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/flashsv.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

(limited to 'libavcodec/flashsv.c')

diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c
index 3c5a35c0dd..3f211926e3 100644
--- a/libavcodec/flashsv.c
+++ b/libavcodec/flashsv.c
@@ -41,6 +41,7 @@
 #include "avcodec.h"
 #include "bytestream.h"
 #include "get_bits.h"
+#include "internal.h"
 
 typedef struct BlockInfo {
     uint8_t *pos;
@@ -238,7 +239,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
 {
     int buf_size       = avpkt->size;
     FlashSVContext *s  = avctx->priv_data;
-    int h_blocks, v_blocks, h_part, v_part, i, j;
+    int h_blocks, v_blocks, h_part, v_part, i, j, ret;
     GetBitContext gb;
 
     /* no supplementary picture */
@@ -327,13 +328,9 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
             s->image_width, s->image_height, s->block_width, s->block_height,
             h_blocks, v_blocks, h_part, v_part);
 
-    s->frame.reference    = 3;
-    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID    |
-                            FF_BUFFER_HINTS_PRESERVE |
-                            FF_BUFFER_HINTS_REUSABLE;
-    if (avctx->reget_buffer(avctx, &s->frame) < 0) {
+    if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     /* loop over all block columns */
@@ -358,8 +355,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
             s->diff_height    = cur_blk_height;
 
             if (8 * size > get_bits_left(&gb)) {
-                avctx->release_buffer(avctx, &s->frame);
-                s->frame.data[0] = NULL;
+                av_frame_unref(&s->frame);
                 return AVERROR_INVALIDDATA;
             }
 
@@ -441,8 +437,10 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
         memcpy(s->keyframe, s->frame.data[0], s->frame.linesize[0] * avctx->height);
     }
 
+    if ((ret = av_frame_ref(data, &s->frame)) < 0)
+        return ret;
+
     *got_frame = 1;
-    *(AVFrame*)data = s->frame;
 
     if ((get_bits_count(&gb) / 8) != buf_size)
         av_log(avctx, AV_LOG_ERROR, "buffer not fully consumed (%d != %d)\n",
@@ -458,8 +456,7 @@ static av_cold int flashsv_decode_end(AVCodecContext *avctx)
     FlashSVContext *s = avctx->priv_data;
     inflateEnd(&s->zstream);
     /* release the frame if needed */
-    if (s->frame.data[0])
-        avctx->release_buffer(avctx, &s->frame);
+    av_frame_unref(&s->frame);
 
     /* free the tmpblock */
     av_free(s->tmpblock);
-- 
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