[FFmpeg-cvslog] lavfi/spp: add "quality" option in runtime change path

[Jun Zhao]

ffmpeg | branch: master | Jun Zhao <barryjzhao at tencent.com> | Fri Jan 10 19:48:02 2020 +0800| [692f0519bbefbeac2004aba92c35a37c5f378eaf] | committer: Jun Zhao

lavfi/spp: add "quality" option in runtime change path

it's stranage to use option "level" in runtime change path but used
"quality" in option, add "quality" in runtime change path, it's more
intuitive and keep the "level" for compatibility.

Reviewe-by: Michael Niedermayer <michael at niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=692f0519bbefbeac2004aba92c35a37c5f378eaf
---

 doc/filters.texi     | 9 +++++++++
 libavfilter/vf_spp.c | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index d51fc4d9e0..e691ec0bb2 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -17290,6 +17290,15 @@ option may cause flicker since the B-Frames have often larger QP. Default is
 @code{0} (not enabled).
 @end table
 
+ at subsection Commands
+
+This filter supports the following commands:
+ at table @option
+ at item level
+ at item quality
+Same as quality option. And the command accepts the @code{max} same as the @code{6}.
+ at end table
+
 @section sr
 
 Scale the input by applying one of the super-resolution methods based on
diff --git a/libavfilter/vf_spp.c b/libavfilter/vf_spp.c
index fe579cedb1..db381cdf30 100644
--- a/libavfilter/vf_spp.c
+++ b/libavfilter/vf_spp.c
@@ -444,7 +444,7 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
 {
     SPPContext *s = ctx->priv;
 
-    if (!strcmp(cmd, "level")) {
+    if (!strcmp(cmd, "level") || !strcmp(cmd, "quality")) {
         if (!strcmp(args, "max"))
             s->log2_count = MAX_LEVEL;
         else