avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / xan.c

diff --git a/libavcodec/xan.c b/libavcodec/xan.c
index 1ccf164847bb70aa963534b399cebd84ac4bf720..7ab43db1e08657e1e86d395917f05615fd4edeeb 100644 (file)
--- a/libavcodec/xan.c
+++ b/libavcodec/xan.c
@@ -100,16 +100,12 @@ static av_cold int xan_decode_init(AVCodecContext *avctx)
         return AVERROR(ENOMEM);
     s->buffer2_size = avctx->width * avctx->height;
     s->buffer2 = av_malloc(s->buffer2_size + 130);
-    if (!s->buffer2) {
-        av_freep(&s->buffer1);
+    if (!s->buffer2)
         return AVERROR(ENOMEM);
-    }
 
     s->last_frame = av_frame_alloc();
-    if (!s->last_frame) {
-        xan_decode_end(avctx);
+    if (!s->last_frame)
         return AVERROR(ENOMEM);
-    }
 
     return 0;
 }
@@ -639,7 +635,7 @@ static int xan_decode_frame(AVCodecContext *avctx,
     return buf_size;
 }
 
-AVCodec ff_xan_wc3_decoder = {
+const AVCodec ff_xan_wc3_decoder = {
     .name           = "xan_wc3",
     .long_name      = NULL_IF_CONFIG_SMALL("Wing Commander III / Xan"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -649,4 +645,5 @@ AVCodec ff_xan_wc3_decoder = {
     .close          = xan_decode_end,
     .decode         = xan_decode_frame,
     .capabilities   = AV_CODEC_CAP_DR1,
+    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE,
 };