Hi
Vitor wrote:
Vitor wrote:
Víctor Paesa wrote:
On Dec 4, 2007 4:24 AM, jgh lrhg <[EMAIL PROTECTED]> wrote:
Hi all!
I was built successed ffmpeg with vsrc_ppm but i don't know how to add logo
to video using vsrc_ppm.
Anyone tell me agrs to add logo or watermark to video using vsrc_ppm.
Thanks!
It should be a command alike to this one:
ffmpeg -i input.avi -vfilters graph_file=ppm.desc output.avi
[...]
But it did not work as expected, as the output.avi has only two frames:
[...]
Bobby, Vitor, could you please shed some ligth on this result?
The problem is with my ffmpeg patch. ffplay works fine. I'll look into
it soon...
Just an update on this: the problem don't seems to be in the FFmpeg
patch but something to do with miscalculating the timestamp of the
filtered frame (FFplay is just less sensible to the problem)...
Looks like the problem was in the overlay filter. Bobby, can you give a
look at this patch?
-Vitor
diff -u libavfilter2/vf_overlay.c libavfilter/vf_overlay.c
--- libavfilter2/vf_overlay.c 2007-11-06 20:52:43.000000000 +0100
+++ libavfilter/vf_overlay.c 2007-12-20 13:59:45.000000000 +0100
@@ -141,7 +141,7 @@
if(!over->pics[1][0]) return 1;
if(over->pics[0][0]->pts == over->pics[1][0]->pts) return 2;
- return !!(over->pics[0][0]->pts < over->pics[1][0]->pts);
+ return (over->pics[0][0]->pts > over->pics[1][0]->pts);
}
static void copy_image(AVFilterPicRef *dst, int x, int y,
diff -u libavfilter2/vsrc_ppm.c libavfilter/vsrc_ppm.c
--- libavfilter2/vsrc_ppm.c 2007-12-20 15:09:44.000000000 +0100
+++ libavfilter/vsrc_ppm.c 2007-12-20 15:11:27.000000000 +0100
@@ -85,7 +85,7 @@
fclose(ppm->in);
ppm->in = NULL;
- } else ppm->pic->pts += 30;
+ } else ppm->pic->pts += 40000;
out = avfilter_ref_pic(ppm->pic, ~AV_PERM_WRITE);
avfilter_start_frame(link, out);
_______________________________________________
FFmpeg-soc mailing list
[email protected]
http://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
