FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	5b8c18495c	avcodec/cljrenc: Don't use too big buffers, don't copy them, set CAP_DR1 Up until now, the cljr encoder used buffers that were too big by a factor of eight (probably bit/byte confusion). This has been fixed. And because the needed buffer size can be easily calculated in advance, one can avoid the implicit use of an intermediate buffer and can even allow user-supplied buffers. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.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
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
Nidhi Makhijani	373a6dda54	cljr: split decoder and encoder Signed-off-by: Diego Biurrun <diego@biurrun.de>	11 years ago
Michael Niedermayer	ec1ed64506	avcodec/cljr: require (v)strict -1 to use width %4 != 0 Suggested-by: kurosu Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	6dc709f0f5	avcodec/cljr: support width%4 encoding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	59a70422b1	avcodec/cljr: remove coded_frame code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Anton Khirnov	845020ed89	cljr: use the AVFrame API properly.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Carl Eugen Hoyos	0915b531bc	Rename "AVClass class" as "AVClass component_class". The aix header math.h defines "extern int class()" for C.	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Anton Khirnov	7c8fceef6c	cljr: return a meaningful error code.	12 years ago
Anton Khirnov	df9b956751	lavc: fix decode_frame() third parameter semantics for video decoders It's got_frame, not data size	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Paul B Mahol	efbe162f7d	cljr: use meaningful error code Signed-off-by: Paul B Mahol <onemda@gmail.com>	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
Paul B Mahol	ae2c33b0c2	cosmetics: remove superfluous curly brackets Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	ca6a3448e9	cljrenc: switch to ff_alloc_packet2() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Anton Khirnov	3dffa1b46c	cljr: implement encode2.	13 years ago
Anton Khirnov	177bb4bf50	cljr: set the properties of the coded_frame, not input frame.	13 years ago
Michael Niedermayer	7e5cbb3c2d	cljrdec: improve scaling somewhat Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	a1ca45317d	cljrenc: fix scaling Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B. Mahol	2e7905eee8	cljr: fix buf_size sanity check Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Shitiz Garg	652d81b2c2	cljr: Check if width and height are positive integers Width and height might get passed as 0 and would cause floating point exceptions in decode_frame. Fixes bugzilla #149 Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Shitiz Garg	4af0262f7d	cljr: Check if width or height are positive integers width and height might get passed as 0 and would cause floating point exceptions in decode_frame. Fixes bugzilla #149 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	65c1011404	cljr: remove unused code Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Michael Niedermayer	523da37f4c	cljrenc: 2x2 ordered dither support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	74d9b21340	cljrenc: add AVOption to disable dither Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	43a36ad2ee	cljrenc: Add dither to avoid the banding artifcats caused by the very low number of bits used to represent brightness levels. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	6b60a4c9c9	cljr: K&R cosmetics	13 years ago
Diego Biurrun	1c45c64c9d	cljr: return a more sensible value when encountering invalid headers	13 years ago
Diego Biurrun	163682fab3	cljr: drop unnecessary emms_c() calls without MMX code	13 years ago
Mans Rullgard	bbc10185ee	cljr: remove useless casts Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	baf3b6e594	cljr: group encode/decode parts under single ifdefs This groups the encode/decode parts under single ifdefs and eliminates the encode_init() function as it merely calls common_init(). Also fix whitespace in moved code. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	9a1420bfda	cljr: remove stray semicolon Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Paul B Mahol	ca52bae6ec	cljr: add missing return statement in decode_end() Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Paul B Mahol	e93947b7d8	cljr: add encoder Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Paul B. Mahol	04a5eaa1a5	cljr: release picture at end of decoding Otherwise after transcoding from cljr we get: Found 1 unreleased buffers! Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Paul B. Mahol	fc9489f6ad	cljr: simplify CLJRContext There is no need to have delta, offset and gb in CLJRContext. Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Anton Khirnov	9f51c682ee	lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits. They are used in lavf.	13 years ago
Alex Converse	0c1f5b93d9	cljr: init_get_bits size in bits instead of bytes	13 years ago
Diego Biurrun	fed6c90b68	cosmetics: remove some stray comments from AVCodec declarations	13 years ago
Anton Khirnov	ec6402b7c5	lavc: use designated initialisers for all codecs. It's more readable and less prone to breakage.	13 years ago
Stefano Sabatini	01042d4123	lavc: set defaults in internal codec frames This is required specifically for setting frame->format to -1, otherwise it will be set to 0 = PIX_FMT_YUV420P and code reading the format from the output decoded frame will get misled. In particular fix regressions occurring with the pending vsrc_buffer patch.	14 years ago
Stefano Sabatini	ce5e49b0c2	replace deprecated FF__TYPE symbols with AV_PICTURE_TYPE_	14 years ago

6 Commits (794e15fd54db9cef85a02f21354090d718f81d22)