The ffmpeg filter pipeline assigns a 'PTS' to each frame, frame by frame. Is
*that* 'PTS' an int64_t?
Things I have found.
https://ffmpeg.org/ffmpeg-filters.html#fps-1
"...trim any frames with a negative PTS."
That implies that PTS can be negative (ergo, is a signed integer).
http://svn.ffmpeg.org/doxygen/1.0/structAVFrame.html
Is AVFrame the structure of frames in the filter pipeline? If so, then
"int64_t pts
" presentation timestamp in time_base units (time when frame should be shown to user) If
"AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed."
appears to answer my question, unless it's a different 'frame'...
...What exactly is 'AVFrame'?
http://svn.ffmpeg.org/doxygen/1.0/avformat_8h-source.html
"00320 typedef struct AVFrac {
"00321 int64_t val, num, den;
"00322 } AVFrac;"
http://svn.ffmpeg.org/doxygen/1.0/structAVFrac.html#_details
"The exact value of the fractional number is: 'val + num / den'."
That appears to be a definition of something called "PTS" but seems to not be what's assigned to a
frame in the filter pipeline.
The label (name) of what is actually assigned to frames in the filter pipeline as 'PTS' is unknown
to me.
Thanks for the guidance,
Mark.
--
In U.S. History: The House Un-American Activities Committee was a committee of the House of
Representatives that engaged in un-American activities.
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
