Hi!
This user mistake affects many people, attached patch fixes ticket #4184.
Please comment, Carl Eugen
From cb10736ba113a7791816a4db2478eb25f148100f Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffm...@gmail.com>
Date: Mon, 14 Jan 2019 13:34:22 +0100
Subject: [PATCH] ffmpeg_opt: Print a warning if more than one -vf/-af option
was specified.
Fixes ticket #4184.
---
fftools/ffmpeg_opt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index a99e762..b5dfd71 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1681,6 +1681,8 @@ static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
+ if (o->nb_filters > 1)
+ av_log(NULL, AV_LOG_ERROR, "Only '-vf %s' read, ignoring remaining -vf options\n", ost->filters);
if (!ost->stream_copy) {
const char *p = NULL;
@@ -1862,6 +1864,8 @@ static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, in
MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
+ if (o->nb_filters > 1)
+ av_log(NULL, AV_LOG_ERROR, "Only '-af %s' read, ignoring remaining -af options\n", ost->filters);
if (!ost->stream_copy) {
char *sample_fmt = NULL;
--
1.7.10.4
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
