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H264 Analysis Tools: Difference between revisions
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[trace_headers @ 0x7f81a8416d00] Packet: 589 bytes, no pts, dts 207998, duration 40000. | [trace_headers @ 0x7f81a8416d00] Packet: 589 bytes, no pts, dts 207998, duration 40000. | ||
</pre> | </pre> | ||
== Display Motion Vectors == | |||
The following commands will help you visualize the motion vectors on top of the original video. | |||
To display the motion vectors on a newly opened a window: | |||
<pre> | |||
ffplay -flags2 +export_mvs file.h264 -vf codecview=mv=pf+bf+bb | |||
</pre> | |||
To save a copy of the video with motion vectors overlaid: | |||
<pre> | |||
ffmpeg -flags2 +export_mvs -I file.h264 -vf codecview=mv=pf+bf+bb output.mp4 | |||
</pre> | |||
Sample output: | |||
[[File:Mv.png|800px|frameless|center|Sample output of the motion vector visualization]] | |||
[[File:Plotframes.png|800px|frameless|center|Sample output of the plotframes command.]] | |||