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FFmpeg/doc/examples
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Chema Gonzalez 7adf7502b8
doc/examples/extract_mvs: add motion information 
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>
2022-09-23 22:42:19 +02:00
..
.gitignore
avio_list_dir.c
avio_reading.c
decode_audio.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
decode_video.c examples/decode_video: flush parser to fix missing frame 2022-04-22 11:26:51 +08:00
demuxing_decoding.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
encode_audio.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
encode_video.c doc/examples/encode_video: add explanations in comments. 2021-08-20 17:05:10 +02:00
extract_mvs.c doc/examples/extract_mvs: add motion information 2022-09-23 22:42:19 +02:00
filter_audio.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
filtering_audio.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
filtering_video.c examples/filtering_video: Don't use stack packet 2021-10-03 20:50:49 +02:00
http_multiclient.c
hw_decode.c examples/hw_decode: Don't use stack packet 2021-10-03 20:50:49 +02:00
Makefile
Makefile.example
metadata.c doc/examples/metadata: Constify values from av_dict_get() 2021-11-18 19:18:01 +01:00
muxing.c doc/examples/muxing: Remove outdated comment 2022-03-25 19:22:55 +01:00
qsvdec.c examples/qsvdec: Don't use stack packet 2021-10-03 20:50:50 +02:00
README
remuxing.c examples/remuxing: Fix use of uninitialized value 2021-10-07 11:59:31 +02:00
resampling_audio.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
scaling_video.c
transcode_aac.c doc/examples/transcode_aac: Bump date 2022-05-02 15:01:15 +05:30
transcoding.c doc/examples: convert to new channel layout-API 2022-03-15 09:42:47 -03:00
vaapi_encode.c avcodec/codec, allcodecs: Constify the AVCodec API 2021-04-27 10:43:14 -03:00
vaapi_transcode.c avformat/avformat, utils: Make av_find_best_stream const-correct 2021-04-27 10:43:14 -03:00

README 

FFmpeg examples README
----------------------

Both following use cases rely on pkg-config and make, thus make sure
that you have them installed and working on your system.


Method 1: build the installed examples in a generic read/write user directory

Copy to a read/write user directory and just use "make", it will link
to the libraries on your system, assuming the PKG_CONFIG_PATH is
correctly configured.

Method 2: build the examples in-tree

Assuming you are in the source FFmpeg checkout directory, you need to build
FFmpeg (no need to make install in any prefix). Then just run "make examples".
This will build the examples using the FFmpeg build system. You can clean those
examples using "make examplesclean"

If you want to try the dedicated Makefile examples (to emulate the first
method), go into doc/examples and run a command such as
PKG_CONFIG_PATH=pc-uninstalled make.