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/bfi.c | 29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

(limited to 'libavcodec/bfi.c')

diff --git a/libavcodec/bfi.c b/libavcodec/bfi.c
index 1971c0c855..10544c5569 100644
--- a/libavcodec/bfi.c
+++ b/libavcodec/bfi.c
@@ -33,7 +33,6 @@
 
 typedef struct BFIContext {
     AVCodecContext *avctx;
-    AVFrame frame;
     uint8_t *dst;
 } BFIContext;
 
@@ -48,6 +47,7 @@ static av_cold int bfi_decode_init(AVCodecContext *avctx)
 static int bfi_decode_frame(AVCodecContext *avctx, void *data,
                             int *got_frame, AVPacket *avpkt)
 {
+    AVFrame *frame = data;
     GetByteContext g;
     int buf_size    = avpkt->size;
     BFIContext *bfi = avctx->priv_data;
@@ -57,12 +57,7 @@ static int bfi_decode_frame(AVCodecContext *avctx, void *data,
     uint32_t *pal;
     int i, j, ret, height = avctx->height;
 
-    if (bfi->frame.data[0])
-        avctx->release_buffer(avctx, &bfi->frame);
-
-    bfi->frame.reference = 1;
-
-    if ((ret = ff_get_buffer(avctx, &bfi->frame)) < 0) {
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
@@ -71,14 +66,14 @@ static int bfi_decode_frame(AVCodecContext *avctx, void *data,
 
     /* Set frame parameters and palette, if necessary */
     if (!avctx->frame_number) {
-        bfi->frame.pict_type = AV_PICTURE_TYPE_I;
-        bfi->frame.key_frame = 1;
+        frame->pict_type = AV_PICTURE_TYPE_I;
+        frame->key_frame = 1;
         /* Setting the palette */
         if (avctx->extradata_size > 768) {
             av_log(NULL, AV_LOG_ERROR, "Palette is too large.\n");
             return AVERROR_INVALIDDATA;
         }
-        pal = (uint32_t *)bfi->frame.data[1];
+        pal = (uint32_t *)frame->data[1];
         for (i = 0; i < avctx->extradata_size / 3; i++) {
             int shift = 16;
             *pal = 0;
@@ -87,10 +82,10 @@ static int bfi_decode_frame(AVCodecContext *avctx, void *data,
                          (avctx->extradata[i * 3 + j] >> 4)) << shift;
             pal++;
         }
-        bfi->frame.palette_has_changed = 1;
+        frame->palette_has_changed = 1;
     } else {
-        bfi->frame.pict_type = AV_PICTURE_TYPE_P;
-        bfi->frame.key_frame = 0;
+        frame->pict_type = AV_PICTURE_TYPE_P;
+        frame->key_frame = 0;
     }
 
     bytestream2_skip(&g, 4); // Unpacked size, not required.
@@ -158,22 +153,20 @@ static int bfi_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     src = bfi->dst;
-    dst = bfi->frame.data[0];
+    dst = frame->data[0];
     while (height--) {
         memcpy(dst, src, avctx->width);
         src += avctx->width;
-        dst += bfi->frame.linesize[0];
+        dst += frame->linesize[0];
     }
     *got_frame = 1;
-    *(AVFrame *)data = bfi->frame;
+
     return buf_size;
 }
 
 static av_cold int bfi_decode_close(AVCodecContext *avctx)
 {
     BFIContext *bfi = avctx->priv_data;
-    if (bfi->frame.data[0])
-        avctx->release_buffer(avctx, &bfi->frame);
     av_free(bfi->dst);
     return 0;
 }
-- 
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