[MPlayer-dev-eng] [PATCH] New VO drivers.

[D Richard Felker III]

On Tue, Sep 14, 2004 at 01:12:30AM +0200, Ivo wrote:
> Hi all,
> 
> I have written two new VO drivers, namely vo_pnm and vo_md5sum. They can, 
> hopefully, replace vo_pgm and vo_md5. For the latter I used a slightly 
> different name, so they can all co-exist for a while if necessary. Since 
> it's quite a big patch, I was a little hesitant to just commit it all. Let 
> me explain why I wrote this:
> 
> Old sitiuation:
> 
> vo_pgm - outputs raw PGMYUV files in the current directory.
> vo_md5 - uses vo_pgm to write a PGMYUV file and just assumes md5sum is 
> installed on the system and uses that to calculate the MD5 sum. After that, 
> it deletes the .pgm file and outputs all sums to a file. It's very slow.
> 
> New situation:
> 
> vo_pnm - can output PPM, PGM and PGMYUV files in both raw and ASCII mode. It 
> also has the multiple subdirectory framework I added to vo_jpeg.
> vo_md5sum - can calculate the MD5 sum of RGB24 or YV12 frames and does not 
> depend on either another vo_* driver or another utility being installed. It 
> outputs all the sums to a file.
> 
> I have not updated the manual page yet, but I'll do that after this patch 
> gets through. And if it doesn't get through, there's no need to :-)
> 
> Quick manual:
> 
> -vo pnm:suboptions :
> 
> 	ppm		- write PPM files (default)
> 	pgm		- write PGM files
> 	pgmyuv	- write PGMYUV files
> 	raw		- write raw PNM files
> 	ascii		- write ASCII PNM files
> 	outdir=<value>		- output directory
> 	subdirs=<value>	- if specified, subdirectories are created with this prefix
> 	maxfiles=<value>	- maximum number of files per subdir.
> 
> -vo md5sum:suboptions :
> 
> 	rgb		- calculate sums on RGB24 frames
> 	yuv		- calculate sums on YV12 frames

i'm mildly against rgb/yuv options. vo_md5sum should just use whatever
format is passed into it. the user can control this with vf_format
and/or vf_scale if needed.

rich