[Ffmpeg-devel-irc] ffmpeg-devel.log.20120427

[burek]

[00:40] <CIA-17> ffmpeg: 03Luca Barbato 07master * r8b97ae6484 10ffmpeg/libavformat/utils.c: 
[00:40] <CIA-17> ffmpeg: avf: fix faulty check in has_duration
[00:40] <CIA-17> ffmpeg: An invalid duration is AV_NOPTS_VALUE not 0.
[00:40] <CIA-17> ffmpeg: 03Hendrik Leppkes 07master * r949d942eef 10ffmpeg/libavformat/isom.c: 
[00:40] <CIA-17> ffmpeg: mov: support eac3 audio
[00:40] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[00:40] <CIA-17> ffmpeg: Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
[00:40] <CIA-17> ffmpeg: 03Mans Rullgard 07master * rdac78fd1d7 10ffmpeg/libavcodec/arm/asm.S: 
[00:40] <CIA-17> ffmpeg: ARM: add some compatibility macros
[00:40] <CIA-17> ffmpeg: This adds some macros simplifying Thumb and pre-v6T2 compatibility.
[00:40] <CIA-17> ffmpeg: Signed-off-by: Mans Rullgard <mans at mansr.com>
[00:40] <CIA-17> ffmpeg: 03Mans Rullgard 07master * rb692d246ea 10ffmpeg/libavcodec/arm/ (7 files): 
[00:40] <CIA-17> ffmpeg: vp8: arm: separate ARMv6 functions from NEON
[00:40] <CIA-17> ffmpeg: This is a preparation for complete ARMv6 optimisations.
[00:40] <CIA-17> ffmpeg: Signed-off-by: Mans Rullgard <mans at mansr.com>
[00:40] <CIA-17> ffmpeg: 03Mans Rullgard 07master * re4ac031233 10ffmpeg/libavcodec/arm/ (vp8dsp_armv6.S vp8dsp_init_armv6.c): 
[00:40] <CIA-17> ffmpeg: vp8: armv6 optimisations
[00:40] <CIA-17> ffmpeg: Based on patch by Ronald S. Bultje <rsbultje at gmail.com>,
[00:40] <CIA-17> ffmpeg: partially ported from libvpx.
[00:40] <CIA-17> ffmpeg: Signed-off-by: Mans Rullgard <mans at mansr.com>
[00:40] <CIA-17> ffmpeg: 03Mans Rullgard 07master * r3d11c2d76d 10ffmpeg/libavcodec/arm/vp8dsp_armv6.S: 
[00:40] <CIA-17> ffmpeg: vp8: armv6: fix non-armv6t2 build
[00:40] <CIA-17> ffmpeg: The assembler may fail to place literal pools close enough to
[00:41] <CIA-17> ffmpeg: instructions referencing them. An explicit .ltorg directive
[00:41] <CIA-17> ffmpeg: fixes this.
[00:41] <CIA-17> ffmpeg: Signed-off-by: Mans Rullgard <mans at mansr.com>
[00:41] <CIA-17> ffmpeg: 03Mans Rullgard 07master * r3527a73933 10ffmpeg/ (5 files in 3 dirs): 
[00:41] <CIA-17> ffmpeg: avutil: add av_parse_cpu_flags() function
[00:41] <CIA-17> (32 lines omitted)
[00:42] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * r76d376d99b 10ffmpeg/libswresample/swresample_test.c: 
[00:42] <CIA-17> ffmpeg: swr-test: fix declaration statement ordering.
[00:42] <CIA-17> ffmpeg: swr-test is now warning free.
[00:42] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[00:42] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * r7b2ce50701 10ffmpeg/libswresample/swresample_test.c: 
[00:42] <CIA-17> ffmpeg: swr-test: fix unused var warnings
[00:42] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[00:42] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * ra0dd81dd95 10ffmpeg/libswresample/swresample_test.c: 
[00:42] <CIA-17> ffmpeg: swr-test:indent
[00:42] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[00:42] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * rf75169b251 10ffmpeg/libswresample/swresample_test.c: 
[00:42] <CIA-17> ffmpeg: swr-test: fix pointer type warnings
[00:42] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[04:58] <Daemon404> lovely
[04:58] <Daemon404> ffmpeg fails to build with mingw/msys due to library.mak
[05:00] <Daemon404> olol, it's a problem with line endings
[05:00] <Daemon404> stupid msysgit
[05:06] <Compn> hehehe
[05:06] <Compn> ran into that once or twice :P
[05:11] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * rbbd3dc49ff 10ffmpeg/libswresample/audioconvert.c: 
[05:11] <CIA-17> ffmpeg: swr: unroll audioconvert core C function
[05:11] <CIA-17> ffmpeg: 36k->32k decicycles
[05:11] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[05:11] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * r4119fa7023 10ffmpeg/libswresample/audioconvert.c: 
[05:11] <CIA-17> ffmpeg: swr: audioconvert, mark some constants as floats.
[05:11] <CIA-17> ffmpeg: idea from avr
[05:11] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[06:06] <Compn> dang
[06:06] <Compn> http://stream-recorder.com/forum/adobe-hds-fragment-joiner-t12074.html
[06:07] <Compn> ksv coded up a adobe f4f demuxer :)
[06:07] <Daemon404> f4f?
[06:08] <Compn> stupid adobe http dynamic streaming fragmented file
[06:08] <Daemon404> oic
[06:08] <Daemon404> also lol
[06:08] <Daemon404> its written in php
[06:09] <Compn> cross-platform :P
[06:09] <Compn> ehe
[06:09] <Daemon404> it's using a regex to match hex chars
[06:09] <Daemon404> o god
[06:13] <Compn> Daemon404 : looks like you want to make an f4f demuxer for ffmpeg :)
[06:14] <Compn> i think i have samples if you want
[06:14] <Daemon404> it looks simple
[06:14] <Daemon404> i certainly dont have time right now though
[06:14] <Daemon404> moving to NYC
[06:14] <Compn> sounds like funm
[06:15] Action: Compn afk
[06:15] <Daemon404> lul
[11:20] <CIA-17> ffmpeg: 03Nicolas George 07master * re5474f5c48 10ffmpeg/doc/ (ffmpeg.texi filters.texi): 
[11:20] <CIA-17> ffmpeg: doc: fix syntax for durations and timestamps.
[11:20] <CIA-17> ffmpeg: Omitting the seconds has not worked for a long time, if ever.
[11:20] <CIA-17> ffmpeg: Omitting the minutes too is just nonsensical for a duration
[11:20] <CIA-17> ffmpeg: (it is indistinguishable from just seconds).
[12:29] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * rdcfc12e86a 10ffmpeg/libswresample/swresample_test.c: 
[12:29] <CIA-17> ffmpeg: swr-test: simplify prng code
[12:29] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[13:45] <Shimmy> Any please help me urgently: https://ffmpeg.org/trac/ffmpeg/ticket/747
[13:54] <Compn> why not use the amv-codec-tools to convert your files ?
[13:55] <michaelni> Shimmy, id love to but i have no hardware to test the validity of such encoded streams
[13:55] <michaelni> and i dont want to just write it blindly and hope it wont be totally buggy
[13:56] <Compn> michaelni : just mark it experimental and wait for bug reports ;)
[13:56] <Shimmy> What do you mean you don't have hardware
[13:56] <Compn> Shimmy : he doesnt have amv player
[13:56] <Compn> do you have amv player software he can test his encoder with ?
[13:56] <ubitux> send him a s1mp3 player :)
[13:56] <Shimmy> I will give you everything, yes, I have.
[13:56] <Compn> michaelni : do you mind testing an encoder against a software amv player ?
[13:57] <JEEB> also, I think that's just one of the Chinese "amv" formats :D (IIRC there was some other format, too)
[13:57] <Shimmy> Also take into account that it's already done, as I said in that post there is already an open source amv converter, the problem is it doens't work with the new versions of ffmpeg, I need someone to merge the encoder from that open source project (it's ffmpeg-based) into ffmpeg itself.
[13:58] <JEEB> Shimmy, as far as I read the old stuff, it wasn't exactly nicely written :P
[13:58] <JEEB> so a partial/full rewrite would be needed
[13:59] <Shimmy> I have a closed-source windows software that plays amv files, if that player plays the file, I can assum it's gonna play on my hardware (i will convert using the required parameters necessary for my device) amv support a limited range anyway, so the testing job is minor.
[14:00] <Shimmy> @JEEB what wasn't nicely written, that open source project?
[14:00] <JEEB> the amv-codec-tools thingy
[14:00] <Shimmy> aha.
[14:01] <JEEB> also, never ever underestimate testing
[14:02] <JEEB> the format has no open spec, and it's just a weirdly limited version of MJPEG + ADPCM
[14:02] <Shimmy> if i would only know C i would get into it and do it myself. I learned some C, but from learning a bit C to developing an encoder is huge distance :)
[14:02] <Shimmy> BTW, the issue, is only with the audio, it's "adpcm_ima_amv"
[14:03] <michaelni> Shimmy, ill try to look into the stuff when i have time and post a version for testing
[14:03] <Shimmy> and it has decoding support in ffmpeg, but no encoding
[14:03] <michaelni> but dunno when ive time
[14:03] <Shimmy> michalni, can i contact u privately
[14:03] <Shimmy> here in irc
[16:56] <ubitux> i'm looking at porting the -async option to an audio filter
[16:56] <ubitux> from what i can tell, it just needs the input pts, which lavfi is aware of
[16:56] <ubitux> the filter would just "scale" the audio according to this
[16:57] <ubitux> (drop samples or insert silence)
[16:57] <ubitux> am i missing something?
[16:58] <av500> insert silence?
[16:58] <av500> that would sound awesome
[16:58] <av500> or awful?
[17:00] <ubitux> i just want to move the -async option to lavfi
[17:00] <ubitux> because it's blocking for the audio filtering in ffmpeg
[17:00] <ubitux> there is also the filter reconfiguration to do afaik
[17:01] <ubitux> but async is one of the blocking thing
[17:01] <ubitux> and i want to move on on this
[17:11] <ubitux> also the 3nd thing to do (but not blocking for -af) would be to have the asetframesize filter proposed a while ago, which would add silence padding for the last frame
[17:12] <ubitux> it would simplifies the flushing in ffmpeg.c, as well as the frame writing in do_audio_out
[17:14] <saste> ubitux: what was the issue with asetframesize?
[17:14] <ubitux> dunno, i think there was a tricky poll_frame()
[17:14] <ubitux> also, it didn't add silence iirc
[17:16] <ubitux> anyway, if all of this is ported to lavfi, we would just need to have an audio configuration like abuffer=...,aresample=...,async=...,volume=...,pan=...,asetframesize=... and all the audio stuff in ffmpeg.c could be drop
[17:16] <ubitux> and we will be able to add -af, audio filtering in complex filters etc
[17:19] <ubitux> right now we have most of the features duplicated (resample, volume, channel mapping, frame sample buffering, etc)
[18:16] <CIA-17> ffmpeg: 03Nicolas George 07master * r3e1d3ebf5e 10ffmpeg/libavutil/parseutils.c: 
[18:16] <CIA-17> ffmpeg: parseutils: replace setenv() by putenv().
[18:16] <CIA-17> ffmpeg: putenv() seems to be more portable.
[19:02] <ubitux> internet is back, i can live again
[19:04] <burek> :)
[19:30] <burek> what tool can generally be used to copy metadata from one media file to another, like copy/paste
[19:40] <saste> burek: http://ffmpeg.org/ffmpeg.html#Metadata
[19:40] <saste> there is a metadata muxer/demuxer, you need some layer of scripting though
[19:41] <ubitux> when ffmpeg will support json as input metadata file, you should be able to do nasty piping with ffprobe
[19:41] <ubitux> shouldn't happen soon though
[19:42] <burek> saste, thanks :) this is really cool :)
[19:43] <burek> err.. how is this thing used? ffmpeg -i ... -f metadata out.txt ?
[19:44] <ubitux> i'd say you extract the metadata with ffprobe
[19:44] <ubitux> and then convert it to a ffmpeg cmd line with -metadata title=... or stuff like that
[19:44] <burek> oh.. :)
[19:45] <saste> burek: indeed the metadata demuxer/muxer is not documented, only the supported format
[19:45] <saste> i suppose you need to use the demuxer for extracting metadata, then use the muxer for writing to a file, using ffmpeg -codec copy -acodec copy
[19:45] <saste> never done that so i can only guess
[19:46] <burek> -f metadata is invalid, or I'm using an old ffmpeg?
[19:46] <saste> what about -f ffmetadata?
[19:46] <burek> :beer: :)
[19:47] <ubitux> ah nice thing
[19:47] <burek> in the docs, there is "metadata", so I tried that first :)
[19:48] <saste> ubitux: for *reading* from JSON you need a parser, writing that in ffmpeg would be a bit annoying (same for xml)
[19:48] <saste> unless you rely on external libs, and bloat dependencies
[19:48] <ubitux> it was just an insane suggestion
[19:48] <ubitux> don't take it too seriously ;)
[19:49] <burek> hm, I tried ffmpeg -i ... -f ffmetadata out.txt
[19:49] <burek> but it just outputs ;FFMETADATA1 line
[19:49] <burek> is this a placeholder for future mux/demux or it is a working one?
[19:51] <CIA-17> ffmpeg: 03Clément BSsch 07master * re40981b8c4 10ffmpeg/libavformat/microdvddec.c: lavf/microdvd: set packet duration.
[19:51] <CIA-17> ffmpeg: 03Clément BSsch 07master * r423b827668 10ffmpeg/ (6 files in 3 dirs): 
[19:51] <CIA-17> ffmpeg: lavc: add MicroDVD decoder.
[19:51] <CIA-17> ffmpeg: Based on my MicroDVD->ASS conversion code from MPlayer
[19:51] <CIA-17> ffmpeg: (sub/subassconvert.c).
[19:52] <saste> burek: works here, are you sure you *have* metadata in the file?
[19:52] <saste> also from what i see the demuxer only extracts metadata in the format, not in the streams
[19:52] <burek> oh I see, this one is in the stream, you're right
[19:53] <burek> it's ogg audio file, and the vorbis audio contains meta
[19:53] <saste> ah... so it's more complicated
[19:54] <burek> well, this is also something useful :)
[19:54] <burek> at least for some meta I don't have to manually do copy/paste :)
[19:56] <saste> how do you set metadata to a specific stream?
[19:56] <saste> i suppose ffmpeg can do that, but i don't know how
[19:57] <saste> then you can always parse the ffprobe output and insert metadata to the right place, via scripts
[19:57] <burek> I tried -map_metadata
[19:58] <saste> yep, that's even better
[20:00] <burek> oh now I get it, first the output is specified and then input :)
[21:40] <CIA-17> ffmpeg: 03Stefano Sabatini 07master * r6f3b1d7f86 10ffmpeg/libavfilter/vf_bbox.c: lavfi/bbox: add missing space between pts and x1 values in the log
[21:40] <CIA-17> ffmpeg: 03Stefano Sabatini 07master * r6b55aab01a 10ffmpeg/libavfilter/ (5 files): 
[21:40] <CIA-17> ffmpeg: lavfi: create buffer reference in filters which need to access the ref later
[21:40] <CIA-17> ffmpeg: Also add internal function ff_null_start_frame_keep_ref().
[21:40] <CIA-17> ffmpeg: Fix crash when a following filter (e.g. settb) will unref the reference
[21:40] <CIA-17> ffmpeg: passed by start_frame(), and then the reference is accessed in
[21:40] <CIA-17> ffmpeg: end_frame() through inlink->cur_buf.
[21:58] <Compn> anyone remember the current status of the 3ivx decoder ?
[21:58] <Compn> er 3iv1
[21:58] <Compn> last i remember it was disabled because it slowed down decoding of mpeg4 ?
[21:59] <Compn> i'm wondering if i should make it into a small ffmpeg task 
[22:00] <Compn> michaelni : what should be done? split it out as a seperate file ?
[22:00] <Compn> mpeg4video.h:#if 0 //3IV1 is quite rare and it slows things down a tiny bit
[22:06] <michaelni> if the code still works when enabled then it could somehow be optimized by using always_inline
[22:31] <CIA-17> ffmpeg: 03Matthieu Bouron 07master * r73c1e3baad 10ffmpeg/libavfilter/asrc_abuffer.c: 
[22:31] <CIA-17> ffmpeg: asrc_abuffer: return EAGAIN if no frame is available
[22:31] <CIA-17> ffmpeg: Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
[22:47] <CIA-17> ffmpeg: 03Stefano Sabatini 07master * ra853e88af2 10ffmpeg/libavfilter/vf_tinterlace.c: lavfi/tinterlace: fix doxy in copy_picture_field()
[22:47] <CIA-17> ffmpeg: 03Stefano Sabatini 07master * rcf9f7e40cc 10ffmpeg/libavfilter/vf_tinterlace.c: lavfi/tinterlace: use avfilter_unref_bufferp()
[22:47] <CIA-17> ffmpeg: 03Stefano Sabatini 07master * r18c6bd098b 10ffmpeg/libavfilter/vf_tinterlace.c: lavfi/tinterlace: remove unnecessary NULL check in start_frame()
[22:57] <ubitux> awesome downsampler: wget http://www.ioccc.org/2011/2011.tar.bz2 && tar xf 2011.tar.bz2 && cd 2011/akari && make
[22:57] <ubitux> then ./akari example.ppm > out.ppm
[22:58] <ubitux> or even ./akari akari.c > akari2.c
[23:00] <Compn> michaelni : well i added 3iv1 decoder as a task to http://wiki.multimedia.cx/index.php?title=Small_FFmpeg_Tasks
[23:00] <Compn> maybe someone will pick it up
[23:00] <ubitux> holy shit we can build akari2.c
[23:01] Action: Compn wonders why libav hasnt removed it so far :P
[23:02] <CIA-17> ffmpeg: 03Diego Biurrun 07master * r1b4f085772 10ffmpeg/.gitignore: 
[23:02] <CIA-17> ffmpeg: gitignore: replace library catch-all pattern by more specific patterns
[23:02] <CIA-17> ffmpeg: Ignoring all files that start with the name of a library matches some
[23:02] <CIA-17> ffmpeg: files that are not generated. So replace libfoo/libfoo* with patterns
[23:02] <CIA-17> ffmpeg: for static and shared libraries, pkg-config and version files.
[23:02] <CIA-17> ffmpeg: 03Martin Storsjö 07master * rdf8aa4598c 10ffmpeg/libavformat/mpegts.c: 
[23:02] <CIA-17> ffmpeg: mpegts: Make sure we don't return uninitialized packets
[23:02] <CIA-17> ffmpeg: This fixes crashes, where the demuxer could return 0 even
[23:02] <CIA-17> ffmpeg: if the returned AVPacket isn't initialized at all. This
[23:02] <CIA-17> ffmpeg: could happen if running into EOF or running out of probesize
[23:02] <CIA-17> ffmpeg: with non-seekable sources.
[23:02] <CIA-17> ffmpeg: Signed-off-by: Martin Storsjö <martin at martin.st>
[23:03] <CIA-17> ffmpeg: 03Michael Niedermayer 07master * r28c5775183 10ffmpeg/: (log message trimmed)
[23:03] <CIA-17> ffmpeg: Merge remote-tracking branch 'qatar/master'
[23:03] <CIA-17> ffmpeg: * qatar/master:
[23:03] <CIA-17> ffmpeg:  mpegts: Make sure we don't return uninitialized packets
[23:03] <CIA-17> ffmpeg:  gitignore: replace library catch-all pattern by more specific patterns
[23:03] <CIA-17> ffmpeg: Conflicts:
[23:03] <CIA-17> ffmpeg:  .gitignore
[00:00] --- Sat Apr 28 2012