[PATCH 4/4] Add support to -vfilters_file.

[Stefano Sabatini]

---
 ffplay.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/ffplay.c b/ffplay.c
index 03da896..aedc71c 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -2920,6 +2920,21 @@ static int opt_debug(const char *opt, const char *arg)
     return 0;
 }
 
+static int opt_vfilters_file(const char *opt, const char *arg)
+{
+    int size;
+
+    if (vfilters)
+        av_free(vfilters);
+
+    if (read_file(arg, &vfilters, &size) < 0) {
+        fprintf(stderr, "Cannot read vfilters file '%s'\n", arg);
+        exit(1);
+    }
+
+    return 0;
+}
+
 static int opt_vismv(const char *opt, const char *arg)
 {
     debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
@@ -2973,6 +2988,7 @@ static const OptionDef options[] = {
     { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
 #if CONFIG_AVFILTER
     { "vfilters", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
+    { "vfilters_file", OPT_FUNC2 | HAS_ARG, {(void*)opt_vfilters_file}, "read the video filters from a file", "video_filters_filename" },
 #endif
     { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
     { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
-- 
1.7.0


--Izn7cH1Com+I3R9J--