[FFmpeg-devel] [PATCH 2/4] lavc: Add a AVClass for AVFrames.

[Michael Niedermayer]

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
 libavcodec/avcodec.h |    8 ++++++++
 libavcodec/options.c |   24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index dfd15e5..f6e4b07 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -4687,4 +4687,12 @@ enum AVMediaType avcodec_get_type(enum CodecID codec_id);
  */
 const AVClass *avcodec_get_class(void);
 
+/**
+ * Get the AVClass for AVFrame. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_frame_class(void);
+
 #endif /* AVCODEC_AVCODEC_H */
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 0a82d50..272776c 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -700,3 +700,27 @@ const AVClass *avcodec_get_class(void)
 {
     return &av_codec_context_class;
 }
+
+#define FOFFSET(x) offsetof(AVFrame,x)
+
+static const AVOption frame_options[]={
+{"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.dbl = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
+{"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.dbl = -1 }, INT64_MIN, INT64_MAX, 0},
+{"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
+{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.dbl = -1 }, 0, INT_MAX, 0},
+{NULL},
+};
+
+static const AVClass av_frame_class = {
+    .class_name              = "AVFrame",
+    .item_name               = NULL,
+    .option                  = frame_options,
+    .version                 = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_frame_class(void)
+{
+    return &av_frame_class;
+}
-- 
1.7.5.4