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Stefano Sabatini aade9884e9 lavfi/apad: fix logic when whole_len or pad_len options are specified
In particular, allow pad_len and whole_len to have value set to 0, which
means that no padding will be added. Previously a value set to 0 meant
that that the filter had to pad forever.

The new semantics is clearer, also simplifies scripting since the option
value might be automatically computed, so that no checks need to be done
in case it is 0.

The old semantics was never documented and the logic was broken (the
filter was always adding samples indefinitely), so this should not break
backward compatibility.
2014-08-21 16:59:07 +02:00
compat Merge commit 'f929ab0569' 2014-08-15 21:00:50 +02:00
doc doc/APIChanges: fill 2 hashes from my recent API additions 2014-08-21 12:36:28 +02:00
libavcodec imc: reject files with unfathomable sampling rates 2014-08-21 14:20:46 +02:00
libavdevice Merge commit '8bc52dbd9d' 2014-08-19 18:33:46 +02:00
libavfilter lavfi/apad: fix logic when whole_len or pad_len options are specified 2014-08-21 16:59:07 +02:00
libavformat avformat/asfdec: Check av_new_packet()s return code 2014-08-20 18:32:59 +02:00
libavresample Merge commit '11db644a8e' 2014-08-17 21:43:06 +02:00
libavutil avutil/motion_vector.h: fix coordinate types 2014-08-21 12:27:34 +02:00
libpostproc Drop remaining unneeded != NULL 2014-08-15 22:47:45 +02:00
libswresample swresample: Add AVFrame based API 2014-08-16 20:39:37 +02:00
libswscale lsws: duplicate ff_log2_tab 2014-08-12 20:52:21 +02:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests fate: add test for old (v1) huffyuv and rgba 2014-08-21 02:20:07 +02:00
tools Merge commit '4b1f5e5090' 2014-08-15 21:26:12 +02:00
.gitignore avcodec: export motion vectors in frame side data on demand 2014-08-18 14:13:57 +02:00
arch.mak Merge commit '8675bcb0ad' 2014-04-07 02:15:18 +02:00
Changelog Merge commit '481a366749' 2014-08-14 00:41:21 +02:00
cmdutils.c Drop remaining unneeded != NULL 2014-08-15 22:47:45 +02:00
cmdutils.h ffmpeg: add -devices param 2014-05-28 03:52:50 +02:00
cmdutils_common_opts.h ffmpeg: add -devices param 2014-05-28 03:52:50 +02:00
cmdutils_opencl.c cmdutils_opencl: Use av_malloc_array() 2014-07-01 03:49:36 +02:00
common.mak Merge commit 'afe1762654' 2014-05-20 03:33:30 +02:00
configure avcodec: export motion vectors in frame side data on demand 2014-08-18 14:13:57 +02:00
COPYING.GPLv2
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
ffmpeg.c Drop remaining unneeded != NULL 2014-08-15 22:47:45 +02:00
ffmpeg.h ffmpeg: remove 32 channel limit from audio_channels_map 2014-08-15 05:38:47 +02:00
ffmpeg_dxva2.c Merge commit 'a7c5fddac8' 2014-04-30 00:46:38 +02:00
ffmpeg_filter.c ffmpeg_filter: refuse to configure input without a decoder. 2014-07-30 14:40:45 +02:00
ffmpeg_opt.c Use new av_dict_set_int helper function. 2014-08-16 14:31:41 +02:00
ffmpeg_vda.c Merge commit '1839fafa95' 2014-05-12 02:44:28 +02:00
ffmpeg_vdpau.c Merge commit '7671dd7cd7' 2013-11-23 14:46:48 +01:00
ffplay.c Use new av_dict_set_int helper function. 2014-08-16 14:31:41 +02:00
ffprobe.c ffprobe: add -show_data_hash option. 2014-08-17 11:30:55 +02:00
ffserver.c ffserver: warn if config uses a system port 2014-08-17 22:51:45 -04:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak Merge commit 'bb0babd705' 2014-07-22 02:45:45 +02:00
LICENSE.md lavc/flacenc: add sse4 version of the 16-bit lpc encoder 2014-08-13 01:14:47 +02:00
MAINTAINERS avfilter: ported lenscorrection filter from frei0r 2014-08-12 03:33:30 +02:00
Makefile Merge commit 'd45ebd4876' 2014-07-22 03:06:43 +02:00
README.md Merge commit '96ce6d6f11' 2014-08-17 21:41:55 +02:00
RELEASE Prepare for 11_beta1 Release 2014-08-17 22:18:19 -04:00
RELEASE_NOTES reset and complete RELEASE_NOTES for the next version 2014-08-13 21:03:55 +02:00
version.sh version.sh: Print versions based on the last git tag for release branches 2014-07-28 15:44:59 +02:00

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.