iowatcher: iowatcher: specify ffmpeg codec
Add -C option to specify ffmped video code to use.
Allow ffmpeg video codec to be specified on the command line. "libx264" is
default.
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
diff --git a/iowatcher/main.c b/iowatcher/main.c
index 6e392f2..41b2828 100644
--- a/iowatcher/main.c
+++ b/iowatcher/main.c
@@ -143,6 +143,7 @@
static char *blktrace_outfile = "trace";
static char *blktrace_dest_dir = ".";
static char *program_to_run = NULL;
+static char *ffmpeg_codec = "libx264";
static void alloc_mpstat_gld(struct trace_file *tf)
{
@@ -873,7 +874,8 @@
{
fprintf(stderr, "Creating movie %s with ffmpeg\n", movie_dir);
snprintf(line, line_len, "ffmpeg -r 20 -y -i %s/%%10d-%s.svg.png -b:v 250k "
- "-vcodec libx264 %s", movie_dir, output_filename, output_filename);
+ "-vcodec %s %s", movie_dir, output_filename, ffmpeg_codec,
+ output_filename);
system(line);
}
@@ -1148,7 +1150,7 @@
HELP_LONG_OPT = 1,
};
-char *option_string = "T:t:o:l:r:O:N:d:D:p:m::h:w:c:x:y:a:PK";
+char *option_string = "T:t:o:l:r:O:N:d:D:p:m::h:w:c:x:y:a:C:PK";
static struct option long_options[] = {
{"columns", required_argument, 0, 'c'},
{"title", required_argument, 0, 'T'},
@@ -1162,6 +1164,7 @@
{"blktrace-destination", required_argument, 0, 'D'},
{"prog", required_argument, 0, 'p'},
{"movie", optional_argument, 0, 'm'},
+ {"codec", optional_argument, 0, 'C'},
{"keep-movie-svgs", no_argument, 0, 'K'},
{"width", required_argument, 0, 'w'},
{"height", required_argument, 0, 'h'},
@@ -1184,6 +1187,7 @@
"\t-p (--prog): program to run while blktrace is run\n"
"\t-K (--keep-movie-svgs keep svgs generated for movie mode\n"
"\t-m (--movie [=spindle|rect]): create IO animations\n"
+ "\t-C (--codec): ffmpeg codec. Use ffmpeg -codecs to list\n"
"\t-r (--rolling): number of seconds in the rolling averge\n"
"\t-T (--title): graph title\n"
"\t-N (--no-graph): skip a single graph (io, tput, latency, queue_depth, \n"
@@ -1323,6 +1327,9 @@
fprintf(stderr, "Using movie style: %s\n",
movie_styles[movie_style]);
break;
+ case 'C':
+ ffmpeg_codec = strdup(optarg);
+ break;
case 'h':
opt_graph_height = atoi(optarg);
break;
