FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	718044dc19	avutil/pixdesc: Add av_write_image_line2(), av_read_image_line2() This is needed because of 32bit float formats (which are difficult to store in 16bits) This also fixes undefined behavior found by fate Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Marton Balint	56b081da57	avutil/pixdesc: add AV_PIX_FMT_FLAG_ALPHA to AV_PIX_FMT_PAL8 Signed-off-by: Marton Balint <cus@passwd.hu>	7 years ago
wm4	d6fc031caf	avutil/pixdesc: deprecate AV_PIX_FMT_FLAG_PSEUDOPAL PSEUDOPAL pixel formats are not paletted, but carried a palette with the intention of allowing code to treat unpaletted formats as paletted. The palette simply mapped the byte values to the resulting RGB values, making it some sort of LUT for RGB conversion. It was used for 1 byte formats only: RGB4_BYTE, BGR4_BYTE, RGB8, BGR8, GRAY8. The first 4 are awfully obscure, used only by some ancient bitmap formats. The last one, GRAY8, is more common, but its treatment is grossly incorrect. It considers full range GRAY8 only, so GRAY8 coming from typical Y video planes was not mapped to the correct RGB values. This cannot be fixed, because AVFrame.color_range can be freely changed at runtime, and there is nothing to ensure the pseudo palette is updated. Also, nothing actually used the PSEUDOPAL palette data, except xwdenc (trivially changed in the previous commit). All other code had to treat it as a special case, just to ignore or to propagate palette data. In conclusion, this was just a very strange old mechnaism that has no real justification to exist anymore (although it may have been nice and useful in the past). Now it's an artifact that makes the API harder to use: API users who allocate their own pixel data have to be aware that they need to allocate the palette, or FFmpeg will crash on them in _some_ situations. On top of this, there was no API to allocate the pseuo palette outside of av_frame_get_buffer(). This patch not only deprecates AV_PIX_FMT_FLAG_PSEUDOPAL, but also makes the pseudo palette optional. Nothing accesses it anymore, though if it's set, it's propagated. It's still allocated and initialized for compatibility with API users that rely on this feature. But new API users do not need to allocate it. This was an explicit goal of this patch. Most changes replace AV_PIX_FMT_FLAG_PSEUDOPAL with FF_PSEUDOPAL. I first tried #ifdefing all code, but it was a mess. The FF_PSEUDOPAL macro reduces the mess, and still allows defining FF_API_PSEUDOPAL to 0. Passes FATE with FF_API_PSEUDOPAL enabled and disabled. In addition, FATE passes with FF_API_PSEUDOPAL set to 1, but with allocation functions manually changed to not allocating a palette.	7 years ago
Martin Vignali	bb3d62874e	avutil/pixdesc: remove reference to avcodec_get_chroma_sub_sample Don't recommend to use deprecated functions. Signed-off-by: James Almer <jamrial@gmail.com>	7 years ago
Vittorio Giovara	6f15f1cdc8	pixdesc: Add API to map color property names to enum values Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	7 years ago
Vittorio Giovara	2b50847e0f	pixdesc: Add API to map color property names to enum values Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	7 years ago
Vittorio Giovara	1460408703	Add single precision planar RGB pixel formats Add a pixel format flag to identify this family. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	7 years ago
Clément Bœsch	9c2436e1e7	lavu: add AV_PIX_FMT_FLAG_BAYER	8 years ago
Timothy Gu	bdcd586c0d	pixdesc: Order function prototypes semantically	8 years ago
Vittorio Giovara	6695f178a5	pixdesc: Use AV_CEIL_RSHIFT in documentation	9 years ago
Anton Khirnov	d336bfcf69	pixdesc: fix and extend doxy for av_pix_fmt_get_chroma_sub_sample() The parameters in the docs are currently swapped.	9 years ago
Luca Barbato	7b02cb29d9	pixdesc: Document the component order	9 years ago
Vittorio Giovara	2268db2cd0	lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields The new fields can be accessed directly and are more intelligible. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	6b3ef7f080	lavu: Remove bit packing from AVComponentDescriptor There is no practical benefit in having this structure elements bit packed given the size of the structure and its usage. Change types from uint16_t (packed) to plain int in order to simplify modifying the structure and accessing its fields. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
wm4	b8b5d82744	lavu: extend size of the AVPixFmtDescriptor.flags field Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	2f8cbbc962	lavu: Drop deprecated external access to AVPixFmtDescriptor table Deprecated in 10/2012.	9 years ago
Vittorio Giovara	183db02a51	lavu: Drop deprecated old_pix_fmt.h and related code Deprecated in 10/2012.	9 years ago
Peter Cordes	4da3a14f3c	pixelutils: indent comments in pixdesc.h to be clearer Signed-off-by: Peter Cordes <peter@cordes.ca>	10 years ago
wm4	c247fc63e4	pixdesc: clarify AV_PIX_FMT_FLAG_ALPHA doxygen Also make clear that PAL8 can have alpha. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
wm4	3e18dc235e	avutil: move internal function out of public header Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	1296dc6025	avutil/pixdesc: rewrite AV_PIX_FMT_FLAG_PSEUDOPAL documentation It seems many people do not understand its current documentation Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Vittorio Giovara	5a419b2dd1	pixdesc: return color properties names	10 years ago
Luca Barbato	d2962e9f89	pixdesc: Support pixelformat aliases Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Luca Barbato	b2e059a1ff	pixdesc: K&R formatting cosmetics Also change some comments to multiline. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Lou Logan	88f2586adb	fix various typos Signed-off-by: Lou Logan <lou@lrcd.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	617e866e25	Move av_find_best_pix_fmt_of_2() from avcodec to avutil This avoids a dependancy of libavfilter on libavcodec See Ticket 3592 Fixes Ticket2784 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	5ce04c14dd	Use correct Doxygen syntax	11 years ago
Thilo Borgmann	f18ccb529f	Fix wrong use of "an" in some comments.	11 years ago
Diego Biurrun	bf4b0ed1d5	Add missing deprecation attributes	11 years ago
Anton Khirnov	e6c4ac7b5f	pixdesc: rename PIX_FMT_* flags to AV_PIX_FMT_FLAG_*	12 years ago
Kieran Kunhya	ede75ebc9b	Clarify output of av_get_bits_per_pixel Signed-off-by: Anton Khirnov <anton@khirnov.net>	12 years ago
Janne Grunau	74652af821	pixdesc: add function to return pixel format with swapped endiannes	12 years ago
Michael Niedermayer	20e99a9c10	avutil/pixdesc: support for self-checking the descriptors Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	2c328a9079	pixdesc: add a function for counting planes in a pixel format.	12 years ago
Clément Bœsch	6abb554fd6	lavc,lavu: fix two doxy mixup between h/v chroma shift.	12 years ago
Michael Niedermayer	649d8bd8a5	pixdesc: add av_get_padded_bits_per_pixel() This will be needed to allow removing the PixFmtInfo table Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Luca Barbato	cbe5a60c9d	pixdesc: add PIX_FMT_ALPHA flag	12 years ago
Michael Niedermayer	d4e74d5d6d	Remove deprecation of avcodec_get_chroma_sub_sample. Add explanations what the difference between the 2 functions are and when either should be used. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Luca Barbato	c1a02e884a	pixdesc: add av_pix_fmt_get_chroma_sub_sample Deprecate avcodec_get_chroma_sub_sample.	12 years ago
Anton Khirnov	d2fcb356ca	pixdesc: add functions for accessing pixel format descriptors. Make av_pix_fmt_descriptors table static on next major bump. Making the table public is dangerous, since the caller has no way to know how large it actually is. It also prevents adding new fields to AVPixFmtDescriptor without a major bump.	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Michael Niedermayer	c496224374	pixdesc: fix project reference in comment Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Nicolas George	38c3b68e3a	pixdesc: put components always in the same order.	13 years ago
Anton Khirnov	38d5533228	pixdesc: mark pseudopaletted formats with a special flag. This makes it possible to dintinguish them from PAL8. Fixes an invalid write in avpicture_layout().	13 years ago
Ronald S. Bultje	6b0768e202	Clean up swscale pixfmt macros using av_pix_fmt_descriptors[].	13 years ago
Stefano Sabatini	263f57c6d7	pixdesc: remove duplicated header inclusion	14 years ago
Stefano Sabatini	e71f26086a	lavu: add av_get_pix_fmt_name() convenience function Also deprecate avcodec_get_pix_fmt_name() in its favor.	14 years ago
Stefano Sabatini	8f653e28f5	lavu: add av_get_pix_fmt_name() convenience function Also deprecate avcodec_get_pix_fmt_name() in its favor. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Stefano Sabatini	bb4afa13dd	Deprecate avcodec_pix_fmt_string() in favor of av_get_pix_fmt_string(), added to libavutil/pixdesc.h. Originally committed as revision 25879 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago

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84 Commits (26f4ee37f7ce0c04668a3ff38eff31f65e0618be)