lavc: factorize ff_{thread_,re,}get_buffer error messages.

Coccinelle profile used:

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_get_buffer(ctx, f, flags)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str;
  @@

  -if ((r = ff_reget_buffer(ctx, f)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_reget_buffer(ctx, f)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
  +    return r;

...along with some manual patches for the remaining ones.

1 files changed, 3 insertions, 5 deletions

diff --git a/libavcodec/yuv4dec.c b/libavcodec/yuv4dec.c
index 95cacbe819..6965f3924f 100644
--- a/libavcodec/yuv4dec.c
+++ b/libavcodec/yuv4dec.c
@@ -36,17 +36,15 @@ static int yuv4_decode_frame(AVCodecContext *avctx, void *data,
     AVFrame *pic = data;
     const uint8_t *src = avpkt->data;
     uint8_t *y, *u, *v;
-    int i, j;
+    int i, j, ret;
 
     if (avpkt->size < 6 * (avctx->width + 1 >> 1) * (avctx->height + 1 >> 1)) {
         av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
         return AVERROR(EINVAL);
     }
 
-    if (ff_get_buffer(avctx, pic, 0) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
-        return AVERROR(ENOMEM);
-    }
+    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+        return ret;
 
     pic->key_frame = 1;
     pic->pict_type = AV_PICTURE_TYPE_I;