Revision: 2161
http://synfig.svn.sourceforge.net/synfig/?rev=2161&view=rev
Author: pabs3
Date: 2008-11-06 10:36:52 +0000 (Thu, 06 Nov 2008)
Log Message:
-----------
Speed up reverse seeking in the ffmpeg importer by using the ffmpeg -ss option
to tell ffmpeg to seek to the right frame.
Modified Paths:
--------------
synfig-core/trunk/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp
Modified: synfig-core/trunk/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp
===================================================================
--- synfig-core/trunk/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp 2008-11-06
09:07:28 UTC (rev 2160)
+++ synfig-core/trunk/src/modules/mod_ffmpeg/mptr_ffmpeg.cpp 2008-11-06
10:36:52 UTC (rev 2161)
@@ -102,7 +102,7 @@
string command;
- command=strprintf("ffmpeg -i \"%s\" -an -f image2pipe -vcodec
ppm -\n",filename.c_str());
+ command=strprintf("ffmpeg -ss 00:00:00.%d -i \"%s\" -an -f
image2pipe -vcodec ppm -\n",frame,filename.c_str());
file=popen(command.c_str(),POPEN_BINARY_READ_TYPE);
@@ -133,7 +133,8 @@
}
// Close the unneeded pipein
close(p[1]);
- execlp("ffmpeg", "ffmpeg", "-i", filename.c_str(),
"-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char *)NULL);
+ string time = strprintf("00:00:00.%d",frame);
+ execlp("ffmpeg", "ffmpeg", "-ss", time.c_str(), "-i",
filename.c_str(), "-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char
*)NULL);
// We should never reach here unless the exec failed
cerr<<"Unable to open pipe to ffmpeg"<<endl;
_exit(1);
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