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wm4 9d0aa058c9 avio: fix potential crashes when combining ffio_ensure_seekback + crc
Calling ffio_ensure_seekback() if ffio_init_checksum() has been called
on the same context can lead to out of bounds memory accesses and
crashes. The reason is that ffio_ensure_seekback() does not update
checksum_ptr after reallocating the buffer, resulting in a dangling
pointer.

This effectively fixes potential crashes when opening mp3 files.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dc87758775)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-08-20 14:38:25 +02:00
compat
doc Update for 2.4.10 2015-06-02 01:12:40 +02:00
libavcodec h264: er: Copy from the previous reference only if compatible 2015-08-20 14:29:12 +02:00
libavdevice avdevice/lavfi: do not rescale AV_NOPTS_VALUE in lavfi_read_packet() 2015-08-20 14:29:11 +02:00
libavfilter avfilter/x86/vf_hqdn3d: Fix register types 2015-06-19 11:24:32 +02:00
libavformat avio: fix potential crashes when combining ffio_ensure_seekback + crc 2015-08-20 14:38:25 +02:00
libavresample
libavutil arm: only enable setend on ARMv6 2015-08-20 14:29:12 +02:00
libpostproc
libswresample swresample/swresample: Cleanup on init failure. 2015-08-20 14:29:11 +02:00
libswscale libswscale/x86/hscale_fast_bilinear_simd.c: Include BX in the clobber list on x86_64, because it isn't implicitly included when PIC is on. 2015-06-01 23:25:20 +02:00
presets
tests
tools tools/graph2dot: use larger data types than int for array/string sizes 2015-06-01 23:25:20 +02:00
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Changelog Update for 2.4.10 2015-06-02 01:12:40 +02:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: Remove myself as leader 2015-07-31 18:35:31 +02:00
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README.md
RELEASE Update for 2.4.10 2015-06-02 01:12:40 +02:00
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arch.mak
cmdutils.c
cmdutils.h
cmdutils_common_opts.h
cmdutils_opencl.c OpenCL: Avoid potential buffer overflow in cmdutils_opencl.c 2015-06-01 23:25:21 +02:00
common.mak
configure OS/2:Makedef.cmd cleanup 2015-06-01 23:25:21 +02:00
ffmpeg.c ffmpeg: remove incorrect network deinit 2015-06-01 23:25:21 +02:00
ffmpeg.h
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c ffmpeg_opt: Check for localtime() failure 2015-08-20 14:29:12 +02:00
ffmpeg_vda.c
ffmpeg_vdpau.c
ffplay.c
ffprobe.c
ffserver.c
library.mak
version.sh

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analisys tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Conding examples are available in the doc/example directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.