[FFmpeg-cvslog] lavc: add format field to AVFrame

[Stefano Sabatini]

ffmpeg | branch: master | Stefano Sabatini <stefano.sabatini-lala at poste.it> | Sun May  1 14:10:20 2011 +0200| [8a4a5f6ff756fdba44254015c714f173b2db6f64] | committer: Anton Khirnov

lavc: add format field to AVFrame

The format is a per-frame property, having it in AVFrame simplify the
operation of extraction of that information, since avoids the need to
access the codec/stream context.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8a4a5f6ff756fdba44254015c714f173b2db6f64
---

 libavcodec/avcodec.h |    9 +++++++++
 libavcodec/pthread.c |    1 +
 libavcodec/utils.c   |    4 ++++
 3 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 0204af7..4f24f72 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1272,6 +1272,15 @@ typedef struct AVFrame {
      * - decoding: Read by user.
      */
     int width, height;
+
+    /**
+     * format of the frame, -1 if unknown or unset
+     * Values correspond to enum PixelFormat for video frames,
+     * enum AVSampleFormat for audio)
+     * - encoding: unused
+     * - decoding: Read by user.
+     */
+    int format;
 } AVFrame;
 
 struct AVCodecInternal;
diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 1ec2d1a..a44500b 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -602,6 +602,7 @@ int ff_thread_decode_frame(AVCodecContext *avctx,
         picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
         picture->width  = avctx->width;
         picture->height = avctx->height;
+        picture->format = avctx->pix_fmt;
 
         /*
          * A later call with avkpt->size == 0 may loop over all threads,
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 74932ed..a88d1a7 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -585,6 +585,7 @@ void avcodec_get_frame_defaults(AVFrame *pic){
     pic->pts= AV_NOPTS_VALUE;
     pic->key_frame= 1;
     pic->sample_aspect_ratio = (AVRational){0, 1};
+    pic->format = -1;           /* unknown */
 }
 
 AVFrame *avcodec_alloc_frame(void){
@@ -862,6 +863,7 @@ int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *pi
             picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
             picture->width  = avctx->width;
             picture->height = avctx->height;
+            picture->format = avctx->pix_fmt;
         }
 
         emms_c(); //needed to avoid an emms_c() call before every return;
@@ -983,6 +985,8 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
         if (ret >= 0 && *got_frame_ptr) {
             avctx->frame_number++;
             frame->pkt_dts = avpkt->dts;
+            if (frame->format == AV_SAMPLE_FMT_NONE)
+                frame->format = avctx->sample_fmt;
         }
     }
     return ret;