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Note that the motion information includes subpel motion information
This was likely forgotten in 56bdf61baa.
Tested:
```
$ make examples -j
...
$ doc/examples/extract_mvs in.264 | head -40 | \
csvcut -C framenum,source,flags |csvlook
| blockw | blockh | srcx | srcy | dstx | dsty | motion_x | motion_y | motion_scale |
| ------ | ------ | ----- | ---- | ----- | ---- | -------- | -------- | ------------ |
| 16 | 16 | 20 | 26 | 8 | 8 | 49 | 72 | 4 |
| 16 | 16 | 152 | 15 | 136 | 8 | 65 | 28 | 4 |
| 16 | 8 | 360 | 3 | 360 | 4 | 1 | -6 | 4 |
| 16 | 8 | 360 | 13 | 360 | 12 | -1 | 4 | 4 |
| 16 | 16 | 440 | 10 | 440 | 8 | 3 | 10 | 4 |
| 8 | 16 | 829 | 7 | 836 | 8 | -31 | -6 | 4 |
| 8 | 16 | 844 | 7 | 844 | 8 | -1 | -4 | 4 |
| 16 | 16 | 1,004 | 14 | 1,048 | 8 | -177 | 24 | 4 |
| 16 | 16 | 1,096 | 8 | 1,096 | 8 | -1 | 0 | 4 |
| 16 | 8 | 1,417 | 24 | 1,416 | 4 | 7 | 82 | 4 |
| 16 | 8 | 1,416 | 13 | 1,416 | 12 | 0 | 6 | 4 |
| 16 | 8 | 87 | 20 | 88 | 20 | -7 | 0 | 4 |
| 16 | 8 | 99 | 44 | 88 | 28 | 45 | 66 | 4 |
...
```
Also:
```
$ make fate -j
...
```
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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 analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-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
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.