On 2/25/15 11:00 AM, Deron wrote:
I'm trying to generate a number of HLS streams from a single source
including using the new webvtt for cc.
The following command:
ffmpeg -i test.ts -vn -f hls -hls_segment_filename "a.%d.ts" -y "a.m3u8"
Works as expected, but
ffmpeg -f lavfi -i "movie=test.ts[out0+subcc]" -vn -sn -f hls
-hls_segment_filename "a.%d.ts" -y "a.m3u8"
Fails with:
Input #0, lavfi, from 'movie=test.ts[out0+subcc]':
Duration: N/A, start: 9602.931211, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
Stream #0:1: Subtitle: eia_608
Output #0, hls, to 'a.m3u8':
Output file #0 does not contain any stream
I get that I surpressed the video stream, and the audio is merged with
it. How do I get it out without changing the input? I ultimately need
to generate multiple streams including cc from a single input, so I
can't remove cc from the input.
Thanks,
Deron
After playing with this for several more hours, I'm no closer than
before. Simplified, what I need is to turn:
ffmpeg -f lavfi -i "movie=test.ts[out0+subcc]" ...
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
Stream #0:1: Subtitle: eia_608
Into something like this:
Stream #0:0[0x31]: Video: mpeg2video (Main), yuv420p(tv), 1920x1080
[SAR 1:1 DAR 16:9], max. 24000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn,
59.94 tbc
Stream #0:1[0x34]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
Stream #0:2: Subtitle: eia_608
Is there some filter or method to break that rawvideo stream into
independent video and audio streams?? The ultimate goal is to have a
single command that does something like:
ffmpeg -f lavfi -i "movie=test.ts[out0+subcc]" <hi res video and cc
parameters> "video.hi.m3u8" <low res video parameters> "video.low.m3u8"
<audio only parameters> "audio.m3u8"
Thanks,
Deron
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