|-v num||Set verbosity level. (default: 0)|
|-h||Print a usage summary and exit.|
|Set the interlacing mode. Top field first (t), bottom field first (b) or progressive/none (p). (default: t)|
|-a sar||Set the sample aspect ratio. (default: 10:11)|
|-r frame rate|
|Set the frame rate. (default: 30000:1001)|
mpeg2dec -s -o pgmpipe file.mpg | pgmtoy4m -a 10:11 -r 24000:1001 -i b | yuvplay
mpeg2dec -s -o pgm file.mpg cat *.pgm | pgmtoy4m -r 30000:1001 -i t | yuvplay
This program is specifically designed to work with the output of mpeg2dec and is NOT a general PGM (NetPBM) tool!
From the introduction in the source file:
* Note: mpeg2dec uses a variation of the PGM format - theyre really not * "Grey Maps" but rather a catenation of the 420P data (commonly called * "YUV"). The type is P5 ("raw") and the number of rows is really * the total of the Y, Cb and Cr heights. The Cb and Cr data is "joined" * together. After the Y rows you have 1 row of Cb and 1 row of Cr per * "row" of PGM data.
* NOTE: You MAY need to know the field order (top/bottom field first), * sample aspect ratio and frame rate because the PGM format makes * none of that information available!
This manpage was written by Steven Schultz (sms at 2bsd dot com).
Possible but none known at the present time.
|y4mutils||PGMTOY4M (1)||16 December 2003|