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2013-09-06source/sox: correctly extend xs for try_to_fail_harder
Singleton methods tend to be bad like this. TODO: write tests for this.
2013-09-01source/{av,ff}: probe harder for audio in weird containers
Some containers (e.g. large VOBs) are not easily probed and require additional options for avprobe/ffprobe to find audio streams. We do this by looping and increasing the duration/size of the probe to find new audio streams. This seems to work reasonably well for some DVD rips I have until seeking is required. This breaks if the seek point (including seeks for source effects) exceeds the avprobe/ffprobe -analyzeduration. Anyways, I recommend extracting the audio stream (without transcoding) out of the VOB container as the best way to go. Something like: avconv -analyzeduration 2G -probesize 2G \ -i input.vob -vn -sn -c:a copy -map 0:$STREAM_NR output.ext
2013-08-30av_ff_common: fix undefined var in astream fallback
This is reproducible on a video file with a mono audio stream when attempting playback in stereo.
2013-08-29remove "encoding: binary" header use
We don't need it since IO#read(bytes, buf) will convert to ASCII-8BIT anyways. Everywhere else, we ensure path names are already binary. We do this mainly at the client layer before using Shellwords to escape the paths. We also must be careful about parsing output from soxi/avprobe which can show us metadata in whatever encoding is in the file. We must still handle data from parsing command output as binary, as the encoding of file metadata tends to vary. This also should buy us Syck compatibility for Ruby 1.9.3 users on Debian systems where Ruby 1.9.3 still uses Syck.
2013-08-28add license/copyright headers/footers to all files
All files we distribute in the tarball need to have a copyright/license specified for Savannah. We don't need the example state file anymore.
2013-08-27av_ff_common: zero samples on streams of unknown length
It's possible to get zero samples when playing streams of unknown length (e.g. over Icecast over HTTP)
2013-08-26av_ff_common: :nodoc: this constant and add TODO item
We expose no public API, so avoid cluttering users disk space with useless ri/rdoc and avoid cluttering the web with HTML nobody will read.
2013-08-26source/sox: cleanup error handling, quiet redundant warnings
Showing the warning for the same file over and over again is annoying when seeking a file handled by avconv/ffmpeg, so stop doing it. While we're at it, the error handling for __load_comments is totally redundant (absent of race conditions if another process modifies the file). However, if we do hit races, all the other soxi invocations would be racy, too; but we really just shouldn't care about such a corner case in here.
2013-08-26add lightly-tested ffmpeg support
Since ffmpeg/ffprobe are wrappers around their libav-variants, I haven't had the chance to actually test with "real" ffmpeg, but the usage is probably similar enough to not matter.
2013-08-26source/sox: bail out if zero samples are detected
soxi may not handle some files correctly and detect zero samples without error-ing out. If sox can't detect the sample count or the file is really empty, then there's no point trying futher and we'll fall back to avconv.
2013-08-26player: flesh out multi-source in protocol/sourceedit
We should be fully-capable of managing any number of options to try sources in.
2013-08-26cleanup multi-source handling between sox and av
This should better prepare us to make "source ed" into "source <av|sox> ed" and set per-source priorities. We also now treat @env consistently for all per-source commands (such as soxi/avprobe) so we can be sure we're using the same installation of sox or libav if using a non-standard PATH, or if we want to set AV_LOG_FORCE_NOCOLOR
2013-08-26process (qx): disambiguate err/err_str, add no_raise
I forgot :err is already handled by Process.spawn, so split out the functionality into err_str where we want to use it. Also, add a :no_raise flag which will allow us to better handle avprobe/soxi calls which can fail and avoid needless exceptions.
2013-08-26process: remove redundant "xs" method
Shellwords.join is an identical method and there's no reason not to use it.
2013-08-25source/av: handle multiple audio streams w/ proper sample rate
We need to tell sox to use and resample to the _player_ format instead of the source format. Otherwise 48000 Hz audio (common for video?) sounds very slow when attempting to play back on the default 44100 Hz. It is also likely preferable to choose the audio stream which matches the player channel count instead of letting sox automatically invoke the remix effect. Before this change, playing 6-channel, 48000 Hz source into a sink expecting stereo, 44100 Hz is rather disturbing... While we're at it, clarify the spawn code for the sox source, too. We can drop the test_format_from_file test now, since it's probably overkill at this point.
2013-08-25preliminary support for avconv/avprobe from libav
avconv is capable of outputting to the .sox format, greatly simplifying our life as it enables us to easily apply sox effects on a per-source file basis. dtas-sourceedit and the "source" protocol commands will need to change to support internal priorities (like sink).
2013-08-25format: decouple from soxi
We'll be supporting reading the format from avprobe and ffprobe, so we should avoid tying ourselves to soxi
2013-08-25split out source handling to prepare for avconv/ffmpeg support
We should've done this at the start, but we didn't.
2013-08-25more cleanups for packaging and documentation v0.0.0
Rename COPYRIGHT -> COPYING, as that seems to be the more common name for the GPLv3 license file. Kill all rdoc, since I don't agree with HTML documentation and we do not expose any Ruby APIs.
2013-08-24initial commit