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I have video files with [.saf] extension.
This file is using for "Seachagne" video server. And can play with MATROX hardware. Problem is, I have to make audio normalization all of these files.
With ffprobe, It detected,
Stream #0:0[0x1e0]: Video: mpeg2video (High), yuv422p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], 10000 kb/s, 29.97 fps, 29.97tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x2b]: Subtitle: dvd_subtitle
I heard that, the stream #0:1 is normal PCM audio stream. So, I'm trying to copy #0:1 after change stream ID
But, when I tried, ffmpeg says, have to choose an encoder manually.
How can I make it? or, Is there are any idea for that?
Thanks.
Andrei Kim
Posted 2016-11-07T08:31:52.990
Reputation: 51
2Stream 0:1 is not an audio stream of any type. Unless you have skipped the readouts of other streams, there is no audio stream. – Gyan – 2016-11-07T11:32:33.380
That's way I'm looking for how to change the stream ID.
This is 24bit UnCompressed PCM audio. I attached a link to download the clip. If you have any advice, please let me know.
http://webhdd.eqmaker.kr:8086/share.cgi?ssid=0lhy8IO
Looks like the audio is a private stream, and tagged correctly as per looking at strings in the file. You could extract all non video packets and concat them and try to interpret them as audio. – Gyan – 2016-12-01T18:38:41.783
And 302M audio is a pair of stereo streams. – Gyan – 2016-12-01T18:39:23.157
Hi Mulvya. That's right. So I'm looking for a way how to extrect non video packets with ffmpeg. Do you have any advice? – Andrei Kim – 2016-12-05T07:17:43.390
That can be done.
ffmpeg -c:s text -i file.saf -c:s copy -map 0:s -f data non-video-data.binYou can then try to parse this output. – Gyan – 2016-12-05T07:20:12.013