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* avcodec/qsvdec: Make functions used only here static, remove headerAndreas Rheinhardt2021-03-091-1/+0
| | | | | | | | | Forgotten after d78ecf10bd745cb69a71b32419e0661bfdcfb1fd. (Also mark some AVPackets as const.) Reviewed-by: Mark Thompson <sw@jkqxz.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* lavc: remove tests/optionsAnton Khirnov2021-03-081-1/+0
| | | | It tests deprecated avcodec_copy_context().
* avcodec: add TTML encoderJan Ekström2021-03-051-0/+1
| | | | | | Enables encoding of other subtitle formats into TTML paragraphs. Signed-off-by: Jan Ekström <jan.ekstrom@24i.com>
* avcodec: add SGA Video decoderPaul B Mahol2021-03-011-0/+1
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* avcodec: add SGA PCM decoderPaul B Mahol2021-03-011-0/+1
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* lavc: split LSCR decoder out of PNG decoderAnton Khirnov2021-02-241-1/+1
| | | | | It shares very little code with pngdec, so keeping them together only makes the code harder to read.
* avcodec/cfhdenc: refactor DSP code for CFHD encoderPaul B Mahol2021-02-241-1/+1
| | | | This is needed to implement x86 SIMD.
* avcodec/tiff_data: Move data to its only userAndreas Rheinhardt2021-02-231-2/+2
| | | | | | | | | tiff.c is the only user of the data from tiff_data.c (the dependency of the tiff encoder of it is spurious). Therefore this commit moves all the data from tiff_data.c to tiff_data.h (which is only included by tiff.c) and makes the objects declared therein static. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avformat/isom: Split movaudio/movvideo tags off into a separate fileAndreas Rheinhardt2021-02-231-1/+1
| | | | | | | | | The NUT and avi demuxers only need ff_codec_movvideo_tags and so this removes a dependency on the rest of isom.c as well as on mpeg4audio.c (which isom depends on); it is similar for the Matroska demuxer and muxers, except that the mpeg4audio.c dependency can't be avoided. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove outdated dependency of FLV demuxer on mpeg4audioAndreas Rheinhardt2021-02-231-1/+0
| | | | | | | Unneeded since f96a653184e63cea91e08ea75ae60d309e431f40 and b2bb09bcc330156e9d79d7ddfa59f9c5d05ca149. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Don't build mjpegenc_huffman unconditionallyAndreas Rheinhardt2021-02-231-2/+1
| | | | | | | Only the mjpeg and amv encoders as well as its testprogram actually need it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/g2meet, mjpegdec: Factor out common VLC initialization codeAndreas Rheinhardt2021-02-231-2/+2
| | | | | | | | | While just at it, remove the nb_codes parameter: It is redundant (the number of codes is implicitly contained in the array containing how many entries of a specific size there are) and for this reason it might even be wrong, so it is better to check what is actually used instead. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove redundant mjpegdec dependency from tiff decoderAndreas Rheinhardt2021-02-231-1/+1
| | | | | | | | The MJPEG decoder is already activated by configure whenever the tiff decoder is selected; ergo it is unnecessary to add a dependency in the Makefile. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* configure, libavcodec/Makefile: Fix avrn dependenciesAndreas Rheinhardt2021-02-231-1/+1
| | | | | | | | | | | The avrn decoder actually only needs one thing: The MJPEG decoder. Instead the Makefile made it compile mjpegdec and configure required some of the prerequisites of the MJPEG decoder (exif and jpegtables). Even if all the prerequisites of the MJPEG decoder were required, it would still not make the MJPEG decoder usable, because for that the MJPEG decoder needs to be in the list of codecs in codec_list.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove spurios dcaenc dependencyAndreas Rheinhardt2021-02-231-1/+1
| | | | | | It does not need dca.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* configure, libavcodec/Makefile: Remove spurious CAF demuxer dependenciesAndreas Rheinhardt2021-02-231-1/+0
| | | | | | Forgotten in 604fbb3132e88727e496c96c92cfe02748c25a1a. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec: add Simbiosis IMX video decoderPaul B Mahol2021-02-201-0/+1
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* avcodec: add initial exr image encoderPaul B Mahol2021-02-181-0/+1
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* avcodec: add setts bitstream filterPaul B Mahol2021-02-121-0/+1
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* avcodec: add cri parserPaul B Mahol2021-02-091-0/+1
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* avcodec/Makefile: Remove dependency for nonexistent filesAndreas Rheinhardt2021-02-071-1/+0
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/aacdec_fixed: Move fixed-point sinewin tables to its only userAndreas Rheinhardt2021-02-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | The fixed-point AAC decoder is the only user of the fixed-point sinewin tables from sinewin; and it only uses a few of them (about 10% when counting by size). This means that guarding initializing these tables by an AVOnce (as done in 3719122065863f701026632f610175980d42b05a) is unnecessary for them. Furthermore the array of pointers to the individual arrays is also unneeded. Therefore this commit moves these tables directly into aacdec_fixed.c; this is done by ridding the original sinewin.h and sinewin_tablegen.h headers completely of any fixed-point code at the cost of a bit of duplicated code (the alternative is an ugly ifdef-mess). This saves about 58KB from the binary when using hardcoded tables (as these tables are hardcoded in this scenario); when not using hardcoded tables, most of these savings only affect the .bss segment, but the rest (< 1KB) contains relocations (i.e. savings in .data.rel.ro). Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec: add xbm parserPaul B Mahol2021-02-051-0/+1
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* avcodec: add PFM image encoderPaul B Mahol2021-02-021-0/+1
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* avcodec/dolby_e: split decoder and parser more thoroughlyJames Almer2021-01-251-2/+2
| | | | | | | | | Neither module should depend on the other. Move shared functions to its own file for this purpose, and ensure source files are compiled only when the required modules are enabled. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/dolby_e: Split decoder/parser filesNicolas Gaullier2021-01-251-0/+1
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* avcodec/qsvdec: refact, move qsvdec_other.c to qsvdec.cXu Guangxin2021-01-231-7/+7
| | | | | Signed-off-by: Xu Guangxin <guangxin.xu@intel.com> Signed-off-by: Linjie Fu <linjie.justin.fu@gmail.com>
* avcodec/qsvdec: refact, move qsvdec_h2645.c to qsvdec.cXu Guangxin2021-01-231-4/+4
| | | | | Signed-off-by: Xu Guangxin <guangxin.xu@intel.com> Signed-off-by: Linjie Fu <linjie.justin.fu@gmail.com>
* avcodec/Makefile: Make H.263 encoder compilable without MPEG4 encoderAndreas Rheinhardt2021-01-211-1/+2
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Make H.263 decoder compilable without H.263IAndreas Rheinhardt2021-01-211-1/+2
| | | | | | | The only call to ff_intel_h263_decode_picture_header() is already behind "if (CONFIG_H263I_DECODER)". Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove FLAC dependencies on vorbis_dataAndreas Rheinhardt2021-01-211-3/+2
| | | | | | | | | | | 2ef2496cd19eb833f4ad22a5051c11be80d09598 used ff_vorbis_channel_layouts in flac.c, but added a dependency to the FLAC decoder only; lateron aba0278e9fe8e66c078588efe66f6af4db432770 added the dependency of the FLAC parser and encoder on vorbis_data.o. Yet when the original commit was reverted in aba0278e9fe8e66c078588efe66f6af4db432770, the two other dependencies were not removed. This commit fixes this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove dependency of H.263 on FLV codecsAndreas Rheinhardt2021-01-211-2/+4
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/Makefile: Remove unnecessary cbrt_data dependencyAndreas Rheinhardt2021-01-211-1/+1
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* cbs: Implement common parts of cbs-based bitstream filters separatelyMark Thompson2021-01-211-1/+1
| | | | This allows removal of a lot of duplicated code between BSFs.
* cbs_h2645: Merge SEI message handling in common between codecsMark Thompson2021-01-211-2/+2
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* fft: remove 16-bit FFT and MDCT codeLynne2021-01-141-6/+5
| | | | | | No longer used by anything. Unfortunately the old FFT_FLOAT/FFT_FIXED_32 is left as-is. It's simply too much work for code meant to be all removed anyway.
* ac3enc_fixed: convert to 32-bit sample formatLynne2021-01-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AC3 encoder used to be a separate library called "Aften", which got merged into libavcodec (literally, SVN commits and all). The merge preserved as much features from the library as possible. The code had two versions - a fixed point version and a floating point version. FFmpeg had floating point DSP code used by other codecs, the AC3 decoder including, so the floating-point DSP was simply replaced with FFmpeg's own functions. However, FFmpeg had no fixed-point audio code at that point. So the encoder brought along its own fixed-point DSP functions, including a fixed-point MDCT. The fixed-point MDCT itself is trivially just a float MDCT with a different type and each multiply being a fixed-point multiply. So over time, it got refactored, and the FFT used for all other codecs was templated. Due to design decisions at the time, the fixed-point version of the encoder operates at 16-bits of precision. Although convenient, this, even at the time, was inadequate and inefficient. The encoder is noisy, does not produce output comparable to the float encoder, and even rings at higher frequencies due to the badly approximated winow function. Enter MIPS (owned by Imagination Technologies at the time). They wanted quick fixed-point decoding on their FPUless cores. So they contributed patches to template the AC3 decoder so it had both a fixed-point and a floating-point version. They also did the same for the AAC decoder. They however, used 32-bit samples. Not 16-bits. And we did not have 32-bit fixed-point DSP functions, including an MDCT. But instead of templating our MDCT to output 3 versions (float, 32-bit fixed and 16-bit fixed), they simply copy-pasted their own MDCT into ours, and completely ifdeffed our own MDCT code out if a 32-bit fixed point MDCT was selected. This is also the status quo nowadays - 2 separate MDCTs, one which produces floating point and 16-bit fixed point versions, and one sort-of integrated which produces 32-bit MDCT. MIPS weren't all that interested in encoding, so they left the encoder as-is, and they didn't care much about the ifdeffery, mess or quality - it's not their problem. So the MDCT/FFT code has always been a thorn in anyone looking to clean up code's eye. Backstory over. Internally AC3 operates on 25-bit fixed-point coefficients. So for the floating point version, the encoder simply runs the float MDCT, and converts the resulting coefficients to 25-bit fixed-point, as AC3 is inherently a fixed-point codec. For the fixed-point version, the input is 16-bit samples, so to maximize precision the frame samples are analyzed and the highest set bit is detected via ac3_max_msb_abs_int16(), and the coefficients are then scaled up via ac3_lshift_int16(), so the input for the FFT is always at least 14 bits, computed in normalize_samples(). After FFT, the coefficients are scaled up to 25 bits. This patch simply changes the encoder to accept 32-bit samples, reusing the already well-optimized 32-bit MDCT code, allowing us to clean up and drop a large part of a very messy code of ours, as well as prepare for the future lavu/tx conversion. The coefficients are simply scaled down to 25 bits during windowing, skipping 2 separate scalings, as the hacks to extend precision are simply no longer necessary. There's no point in running the MDCT always at 32 bits when you're going to drop 6 bits off anyway, the headroom is plenty, and the MDCT rounds properly. This also makes the encoder even slightly more accurate over the float version, as there's no coefficient conversion step necessary. SIZE SAVINGS: ARM32: HARDCODED TABLES: BASE - 10709590 DROP DSP - 10702872 - diff: -6.56KiB DROP MDCT - 10667932 - diff: -34.12KiB - both: -40.68KiB DROP FFT - 10336652 - diff: -323.52KiB - all: -364.20KiB SOFTCODED TABLES: BASE - 9685096 DROP DSP - 9678378 - diff: -6.56KiB DROP MDCT - 9643466 - diff: -34.09KiB - both: -40.65KiB DROP FFT - 9573918 - diff: -67.92KiB - all: -108.57KiB ARM64: HARDCODED TABLES: BASE - 14641112 DROP DSP - 14633806 - diff: -7.13KiB DROP MDCT - 14604812 - diff: -28.31KiB - both: -35.45KiB DROP FFT - 14286826 - diff: -310.53KiB - all: -345.98KiB SOFTCODED TABLES: BASE - 13636238 DROP DSP - 13628932 - diff: -7.13KiB DROP MDCT - 13599866 - diff: -28.38KiB - both: -35.52KiB DROP FFT - 13542080 - diff: -56.43KiB - all: -91.95KiB x86: HARDCODED TABLES: BASE - 12367336 DROP DSP - 12354698 - diff: -12.34KiB DROP MDCT - 12331024 - diff: -23.12KiB - both: -35.46KiB DROP FFT - 12029788 - diff: -294.18KiB - all: -329.64KiB SOFTCODED TABLES: BASE - 11358094 DROP DSP - 11345456 - diff: -12.34KiB DROP MDCT - 11321742 - diff: -23.16KiB - both: -35.50KiB DROP FFT - 11276946 - diff: -43.75KiB - all: -79.25KiB PERFORMANCE (10min random s32le): ARM32 - before - 39.9x - 0m15.046s ARM32 - after - 28.2x - 0m21.525s Speed: -30% ARM64 - before - 36.1x - 0m16.637s ARM64 - after - 36.0x - 0m16.727s Speed: -0.5% x86 - before - 184x - 0m3.277s x86 - after - 190x - 0m3.187s Speed: +3%
* avcodec/wavpack: Deduplicate exp and log tablesAndreas Rheinhardt2021-01-081-2/+2
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/twinvq, metasound_data: Deduplicate lsp tablesAndreas Rheinhardt2021-01-081-1/+1
| | | | | | Saves about 24KB. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/aacps: Factor out code shared by float and fixed point decoderAndreas Rheinhardt2020-12-311-2/+2
| | | | | | | Saves about 7KiB. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/speedhqenc: Call correct functionAndreas Rheinhardt2020-12-111-1/+1
| | | | | | | | | | | | | | | | | | | Up until now, the SpeedHQ encoder called a wrong function for init: void ff_init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len); Yet the first argument actually used is of type RLTable; the size of said struct is less than 256 if the size of a pointer is four, leading to an access beyond the end of the RLTable. This commit fixes this by calling the actually intended function: init_uni_ac_vlc() from mpeg12enc.c. It was intended to use this function [1], yet doing so was forgotten when the patch was actually applied. [1]: https://ffmpeg.org/pipermail/ffmpeg-devel/2020-July/266187.html Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* smvjpegdec: merge into mjpegdecAnton Khirnov2020-12-101-1/+0
| | | | | | | | | | | | | | | | | | | | | | | SMVJPEG stores frames as slices of a big JPEG image. The decoder is implemented as a wrapper that instantiates a full internal MJPEG decoder, then forwards the decoded frames with offset data pointers. This is unnecessarily complex and fragile, not supporting useful decoder capabilities like direct rendering. Re-implement the decoder inside the MJPEG decoder, which is accomplished by returning each decoded frame multiple times, setting cropping information appropriately on each instance. One peculiar aspect of the previous design is that since - the smvjpeg decoder returns one frame per input packet - there are multiple frames in each packets (the aformentioned slices) the demuxer needs to return each packet multiple times. This is now also eliminated - the demuxer now returns each packet exactly once, with the duration set to the number of frames it decodes to. This also removes one of the last remaining internal uses of the old video decoding API.
* avcodec/mpegaudio_tablegen: Make exponential LUT sharedAndreas Rheinhardt2020-12-081-1/+4
| | | | | | | | | | | | | | | | Both the fixed as well as the floating point mpegaudio decoders use LUTs of type int8_t and uint32_t with 32K entries each; these tables are completely the same, yet they are not shared. This commit makes them shared. When both fixed as well as floating point decoders are enabled, this saves 160KiB from the bss segment for a normal build (translating into 160KiB less memory usage if both a shared as well as a floating point decoder have actually been used) and 160KiB from the binary for a build with hardcoded tables. It also means that the code to create said LUTs is no longer duplicated (for a normal build). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/mpegaudiodec: Share fixed and floating point data and init codeAndreas Rheinhardt2020-12-081-1/+1
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/msp2dec: Microsoft Paint (MSP) version 2 decoderPeter Ross2020-12-061-0/+1
| | | | Signed-off-by: Peter Ross <pross@xvid.org>
* avcodec/hevc_sei: add support for HDR10+ metadataMohammad Izadi2020-12-051-1/+2
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec: add SpeedHQ encoderJean-Baptiste Kempf2020-11-241-0/+1
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* avcodec/dxva2: add AV1 decode supportHendrik Leppkes2020-11-121-0/+2
| | | | Signed-off-by: Hendrik Leppkes <h.leppkes@gmail.com>
* avcodec/nvdec: add av1 hwaccelTimo Rothenpieler2020-11-111-0/+1
| | | | | Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org> Co-authored-by: James Almer <jamrial@gmail.com>
* avcodec: add av1 VAAPI decoderFei Wang2020-11-021-0/+1
| | | | | | | | | Example cmdline: ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -v verbose \ -c:v av1 -i input.ivf -pix_fmt yuv420p -vsync passthrough -f md5 \ -y out.md5 Signed-off-by: Fei Wang <fei.w.wang@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-06 18:24:34 +0000