back to mjpeg (revert 2cb511e and 3f157f9) for now

There is anecdotal evidence that using mpeg4 as codec leads to issues
(xjadeo indexes and gets stuck at 99%, likely in libavcodec).

The main motivation for using mpeg4 is/was windows/VFAT 2GB file limit
and improved video quality.  This will have to be revisited.

1 files changed, 8 insertions, 7 deletions

diff --git a/gtk2_ardour/transcode_ffmpeg.cc b/gtk2_ardour/transcode_ffmpeg.cc
index 949565d22b..b756b02618 100644
--- a/gtk2_ardour/transcode_ffmpeg.cc
+++ b/gtk2_ardour/transcode_ffmpeg.cc
@@ -479,7 +479,7 @@ TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh,
 	if (bitrate < 10)  bitrate = 10;
 	if (bitrate > 1000) bitrate = 1000;
 
-	argp=(char**) calloc(15,sizeof(char*));
+	argp=(char**) calloc(16,sizeof(char*));
 	argp[0] = strdup(ffmpeg_exe.c_str());
 	argp[1] = strdup("-i");
 	argp[2] = strdup(infile.c_str());
@@ -489,17 +489,18 @@ TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh,
 	argp[6] = (char*) calloc(10,sizeof(char)); snprintf(argp[6], 10, "%ix%i", width, height);
 	argp[7] = strdup("-y");
 	argp[8] = strdup("-vcodec");
-	argp[9] = strdup("mpeg4");
+	argp[9] = strdup("mjpeg");
 	argp[10] = strdup("-an");
-	argp[11] = strdup("-keyint_min");
-	argp[12] = strdup("10");
-	argp[13] = strdup(outfile.c_str());
-	argp[14] = (char *)0;
+	argp[11] = strdup("-intra");
+	argp[12] = strdup("-g");
+	argp[13] = strdup("1");
+	argp[14] = strdup(outfile.c_str());
+	argp[15] = (char *)0;
 	/* Note: these are free()d in ~SystemExec */
 #if 1 /* DEBUG */
 	if (debug_enable) { /* tentative debug mode */
 	printf("TRANSCODE VIDEO:\n");
-	for (int i=0; i< 14; ++i) {
+	for (int i=0; i< 15; ++i) {
 	  printf("%s ", argp[i]);
 	}
 	printf("\n");