says, use "-pix_fmt yuv420p" and place it after "-profile:v high"
Jul
9
comment Losing audio in re-encoding with ffmpeg
And to redirect to a file suffix "2> logfile.txt" to your command like this "ffmpeg -i ..... -y <output> 2> logfile.txt".
Jul
9
comment Losing audio in re-encoding with ffmpeg
1) add a '-t 5' after -i <filename>. The console output should be small enough for complete capture. 2) if that's too big, run ffprobe -i <filename> 3) your audio bitrate is roughly 384 kbps. Seems like AC-3 6 ch. I'm not too sure, but I don't think ISO MP4 container takes AC-3. You may have to encode audio to AAC.
Jul
7
awarded  Taxonomist
May
16
comment Getting a transparent image from a bmp with alpha
You can do it in Photoshop. See the selected answer here: graphicdesign.stackexchange.com/questions/2231/…
May
7
comment Putting a Lower bitrate of my video stream in my current mp4 container
Use -map 1:v instead of -map 1 to induct only the video stream from the 2nd file.
May
5
comment In affter effect cs 6, I don't know why i cannot use mask with effects
What exactly are you trying to do? Can you post a relevant screenshot or two?
Apr
30
awarded  Custodian
Apr
30
reviewed Approve FFMPEG: Why does the concat filter cause loss of a/v sync/lipsync?
Apr
29
awarded  Yearling
Apr
28
comment Creating a stop motion vieo?
No. On checking source, I see that it is a Flash object. I have Flashblock on and I usually get a button indicating disabled flash objects. No such thing here. Anyway, I see the link in the source. Thanks.
Apr
28
answered How to DISABLE--NOT REMOVE subtitle tracks from an MKV file from the command line?
Apr
28
comment FFMPEG: Why does the concat filter cause loss of a/v sync/lipsync?
Glad it worked out. Added answer. I'm not a coder or part of ffmpeg. I also don't work that much with streaming media, but in my video editing work, I use ffmpeg fairly regularly for conversions and other sundry work, so I've encountered these common issues before.
Apr
28
answered FFMPEG: Why does the concat filter cause loss of a/v sync/lipsync?
Apr
27
comment Creating a stop motion vieo?
I don't see a link and I don't see any edit indicator. ??
Apr
27
comment FFMPEG: Why does the concat filter cause loss of a/v sync/lipsync?
Why use mp4box to split and concat? ffmpeg offers segment and concat options as well. Split using "-f segment -segment_time 10" and end with "360a-a%03d.mp4". Then create a text file with one entry on each line like "file '360a-a001.mp4", interleaving the entries in the correct order. Then join using -f concat -i text.txt and also with -flags +genpts -async 1
Apr
25
comment FFMPEG: Why does the concat filter cause loss of a/v sync/lipsync?
Can you post the commands you used? Both MP4Box and ffmpeg.