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* avcodec/encode: Always use intermediate buffer in ff_alloc_packet2()Andreas Rheinhardt2021-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | Up until now, ff_alloc_packet2() has a min_size parameter: It is supposed to be a lower bound on the final size of the packet to allocate. If it is not too far from the upper bound (namely, if it is at least half the upper bound), then ff_alloc_packet2() already allocates the final, already refcounted packet; if it is not, then the packet is not refcounted and its data only points to a buffer owned by the AVCodecContext (in this case, the packet will be made refcounted in encode_simple_internal() in libavcodec/encode.c). The goal of this was to avoid data copies and intermediate buffers if one has a precise lower bound. Yet those encoders for which precise lower bounds exist have recently been switched to ff_get_encode_buffer() (which automatically allocates final buffers), leaving only two encoders to actually set the min_size to something else than zero (namely aliaspixenc and hapenc). Both of these encoders use a very low lower bound that is not helpful in any nontrivial case. This commit therefore removes the min_size parameter as well as the codepath in ff_alloc_packet2() for the allocation of final buffers. Furthermore, the function has been renamed to ff_alloc_packet() and moved to encode.h alongside ff_get_encode_buffer(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/gif: Mark encoder as init-threadsafeAndreas Rheinhardt2021-05-02
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec: Constify AVCodecsAndreas Rheinhardt2021-04-27
| | | | | | | | | | Given that the AVCodec.next pointer has now been removed, most of the AVCodecs are not modified at all any more and can therefore be made const (as this patch does); the only exceptions are the very few codecs for external libraries that have a init_static_data callback. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/gifenc: Actually use the shrunk paletteDerek Buitenhuis2021-03-11
| | | | | | I have no idea how nobody, including myself, noticed this. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* avcodec/gifenc: Only write frame palette entries that actually usedDerek Buitenhuis2021-02-25
| | | | | | | | | | | | | | | | GIF palette entries are not compressed, and writing 256 entries, which can be up to every frame, uses a significant amount of space, especially in extreme cases, where palettes can be very small. Example, first six seconds of Tears of Steel, palette generated with libimagequant, 320x240 resolution, and with transparency optimization + per frame palette: * Before patch: 186765 bytes * After patch: 77895 bytes Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* avcodec/gifenc: Add global_palette optionDerek Buitenhuis2021-02-25
| | | | | | | | | | | | | This option will disable the writing of the global palette in global GIF header if it is set to 0, causing only the frame-level palette to ever be written. This will be useful later on when further frame-level palette optimizations are introduced. The default is 1, which maintains current default behavior. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* avcodec/gif: Fix leaks upon allocation errorAndreas Rheinhardt2020-09-15
| | | | | | | | | If one of several allocations the gif encoder performs in its init function fails, the successful allocations leak. Fix this by adding the FF_CODEC_CAP_INIT_CLEANUP flag. Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/gif: fix disposal method for first frame and transparent gifsPaul B Mahol2020-08-23
| | | | Fixes #7902
* avcodec/put_bits: Fix LZW warningSteinar H. Gunderson2020-07-20
| | | | | | | | | | | lzwenc stores a function pointer to either put_bits or put_bits_le; however, after the recent change, the function pointer's prototype would depend on BitBuf. BitBuf is defined in put_bits.h, whose definition depends on whether BITSTREAM_WRITER_LE is #defined or not. For safety, we set a boolean flag for little/big endian instead, which also allows the definition to be inlined. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/gif: remove flags from gifimage optionPaul B Mahol2019-05-11
| | | | It does not belong there.
* avcodec/gif: fix issues with transparent cropJacob Graff2019-05-11
| | | | Resolves issues with some transparent gifs.
* avcodec/gif: use avctx->frame_numberPaul B Mahol2018-12-13
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* avcodec/gif: enable encoding single gif image per framePaul B Mahol2018-12-13
| | | | Unbreaks gif image2 muxer.
* avcodec/gif: add support for alphaPaul B Mahol2018-12-13
| | | | | | Based on patch by Bjorn Roche. Fixes #6813.
* avcodec: rewrite gif muxing and encodingPaul B Mahol2018-12-13
| | | | | | | | | | | | | | | Now "-c copy" works. Update FATE files. Demuxer only split file into packets, no data is trimmed. Encoder & muxer currently expect completely another format where muxer writes stuff like disposal method which should be really encoder job. With this patch muxer only modifies delay between two packets. Codec copy need to have same behavior between demuxer and muxer to work correctly. Fixes #6640.
* avcodec/gif: don't honor transparency if palette changedPaul B Mahol2016-09-07
| | | | | | It generally does not work. Signed-off-by: Paul B Mahol <onemda@gmail.com>
* avcodec/gif: Fix lzw buffer sizeMichael Niedermayer2016-01-18
| | | | | | | | Fixes out of array access Fixes: aaa479088e6fb40b04837b3119f47b04/asan_heap-oob_e38c68_8576_9d653078b2470700e2834636f12ff557.tga Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba'Michael Niedermayer2015-07-27
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '059a934806d61f7af9ab3fd9f74994b838ea5eba': lavc: Consistently prefix input buffer defines Conflicts: doc/examples/decoding_encoding.c libavcodec/4xm.c libavcodec/aac_adtstoasc_bsf.c libavcodec/aacdec.c libavcodec/aacenc.c libavcodec/ac3dec.h libavcodec/asvenc.c libavcodec/avcodec.h libavcodec/avpacket.c libavcodec/dvdec.c libavcodec/ffv1enc.c libavcodec/g2meet.c libavcodec/gif.c libavcodec/h264.c libavcodec/h264_mp4toannexb_bsf.c libavcodec/huffyuvdec.c libavcodec/huffyuvenc.c libavcodec/jpeglsenc.c libavcodec/libxvid.c libavcodec/mdec.c libavcodec/motionpixels.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/noise_bsf.c libavcodec/nuv.c libavcodec/nvenc.c libavcodec/options.c libavcodec/parser.c libavcodec/pngenc.c libavcodec/proresenc_kostya.c libavcodec/qsvdec.c libavcodec/svq1enc.c libavcodec/tiffenc.c libavcodec/truemotion2.c libavcodec/utils.c libavcodec/utvideoenc.c libavcodec/vc1dec.c libavcodec/wmalosslessdec.c libavformat/adxdec.c libavformat/aiffdec.c libavformat/apc.c libavformat/apetag.c libavformat/avidec.c libavformat/bink.c libavformat/cafdec.c libavformat/flvdec.c libavformat/id3v2.c libavformat/isom.c libavformat/matroskadec.c libavformat/mov.c libavformat/mpc.c libavformat/mpc8.c libavformat/mpegts.c libavformat/mvi.c libavformat/mxfdec.c libavformat/mxg.c libavformat/nutdec.c libavformat/oggdec.c libavformat/oggparsecelt.c libavformat/oggparseflac.c libavformat/oggparseopus.c libavformat/oggparsespeex.c libavformat/omadec.c libavformat/rawdec.c libavformat/riffdec.c libavformat/rl2.c libavformat/rmdec.c libavformat/rtpdec_latm.c libavformat/rtpdec_mpeg4.c libavformat/rtpdec_qdm2.c libavformat/rtpdec_svq3.c libavformat/sierravmd.c libavformat/smacker.c libavformat/smush.c libavformat/spdifenc.c libavformat/takdec.c libavformat/tta.c libavformat/utils.c libavformat/vqf.c libavformat/westwood_vqa.c libavformat/xmv.c libavformat/xwma.c libavformat/yop.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
| * lavc: Consistently prefix input buffer definesVittorio Giovara2015-07-27
| | | | | | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | avcodec: Add a min size parameter to ff_alloc_packet2()Michael Niedermayer2015-07-27
| | | | | | | | | | | | | | | | This parameter can be used to inform the allocation code about how much downsizing might occur, and can be used to optimize how to allocate the packet Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | Merge commit '40cf1bbacc6220a0aa6bed5c331871d43f9ce370'Michael Niedermayer2015-07-21
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '40cf1bbacc6220a0aa6bed5c331871d43f9ce370': Deprecate avctx.coded_frame Conflicts: ffmpeg.c libavcodec/a64multienc.c libavcodec/asvenc.c libavcodec/cljrenc.c libavcodec/dpxenc.c libavcodec/gif.c libavcodec/mpegvideo_enc.c libavcodec/nvenc.c libavcodec/proresenc_kostya.c libavcodec/pthread_frame.c libavcodec/rawenc.c libavcodec/sunrastenc.c libavcodec/tiffenc.c libavcodec/version.h libavcodec/xbmenc.c libavcodec/xwdenc.c libavdevice/v4l2.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
| * Deprecate avctx.coded_frameVittorio Giovara2015-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rationale is that coded_frame was only used to communicate key_frame, pict_type and quality to the caller, as well as a few other random fields, in a non predictable, let alone consistent way. There was agreement that there was no use case for coded_frame, as it is a full-sized AVFrame container used for just 2-3 int-sized properties, which shouldn't even belong into the AVCodecContext in the first place. The appropriate AVPacket flag can be used instead of key_frame, while quality is exported with the new AVPacketSideData quality factor. There is no replacement for the other fields as they were unreliable, mishandled or just not used at all. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | Merge commit 'd6604b29ef544793479d7fb4e05ef6622bb3e534'Michael Niedermayer2015-07-20
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit 'd6604b29ef544793479d7fb4e05ef6622bb3e534': Gather all coded_frame allocations and free functions to a single place Conflicts: libavcodec/a64multienc.c libavcodec/asvenc.c libavcodec/cljrenc.c libavcodec/dpxenc.c libavcodec/dvenc.c libavcodec/gif.c libavcodec/huffyuvenc.c libavcodec/jpeglsenc.c libavcodec/libopenjpegenc.c libavcodec/libtheoraenc.c libavcodec/libvpxenc.c libavcodec/mpegvideo_enc.c libavcodec/nvenc.c libavcodec/pngenc.c libavcodec/proresenc_kostya.c libavcodec/sunrastenc.c libavcodec/tiffenc.c libavcodec/utils.c libavcodec/utvideoenc.c libavcodec/v210enc.c libavcodec/v410enc.c libavcodec/xbmenc.c Merged-by: Michael Niedermayer <michael@niedermayer.cc>
| * Gather all coded_frame allocations and free functions to a single placeVittorio Giovara2015-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Allocating coded_frame is what most encoders do anyway, so it makes sense to always allocate and free it in a single place. Moreover a lot of encoders freed the frame with av_freep() instead of the correct API av_frame_free(). This bring uniformity to encoder behaviour and prevents applications from erroneusly accessing this field when not allocated. Additionally this helps isolating encoders that export information with coded_frame, and heavily simplifies its deprecation. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* | avcodec/gif: fix off by one in column offsetting findingClément Bœsch2015-02-16
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* | Merge commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0'Michael Niedermayer2015-02-14
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0': avcodec: Don't anonymously typedef structs Conflicts: libavcodec/alac.c libavcodec/cinepak.c libavcodec/cscd.c libavcodec/dcadec.c libavcodec/g723_1.c libavcodec/gif.c libavcodec/iff.c libavcodec/kgv1dec.c libavcodec/libopenjpegenc.c libavcodec/libspeexenc.c libavcodec/ra288.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * avcodec: Don't anonymously typedef structsDiego Biurrun2015-02-14
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* | avcodec/gif: support crop and transparency with PAL8Clément Bœsch2015-02-14
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* | Merge commit '57e7b3a89f5a0879ad039e8f04273b48649799a8'Michael Niedermayer2013-11-17
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | * commit '57e7b3a89f5a0879ad039e8f04273b48649799a8': dnxhdenc: use the AVFrame API properly. libx264: use the AVFrame API properly. svq1enc: use the AVFrame API properly. gif: use the AVFrame API properly. Conflicts: libavcodec/gif.c libavcodec/svq1enc.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * gif: use the AVFrame API properly.Anton Khirnov2013-11-16
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* | Merge commit 'b2bed9325dbd6be0da1d91ffed3f513c40274fd2'Michael Niedermayer2013-10-04
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * commit 'b2bed9325dbd6be0da1d91ffed3f513c40274fd2': cosmetics: Group .name and .long_name together in codec/format declarations Conflicts: libavcodec/8svx.c libavcodec/alac.c libavcodec/cljr.c libavcodec/dnxhddec.c libavcodec/dnxhdenc.c libavcodec/dpxenc.c libavcodec/dvdec.c libavcodec/dvdsubdec.c libavcodec/dvdsubenc.c libavcodec/ffv1dec.c libavcodec/flacdec.c libavcodec/flvdec.c libavcodec/fraps.c libavcodec/frwu.c libavcodec/g726.c libavcodec/gif.c libavcodec/gifdec.c libavcodec/h261dec.c libavcodec/h263dec.c libavcodec/iff.c libavcodec/imc.c libavcodec/libopencore-amr.c libavcodec/libopenjpegdec.c libavcodec/libopenjpegenc.c libavcodec/libspeexenc.c libavcodec/libvo-amrwbenc.c libavcodec/libvorbisenc.c libavcodec/libvpxenc.c libavcodec/libx264.c libavcodec/libxavs.c libavcodec/libxvid.c libavcodec/ljpegenc.c libavcodec/mjpegbdec.c libavcodec/mjpegdec.c libavcodec/mpeg12dec.c libavcodec/mpeg4videodec.c libavcodec/msmpeg4dec.c libavcodec/pgssubdec.c libavcodec/pngdec.c libavcodec/pngenc.c libavcodec/proresdec_lgpl.c libavcodec/proresenc_kostya.c libavcodec/ra144enc.c libavcodec/rawdec.c libavcodec/rv10.c libavcodec/sp5xdec.c libavcodec/takdec.c libavcodec/tta.c libavcodec/v210dec.c libavcodec/vp6.c libavcodec/wavpack.c libavcodec/xbmenc.c libavcodec/yop.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * cosmetics: Group .name and .long_name together in codec/format declarationsDiego Biurrun2013-10-03
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* | avcodec/gif: use the whole allocated bufferMichael Niedermayer2013-08-14
| | | | | | | | | | | | Fixes some gif encoding failures Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avcodec/gif: move BITSTREAM_WRITER_LE upMichael Niedermayer2013-08-14
| | | | | | | | | | | | This prevents issues in case any header #includes put_bits.h Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | gif: remove unused AVFrame from encoder private contextPaul B Mahol2013-07-07
| | | | | | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* | gif: do not set avctx->coded_framePaul B Mahol2013-07-07
| | | | | | | | Signed-off-by: Paul B Mahol <onemda@gmail.com>
* | gif: Fix little endian specific codeMichael Niedermayer2013-04-30
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | lavc/gif: miscellaneous cosmetics.Clément Bœsch2013-04-19
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* | lavc/gif: add flag to enable transparency detection between frames.Clément Bœsch2013-04-19
| | | | | | | | | | | | | | | | | | | | While this is not always optimal, in practice most of the common cases are. ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags -transdiff -frames:v 50 -y bbb-notrans.gif ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags +transdiff -frames:v 50 -y bbb-trans.gif -rw-r--r-- 1 ubitux ubitux 1.1M Apr 19 19:00 bbb-notrans.gif -rw-r--r-- 1 ubitux ubitux 378K Apr 19 19:00 bbb-trans.gif
* | lavc/gif: make possible to disable offsetting.Clément Bœsch2013-04-19
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* | gif: use only one graphic control extension block per image.Clément Bœsch2013-04-19
| | | | | | | | | | | | | | | | | | | | The encoder now doesn't produce any extra graphic control extension block anymore. Only the image is encoded, and the muxer writing its own GCE containing notably the timing information now includes the optional palette transmitted through packet side data. This commit avoid setting clashes between the two GCE, and reduce the size of the generated file with pal8 output.
* | lavc/gif: avoid encoding 0x0 images.Clément Bœsch2013-04-18
| | | | | | | | It seems browsers don't like it very much.
* | gif: remove outdated comments.Clément Bœsch2013-04-18
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* | lavc/gif: return more meaningful error code.Clément Bœsch2013-04-18
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* | lavc/gif: merge two allocation checks.Clément Bœsch2013-04-18
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* | gif: reindent after previous commits.Clément Bœsch2013-04-18
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* | lavc/gif: crop image when possible.Clément Bœsch2013-04-18
| | | | | | | | | | | | Increase compression when pictures are similar. -f lavfi testsrc=300: 61M -> 21M
* | Cleanse GIF muxer and encoder.Clément Bœsch2013-04-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit removes the badly duplicated code between the encoder and the muxer. That may sound surprising, but the encoder is now responsible from the encoding of the picture when muxing to a .gif file. It also does not require anymore a manual user intervention such as a -pix_fmt rgb24 to work properly. To summarize, output gif are now easier to generate, code is saner and simpler, and files are smaller (thanks to the lzw encoding which was unused so far with the default .gif output). We can certainly make things even better, but this is the first step. FATE is updated because of the output being produced by the encoder and not the muxer (no lzw in the muxer), and in the seek test only the size mismatches. Fixes Ticket #2262
* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2013-04-11
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: Move misplaced file author information where it belongs Conflicts: libavcodec/adpcm.c libavcodec/adpcmenc.c libavcodec/gif.c libavcodec/x86/dsputilenc_mmx.c libavcodec/x86/fmtconvert_init.c libavformat/au.c libavformat/gif.c libavformat/mov.c libavformat/nsvdec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * Move misplaced file author information where it belongsDiego Biurrun2013-04-11
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