FFmpeg

Commit Graph

Author	SHA1	Message	Date
Clément Bœsch	6fb2fd895e	lavc: add lavfi metadata support. This commit introduces a new AVPacket side data type: AV_PKT_DATA_STRINGS_METADATA. Its main goal is to provide a way to transmit the metadata from the AVFilterBufferRef up to the AVFrame. This is at the moment "only" useful for lavfi input from libavdevice: lavd/lavfi only outputs packets, and the metadata from the buffer ref kept in its context needs to be transmitted from the packet to the frame by the decoders. The buffer ref can be destroyed at any time (along with the metadata), and a duplication of the AVPacket needs to duplicate the metadata as well, so the choice of using the side data to store them was selected. Making sure lavd/lavfi raises the metadata is useful to allow tools like ffprobe to access the filters metadata (it is at the moment the only way); ffprobe will now automatically show the AVFrame metadata in any customizable output format for users. API users will also be able to access the AVFrame->metadata pointer the same way ffprobe does (av_frame_get_metadata). All the changes are done in this single commit to avoid some memory leaks: for instances, the changes in lavfi/avcodec.c are meant to duplicate the metadata from the buffer ref into the AVFrame. Unless we have an internal way of freeing the AVFrame->metadata automatically, it will leak in most of the user apps. To fix this problem, we introduce AVCodecContext->metadata and link avctx->metadata to the current frame->metadata and free it at each decode frame call (and in the codec closing callback for the last one). But doing this also means to update the way the tiff decoder already handles the AVFrame->metadata (it's the only one decoder with frame metadata at the moment), by making sure it is not trying to free a pointer already freed by the lavc internals. The lavfi/avcodec.c buffer ref code is based on an old Thomas Kühnel work, the rest of the code belongs to the commit author. Signed-off-by: Thomas Kühnel <kuehnelth@googlemail.com> Signed-off-by: Clément Bœsch <ubitux@gmail.com>	12 years ago
Michael Niedermayer	d185c8a79b	tiff: run strlen() after setting the pointer Fixes CID733803 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	b12d92efd6	avoid "0xFF << 24" as it is considered a integer overflow in C99 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	d5c62122a7	Move av_reverse table to libavcodec It is only used in that library.	12 years ago
Michael Niedermayer	4b20b21b8d	tiff: fix leak on error return in doubles2str() Fixes CID733797 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
Michael Niedermayer	c5fdd0696a	tiff: fix "assignment discards qualifiers from pointer target type" warning Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Alex Converse	df6c3f9fb3	tiffdec: Add support for GRAY16LE. Tested with the GraphicsMagick TIFF archive and Libav generated files.	12 years ago
Carl Eugen Hoyos	8e082df0f4	Support decoding of monochrome tiff images without bpp tag.	12 years ago
Michael Niedermayer	17f9626b5d	tiff/doubles2str: check for truncation Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	0196bc6f14	tiff/doubles2str: factor out component_len Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Martin Storsjö	1d9c2dc89a	Don't include common.h from avutil.h Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Paul B Mahol	3071af6cf2	tiff: read more tags of type string Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Paul B Mahol	292850b634	tiff: add smarter checks if there is enough data left Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Paul B Mahol	1ec83d9a9e	tiff: port to bytestream2 Prevents out of array reads. Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Thomas Kühnel	75abfab6c6	lavc/tiff: add GeoTIFF support to the TIFF decoder Work done for SOCIS 2011. See thread: Subject: [libav-devel] [PATCH 2/3] tiff: Add GeoTIFF support to the TIFF decoder Date: Tue, 4 Oct 2011 00:19:52 +0200 Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	13 years ago
Paul B Mahol	8f239412d8	tiffdec: PIX_FMT_GRAY16LE support Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Michael Niedermayer	fefc65675e	tiffdec: check overread for packbits Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Alex Converse	f346b6bbeb	tiffdec: K&R cosmetics	13 years ago
Alex Converse	90a4306007	tiffdec: Add a malloc check and refactor another.	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
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Alex Converse	fd0be63049	tiffdec: Prevent illegal memory access caused by recycled pointers. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Diego Biurrun	324deaa268	Replace AVFrame pointer type punning by proper struct member assignments.	13 years ago
Diego Biurrun	562b6c744a	Remove unnecessary AVFrame pointer casts.	13 years ago
Alex Converse	447363870f	tiff: Prevent overreads in the type_sizes array. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Alex Converse	e32548d133	tiff: Make the TIFF_LONG and TIFF_SHORT types unsigned. TIFF v6.0 (unimplemented) adds signed equivalents.	13 years ago
Carl Eugen Hoyos	f746f37901	Support decoding gray8a tiff images.	13 years ago
Carl Eugen Hoyos	c714cd3bd4	Support 64bit tiff images. Fixes a part of ticket #503. Reviewed-by: Paul B Mahol Reviewed-by: Jean First	13 years ago
Paul B Mahol	98dfdfdd8e	tiffdec: notify user that tile support is missing Signed-off-by: Stefano Sabatini <stefasab@gmail.com>	13 years ago
Carl Eugen Hoyos	714d2f9796	Only expand raw and packed 1bpp tiff horizontally if it is palettised.	13 years ago
Michael Niedermayer	4392b3d11e	tiffdec: hotfix for fate failure. Only use pal8 as output if the file has a palette or more than 2 colors. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Carl Eugen Hoyos	7ee0649f95	Fix decoding some 1bpp tiff files, they are palettized. Fixes ticket #830.	13 years ago
Carl Eugen Hoyos	e767968c6e	Simplify tiff decoder by merging two functions.	13 years ago
Carl Eugen Hoyos	b46fb615c4	tiff.c: Use switch / case instead of if / else where appropriate.	13 years ago
Carl Eugen Hoyos	3b5733bcf9	Set TIFF default grascale palette opaque.	13 years ago
Laurent Aimar	04a845caa7	tiffdec: fix out of bound reads/writes Signed-off-by: Janne Grunau <janne-libav@jannau.net>	13 years ago
Laurent Aimar	5ca5d432e0	Fix out of bound reads/writes in the TIFF decoder. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Carl Eugen Hoyos	ef8756dab2	Support LZW and ZLIB compressed 4bpp tiff samples. Fixes ticket #439 and ticket #440.	13 years ago
Jean First	251345a3fe	cosmetics, remove unused and rename variables for consistency	13 years ago
Jean First	72381b2b47	tiffdec: add RGB48 (16bit) support	13 years ago
Carl Eugen Hoyos	d898ab9090	Fix decoding of 2/4 bpp Tiff samples.	13 years ago
Carl Eugen Hoyos	5f5e37e0fa	Support decoding of 2bpp and 4bpp TIFF images. Based on patches by Kostya and ami_stuff.	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
Diego Biurrun	f6f95d4e49	doxygen: consistently place brief description	14 years ago
Stefano Sabatini	1863a3c7aa	tiff: print log in case of unknown / unsupported tag. Helps debugging. Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Stefano Sabatini	a43458d7eb	tiff: fix linesize for mono-white/black formats. Fix decoding of file Test_1bpp.tif Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Stefano Sabatini	7ca5338b49	tiff: set palette in the context when specified in TIFF_PAL tag Since image initialization was moved after tag parsing, the palette needs to be specified in the context and then copied to the allocated image in init_image(). Fixes a regression with TIFF images that have palette data, trac issue #230, file Test_Flate_8bpp.tif. Signed-off-by: Diego Biurrun <diego@biurrun.de>	14 years ago
Stefano Sabatini	d8297ca443	tiff: fix linesize for mono-white/black formats Fix decoding of file Test_1bpp.tif, fix trac issue #171.	14 years ago

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133 Commits (e8c0b6710cec23a71f7c85b6960f0b334750d346)