Dear All,
I have the following video klv.mpeg, composed by two streams, a video stream
and a klv data stream. As you can see:
[mpegts @ 00000146ceeaaec0] start time for stream 1 is not set in
estimate_timings_from_pts
Input #0, mpegts, from 'klv.mpeg':
Duration: 00:01:30.80, start: 0.500000, bitrate: 1347 kb/s
Program 1
Stream #0:0[0x3e8]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, bt470bg, progressive), 640x480 [SAR 1:1 DAR 4:3], 30 fps, 30 tbr,
90k tbn, 60 tbc
Side data:
cpb: bitrate max/min/avg: 1000000/0/0 buffer size: 1835008 vbv_delay: N/A
Stream #0:1[0x90]: Data: klv (KLVA / 0x41564C4B)
I am trying to preserve the klv data stream when converting it to mp4 but it
seems imposible.
1. The first thing I am trying is to try to copy the data codec with the
following command:
ffmpeg -i klv.mpeg -map 0:v -vcodec h264 -map 0:a? -acodec aac -map 0:d? -codec
copy output.mp4
But it results in the following error:
[mp4 @ 000001ff0d8c8fc0] Could not find tag for codec klv in stream #1, codec
not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?):
Invalid argument
2. The second thing that I am trying is to convert just the video and audio
with the same command as above without the data stream.
ffmpeg -i klv.mpeg -map 0:v -vcodec h264 -map 0:a? -acodec aac output.mp4
Then i extract just the klv with the following command:
ffmpeg -i klv.mpeg -map 0:d -codec copy -f data output.klv
After that I try to join the output.mp4 and the output.klv with:
ffmpeg -i output.mp4 -i output.klv -map 0:v -map 0:a? -map 1:d? final.mp4
But the error is:
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000288d7b2c040] Format mov,mp4,m4a,3gp,3g2,mj2
detected only with low score of 1, misdetection possible!
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000288d7b2c040] moov atom not found
prueba.mp4: Invalid data found when processing input
I tried to use the -movflags faststart as I have read also but with no
successfull result.
Is there anyway to do this?
A lot of thanks in advance
P Please consider the environment before printing this e-mail.
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