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* all: fix whitespace/new-line issuesTimo Rothenpieler8 days1-2/+0
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* avcodec/mpegvideoenc: Add MPVEncContextAndreas Rheinhardt2025-03-261-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of the fields of MpegEncContext (which is also used by decoders) are actually only used by encoders. Therefore this commit adds a new encoder-only structure and moves all of the encoder-only fields to it except for those which require more explicit synchronisation between the main slice context and the other slice contexts. This synchronisation is currently mainly provided by ff_update_thread_context() which simply copies most of the main slice context over the other slice contexts. Fields which are moved to the new MPVEncContext no longer participate in this (which is desired, because it is horrible and for the fields b) below wasteful) which means that some fields can only be moved when explicit synchronisation code is added in later commits. More explicitly, this commit moves the following fields: a) Fields not copied by ff_update_duplicate_context(): dct_error_sum and dct_count; the former does not need synchronisation, the latter is synchronised in merge_context_after_encode(). b) Fields which do not change after initialisation (these fields could also be put into MPVMainEncContext at the cost of an indirection to access them): lambda_table, adaptive_quant, {luma,chroma}_elim_threshold, new_pic, fdsp, mpvencdsp, pdsp, {p,b_forw,b_back,b_bidir_forw,b_bidir_back,b_direct,b_field}_mv_table, [pb]_field_select_table, mb_{type,var,mean}, mc_mb_var, {min,max}_qcoeff, {inter,intra}_quant_bias, ac_esc_length, the *_vlc_length fields, the q_{intra,inter,chroma_intra}_matrix{,16}, dct_offset, mb_info, mjpeg_ctx, rtp_mode, rtp_payload_size, encode_mb, all function pointers, mpv_flags, quantizer_noise_shaping, frame_reconstruction_bitfield, error_rate and intra_penalty. c) Fields which are already (re)set explicitly: The PutBitContexts pb, tex_pb, pb2; dquant, skipdct, encoding_error, the statistics fields {mv,i_tex,p_tex,misc,last}_bits and i_count; last_mv_dir, esc_pos (reset when writing the header). d) Fields which are only used by encoders not supporting slice threading for which synchronisation doesn't matter: esc3_level_length and the remaining mb_info fields. e) coded_score: This field is only really used when FF_MPV_FLAG_CBP_RD is set (which implies trellis) and even then it is only used for non-intra blocks. For these blocks dct_quantize_trellis_c() either sets coded_score[n] or returns a last_non_zero value of -1 in which case coded_score will be reset in encode_mb_internal(). Therefore no old values are ever used. The MotionEstContext has not been moved yet. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avutil/common: Don't auto-include mem.hAndreas Rheinhardt2024-03-311-0/+1
| | | | | | | | | | | There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/snow_dwt: Fix left shifts of negative numbersAndreas Rheinhardt2022-10-241-4/+4
| | | | | | Affected the vsynth(1|2|_lena)-snow(|-hpel) tests. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/me_cmp: Constify me_cmp_func buffer parametersAndreas Rheinhardt2022-07-311-7/+7
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* all: Replace if (ARCH_FOO) checks by #if ARCH_FOOAndreas Rheinhardt2022-06-151-2/+3
| | | | | | | | | | | | | | | | | | This is more spec-compliant because it does not rely on dead-code elimination by the compiler. Especially MSVC has problems with this, as can be seen in https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/296373.html or https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/297022.html This commit does not eliminate every instance where we rely on dead code elimination: It only tackles branching to the initialization of arch-specific dsp code, not e.g. all uses of CONFIG_ and HAVE_ checks. But maybe it is already enough to compile FFmpeg with MSVC with whole-programm-optimizations enabled (if one does not disable too many components). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Replace all occurences of av_mallocz_array() by av_calloc()Andreas Rheinhardt2021-09-201-1/+1
| | | | | | | They do the same. Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/snow_dwt: Make ff_snow_(horizont|vertic)al_compose97i staticAndreas Rheinhardt2021-09-081-8/+8
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/snow_dwt: Remove ff_ prefix from ff_spatial_idwt_init() and ↵Michael Niedermayer2015-05-181-4/+4
| | | | | | | | ff_spatial_idwt_slice() They are only used once in the file in which they are defined Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/snow: mark dwt init as av_coldMichael Niedermayer2015-02-271-2/+2
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* Factorize avpriv_mirror() outMichael Niedermayer2015-01-051-40/+30
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* snow_dwt: Don't try and free members of non-existent arraysDerek Buitenhuis2014-12-151-2/+7
| | | | | | | | If allocation fails earlier on, and the next frame is processed, the slice buffer could be left in a state where line and data_stack have already been freed, or are otherwise null pointers. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* Merge commit '9c12c6ff9539e926df0b2a2299e915ae71872600'Michael Niedermayer2014-11-241-7/+7
| | | | | | | | | | | | | * commit '9c12c6ff9539e926df0b2a2299e915ae71872600': motion_est: convert stride to ptrdiff_t Conflicts: libavcodec/me_cmp.c libavcodec/ppc/me_cmp.c libavcodec/x86/me_cmp_init.c See: 9c669672c7fd45ef1cad782ab551be438ceac6cd Merged-by: Michael Niedermayer <michaelni@gmx.at>
* Merge commit '2d60444331fca1910510038dd3817bea885c2367'Michael Niedermayer2014-07-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | * commit '2d60444331fca1910510038dd3817bea885c2367': dsputil: Split motion estimation compare bits off into their own context Conflicts: configure libavcodec/Makefile libavcodec/arm/Makefile libavcodec/dvenc.c libavcodec/error_resilience.c libavcodec/h264.h libavcodec/h264_slice.c libavcodec/me_cmp.c libavcodec/me_cmp.h libavcodec/motion_est.c libavcodec/motion_est_template.c libavcodec/mpeg4videoenc.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/x86/Makefile libavcodec/x86/me_cmp_init.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/snow_dwt: fix "incompatible pointer type" warningsMichael Niedermayer2014-05-031-7/+7
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avcodec/snow_dwt: use av_malloc(z)_array()Michael Niedermayer2014-04-231-3/+3
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* lavc: split snow and dirac DWTsMichael Niedermayer2013-01-141-0/+865
There is only about 4 lines of common code, so it alot cleaner when seperated. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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