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Jul
16
comment FFmpeg : Error occurred while encoding audio stream from ac3 to aac
Your source audio is 448kbps in 6 channels i.e. ~75kbps per channel, and your target codec is AAC (a lossy codec), so it won't be lossless. Most you can do is increase the target bitrate to something like 192k or higher from 128k. You'll, of course, lose the channel separation from 6 to 2.
Jul
15
comment FFmpeg : Error occurred while encoding audio stream from ac3 to aac
Try adding -a:c 2 after -b:a 128k
Jul
11
comment How to encode video to profile high using ffmpeg?
Answer posted. Glad it worked out.
Jul
11
answered How to encode video to profile high using ffmpeg?
Jul
11
comment How to encode video to profile high using ffmpeg?
There you go. the ffmpeg build you have uses libx264 compiled for 10-bit. Apparently one can only build with support for either 8-bit OR 10-bit. So, you'll need a build where libx264 supports 8-bit. Now, the archive that you downloaded includes separate ffmpeg builds for both 8-bit and 10-bit. Can you confirm if you aren't actually running the 10-bit version. And if the build compiler has made a mistake, just download the latest iteration.
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?