transcoding: update to ffmpeg 2 #323
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This could still be spammy if the signal isn't clean and keeps going in and out. But that's just tough luck I guess!
This works fine for most native compilations, so saves spec'ing anything else.
I don't actually check for valid MC group address, I simply try and add group and just warn if it fails (but carry on anyway).
…recorded. Fixes #1884.
I was not properly checking completion on table completion and CAT processing was not marking that table as complete (ever).
…ion. Fixes #1898.
This is useful for validating new code against older versions (and newer).
This occurs where compressing small, already compressd files, typically images. I could avoid compression of very small (or already compressed) files. But its simple to keep things uniform and fixing this makes sense anyway!
linuxdvb: fix typo in diseqc toneburst switch setting. Fixes #1856
This affects IPTV where there is only 1 input, if 2 services have the same PIDs then both services were receiving each others packets and causing a mess! I think later on I should really remove the transport list from the input and have it on the mux? I think I did it this way to keep some things simpler, but it's caused confusion here. This should fix #1875.
At the moment the configuration is global so starting another mapping will override existing config.
…is Linux specific.
src/descrambler/cwc.c:493:11: error: comparison of unsigned expression < 0 is always false [-Werror,-Wtautological-compare]
if (len < 0) return -1;
~~~ ^ ~
- works with same hardcoded values (needs to setup) - setup via gui is missing
src/descrambler/capmt.c:485: warning: comparison is always false due to limited range of data type src/descrambler/capmt.c:487: warning: comparison is always false due to limited range of data type src/descrambler/capmt.c:538: warning: comparison is always false due to limited range of data type src/descrambler/capmt.c:549: warning: comparison is always false due to limited range of data type
…ures.h is Linux specific
…() is not available
Fixes #1897
ghost
assigned 
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This will break things on older systems. So it needs more work. |
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Hello, |
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I got the same error as pvagner. Using Debian. |
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With ffmpeg 1.X or 2.X we currently have issues transcoding audio. The problem is that sample format of input format is not supported by the output encoders. I haven't looked how older versions of ffmpeg or libav handled that but we should also use libavcodec functionality to compute and properly align buffers for storing the audio data and also use svresample to adjust the sample format. This is my first attempt with ffmpeg so I am really slow at figuring things out. I don't know if I will be able to turn this theory into usefull code but I think we should make the audio transcoding work similar how video transcoding is done now. This is currently failing even with ffmpeg 1.1 which appears as supported according to the ./configure checks. |
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I was playing with this as well, may I ask how you are sure it is an input format ? I have been working to understand the new FFMpeg as well, and making changes to use the AVFRAME structures and ffmpeg malloc's, new audio4 calls etc. |
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I am at the point where the FFMpeg calls video and audio decode calls return -22 but not sure what/where that error means ? 2014-02-06 17:44:03.698 transcode: 1:MPEG2VIDEO 1280x720 ==> VP8 854x480 2014-02-06 17:44:03.699 transcode: 2:AC3 ==> VORBIS 2014-02-06 17:44:03.826 transcode: Unable to decode video (-22) 2014-02-06 17:44:04.211 transcode: Detected framedrop in audio 2014-02-06 17:44:04.211 transcode: Unable to decode audio return (-22) 2014-02-06 17:44:04.211 transcode: Unable to decode audio len (0) 2014-02-06 17:44:23.700 webui: Stop streaming /stream/channel/e4c6a5f90633ca17e1b706706d919d56?transcode=1&mux=webm&acodec=VORBIS&vcodec=VP8&scodec=NONE&resolution=480&bandwidth=0&language I also need to track back why the output codecs are getting mixed away from x264/aac this is with git versions of ffmpeg/tvheadend from less than a week ago |
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I am having issues transcoding audio even with ffmpeg 0.10 and ffmpeg 1.1. I don't have error message with me at this time however I have found out that decoding mpeg2 audio results in s16 sample format audio. This sample format is not supported by the aac nor vorbis encoders. openning the either of these codecs resulted in a sample format invalid or not supported errors. Also I have noticed some warnings that the data is not properly aligned and it's why I assume audio transcoding needs some work and the way on how to fix sample format issue is by using libswresample I guess. |
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@pimzand Dropping this, transcoding may have to be removed for licensing reasons. |
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