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/aura.c | 42 ++++++++----------------------------------
 1 file changed, 8 insertions(+), 34 deletions(-)

(limited to 'libavcodec/aura.c')

diff --git a/libavcodec/aura.c b/libavcodec/aura.c
index 7256dc8274..b51aedeccf 100644
--- a/libavcodec/aura.c
+++ b/libavcodec/aura.c
@@ -27,16 +27,8 @@
 #include "internal.h"
 #include "libavutil/internal.h"
 
-typedef struct AuraDecodeContext {
-    AVCodecContext *avctx;
-    AVFrame frame;
-} AuraDecodeContext;
-
 static av_cold int aura_decode_init(AVCodecContext *avctx)
 {
-    AuraDecodeContext *s = avctx->priv_data;
-
-    s->avctx = avctx;
     /* width needs to be divisible by 4 for this codec to work */
     if (avctx->width & 0x3)
         return AVERROR(EINVAL);
@@ -49,7 +41,7 @@ static int aura_decode_frame(AVCodecContext *avctx,
                              void *data, int *got_frame,
                              AVPacket *pkt)
 {
-    AuraDecodeContext *s = avctx->priv_data;
+    AVFrame *frame = data;
     uint8_t *Y, *U, *V;
     uint8_t val;
     int x, y, ret;
@@ -67,19 +59,14 @@ static int aura_decode_frame(AVCodecContext *avctx,
     /* pixel data starts 48 bytes in, after 3x16-byte tables */
     buf += 48;
 
-    if (s->frame.data[0])
-        avctx->release_buffer(avctx, &s->frame);
-
-    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID;
-    s->frame.reference = 0;
-    if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
 
-    Y = s->frame.data[0];
-    U = s->frame.data[1];
-    V = s->frame.data[2];
+    Y = frame->data[0];
+    U = frame->data[1];
+    V = frame->data[2];
 
     /* iterate through each line in the height */
     for (y = 0; y < avctx->height; y++) {
@@ -102,34 +89,21 @@ static int aura_decode_frame(AVCodecContext *avctx,
             Y[1] = Y[ 0] + delta_table[val & 0xF];
             Y   += 2; U++; V++;
         }
-        Y += s->frame.linesize[0] -  avctx->width;
-        U += s->frame.linesize[1] - (avctx->width >> 1);
-        V += s->frame.linesize[2] - (avctx->width >> 1);
+        Y += frame->linesize[0] -  avctx->width;
+        U += frame->linesize[1] - (avctx->width >> 1);
+        V += frame->linesize[2] - (avctx->width >> 1);
     }
 
     *got_frame = 1;
-    *(AVFrame*)data = s->frame;
 
     return pkt->size;
 }
 
-static av_cold int aura_decode_end(AVCodecContext *avctx)
-{
-    AuraDecodeContext *s = avctx->priv_data;
-
-    if (s->frame.data[0])
-        avctx->release_buffer(avctx, &s->frame);
-
-    return 0;
-}
-
 AVCodec ff_aura2_decoder = {
     .name           = "aura2",
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_AURA2,
-    .priv_data_size = sizeof(AuraDecodeContext),
     .init           = aura_decode_init,
-    .close          = aura_decode_end,
     .decode         = aura_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("Auravision Aura 2"),
-- 
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