FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	abaeeb3ce0	avcodec/dvenc: Change quantizer dead zone default to 7 This improves the quality and reduces the "blocking" in flat areas Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Michael Niedermayer	fea7bc9e7b	avcodec/dvenc: Support adjusting the quantizer deadzone Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	7 years ago
Diego Biurrun	de452e5037	pixblockdsp: Change type of stride parameters to ptrdiff_t This avoids SIMD-optimized functions having to sign-extend their line size argument manually to be able to do pointer arithmetic. Also adjust parameter names to be "stride" everywhere.	8 years ago
Diego Biurrun	b7f98659f2	Remove unnecessary get_bits.h #includes	9 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	7c6eb0a1b7	lavc: AV-prefix all codec flags Convert doxygen to multiline and express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	e36db49b7b	avcodec: Add a min size parameter to ff_alloc_packet2() 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>	9 years ago
Vittorio Giovara	40cf1bbacc	Deprecate avctx.coded_frame 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>	9 years ago
Vittorio Giovara	d6604b29ef	Gather all coded_frame allocations and free functions to a single place 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>	9 years ago
James Almer	ba625dd8a1	avcodec: use av_mod_uintp2() where useful Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>	10 years ago
Christophe Gisquet	cb335b3af2	dvenc: fix 2x4x8 (interlaced) weight table Since the decoder has been fixed to output something similar to other implementations, the encoder weight table needed this fix. Reference PSNR values on a progressive sequence (from tiny_psnr) from a chained encoding and decoding: Full progressive: stddev: 0.74 PSNR: 50.69 MAXDIFF: 19 Before: stddev: 1.43 PSNR: 44.97 MAXDIFF: 17 This patch: stddev: 0.76 PSNR: 50.44 MAXDIFF: 14 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Steve Jiekak	a32c3c2392	replaced av_dv_codec_profile by av_dv_codec_profile2 in encoder and dv muxers Signed-off-by: Steve Jiekak <devaureshy@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Christophe Gisquet	beb944786e	dvenc: mark encoder as intra And thus allow various multithreading. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Gabriel Dume	ee0ebd3c14	dv: K&R formatting cosmetics Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Diego Biurrun	7835c24e19	dv: Update DV-profile-related functions to current public API	10 years ago
Michael Niedermayer	c527c14d63	avcodec/dvenc: clear all dsp contexts Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	2d60444331	dsputil: Split motion estimation compare bits off into their own context	10 years ago
Diego Biurrun	f46bb608d9	dsputil: Split off pixel block routines into their own context	11 years ago
Anton Khirnov	f6ee61fb05	lavc: export DV profile API used by muxer/demuxer as public	11 years ago
Diego Biurrun	a9aee08d90	dsputil: Split off FDCT bits into their own context	11 years ago
Diego Biurrun	e63b818dbe	dv: Properly split decoder and encoder initialization	11 years ago
Anton Khirnov	650dee63c8	dv: get rid of global non-const tables Instead, store them in the context and compute on each parameter change.	11 years ago
Anton Khirnov	778111592b	dvenc: initialize the profile only once, at init We do not allow the frame parameters to change during encoding, so there is no need to do this for each frame.	11 years ago
Diego Biurrun	5f92204370	dsputil: Move DV-specific ff_zigzag248_direct table to dvdata	11 years ago
Diego Biurrun	984e339866	avcodec: Consistently name encoder init functions foo_encode_init	11 years ago
Anton Khirnov	d4f1188d1a	dv: use AVFrame API properly	11 years ago
Diego Biurrun	97d19c2fec	dv: Split off DV video encoder into its own file	11 years ago
Diego Biurrun	21710ea821	dv: Move DV VLC data tables out of header file	11 years ago
Diego Biurrun	3cbe112653	dv: Split DV data table declarations into their own header This is necessary to avoid target config settings bleeding into the host compilation process with hardcoded tables and the DV VLC tables no longer present as static tables in a header file.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Michael Niedermayer	e458fd6cf9	libavcodec/dv.c: Fix duplicate words Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Luca Barbato	afe03092dd	lavc: move put_bits_left in put_bits.h	12 years ago
Anton Khirnov	3b199d29cd	lavc decoders: properly initialize AVFrame.	12 years ago
Diego Biurrun	c242bbd8b6	Remove unnecessary dsputil.h #includes	12 years ago
Diego Biurrun	218aefce44	dsputil: Move LOCAL_ALIGNED macros to libavutil	12 years ago
Diego Biurrun	88bd7fdc82	Drop DCTELEM typedef It does not help as an abstraction and adds dsputil dependencies. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	12 years ago
Michael Niedermayer	5da885b84d	dv: use av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	2b1a2466c7	dv: change assert(a2 < 4) to av_assert() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Tomas Härdin	8cbb8f5357	dv: Set FS flag from AVFrame.top_field_first Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5e689b65ce	dv: zero dsp before init, this fixes use of uninitialized dct_bits Fixes CID732292 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Carl Eugen Hoyos	6b87f0707d	Do not try to encode DVCPRO HD, it produces broken files.	13 years ago
Mans Rullgard	c75eca9d37	dvenc: do not call dsputil functions with stride not a multiple of 16 Allowing dsputil functions to assume the stride is a multiple of 16 even for smaller block sizes can simplify their implementation. This appears to be the only place this guarantee is not met. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Michael Niedermayer	70d54392f5	lowres2 support. The new lowres support is limited to decoders where lowres decoding is possible in high quality. I was not able to measure any speed difference, but if one is found the 2-3 lines that might affect speed can be made compile time conditional Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Mans Rullgard	2bcbd98459	Remove lowres video decoding This feature is complex, of questionable utility, and slows down normal decoding. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Diego Biurrun	2b98377935	dv: Initialize encoder tables during encoder init.	13 years ago
Diego Biurrun	a3dbd459ff	dv: Merge dvquant.h into dvdata.c where all other DV tables reside.	13 years ago
Diego Biurrun	05afc5f57d	dv: Move static tables only used in one place to where they are used.	13 years ago
Martin Storsjö	00c3b67b8a	cosmetics: Align codec declarations Also break some long lines, remove codec function placeholder comments and add spaces in sample/pixel format lists. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago

46 Commits (a47bd1cd1c714ac94cea9d3a26b58de521a7debc)