From 759001c534287a96dc96d1e274665feb7059145d Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 21 Nov 2012 21:34:46 +0100
Subject: lavc decoders: work with refcounted frames.

---
 libavcodec/vcr1.c | 39 +++++----------------------------------
 1 file changed, 5 insertions(+), 34 deletions(-)

(limited to 'libavcodec/vcr1.c')

diff --git a/libavcodec/vcr1.c b/libavcodec/vcr1.c
index 499b1c75c6..c4b817ead8 100644
--- a/libavcodec/vcr1.c
+++ b/libavcodec/vcr1.c
@@ -29,55 +29,28 @@
 #include "libavutil/internal.h"
 
 typedef struct VCR1Context {
-    AVFrame picture;
     int delta[16];
     int offset[4];
 } VCR1Context;
 
-static av_cold int vcr1_common_init(AVCodecContext *avctx)
-{
-    VCR1Context *const a = avctx->priv_data;
-
-    avctx->coded_frame = &a->picture;
-
-    return 0;
-}
-
 static av_cold int vcr1_decode_init(AVCodecContext *avctx)
 {
-    vcr1_common_init(avctx);
-
     avctx->pix_fmt = AV_PIX_FMT_YUV410P;
 
     return 0;
 }
 
-static av_cold int vcr1_decode_end(AVCodecContext *avctx)
-{
-    VCR1Context *s = avctx->priv_data;
-
-    if (s->picture.data[0])
-        avctx->release_buffer(avctx, &s->picture);
-
-    return 0;
-}
-
 static int vcr1_decode_frame(AVCodecContext *avctx, void *data,
                              int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf        = avpkt->data;
     int buf_size              = avpkt->size;
     VCR1Context *const a      = avctx->priv_data;
-    AVFrame *picture          = data;
-    AVFrame *const p          = &a->picture;
+    AVFrame *const p          = data;
     const uint8_t *bytestream = buf;
     int i, x, y, ret;
 
-    if (p->data[0])
-        avctx->release_buffer(avctx, p);
-
-    p->reference = 0;
-    if ((ret = ff_get_buffer(avctx, p)) < 0) {
+    if ((ret = ff_get_buffer(avctx, p, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
@@ -91,11 +64,11 @@ static int vcr1_decode_frame(AVCodecContext *avctx, void *data,
 
     for (y = 0; y < avctx->height; y++) {
         int offset;
-        uint8_t *luma = &a->picture.data[0][y * a->picture.linesize[0]];
+        uint8_t *luma = &p->data[0][y * p->linesize[0]];
 
         if ((y & 3) == 0) {
-            uint8_t *cb = &a->picture.data[1][(y >> 2) * a->picture.linesize[1]];
-            uint8_t *cr = &a->picture.data[2][(y >> 2) * a->picture.linesize[2]];
+            uint8_t *cb = &p->data[1][(y >> 2) * p->linesize[1]];
+            uint8_t *cr = &p->data[2][(y >> 2) * p->linesize[2]];
 
             for (i = 0; i < 4; i++)
                 a->offset[i] = *bytestream++;
@@ -131,7 +104,6 @@ static int vcr1_decode_frame(AVCodecContext *avctx, void *data,
         }
     }
 
-    *picture   = a->picture;
     *got_frame = 1;
 
     return buf_size;
@@ -143,7 +115,6 @@ AVCodec ff_vcr1_decoder = {
     .id             = AV_CODEC_ID_VCR1,
     .priv_data_size = sizeof(VCR1Context),
     .init           = vcr1_decode_init,
-    .close          = vcr1_decode_end,
     .decode         = vcr1_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("ATI VCR1"),
-- 
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