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* core: move contents to mpvcore (1/2)Stefano Pigozzi2013-08-061-123/+0
| | | | | | | | | | core is used in many unix systems for core dumps. For that reason some tools work under the assumption that the file is indeed a core dump (for example autoconf does this). This commit just renames the files. The following one will change all the includes to fix compilation. This is done this way because git has a easier time tracing file changes if there is a pure rename commit.
* core: add common function to initialize AVPacketwm42013-06-031-0/+20
| | | | | | | | | | Audio and video had their own (very similar) functions to initialize an AVPacket (ffmpeg's packet struct) from a demux_packet (mplayer's packet struct). Add a common function for these. Also use this function for sd_lavc_conv. This is actually a functional change, as some libavfilter subtitle demuxers add weird out-of-band stuff as side-data.
* av_common: allow calling mp_codec_to_av_codec_id() with NULLwm42013-04-201-7/+9
| | | | Helps reducing special cases.
* av_common: minor simplificationwm42013-04-041-8/+2
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* configure: bump minimum FFmpeg/Libav versions, remove compat hackswm42013-03-131-74/+0
| | | | | | | | | | | | | | | | | We consider FFmpeg 1.x and Libav 0.9.x releases compatible. Support for FFmpeg 0.9.x and Libav 0.8.x is considered infeasible and has been dropped in the previous commits. The bits that break compatibility are mainly the CodecID renaming (trivial, but would require nasty hacks everywhere), the avcodec_encode_video2() function (missing in older releases, mandatory in newer ones), and the resampler changes (older releases miss lib{av,sw}resample, newer versions removed the libavcodec resampler). Remove some other compatibility bits that were needed to for releases for which we drop support. The comment about Libav 0.9 in compat/libav.h is incorrect and should have been 0.8 (the symbol is present in Libav 0.9).
* Prefix CODEC_ID_ with AV_wm42013-03-131-29/+29
| | | | | | | | | The old names have been deprecated a while ago, but were needed for supporting older ffmpeg/libav versions. The deprecated identifiers have been removed from recent Libav and FFmpeg git. This change breaks compatibility with Libav 0.8.x and equivalent FFmpeg releases.
* core: make more robust against missing libavcodec AVCodecDescriptor entrieswm42013-03-071-3/+18
| | | | | | | | | | | Missing entries cause avcodec_descriptor_get() to return NULL, and in turn mp_codec_from_av_codec_id() will return NULL. This shouldn't happen, and avcodec_descriptor_get() returning NULL for a valid codec is clearly a bug. But make it more robust anyway, and use the decoder's name if this happens, because I doubt maintainance of the AVCodecDescriptor table in ffmpeg/Libav will always be perfect and reliable.
* Fix compilation with Libavwm42013-02-141-0/+2
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* demux_lavf, ad_lavc, vd_lavc: pass codec header data directlywm42013-02-101-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | Instead of putting codec header data into WAVEFORMATEX and BITMAPINFOHEADER, pass it directly via AVCodecContext. To do this, we add mp_copy_lav_codec_headers(), which copies the codec header data from one AVCodecContext to another (originally, the plan was to use avcodec_copy_context() for this, but it looks like this would turn decoder initialization into an even worse mess). Get rid of the silly CodecID <-> codec_tag mapping. This was originally needed for codecs.conf: codec tags were used to identify codecs, but libavformat didn't always return useful codec tags (different file formats can have different, overlapping tag numbers). Since we don't go through WAVEFORMATEX etc. and pass all header data directly via AVCodecContext, we can be absolutely sure that the codec tag mapping is not needed anymore. Note that this also destroys the "standard" MPlayer method of exporting codec header data. WAVEFORMATEX and BITMAPINFOHEADER made sure that other non-libavcodec decoders could be initialized. However, all these decoders have been removed, so this is just cruft full of old hacks that are not needed anymore. There's still ad_spdif and ad_mpg123, bu neither of these need codec header data. Should we ever add non-libavcodec decoders, better data structures without the past hacks could be added to export the headers.
* core: redo how codecs are mapped, remove codecs.confwm42013-02-101-0/+130
Use codec names instead of FourCCs to identify codecs. Rewrite how codecs are selected and initialized. Now each decoder exports a list of decoders (and the codec it supports) via add_decoders(). The order matters, and the first decoder for a given decoder is preferred over the other decoders. E.g. all ad_mpg123 decoders are preferred over ad_lavc, because it comes first in the mpcodecs_ad_drivers array. Likewise, decoders within ad_lavc that are enumerated first by libavcodec (using av_codec_next()) are preferred. (This is actually critical to select h264 software decoding by default instead of vdpau. libavcodec and ffmpeg/avconv use the same method to select decoders by default, so we hope this is sane.) The codec names follow libavcodec's codec names as defined by AVCodecDescriptor.name (see libavcodec/codec_desc.c). Some decoders have names different from the canonical codec name. The AVCodecDescriptor API is relatively new, so we need a compatibility layer for older libavcodec versions for codec names that are referenced internally, and which are different from the decoder name. (Add a configure check for that, because checking versions is getting way too messy.) demux/codec_tags.c is generated from the former codecs.conf (minus "special" decoders like vdpau, and excluding the mappings that are the same as the mappings libavformat's exported RIFF tables). It contains all the mappings from FourCCs to codec name. This is needed for demux_mkv, demux_mpg, demux_avi and demux_asf. demux_lavf will set the codec as determined by libavformat, while the other demuxers have to do this on their own, using the mp_set_audio/video_codec_from_tag() functions. Note that the sh_audio/video->format members don't uniquely identify the codec anymore, and sh->codec takes over this role. Replace the --ac/--vc/--afm/--vfm with new --vd/--ad options, which provide cover the functionality of the removed switched. Note: there's no CODECS_FLAG_FLIP flag anymore. This means some obscure container/video combinations (e.g. the sample Film_200_zygo_pro.mov) are played flipped. ffplay/avplay doesn't handle this properly either, so we don't care and blame ffmeg/libav instead.