[FFmpeg-devel] [PATCH v2] avcodec/h2645_parse: refine the code for better readiablity

[lance.lmwang at gmail.com]

From: Limin Wang <lance.lmwang at gmail.com>

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
---
 libavcodec/h2645_parse.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/libavcodec/h2645_parse.c b/libavcodec/h2645_parse.c
index 307e8643e6..f077900617 100644
--- a/libavcodec/h2645_parse.c
+++ b/libavcodec/h2645_parse.c
@@ -453,16 +453,15 @@ int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
             }
         }
 
-        if (pkt->nals_allocated < pkt->nb_nals + 1) {
-            int new_size = pkt->nals_allocated + 1;
-            void *tmp = av_realloc_array(pkt->nals, new_size, sizeof(*pkt->nals));
+        if (pkt->nb_nals >= pkt->nals_allocated) {
+            void *tmp = av_realloc_array(pkt->nals, pkt->nals_allocated + 1, sizeof(*pkt->nals));
 
             if (!tmp)
                 return AVERROR(ENOMEM);
 
             pkt->nals = tmp;
-            memset(pkt->nals + pkt->nals_allocated, 0,
-                   (new_size - pkt->nals_allocated) * sizeof(*pkt->nals));
+            memset(pkt->nals + pkt->nals_allocated, 0, sizeof(*pkt->nals));
+            pkt->nals_allocated++;
 
             nal = &pkt->nals[pkt->nb_nals];
             nal->skipped_bytes_pos_size = 1024; // initial buffer size
@@ -470,7 +469,6 @@ int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
             if (!nal->skipped_bytes_pos)
                 return AVERROR(ENOMEM);
 
-            pkt->nals_allocated = new_size;
         }
         nal = &pkt->nals[pkt->nb_nals];
 
-- 
2.21.0