ffmpeg: Fix extradata allocation
authorMichael Niedermayer <michaelni@gmx.at>
Fri, 3 Apr 2015 21:44:38 +0000 (23:44 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Fri, 17 Apr 2015 13:20:29 +0000 (15:20 +0200)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4d02dfbde475d249916eb19c360e890059aa6aa5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg.c

index 2be1004..7bf93bd 100644 (file)
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2620,11 +2620,13 @@ static int transcode_init(void)
             enc_ctx->rc_max_rate    = dec_ctx->rc_max_rate;
             enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
             enc_ctx->field_order    = dec_ctx->field_order;
-            enc_ctx->extradata      = av_mallocz(extra_size);
-            if (!enc_ctx->extradata) {
-                return AVERROR(ENOMEM);
+            if (dec_ctx->extradata_size) {
+                enc_ctx->extradata      = av_mallocz(extra_size);
+                if (!enc_ctx->extradata) {
+                    return AVERROR(ENOMEM);
+                }
+                memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
             }
-            memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
             enc_ctx->extradata_size= dec_ctx->extradata_size;
             enc_ctx->bits_per_coded_sample  = dec_ctx->bits_per_coded_sample;