[FFmpeg-cvslog] avutil/opt: allow max=min=0 for pixel formats

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Feb 28 23:55:34 2014 +0100| [52d928daf9c0dc715329f53c10ed9d3f486fceb6] | committer: Michael Niedermayer

avutil/opt: allow max=min=0 for pixel formats

This is neccessary for maintaining ABI compatibility with FFmpeg 2.1

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=52d928daf9c0dc715329f53c10ed9d3f486fceb6
---

 libavutil/opt.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index bff3b6e..652a2dd 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -327,6 +327,12 @@ static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t
     min = FFMAX(o->min, -1);
     max = FFMIN(o->max, fmt_nb-1);
 
+    // hack for compatibility with old ffmpeg
+    if(min == 0 && max == 0) {
+        min = -1;
+        max = fmt_nb-1;
+    }
+
     if (fmt < min || fmt > max) {
         av_log(obj, AV_LOG_ERROR,
                "Value %d for parameter '%s' out of %s format range [%d - %d]\n",