lavc decoders: work with refcounted frames.

1 files changed, 6 insertions, 10 deletions

diff --git a/libavcodec/mjpegbdec.c b/libavcodec/mjpegbdec.c
index 9d5a8f31ef..5edc0e4e24 100644
--- a/libavcodec/mjpegbdec.c
+++ b/libavcodec/mjpegbdec.c
@@ -45,10 +45,10 @@ static int mjpegb_decode_frame(AVCodecContext *avctx,
     int buf_size = avpkt->size;
     MJpegDecodeContext *s = avctx->priv_data;
     const uint8_t *buf_end, *buf_ptr;
-    AVFrame *picture = data;
     GetBitContext hgb; /* for the header */
     uint32_t dqt_offs, dht_offs, sof_offs, sos_offs, second_field_offs;
     uint32_t field_size, sod_offs;
+    int ret;
 
     buf_ptr = buf;
     buf_end = buf + buf_size;
@@ -136,17 +136,13 @@ read_header:
 
     //XXX FIXME factorize, this looks very similar to the EOI code
 
-    *picture= *s->picture_ptr;
+    if ((ret = av_frame_ref(data, s->picture_ptr)) < 0)
+        return ret;
     *got_frame = 1;
 
-    if(!s->lossless){
-        picture->quality= FFMAX3(s->qscale[0], s->qscale[1], s->qscale[2]);
-        picture->qstride= 0;
-        picture->qscale_table= s->qscale_table;
-        memset(picture->qscale_table, picture->quality, (s->width+15)/16);
-        if(avctx->debug & FF_DEBUG_QP)
-            av_log(avctx, AV_LOG_DEBUG, "QP: %d\n", picture->quality);
-        picture->quality*= FF_QP2LAMBDA;
+    if (!s->lossless && avctx->debug & FF_DEBUG_QP) {
+        av_log(avctx, AV_LOG_DEBUG, "QP: %d\n",
+               FFMAX3(s->qscale[0], s->qscale[1], s->qscale[2]));
     }
 
     return buf_size;