Module: ffmpeg
Branch: master
Commit: 910b5b82e8429f2e478d8e2aaff5e522c8848b59

Author: Michael Niedermayer <[email protected]>
Date:   Wed Feb  2 19:39:56 2011 +0000

Add sample_aspect_ratio to AVFilterLink

Signed-off-by: Mans Rullgard <[email protected]>

---

 libavfilter/avfilter.c     |    4 ++++
 libavfilter/avfilter.h     |    5 +++--
 libavfilter/vf_aspect.c    |   14 ++++++++++++++
 libavfilter/vf_transpose.c |    5 +++++
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 554fbd4..872ca23 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -194,6 +194,10 @@ int avfilter_config_links(AVFilterContext *filter)
                 link->time_base = link->src && link->src->input_count ?
                     link->src->inputs[0]->time_base : AV_TIME_BASE_Q;
 
+            if (link->sample_aspect_ratio.num == 0 && 
link->sample_aspect_ratio.den == 0)
+                link->sample_aspect_ratio = link->src->input_count ?
+                    link->src->inputs[0]->sample_aspect_ratio : 
(AVRational){1,1};
+
             if ((config_link = link->dstpad->config_props))
                 if ((ret = config_link(link)) < 0)
                     return ret;
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index cc3dce7..451d0be 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -27,7 +27,7 @@
 #include "libavcore/samplefmt.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  1
-#define LIBAVFILTER_VERSION_MINOR 75
+#define LIBAVFILTER_VERSION_MINOR 76
 #define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
@@ -580,9 +580,10 @@ struct AVFilterLink {
 
     enum AVMediaType type;      ///< filter media type
 
-    /* These two parameters apply only to video */
+    /* These parameters apply only to video */
     int w;                      ///< agreed upon image width
     int h;                      ///< agreed upon image height
+    AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
     /* These two parameters apply only to audio */
     int64_t channel_layout;     ///< channel layout of current buffer (see 
libavcore/audioconvert.h)
     int64_t sample_rate;        ///< samples per second
diff --git a/libavfilter/vf_aspect.c b/libavfilter/vf_aspect.c
index 6f86bf2..95bfb66 100644
--- a/libavfilter/vf_aspect.c
+++ b/libavfilter/vf_aspect.c
@@ -82,6 +82,9 @@ static int setdar_config_props(AVFilterLink *inlink)
 
     av_log(inlink->dst, AV_LOG_INFO, "w:%d h:%d -> dar:%d/%d par:%d/%d\n",
            inlink->w, inlink->h, dar.num, dar.den, aspect->aspect.num, 
aspect->aspect.den);
+
+    inlink->sample_aspect_ratio = aspect->aspect;
+
     return 0;
 }
 
@@ -108,6 +111,16 @@ AVFilter avfilter_vf_setdar = {
 #endif /* CONFIG_SETDAR_FILTER */
 
 #if CONFIG_SETSAR_FILTER
+/* for setdar filter, convert from frame aspect ratio to pixel aspect ratio */
+static int setsar_config_props(AVFilterLink *inlink)
+{
+    AspectContext *aspect = inlink->dst->priv;
+
+    inlink->sample_aspect_ratio = aspect->aspect;
+
+    return 0;
+}
+
 AVFilter avfilter_vf_setsar = {
     .name      = "setsar",
     .description = NULL_IF_CONFIG_SMALL("Set the pixel sample aspect ratio."),
@@ -118,6 +131,7 @@ AVFilter avfilter_vf_setsar = {
 
     .inputs    = (AVFilterPad[]) {{ .name             = "default",
                                     .type             = AVMEDIA_TYPE_VIDEO,
+                                    .config_props     = setsar_config_props,
                                     .get_video_buffer = 
avfilter_null_get_video_buffer,
                                     .start_frame      = start_frame,
                                     .end_frame        = 
avfilter_null_end_frame },
diff --git a/libavfilter/vf_transpose.c b/libavfilter/vf_transpose.c
index 970c381..272b17f 100644
--- a/libavfilter/vf_transpose.c
+++ b/libavfilter/vf_transpose.c
@@ -102,6 +102,11 @@ static int config_props_output(AVFilterLink *outlink)
     outlink->w = inlink->h;
     outlink->h = inlink->w;
 
+    if (inlink->sample_aspect_ratio.num){
+        outlink->sample_aspect_ratio = av_div_q((AVRational){1,1}, 
inlink->sample_aspect_ratio);
+    } else
+        outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
+
     av_log(ctx, AV_LOG_INFO, "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s 
vflip:%d\n",
            inlink->w, inlink->h, trans->dir, outlink->w, outlink->h,
            trans->dir == 1 || trans->dir == 3 ? "clockwise" : 
"counterclockwise",

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