[Ffmpeg-devel-irc] ffmpeg.log.20121114

[burek]

[01:18] <retsofaj> A newbie question that I'm hoping isn't just LMGTFY&
[01:18] <retsofaj> I'm doing a command line encode from a VOB that I extracted from a ripped DVD using mplayer
[01:18] <retsofaj> ffmpeg -i ba77-01.vob -filter:v [in]yadif[out] -codec:v libx264 -crf 25 -codec:a copy -t 10 ba77-01-ffmpeg.mp4
[01:19] <retsofaj> ffmpeg finds all the streams that I'm expecting, and says that the stream mapping is:
[01:19] <retsofaj> Stream #0:0 -> #0:0 (mpeg2video -> libx264)
[01:20] <klaxa> retsofaj: before you paste it in the channel
[01:20] <retsofaj> Go with pastebin?
[01:20] <klaxa> paste everything, input and ffmpeg output on pastebin or something
[01:20] <klaxa> yeah
[01:20] <retsofaj> ack.
[01:21] <retsofaj> http://pastebin.com/gWgmVkkj
[01:21] <retsofaj> Short version is: where did my audio go?!
[01:21] <retsofaj> (I'm also worried about that "ac-tex damaged", "Warning MVs not available", and "concealing 1215 DC, 1215 AC, 1215 MV errors in I frame"
[01:22] <klaxa> well it... should be there?
[01:22] <klaxa> >Stream #0:1 -> #0:1 (copy)
[01:22] <retsofaj> That's what I was figuring, but...
[01:23] <klaxa> just to be sure try to reencode the audio and see if it's still missing
[01:23] <retsofaj> http://pastebin.com/Vf9ivU67
[01:24] <retsofaj> ffprobe seems pretty certain that there's only one stream in the output
[01:25] <klaxa> hmm... maybe wait for one of the devs or more advanced users to show up :/
[01:26] <retsofaj> klaxa: thanks for helping me see that there's nothing blatantly obviously wrong!
[01:26] <klaxa> what you could try (which is just a workaround) is muxing the new video with the old audio
[01:26] <klaxa> might procude what you want, isn't really the straighest way to the goal
[01:26] <retsofaj> I'm hoping to avoid that, if I can
[01:26] <retsofaj> This is already the twisty path :/
[01:27] <retsofaj> HandbrakeCLI doesn't have a padding filter, but has really nice chapter extraction features...
[01:27] <retsofaj> & and I have sources with different DAR and PAR, so I need to pad
[01:27] <retsofaj> ffmpeg can do anything (except decomb, I think) but is tough to figure out
[01:28] <retsofaj> <sigh/> Win a few; lose a few
[01:28] <klaxa> wait... didn't we have this issue like... yesterday?
[01:28] <klaxa> did you try piping raw output from ffmpeg to HandBrakeCLI?
[01:29] <retsofaj> That's about two steps away according to my "plan"& for now I was trying an ffmpeg-only solution, since it should be able to do a lot of what I want
[01:31] <retsofaj> Given the choice, I'm figuring that a toolchain with fewer tools is better, and the decomb filter isn't that much better than ffmpeg's ydif
[01:33] <Myrsloik> retsofaj: they're for very different kinds of material
[01:35] <retsofaj> Myrsloik: Can you explain a litre more?  My understanding is that ffmpeg is the "I can do anything" and HB is "I do DVDs" & but that essentially they're both demux -> encode -> mux tools
[01:36] <Myrsloik> I meant yadif vs decomb
[01:36] <retsofaj> HB adds in the DVD navigation element to the chain
[01:36] <retsofaj> Ah; oops
[01:36] <Myrsloik> handbrake I've never used
[01:36] <retsofaj> Visually they're& close?
[01:36] <retsofaj> (the filters, I mean)
[01:37] <Myrsloik> or never mind, I forgot that handbrake's decomb is different from the one in avisynth
[01:37] <retsofaj> I'm just getting into this, and I'm already getting pretty confused about exactly which tool does what, and how well :/
[01:47] <carbide> Hi everyone, I'm trying to compile FFMPEG for Ubuntu 12.04 using the guide on ffmpeg.org and I run into an error at the final step: hash x264 ffmpeg ffplay ffprobe  the error says it cant find ffmpeg, ffplay, or ffprobe
[01:50] <carbide> is hash a package I need to install? Sorry I'm very new to Ubuntu/Linux
[07:42] <sebouh> Hi everyone. Is anyone available for a little support?
[07:49] <grepper> sebouh: its best just to ask your question and hang around
[07:53] <sebouh> thanks grepper
[07:53] <sebouh> I'm having the following err
[07:53] <sebouh> http://pastebin.com/hu425xa9
[07:53] <sebouh> trying to re-stream a vlc stream
[07:53] <sebouh> vlc command: :sout=#transcode{vcodec=h264,vb=300,scale=0.25,acodec=mp4a,ab=128,channels=2,samplerate=22050}:rtp{mux=ts,sdp=rtsp://:8554/test.sdp} :sout-keep
[07:59] <sebouh> so, that's basically what I have. Problem is I've been hanging around for 3 days with no answer :)
[08:00] <grepper> sorry, don't know much about rtsp://
[08:00] <grepper> maybe try the mailing list/forum in /topic
[08:00] <grepper> or ask another time of day, its 2:00 am here for example and I'll off to bed :)
[08:00] <sebouh> alright, thanks.
[08:01] <sebouh> sure :)
[08:41] <jacobs1> Hi, is this a good place to ask ffserver questions also ?
[08:41] <retard> i don't know, i've never tried before
[08:46] <s4ber> Hello, im trying to do ./configure for ffmpeg ver. 0.11.2, and I get an error message saying "libopenjpg not found" eventhough i have it installed. Any ideas for the path or something that could be wrong?
[10:43] <brontosaurusrex> how do i copy/paste one video and one audio filel to new muxed file correctly? (in.avi, in.wav > out.avi)
[10:45] <brontosaurusrex> nm ...
[10:48] <ubitux> ffmpeg -i in.avi -i in.wav -map 0 -map 1 -c copy out.avi?
[11:02] <brontosaurusrex> ubitux: there a need for map
[11:03] Action: ubitux parse error
[12:35] <burzum> when writing meta data to files using ffmpeg, is there a way to set the encoding?
[12:36] <burzum> my php script is using shell_exec and sets "chcp 850", this sets the code page to utf8, the unit test file is also utf8 encoded but if i look at the file foobar2000 the special chars are messed up
[12:43] <divVerent> 850 is utf-8?
[12:43] <divVerent> chcp 65001 is utf-8
[12:59] <burzum> ive got a wrong info then :/ let me try
[13:01] <burzum> no still no success
[14:18] <mads-> Hi. If I have a video can I then use ffmpeg to say "I want this video, but only the first 30 minutes"?
[14:39] <retard> mads-: yes
[14:41] <mads-> retard, thanks :)
[14:41] <retard> mads-: any time
[15:20] <maxxer> hi. is it possible to convert a ppt or pdf to vob?
[15:23] Last message repeated 1 time(s).
[15:36] <mads-> maxxer, I guess. You can also use a middle step. I know you can convert pdf and ppt to images and I know you can make a movie from images in ffmpeg
[15:39] <maxxer> mads-, good point...
[18:56] <elkng> I encoded video using 2 pass sheme and used parameter "-vb 1500k" to make its bitrait but when I looked at the resulted video it says: "bitrate: 582 kb/s", why there is no 1500 ? I tryed to encode it with other options ""-vb 800k" "-vb 1000k" and
[18:56] <elkng>  "-vb 1200k" but all they generates file with "bitrate: 582 kb/s"
[18:59] <sacarasc> Is this on pass 1 or pass 2?
[20:26] <dbro> Hey all! I'm porting the muxing example to Android for live A/V encoding. My AVPackets have identical pts, dts, duration as the original example, but the audio timing in the output file is all wrong. Thanks in advance for helping a FOSS brother out
[20:26] <dbro> my output: http://dbro.pro/public/ffmpeg/ffmpeg_error_example.mp4
[20:53] <dbro> if anybody could lend a tip re: properly setting AVPacket PTS, DTS, Duration during encoding, that would be immensely helpful. I sense that's my failing here
[20:54] <fasta> Why are there no -dev packages for Ubuntu?
[21:54] <burek> fasta, ask in ubuntu's support channel?
[22:13] <jacobs1> Hi, am tryig to use ffserver to stream from android, I am using libx264 but ffmpeg prints this error: broken ffmpeg default settings detected, it seems that i am missing the preset files, how do I use them ?
[22:43] <kode54> when was multiplexing ac3 into mp4 added?
[22:44] <kode54> apparently after 1.0, since that's what I have installed, and it doesn't support it
[22:57] <kode54> bah
[22:57] <kode54> still doesn't work
[22:57] <kode54> I'll just translate to mkv
[22:57] <kode54> what codec do I need to translate eia_608 subtitles into?
[22:58] <kode54> bah, not supported at all
[22:59] <kode54> that codec was what was blocking me, disregard the ac3 thing
[00:00] --- Thu Nov 15 2012