hevc: eliminate the last element from TransformTree

[ffmpeg] / libavcodec / h264_mp4toannexb_bsf.c

diff --git a/libavcodec/h264_mp4toannexb_bsf.c b/libavcodec/h264_mp4toannexb_bsf.c
index 86b948a31740085e1490d778653568d5566935b5..3b212e5a553e3c1c19e2ea28662a9acb0be64e9f 100644 (file)
--- a/libavcodec/h264_mp4toannexb_bsf.c
+++ b/libavcodec/h264_mp4toannexb_bsf.c
@@ -37,13 +37,14 @@ static int alloc_and_copy(uint8_t **poutbuf, int *poutbuf_size,
 {
     uint32_t offset         = *poutbuf_size;
     uint8_t nal_header_size = offset ? 3 : 4;
-    void *tmp;
+    int err;
 
     *poutbuf_size += sps_pps_size + in_size + nal_header_size;
-    tmp = av_realloc(*poutbuf, *poutbuf_size);
-    if (!tmp)
-        return AVERROR(ENOMEM);
-    *poutbuf = tmp;
+    if ((err = av_reallocp(poutbuf,
+                           *poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE)) < 0) {
+        *poutbuf_size = 0;
+        return err;
+    }
     if (sps_pps)
         memcpy(*poutbuf + offset, sps_pps, sps_pps_size);
     memcpy(*poutbuf + sps_pps_size + nal_header_size + offset, in, in_size);
@@ -84,7 +85,7 @@ static int h264_extradata_to_annexb(AVCodecContext *avctx, const int padding)
     }
 
     while (unit_nb--) {
-        void *tmp;
+        int err;
 
         unit_size   = AV_RB16(extradata);
         total_size += unit_size + 4;
@@ -94,12 +95,8 @@ static int h264_extradata_to_annexb(AVCodecContext *avctx, const int padding)
             av_free(out);
             return AVERROR(EINVAL);
         }
-        tmp = av_realloc(out, total_size + padding);
-        if (!tmp) {
-            av_free(out);
-            return AVERROR(ENOMEM);
-        }
-        out = tmp;
+        if ((err = av_reallocp(&out, total_size + padding)) < 0)
+            return err;
         memcpy(out + total_size - unit_size - 4, nalu_header, 4);
         memcpy(out + total_size - unit_size, extradata + 2, unit_size);
         extradata += 2 + unit_size;