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* lavc: add API for exporting reconstructed frames from encodersAnton Khirnov2022-08-02
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* avcodec: add common fflcms2 boilerplateNiklas Haas2022-07-30
| | | | | | | | | | | | | Handling this in general code makes more sense than handling it in individual codec files, because it would be a lot of unnecessary code duplication for the plenty of formats that support exporting ICC profiles (jpg, png, tiff, webp, jxl, ...). encode.c and decode.c will be in charge of initializing this state as needed, so we merely need to make sure to uninit it afterwards from the common destructor path. Signed-off-by: Niklas Haas <git@haasn.dev>
* avcodec/aacdec: remove skip samples multiplierJames Almer2022-07-22
| | | | | | | | | The amount of padding samples reported by containers take into account the extended samplerate in HE-AAC. Fixes ticket #9671. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/internal: Hide stuff only used by the core decode APIAndreas Rheinhardt2022-05-12
| | | | | | | | | | | | | | | | | | | | | | The general decoding API uses bitstream filters and an AVFifo and therefore AVCodecInternal contains pointers to an AVBSFContext and to an AVFifo and lavc/internal.h includes lavc/bsf.h and lavu/fifo.h. Yet actually, only two files are supposed to use these, namely avcodec.c and (mainly) decode.c. For all the other files, it should be an opaque type that they should not touch and that they need not know anything about. This can be achieved by not including these headers and using the structs instead of the corresponding typedefs. This also forces translation units that really use the BSF and the FIFO APIs themselves to include the relevant headers directly instead of relying on indirect inclusions (up until now, even avcodec.c and decode.c relied on fifo.h to be included by internal.h). Of course, it also avoids unnecessary rebuilds when bsf.h or fifo.h change. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavc/encode: drop EncodeSimpleContextAnton Khirnov2022-04-13
| | | | It has only a single member.
* avcodec/internal: Move FF_QSCALE_TYPE_* to mpegvideodec.hAndreas Rheinhardt2022-03-23
| | | | | | These values are only used by mpegvideo-based decoders. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal, avfilter/qp_table: Remove unused FF_QSCALE_TYPEsAndreas Rheinhardt2022-03-23
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Move FF_DEFAULT_QUANT_BIAS to mpegvideoenc.hAndreas Rheinhardt2022-03-21
| | | | | | Only used there. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Move FF_SIGNBIT and ff_log2_run to mathops.hAndreas Rheinhardt2022-03-21
| | | | | | | It is a more fitting place for them. Also move the definition of ff_log2_run to mathtables.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/codec_internal: Add FFCodec, hide internal part of AVCodecAndreas Rheinhardt2022-03-21
| | | | | | | | | | | | | | | | Up until now, codec.h contains both public and private parts of AVCodec. This exposes the internals of AVCodec to users and leads them into the temptation of actually using them and forces us to forward-declare structures and types that users can't use at all. This commit changes this by adding a new structure FFCodec to codec_internal.h that extends AVCodec, i.e. contains the public AVCodec as first member; the private fields of AVCodec are moved to this structure, leaving codec.h clean. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Move FF_CODEC_CAP_* to a new header codec_internal.hAndreas Rheinhardt2022-03-21
| | | | | | | | | | Also move FF_CODEC_TAGS_END as well as struct AVCodecDefault. This reduces the amount of files that have to include internal.h (which comes with quite a lot of indirect inclusions), as e.g. most encoders don't need it. It is furthemore in preparation for moving the private part of AVCodec out of the public codec.h. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavc: switch to the new channel layout APIVittorio Giovara2022-03-15
| | | | | | | | Since the request_channel_layout is used only by a handful of codecs, move the option to codec private contexts. Signed-off-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/internal.h: Move avpriv_find_start_code() to startcode.hAndreas Rheinhardt2022-02-08
| | | | | | | | This is by definition the appropriate place for it. Remove all the now unnecessary libavcodec/internal.h inclusions; also remove other unnecessary headers from the affected files. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* lavc/avcodec: switch to new FIFO APIAnton Khirnov2022-02-07
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* avcodec/utils: Unavpriv avpriv_toupper4()Andreas Rheinhardt2022-01-04
| | | | | | | | | | | | | | | | This function is quite small (96B with GCC 11.2 on x64 Ubuntu 21.10 at -O3), making it more economical to duplicate it into libavformat instead of exporting it as avpriv: Doing so saves 2x24B in .dynsim, 2x16B in .dynstr, 2x2B .gnu.version, 24B in .rela.plt, 16B in .plt, 16B in .plt.sec (if enabled), 4B .gnu.hash; besides the actual duplicated code this also adds 2x8B .eh_frame_hdr and 24B .eh_frame. In other words: Duplicating is neutral size-wise (it is also presumed neutral for other systems). Given that it avoids the runtime overhead of dynamic symbols, it is advantageouos to duplicate the function. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Remove unused av_export_avcodecAndreas Rheinhardt2022-01-04
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Allow receive_frame codecs to use decode_simple pktAndreas Rheinhardt2021-11-07
| | | | | | | | | | | | | | | | | | Decoders implementing the receive_frame API currently mostly use stack packets to temporarily hold the packet they receive from ff_decode_get_packet(). This role directly parallels the role of in_pkt, the spare packet used in decode_simple_internal for the decoders implementing the traditional decoding API. Said packet is unused by the generic code for the decoders implementing the receive_frame API, so allow them to use it to fulfill the function it already fulfills for the traditional API for both APIs. There is only one caveat in this: The packet is automatically unreferenced in avcodec_flush_buffers(). But this is actually positive as it means the decoders don't have to do this themselves (in case the packet is preserved between receive_frame calls). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/encode: Set AV_PKT_FLAG_KEY based upon AV_CODEC_PROP_INTRA_ONLYAndreas Rheinhardt2021-09-28
| | | | | | | | | | | Currently, the AV_PKT_FLAG_KEY is automatically set for audio encoders; yet this is wrong, as both MLP and TrueHD have non-keyframes. So set it based upon AV_CODEC_PROP_INTRA_ONLY (from the corresponding AVCodecDescriptor) instead. This also sets it for some video codecs, which is intended. Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/internal: Update AVCodecInternal.is_copy documentationAndreas Rheinhardt2021-09-26
| | | | | | Forgotten in 1f4cf92cfbd3accbae582ac63126ed5570ddfd37. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* Move ff_tlog() from lavc/internal.h to lavu/internal.hAndreas Rheinhardt2021-08-05
| | | | | | | It is also used by libavfilter and it is only natural to define it alongside ff_dlog(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/avcodec: Stop including bsf.h in avcodec.hAndreas Rheinhardt2021-07-22
| | | | | | Also include bsf.h directly wherever it is used. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/decode: add an internal codec flag to signal a decoder sets all ↵James Almer2021-06-21
| | | | | | | | | | output frame properties Decoders like cuviddec ignore and overwrite all the properties set by the generic code as derived from AVCodecInternal.last_pkt_props. This flag ensures libavcodec will not store and potentially queue input packets that ultimately will not be used. Signed-off-by: James Almer <jamrial@gmail.com>
* 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/internal: Remove outdated documentation of ff_alloc_packet2()Andreas Rheinhardt2021-06-08
| | | | | | | Its documentation described the way user-supplied buffers worked before 93016f5d1d280f9cb7856883af287fa66affc04c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/avcodec: Store whether AVCodec->close needs to be calledAndreas Rheinhardt2021-04-28
| | | | | | | | | | | | | | | Right now all AVCodecContexts except those using frame-threaded decoding call the codec's init function and expect its close function to be called. In order to make sure that the close function is not called for frame-threaded decoding ff_frame_thread_free() resets AVCodecContext.codec (and because of this it has to free the private AVOptions of the main AVCodecContext itself). This is not obvious and potentially fragile. Instead add a field to AVCodecInternal that indicates whether close should be called for this AVCodecContext. It is always zero when using frame-threaded decoding, so that resetting the codec is no longer necessary and has been removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec: Remove deprecated old encode/decode APIsAndreas Rheinhardt2021-04-27
| | | | | | | | Deprecated in commits 7fc329e2dd6226dfecaa4a1d7adf353bf2773726 and 31f6a4b4b83aca1d73f3cfc99ce2b39331970bf3. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> Signed-off-by: James Almer <jamrial@gmail.com>
* lavc: replace internal use of AV_CODEC_CAP_AUTO_THREADS with an internal capAnton Khirnov2021-03-16
| | | | | | | | | | | | | | | | AV_CODEC_CAP_AUTO_THREADS was originally added in b4d44a45f9a to mark codecs that spawn threads internally and are able to select an optimal threads count by themselves (all such codecs are wrappers around external libraries). It is used by lavc generic code to check whether it should handle thread_count=0 itself or pass the zero directly to the codec implementation. Within this meaning, it is clearly supposed to be an internal cap rather than a public one, since from the viewpoint of a libavcodec user, lavc ALWAYS handles thread_count=0. Whether it happens in the generic code or within the codec internals is not a meaningful difference for the caller. External aspects of this flag will be dealt with in the following commit.
* avcodec/decode: port last_pkt_props to AVFifoBufferJames Almer2021-03-03
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* lavc: shedule old encoding/decoding API for removalAnton Khirnov2021-01-26
| | | | | | | | It has been deprecated for 4 years and certain new codecs do not work with it. Also include AVCodecContext.refcounted_frames, as it has no effect with the new API.
* avcodec/utils: Remove ff_codec_open2_recursive()Andreas Rheinhardt2020-12-04
| | | | | | | | | | | | | | | This function existed to enable codecs with non-threadsafe init functions to initialize other codecs despite the fact that normally no two codecs with non-threadsafe init functions can be initialized at the same time (there is a mutex guarding this). Yet there are no users of this function any more as all users have been made thread-safe (switching away from ff_codec_open2_recursive() was required for this as said function requires the caller to hold the lock to the mutex guarding the initializations and this is only true for codecs with the FF_CODEC_CAP_INIT_THREADSAFE flag unset); so remove it. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* lavc: un-avpriv avpriv_bprint_to_extradata()Anton Khirnov2020-10-28
| | | | | | It has not been used outside of lavc since 6f69f7a8bf6. Also, move it to the only place where it is used.
* avcodec/decode: use a packet list to store packet propertiesJames Almer2020-09-15
| | | | | | | | | Keeping only the latest packet fed to the decoder works only for decoders that return a frame immediately after every consumed packet. Decoders that consume several packets before they return a frame will fill said frame with properties taken from the last consumed packet instead of the earliest. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/decode: move the ff_decode_frame_props() prototype to the proper headerJames Almer2020-08-20
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/utils: calculate frame number of HEVC if the framerate > 30FPSLimin Wang2020-08-16
| | | | Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
* avcodec: move ff_alloc_a53_sei() to atsc_53James Almer2020-08-15
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/internal: remove unused out_frame field from DecodeSimpleContextJames Almer2020-07-01
| | | | | | It was introduced in 061a0c14bb but apparently never used Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/utils: add ff_alloc_timecode_sei() for hevc timecode seiLimin Wang2020-06-28
| | | | Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
* avcodec/encode: restructure the old encode APIJames Almer2020-06-18
| | | | | | | Following the same logic as 061a0c14bb, this commit turns the old encode API into a wrapper for the new one. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/encode: restructure the core encoding codeJames Almer2020-06-18
| | | | | | | | | | | | | | | | This commit follows the same logic as 061a0c14bb, but for the encode API: The new public encoding API will no longer be a wrapper around the old deprecated one, and the internal API used by the encoders now consists of a single receive_packet() callback that pulls frames as required. amf encoders adapted by James Almer librav1e encoder adapted by James Almer nvidia encoders adapted by James Almer MediaFoundation encoders adapted by James Almer vaapi encoders adapted by Linjie Fu v4l2_m2m encoders adapted by Andriy Gelman Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/internal: move packet related functions to their own headerJames Almer2020-06-02
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/encode: Remove ff_alloc_packetAndreas Rheinhardt2020-06-01
| | | | | | | It is no longer used anymore. Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
* avcodec/decode: remove unused AVCodecInternal compat_decode fieldJames Almer2020-05-09
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/decode: use a single list bsf for codec decode bsfsMarton Balint2020-05-02
| | | | Signed-off-by: Marton Balint <cus@passwd.hu>
* lavc: do not implicitly share the frame pool between threadsAnton Khirnov2020-04-10
| | | | | | | | | | | | | Currently the frame pool used by the default get_buffer2() implementation is a single struct, allocated when opening the decoder. A pointer to it is simply copied to each frame thread and we assume that no thread attempts to modify it at an unexpected time. This is rather fragile and potentially dangerous. With this commit, the frame pool is made refcounted, with the reference being propagated across threads along with other context variables. The frame pool is now also immutable - when the stream parameters change we drop the old reference and create a new one.
* lavc: replace AVCodecInternal.allocate_progress with an internal capAnton Khirnov2020-04-10
| | | | This is a constant codec property, so a capability flag is more appropriate.
* lavc/dvdsubdec: Move palette parsing to new functionMichael Kuron2020-02-04
| | | | | Signed-off-by: Michael Kuron <michael.kuron@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec/avcodec: Add codec_tags array to AVCodecMichael Niedermayer2020-01-22
| | | | | | | | This allows the fuzzer to target meaningfull codec tags instead of hunting the 4gb space, which it seems to have problems with. Suggested-by: James Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* avcodec: add a Producer Reference Time AVPacketSideData typeJames Almer2020-01-15
| | | | Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/decode: add a flags parameter to ff_reget_buffer()James Almer2019-09-04
| | | | | | | | | | Some decoders may not need a writable buffer in some specific cases, but only a reference to the existing buffer with updated frame properties instead, for the purpose of returning duplicate frames. For this, the FF_REGET_BUFFER_FLAG_READONLY flag is added, which will prevent potential allocations and buffer copies when they are not needed. Signed-off-by: James Almer <jamrial@gmail.com>
* avcodec/internal: Bump sane_nb_chanelsMichael Niedermayer2019-08-21
| | | | | | | | This allows decoding more als reference samples Suggested-by: Thilo Borgmann <thilo.borgmann@mail.de> Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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