[FFmpeg-cvslog] ffplay: Fix auto insertion point of rotation filter

[wanzhang]

ffmpeg | branch: master | wanzhang <wanzhanghuang at foxmail.com> | Thu Jul 30 01:16:43 2015 +0800| [9cc1e644f39ed6a32e3a9bf5d0d6d663ca5791ab] | committer: Michael Niedermayer

ffplay: Fix auto insertion point of rotation filter

Fixes watermark rotation for videos using auto rotation

Closes #141

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9cc1e644f39ed6a32e3a9bf5d0d6d663ca5791ab
---

 ffplay.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/ffplay.c b/ffplay.c
index 3baefcc..2f8a0bf 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -1905,7 +1905,7 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
     char sws_flags_str[512] = "";
     char buffersrc_args[256];
     int ret;
-    AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;
+    AVFilterContext *filt_src = NULL, *filt_out = NULL, *head_filter, *last_filter = NULL;
     AVCodecContext *codec = is->video_st->codec;
     AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
     AVDictionaryEntry *e = NULL;
@@ -1945,6 +1945,7 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
         goto fail;
 
     last_filter = filt_out;
+    head_filter = filt_src;
 
 /* Note: this macro adds a filter before the lastly added filter, so the
  * processing order of the filters is in reverse */
@@ -1957,11 +1958,11 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
     if (ret < 0)                                                             \
         goto fail;                                                           \
                                                                              \
-    ret = avfilter_link(filt_ctx, 0, last_filter, 0);                        \
+    ret = avfilter_link(head_filter, 0, filt_ctx, 0);                        \
     if (ret < 0)                                                             \
         goto fail;                                                           \
                                                                              \
-    last_filter = filt_ctx;                                                  \
+    head_filter = filt_ctx;                                                  \
 } while (0)
 
     /* SDL YUV code is not handling odd width/height for some driver
@@ -1985,7 +1986,7 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
         }
     }
 
-    if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0)
+    if ((ret = configure_filtergraph(graph, vfilters, head_filter, last_filter)) < 0)
         goto fail;
 
     is->in_video_filter  = filt_src;