lavc decoders: work with refcounted frames.

1 files changed, 12 insertions, 19 deletions

diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index 3ed01ad..574d053 100644
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -41,7 +41,6 @@
  */
 typedef struct KmvcContext {
     AVCodecContext *avctx;
-    AVFrame pic;
 
     int setpal;
     int palsize;
@@ -247,6 +246,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     KmvcContext *const ctx = avctx->priv_data;
+    AVFrame *frame = data;
     uint8_t *out, *src;
     int i, ret;
     int header;
@@ -254,12 +254,8 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
     const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
 
     bytestream2_init(&ctx->g, avpkt->data, avpkt->size);
-    if (ctx->pic.data[0])
-        avctx->release_buffer(avctx, &ctx->pic);
 
-    ctx->pic.reference = 1;
-    ctx->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
-    if ((ret = ff_get_buffer(avctx, &ctx->pic)) < 0) {
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
@@ -277,15 +273,15 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
     }
 
     if (header & KMVC_KEYFRAME) {
-        ctx->pic.key_frame = 1;
-        ctx->pic.pict_type = AV_PICTURE_TYPE_I;
+        frame->key_frame = 1;
+        frame->pict_type = AV_PICTURE_TYPE_I;
     } else {
-        ctx->pic.key_frame = 0;
-        ctx->pic.pict_type = AV_PICTURE_TYPE_P;
+        frame->key_frame = 0;
+        frame->pict_type = AV_PICTURE_TYPE_P;
     }
 
     if (header & KMVC_PALETTE) {
-        ctx->pic.palette_has_changed = 1;
+        frame->palette_has_changed = 1;
         // palette starts from index 1 and has 127 entries
         for (i = 1; i <= ctx->palsize; i++) {
             ctx->pal[i] = bytestream2_get_be24(&ctx->g);
@@ -293,17 +289,17 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
     }
 
     if (pal) {
-        ctx->pic.palette_has_changed = 1;
+        frame->palette_has_changed = 1;
         memcpy(ctx->pal, pal, AVPALETTE_SIZE);
     }
 
     if (ctx->setpal) {
         ctx->setpal = 0;
-        ctx->pic.palette_has_changed = 1;
+        frame->palette_has_changed = 1;
     }
 
     /* make the palette available on the way out */
-    memcpy(ctx->pic.data[1], ctx->pal, 1024);
+    memcpy(frame->data[1], ctx->pal, 1024);
 
     blocksize = bytestream2_get_byte(&ctx->g);
 
@@ -328,12 +324,12 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
         return AVERROR_INVALIDDATA;
     }
 
-    out = ctx->pic.data[0];
+    out = frame->data[0];
     src = ctx->cur;
     for (i = 0; i < avctx->height; i++) {
         memcpy(out, src, avctx->width);
         src += 320;
-        out += ctx->pic.linesize[0];
+        out += frame->linesize[0];
     }
 
     /* flip buffers */
@@ -346,7 +342,6 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
     }
 
     *got_frame = 1;
-    *(AVFrame *) data = ctx->pic;
 
     /* always report that the buffer was completely consumed */
     return avpkt->size;
@@ -415,8 +410,6 @@ static av_cold int decode_end(AVCodecContext * avctx)
 
     av_freep(&c->frm0);
     av_freep(&c->frm1);
-    if (c->pic.data[0])
-        avctx->release_buffer(avctx, &c->pic);
 
     return 0;
 }