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* Fix compilation with Libavwm42012-12-112-0/+12
| | | | | | | | | | Doesn't define AVPROBE_SCORE_RETRY for some reason. They use AVPROBE_SCORE_MAX/4 directly internally. AV_DISPOSITION_ATTACHED_PIC is not defined with the most recent Libav release. AVIOContext.av_class exists in Libav, but is apparently disabled in old releases. Disable it for now until people stop torturing me with old crap releases.
* manpage: mark HTTP related options as deprecated/brokenwm42012-12-112-1/+21
| | | | | | | | | | Commit c02f25 switched the "http://" protocol to use ffmpeg's HTTP implementation (stream_lavf.c), instead of the mplayer internal one (http.c). Unfortunately, it turns out that there are some network related options that are not respected by stream_lavf.c, and consequently do not work anymore for "http://" URLs. This might be fixed later. Mark them as deprecated for now, as it might take arbitrarily long until this is taken care of.
* mplayer: prefer audio PTS over video PTS for status linewm42012-12-111-3/+3
| | | | | | | | | | | | This slightly improves display of the current playback time in files with sparse video packets (like video tracks containing a slow MJPG slideshows as in [1]), or audio files with cover art image attachments. While the video PTS is always "stuck" at the last frame displayed or the last seek, audio is usually continuous. Given sane samplerates and working audio drivers (to query how much of the current audio buffer has been played), the audio PTS should always be more reliable. [1] http://www.podtrac.com/pts/redirect.mp3/traffic.libsyn.com/rtpodcast/Rooster_Teeth_Podcast_191.m4a
* demux: fix behavior with files that have sparse video packetsreimar2012-12-113-6/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve EOF handling in ds_fill_buffer for the case where one stream ends much earlier than the others, in particular make sure the "too many ..." message is not printed over and over. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@32823 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpdemux/demuxer.c Try to improve seeking in files with only few video packets, in particular files with cover art. This might cause issues with badly interleaved files, particularly together with -audio-delay, even though I did not see issues in my very limited testing. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35486 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpdemux/demuxer.c libmpdemux/demuxer.h Fix code that detects streams temporarily lacking data to work properly with e.g. DVDs. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35499 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpdemux/demuxer.c Make stream eof detection less sensitive. Fixes bug #2111. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35543 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpdemux/demuxer.c
* core: allow disabling display of "album art" in audio fileswm42012-12-118-6/+32
| | | | | | | | | | | | | | | | | | ffmpeg pretends that image attachments (such as contained in ID3v2 metadata) are video streams. It injects the attached pictures as packets into the packet stream received with av_read_frame(). Add the --audio-display option to allow configuring whether attached pictures should be displayed. The default behavior doesn't change (images are displayed). Identify video streams, that are actually image attachments, with "[P]" in the terminal output. Modify the default stream selection such that real video streams are preferred over attached pictures. (This is just for robustness; I do not know of any samples where images are added before actual video streams and could lead to bad default stream selection with the old code.)
* audio: remove support for native alaw/mulaw/adpcm outputwm42012-12-1111-1232/+5
| | | | | | This is considered a worthless feature. Note that alaw/mulaw/adpcm input is unaffected: such data is handed to libavcodec and "decoded" to linear PCM.
* audio/decode: remove ad_dvdpcm and use ad_lavc for DVD PCMwm42012-12-115-166/+47
| | | | | | | | | | ad_dvdpcm reads MPEG specific headers directly (passed through codecdata by demux_mpg), so you couldn't use ffmpeg's "pcm_dvd" with demux_mpg. Change demux_mpg to set the correct audio parameters directly. The code for this is taken from ad_dvdpcm. ad_dvdpcm is evil because it still does partial packet reads (with demux_read_data()), and it's redundant to libavcodec anyway.
* audio/decode: remove ad_pcm and use ad_lavc for PCMwm42012-12-116-266/+122
| | | | | | | | | | | | | | | Since libavcodec doesn't have a "generic" PCM decoder, we have to go out of out way to make it look like ad_lavc provides one: make it provide a pseudo "pcm" decoder, which maps some format tags manually to the individual libavcodec PCM decoders. Format tags which uniquely map to one libavcodec could be mapped via codecs.conf. Since defining these in tag_map[] is much shorter (one line vs. a full codec entry in codecs.conf), and since we need tag_map[] anyway, we don't use codecs.conf for these. ad_pcm is evil because it still does partial packet reads (with demux_read_data()), and it's redundant to libavcodec anyway.
* windows support: fix compilation with pthreadswm42012-12-112-1/+5
| | | | | | | | | | | | | | | This caused errors like: core/mplayer.c:4308:5: error: implicit declaration of function 'pthread_win32_thread_detach_np' [-Werror=implicit-function-declaration] It turns out a pthread.h include was missing. It's not clear why this used to work (or rather, why it happens only sometimes). Possibly some libraries or system headers recursively include pthread.h under certain circumstances or configurations. Fix missing quoting in configure, which led to broken terminal output. Closes #6.
* mplayer: make --length work if --start is missingwm42012-12-111-1/+1
| | | | In this case, --start should default to 0 obviously.
* stream_lavf/demux_lavf: export/use HTTP MIME typewm42012-12-114-15/+34
| | | | | | | | | | | | | | | | | This is a fix for web radio streams that send raw AAC [1]. libavformat's AAC demuxer probe is picky enough to request hundreds of KBs data, which makes for a slow startup. To speed up stream startup, try use the HTTP MIME type to identify the format. The webstream in question sends an AAC specific MIME type, for which demux_lavf will force the AAC demuxer, without probing anything. ffmpeg/ffplay do the same thing. Note that as of ffmpeg commit 76d851b, av_probe_input_buffer() does the mapping from MIME type to demuxer. The actual mapping is not publicly accessible, and can only be used by calling that function. This will hopefully be rectified, and ideally ffmpeg would provide a function like find_demuxer_from_mime_type(). [1] http://lr2mp0.latvijasradio.lv:8000
* demux_lavf: make minimum probe score customizable, remove lavf_preferredwm42012-12-116-59/+43
| | | | | | | | | | | | | | | | | | | | | libavformat wants to read a full ~400KB of data to determine whether it's really AAC. This causes slow startup with AAC web radio streams [1] (possible due to a broken initial packet). There are similar issues with other file formats. Make the probe "score" (libavformat's mechanism for testing file formats) configurable with the -lavfdtops:probescore option. This allows lowering the amount of data read on probing. If the probe score is below the probescore option value, demux_lavf will try to get a higher score by feeding more data to libavformat, until the required score or the max. probe size is reached. Remove the lavf_preferred demuxer entry. This had a purpose in mplayer-svn, but now there doesn't seem to be any good reason for it to exist. Make sure that our native "good" demuxers are above demux_lavf in demuxer_list[] instead (so that they are preferred). [1] http://lr2mp0.latvijasradio.lv:8000
* configure: remove --disable-sortsubwm42012-12-112-60/+4
| | | | | Apparently this was for debugging. There was a patch to remove it years ago, but it has been forgotten.
* stream: handle mms streaming with ffmpegwm42012-12-113-14/+23
| | | | | | | | | | | | | | | | | | | | Use ffmpeg (stream_lavf) instead of internal mms support (asf_streaming.c) for mms://, mmsh://, mmst:// URLs. The old implementation is available under mp_mms:// etc. There are some caveats with this: - mms:// now always maps to mmsh://. It won't try mmst://. (I'm not sure if mms:// URLs really can use the mmst protocol, though.) - MMS streams under the http:// prefix are not handled. (ffmpeg ticket #2001.) (Was already broken in mpv since c02f25.) - It downloads all video streams now. MMS streams often have redundant video streams, which encode the main stream at different quality. The client is supposed to select one according to its bandwidth requirements. (Explicit MMS stream selection has been broken in mpv for a while, because MPOpts.vid maps to the stream number, not the demuxer's stream ID - but the old logic doesn't work anyway when using demuxer_lavf as opposed to demux_asf.)
* sub: remove vobsub reader in favor of ffmpeg vobsub demuxerwm42012-12-1114-1205/+74
| | | | | | | | ffmpeg recently added a demuxer that can read vobsubs (pairs of .sub and .idx files). Get rid of the internal vobsub reader, and use the ffmpeg demuxer instead. Sneak in an unrelated manpage change (autosub default).
* core: improve seeking in external fileswm42012-12-113-13/+41
| | | | | | | | | | | | | | | | | | | | | | | | This affects streams loaded with -subfile and -audiofile. They could get out of sync when they were deselected, and the main file was seeked. Add code to seek external files when they are selected (see init_demux_stream()). Use avformat_seek_file() under certain circumstances. Both av_seek_frame() ("old" API) and avformat_seek_file() ("new" API) seem to be broken with some formats. At least the vobsub demuxer doesn't implement the old API (and the old API doesn't fallback to the new API), while the fallback from new API to old API gives bad results. For example, seeking forward with small step sizes seems to fail with the new API (tested with Matroska by trying to seek 1 second forward relative to priv->last_pts). Since only subtitle demuxers implement the new API anyway, checking whether iformat->read_seek2 is set to test whether the old API is not supported gives best results. This is a hack at best, but makes things work. Remove backwards seeking on seek failure. This was annoying, and only was there to compensate for obscure corner cases (see 1ad332). In particular, files with completely broken seeking that used to skip back to the start on every seek request may now terminate playback.
* sub: use ffmpeg decoder for DVD subswm42012-12-101-1/+47
| | | | | | | | | | | | | | | | | Do this only if demux_lavf is used. Using demux_mpg and the ffmpeg DVD subtitle decoder doesn't work. The problem is probably that demux_mpg doesn't join split sub packets, while demux_lavf does. The internal DVD sub decoder (spudec.c) can, while ffmpeg's dvdsub can't. I do not know whether this is the actual problem. If DVD playback is used, create "fake" vobsub-style text extradata (like .idx files) to pass resolution and palette information to the ffmpeg decoder. We could use the "palette" AVOpt and avcodec_set_dimensions() instead, but it's actually simpler this way. Note that the decoder doesn't parse any other fields. Also note that DVD playback still uses demux_mpg by default, so this code is inactive unless -demuxer lavf is specified. This is mainly preparation for the case when we manage to get rid of demux_mpg for DVD playback.
* stream_dvd: add a stream_seek() callRudolf Polzer2012-12-071-0/+2
| | | | | This fixes use of -chapter together with -correct-pts and demux_lavf and stream_dvd.
* core/cfg-mplayer: fix segfault when using DVD subsRudolf Polzer2012-12-051-1/+1
| | | | | | The option sub-forced-only was accidentally renamed back to forcedsubsonly in commit 72205635abe7, causing a segfault in mp_property_generic_option due to missing option.
* Fix compilation with Libavwm42012-12-041-12/+13
| | | | Libav doesn't have 12/14 bit planar formats.
* input: do not generate double clicks for mouse wheelwm42012-12-031-1/+1
| | | | | | | | | Button 3 and 4 are mapped to the mouse wheel. Double click events for them annoying and not useful at all. I don't know about buttons 5-19; for all I know these could be mapped to wheels as well. Even if not, double click events are probably not very important for these. Disable double clicks for these as well.
* sub: clear libavformat demuxed subtitles on seekingwm42012-12-031-0/+6
| | | | | | libavformat demuxes ass subtitles in a broken way, that forces the player to throw away all subtitle events received so far. See mplayer svn commit 31293.
* audio: make AC3 pass-through with ad_spdif workreimar2012-12-034-24/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not fall back to 0 for samplerate when parser is not initialized. Might fix some issues with using -ac spdifenc with audio in MKV or MP4. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35517 b3059339-0415-0410-9bf9-f77b7e298cf2 Replace outdated list of unsupported formats by list of supported formats. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35534 b3059339-0415-0410-9bf9-f77b7e298cf2 Do not call af_fmt2str on the same data over and over. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35535 b3059339-0415-0410-9bf9-f77b7e298cf2 ad_spdif: use the more specific AF_FORMAT_AC3_LE when we handle AC3. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35536 b3059339-0415-0410-9bf9-f77b7e298cf2 Make AF_FORMAT_IS_IEC61937 include AF_FORMAT_IS_AC3. Our AC3 "sample format" is also iec61937. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35537 b3059339-0415-0410-9bf9-f77b7e298cf2 af_format: support endianness conversion also for iec61937 formats in general, not just AC3. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35538 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: audio/filter/af_format.c af_format: Fix check_format, non-special formats are of course supported. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35545 b3059339-0415-0410-9bf9-f77b7e298cf2 Note: see mplayer bug #2110
* stream_ftp: cleanupsal2012-12-031-19/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stream ftp: Pass full buffer size to snprintf Previously the buffer size was always passed as one less than the underlying buffer's size. This is not using the underlying buffer to its full potential according to the C99 standard. The last byte of the buffers were never used. No vulnerabilities should have been caused by this mistake because the strings stored in the buffers were zero terminated at all times. Neither were out-of-array writes nor reads possible. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35488 b3059339-0415-0410-9bf9-f77b7e298cf2 stream ftp: open_f: Mark parameter file_format unused We have nothing to say about it, so we do not set *file_format. No need for compilers to emit a warning about it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35489 b3059339-0415-0410-9bf9-f77b7e298cf2 stream ftp: Set type to STREAMTYPE_STREAM Previously this was not set at all from within the stream_ftp module. This caused the run-time warning message "Streams need a type!". The actual behaviour should not be affected by this change. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35490 b3059339-0415-0410-9bf9-f77b7e298cf2 stream ftp: Use C99 designated initializers Simplify the initialization of the stream private struct's defaults. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35491 b3059339-0415-0410-9bf9-f77b7e298cf2 stream ftp: Remove unneeded cast At worst these kind of casts can hide real errors. As it is, it is just not needed at all, thus remove it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35492 b3059339-0415-0410-9bf9-f77b7e298cf2
* audio: improve decoder open failure handlingUoti Urpala2012-12-033-15/+4
| | | | | | | | | | | | | | | | Reinitialize sh_audio->samplesize and sample_format before falling back to another audio decoder (some decoders rely on default values). Remove code setting these fields from demux_mkv and demux_lavf (no decoder should depend on demuxer-set values for these fields). Conflicts: audio/decode/ad_lavc.c Merged from mplayer2 commit 6b9567. The changes to ad_lavc.c are not merged, as they are very specific to the mplayer2 libavresample hack; we deplanarize manually, so we can't get unsupported sample formats yet (except on raw audio with "pcm_f64le", as we don't support AV_SAMPLE_FMT_DBL in the audio chain).
* subreader: fix some of ASS parser issuesUoti Urpala2012-12-031-45/+22
| | | | | | | | | | | | | | | | | | The subreader.c ASS parser (used when playing an external ASS subtitle file with --no-ass for "plaintext" display) hardcodes dialogue line syntax instead of correctly reading it from the "Format: " line in the file, but tried to support a varying amount of fields by guessing where the text field (which should be last) begins. This guessing code was buggy in many ways. Remove it and hardcode skipping 9 commas before the text field, which should work for most files. I don't consider the --no-ass case important enough to implement correct parsing now. Also fix the code removing formatting tags, which failed to remove the second in a pair of two consecutive tags. Conflicts: sub/subreader.c Merged from mplayer2 commit 91f516. Essentially reverts d5b964.
* subs: remove --utf8, simplify codeUoti Urpala2012-12-035-28/+6
| | | | | | | | | | | | | | | | | | | Remove the options --utf8 and --unicode which had no effect any more (what they once did should be doable with --subcp). The only use of corresponding variables left in code was subreader.c code using sub_utf8 as a flag indicating whether iconv conversion was active. Change the code to test the existence of iconv context instead. Conflicts: DOCS/man/en/options.rst core/cfg-mplayer.h sub/sub.c sub/sub.h sub/subreader.c Merged from mplayer2 commit ea7311. Note: --unicode was already removed
* core: automatically pause on low cachewm42012-12-038-5/+66
| | | | | | | | | | | | | | | When the cache fill status goes below a certain threshold, automatically pause the player. When the cache is filled again, unpause again. This is intended to help with streaming from http. It's better to pause a while, rather than exposing extremely crappy behavior when packet reads during decoding block the entire player. In theory, we should try to increase the cache if underruns happen too often. Unfortunately, changing the cache implementation would be very hard, because it's insane code (forks, uses shared memory and "volatile" etc.). So for now, this just reduces the frequency of the stuttering if the network is absolutely too slow to play the stream in realtime.
* stream_lavf: use ffmpeg for http/https streamingwm42012-12-032-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The internal mplayer http implementation is terrible and old. Try to use ffmpeg instead. Enable ffmpeg https as well (we don't have native support for it and never will). Enable the cache for ffmpeg streams. In theory, we want to enable the cache for network streams only (or at least, not enable it for files), but there doesn't seem to be any way to query this. ffmpeg has its own read-cache, but apparently it doesn't get filled asynchronously (only to the degree internal socket/kernel buffers do). Should it turn out that the mplayer implementation is better than ffmpeg's in some way (unlikely), this commit might be reverted until ffmpeg is ready. So far, the ffmpeg implementation seems to work very well though. The original mplayer stream implementation is made available under "mp_http://" and "mp_http_proxy://". This is for testing, until the http implementation is completely removed. Note that this is unlikely to happen soon: ffmpeg doesn't support Microsoft streaming, while mplayer has some support. This code has dependencies on http. Note: "http_proxy://" doesn't work anymore. Use "httpproxy://" to get the ffmpeg implementation of it. Using https requires enabling OpenSSL in ffmpeg by adding the --enable-openssl switch to ffmpeg's configure.
* cache: simplify furtherwm42012-12-039-42/+45
| | | | | | | | | | | | This commit is separate from the previous one to separate our own changes from changes merged from mplayer2 (as far as that was possible). Make it easier for stream implementations to request being cached. Set a default cache size in stream.c, and remove them from various stream implementations. Only MS streaming support sets a meaningful cache size. Make querying cache size saner. This reduces the amount of #ifdefs needed.
* cache: refactor how cache enabling is doneUoti Urpala2012-12-0311-55/+41
| | | | | | | | | | | | | | | | | | | | | | | | Code enabling the cache by default for network streams did that by modifying the value of the "cache" option. This wasn't sane, as multiple streams may be created and all share the same options. Change the code to not modify options but store data in the stream instance instead. Conflicts: core/mplayer.c demux/demux.c stream/cache2.c stream/network.c stream/network.h stream/pnm.c stream/stream.c stream/stream_rtp.c Merged from mplayer2 commit e26070. Note that this doesn't solve any actual bug, as the playlist crashing bug has been fixed before. Since the global cache size option value is not overwritten anymore, the option doesn't need to be restored on end of playback (M_OPT_LOCAL).
* video: add support for 12 and 14 bit YUV pixel formatsStephen Hutchinson2012-12-036-3/+95
| | | | | | | | | | | | Based on a patch by qyot27. Add the missing parts in mp_get_chroma_shift(), which allow allocation of such images, and which make vo_opengl automatically accept the new formats. Change the IMGFMT_IS_YUVP16_LE/BE macros to properly report IMGFMT_444P14 as supported: this pixel format has the highest numerical bit width identifier (0x55), which is not covered by the mask ~0xfc. Remove 1 bit from the mask (makes it 0xf8) so that IMGFMT_IS_YUVP16(IMGFMT_444P14) is 1. This is slightly risky, as the organization of the image format IDs (actually FourCCs + mplayer internal IDs) is messy at best, but it should be ok.
* build: identify the build time of the binary in the versioning outputStephen Hutchinson2012-12-034-1/+7
| | | | | | | | | | Based on a patch by qyot27. Add export LC_ALL=C on top of version.sh to make the output locale independent. Note that the build time will not be updated on every "make" invocation, but only when the git revision is updated. This is a good thing, as repeated make invocations should not rebuild the binary. (This would break "sudo make install" too.)
* demux_gif: remove this demuxer in favor of libavformatwm42012-12-034-437/+0
| | | | | The gif support in libavformat/libavcodec as of ffmpeg commit 5603b2 can handle animated gif. The internal demuxer is not needed anymore.
* demux_lavf: add support for libavdevicewm42012-12-038-25/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libavdevice supports various "special" video and audio inputs, such as screen-capture or libavfilter filter graphs. libavdevice inputs are implemented as demuxers. They don't use the custom stream callbacks (in AVFormatContext.pb). Instead, input parameters are passed as filename. This means the mpv stream layer has to be disabled. Do this by adding the pseudo stream handler avdevice://, whose only purpose is passing the filename to demux_lavf, without actually doing anything. Change the logic how the filename is passed to libavformat. Remove handling of the filename from demux_open_lavf() and move it to lavf_check_file(). (This also fixes a possible bug when skipping the "lavf://" prefix.) libavdevice now can be invoked by specifying demuxer and args as in: mpv avdevice://demuxer:args The args are passed as filename to libavformat. When using libavdevice demuxers, their actual meaning is highly implementation specific. They don't refer to actual filenames. Note: libavdevice is disabled by default. There is one problem: libavdevice pulls in libavfilter, which in turn causes symbol clashes with mpv internals. The problem is that libavfilter includes a mplayer filter bridge, which is used to interface with a set of nearly unmodified mplayer filters copied into libavfilter. This filter bridge uses the same symbol names as mplayer/mpv's filter chain, which results in symbol clashes at link-time. This can be prevented by building ffmpeg with --disable-filter=mp, but unfortunately this is not the default. This means linking to libavdevice (which in turn forces linking with libavfilter by default) must be disabled. We try doing this by compiling a test file that defines one of the clashing symbols (vf_mpi_clear). To enable libavdevice input, ffmpeg should be built with the options: --disable-filter=mp and mpv with: --enable-libavdevice Originally, I tried to auto-detect it. But the resulting complications in configure did't seem worth the trouble.
* demux_lavf: do not prefix filename passed to libavformat with "mp:"wm42012-12-031-8/+9
| | | | | | | | | | | | | | | Opening files with the libavformat AVISynth demuxer ("avs"/avisynth.c) fails, because the filename we pass to avformat_open_input() is prefixed with "mp:". Normally, this doesn't matter, because data is read with the stream interface. The AVISynth demuxer can't use this, because the Avisynth API (apparently) can't read scripts from memory, and requires a filename. The "mp:" prefix used to be required when mplayer's stream layer was made available as protocol to ffmpeg. This was replaced by setting custom stream callbacks in de4908 (svn commit 25499), but the prefix wasn't removed. Since this prefix doesn't have any purpose anymore and prevents AVS playback from functioning, remove it. Fixes #5.
* vo_xv: try harder to get correctly aligned pointers/strideswm42012-12-031-4/+6
| | | | | | | | | | | | | | | | | | | | To get guaranteed alignment for the chroma planes with typical YV12 playback, we have to double the alignment on the image width, as the chroma planes have half the image width. Clear the image with black instead of green to hide scaling artifacts on the right border of the screen. (It might be possible to create the image layout ourselves by not calling XvShmCreateImage(), and filling in our own image width and exact strides, but that's probably too risky: the Xv client library sends an X protocol request to query the real image dimension and strides. It is unknown to me whether X servers or drivers would generally accept an image with mismatching parameters, even if the image is conceptually valid.) Allocate the image with av_malloc() in the non-SHM case. I suspect the non-SHM case doesn't matter much, though.
* configure: don't check for inttypes.h, it