basic type mechanism working

1 files changed, 4 insertions, 7 deletions

diff --git a/ffmpeg/libavcodec/wnv1.c b/ffmpeg/libavcodec/wnv1.c
index 162dd1f..99aee3c 100644
--- a/ffmpeg/libavcodec/wnv1.c
+++ b/ffmpeg/libavcodec/wnv1.c
@@ -31,8 +31,6 @@
 
 
 typedef struct WNV1Context {
-    AVCodecContext *avctx;
-
     int shift;
     GetBitContext gb;
 } WNV1Context;
@@ -70,8 +68,8 @@ static int decode_frame(AVCodecContext *avctx,
     int prev_y = 0, prev_u = 0, prev_v = 0;
     uint8_t *rbuf;
 
-    if(buf_size<=8) {
-        av_log(avctx, AV_LOG_ERROR, "buf_size %d is too small\n", buf_size);
+    if (buf_size <= 8) {
+        av_log(avctx, AV_LOG_ERROR, "Packet size %d is too small\n", buf_size);
         return AVERROR_INVALIDDATA;
     }
 
@@ -80,6 +78,7 @@ static int decode_frame(AVCodecContext *avctx,
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
         return AVERROR(ENOMEM);
     }
+    memset(rbuf + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
 
     if ((ret = ff_get_buffer(avctx, p, 0)) < 0) {
         av_free(rbuf);
@@ -133,10 +132,8 @@ static int decode_frame(AVCodecContext *avctx,
 
 static av_cold int decode_init(AVCodecContext *avctx)
 {
-    WNV1Context * const l = avctx->priv_data;
     static VLC_TYPE code_table[1 << CODE_VLC_BITS][2];
 
-    l->avctx       = avctx;
     avctx->pix_fmt = AV_PIX_FMT_YUV422P;
 
     code_vlc.table           = code_table;
@@ -150,11 +147,11 @@ static av_cold int decode_init(AVCodecContext *avctx)
 
 AVCodec ff_wnv1_decoder = {
     .name           = "wnv1",
+    .long_name      = NULL_IF_CONFIG_SMALL("Winnov WNV1"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_WNV1,
     .priv_data_size = sizeof(WNV1Context),
     .init           = decode_init,
     .decode         = decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("Winnov WNV1"),
 };