FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	56e9e0273a	avcodec/encode: Always use intermediate buffer in ff_alloc_packet2() 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>	4 years ago
Andreas Rheinhardt	e44e41edce	avcodec/cfhdenc: Mark encoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	a247ac640d	avcodec: Constify AVCodecs 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>	4 years ago
Andreas Rheinhardt	c81b8e04aa	Avoid intermediate bitcount for number of bytes in PutBitContext Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Paul B Mahol	33025ab976	avcodec/cfhdenc: do not try to encode junk	4 years ago
Paul B Mahol	fbfa78508b	avcodec/cfhdenc: add padding to each decomposition	4 years ago
Paul B Mahol	d69f4be1c6	avcodec/cfhdenc: refactor DSP code for CFHD encoder This is needed to implement x86 SIMD.	4 years ago
Paul B Mahol	82472afe18	avcodec/cfhdenc: use pts instead of frame number Makes encodes bitexact with different number of threads.	4 years ago
Andreas Rheinhardt	a489b6a8e3	avcodec/cfhdenc: Fix leaks on allocation errors The CineForm HD encoder attempts to allocate several buffers in its init function; yet if only some of these allocations succeed, the successfully allocated buffers leak. This is fixed by setting the FF_CODEC_CAP_INIT_CLEANUP flag. Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Paul B Mahol	9f702fc8f4	avcodec: extend CFHD description	4 years ago
Paul B Mahol	3f58dbca72	avcodec/cfhdenc: mark filter as always inline	4 years ago
Paul B Mahol	ba0825626a	avcodec/cfhdenc: optimize writting of small runcodes	4 years ago
Paul B Mahol	16b79f3d3a	avcodec/cfhdenc: improve quality vs size ratio	4 years ago
Paul B Mahol	14b84a2e99	avcodec/cfhdenc: free alpha buffer on closing	4 years ago
Paul B Mahol	0a8742a1e6	avcodec/cfhdenc: add gbrap12 pixel format support	4 years ago
Paul B Mahol	8d48e8d251	avcodec/cfhdenc: compand coefficients Also use -quality private option and add more modes.	4 years ago
Paul B Mahol	a96506f017	avcodec/cfhdenc: also write FrameNumber tag	4 years ago
Paul B Mahol	d2b9cb1132	avcodec/cfhdenc: fix setting default compression level	4 years ago
Paul B Mahol	65516b2cd0	avcodec/cfhdenc: extend quantization table Should give better quality.	4 years ago
Paul B Mahol	b4ae780693	avcodec/cfhdenc: fix PrescaleTable for YUV422P10	4 years ago
Paul B Mahol	4e27817629	avcodec: add CFHD encoder	4 years ago

21 Commits (84e4e60fdcbb2fd9193f6a0704caefbfb64092cb)