FFmpeg

Mirror of https://git.ffmpeg.org/ffmpeg.git https://ffmpeg.org/

Ronald S. Bultje 7a160bca83 Fix index generation in the way that it was supposed to be used. See the discussion in the ML thread "[PATCH] rmdec.c: merge old/new packet reading code". Over time, this code broke somewhat, e.g. seq was never actually written into (and was thus always 1, therefore the seq condition was always true), whereas it was supposed to be set to the sequence number of the video slice in case the video frame is divided over multiple RM packets (slices). The problem of this is that packets other than those containing the beginning of a video frame would be indexed as well. Secondly, flags&2 is supposed to be true for video keyframes and for these audio packets containing the start of a block. For some codecs (e.g. AAC), that is every single packet, whereas for others (e.g. cook), that is the packet containing the first of a series of scrambled packets that are to be descrambled together. Indexing any of the following would lead to incomplete and thus useless frames. Problem here is that flags would be reset to 2 to indicate that the first packet is ready to be returned, and in addition if no data was left to be returned (which is always true for the first packet), then we wouldn't actually write the index entry anyway. All in all, the idea was good and it probably worked at some point, but that is long ago. This patch should at the very least make it likely for this code to be executed again at the right times, i.e. the way it was originally intended to be used. Originally committed as revision 17993 to svn://svn.ffmpeg.org/ffmpeg/trunk		16 years ago
doc	Add an example showing how to create a video from many images.	16 years ago
ffpresets	The default subq value in the x264 CLI is now 6, not 5.	16 years ago
libavcodec	Add cook channel count function, part of multichannel cook	16 years ago
libavdevice	Fix AVFMT_FLAG_NONBLOCK in alsa	16 years ago
libavfilter	Remove old scaler.	16 years ago
libavformat	Fix index generation in the way that it was supposed to be used. See the	16 years ago
libavutil	Remove code that was disabled by the recent major version bump.	16 years ago
libpostproc	Add av_uninit to vbA[1-8], vbB[1-8] variables to work around	16 years ago
libswscale	Make the source buffer operands parametrized in the YSCALEYUV2RGB_YA macro	16 years ago
tests	use utc time for timestamp and do not set it if not specified	16 years ago
tools	patcheck: Replace non-POSIX echo -e with printf.	16 years ago
COPYING.GPL	Rename COPYING to COPYING.LGPL, add COPYING.GPL with the text of the GPLv2.	18 years ago
COPYING.LGPL	Rename COPYING to COPYING.LGPL, add COPYING.GPL with the text of the GPLv2.	18 years ago
CREDITS	it seems I never added myself in there before	16 years ago
Changelog	VQF demuxer	16 years ago
Doxyfile	HAVE_3DNOW --> HAVE_AMD3DNOW	16 years ago
INSTALL	Clarify that we require GNU make 3.81+.	16 years ago
MAINTAINERS	add my gpg key fingerprint	16 years ago
Makefile	Remove 'lib' and 'swscale-error' from list of phony targets.	16 years ago
README	Update information regarding LGPL libswscale.	16 years ago
cmdutils.c	Rename avctx_opts to avcodec_opts.	16 years ago
cmdutils.h	Rename avctx_opts to avcodec_opts.	16 years ago
common.mak	Mark all clean targets as phony.	16 years ago
configure	Force ebp_available for icc.	16 years ago
ffmpeg.c	add loglevel option to set libav* logging level, -v does not set it anymore	16 years ago
ffplay.c	Switch ffplay to new seeking API.	16 years ago
ffserver.c	Bump major version of libavutil due to FIFO fixes.	16 years ago
ffserver.h	Add FFMPEG_ prefix to all multiple inclusion guards.	17 years ago
output_example.c	Make output_example use av_interleaved_write_frame() instead of av_write_frame().	16 years ago
subdir.mak	Remove other shared lib names from linker command line for shared libs	16 years ago
version.sh	Directly read the version number from a VERSION file; useful for releases.	16 years ago

README

FFmpeg README
-------------

1) Documentation
----------------

* Read the documentation in the doc/ directory.

2) Licensing
------------

* Read the file COPYING.LGPL. FFmpeg and the associated libraries EXCEPT
  for libpostproc are licensed under the GNU Lesser General Public License.

* libpostproc is distributed under the GNU General Public License, see the
  file COPYING.GPL for details. Its compilation and use in FFmpeg is optional.

* libswscale contains some optional processor-specific optimizations that are
  distributed under the GNU General Public License.

* The files libavcodec/x86/idct_mmx.c, libavcodec/x86/h264_deblock_sse2.asm
  and libavcodec/x86/h264_idct_sse2.asm are distributed under the GNU General
  Public License. They are strictly optimizations and their use is optional.

* The file libavcodec/ac3dec.c is distributed under the GNU General Public
  License.  In order for (E-)AC-3 decoding to work you need to enable GPL
  components.

* The file libavdevice/x11grab.c is distributed under the GNU General
  Public License. X11 grabbing is optional.

* The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
  are taken from libjpeg, see the top of the files for licensing details.

* The file libavcodec/fdctref.c is copyrighted by the MPEG Software Simulation
  Group with all rights reserved. It is only used to create a DCT test program
  and not compiled into libavcodec.

* Some external libraries are under GPL. If you wish to use them with FFmpeg,
  you have to configure FFmpeg as GPL as well.