optimize imdct_half:

[ffmpeg] / libavcodec / vqavideo.c

diff --git a/libavcodec/vqavideo.c b/libavcodec/vqavideo.c
index 8e70143f470bc15f02b8073031fe357d0c159723..028895f8d12f0704615cb1d62096598b08a44ec7 100644 (file)
--- a/libavcodec/vqavideo.c
+++ b/libavcodec/vqavideo.c
@@ -54,7 +54,7 @@
  * file. This is an interesting technique, although it makes random file
  * seeking difficult despite the fact that the frames are all intracoded.
  *
- * V1,2 VQA uses 12-bit codebook indices. If the 12-bit indices were
+ * V1,2 VQA uses 12-bit codebook indexes. If the 12-bit indexes were
  * packed into bytes and then RLE compressed, bytewise, the results would
  * be poor. That is why the coding method divides each index into 2 parts,
  * the top 4 bits and the bottom 8 bits, then RL encodes the 4-bit pieces
@@ -69,7 +69,6 @@
 #include <unistd.h>
 
 #include "avcodec.h"
-#include "dsputil.h"
 
 #define PALETTE_COUNT 256
 #define VQA_HEADER_SIZE 0x2A
@@ -101,7 +100,6 @@ static inline void vqa_debug(const char *format, ...) { }
 typedef struct VqaContext {
 
     AVCodecContext *avctx;
-    DSPContext dsp;
     AVFrame frame;
 
     const unsigned char *buf;
@@ -129,7 +127,7 @@ typedef struct VqaContext {
 
 } VqaContext;
 
-static int vqa_decode_init(AVCodecContext *avctx)
+static av_cold int vqa_decode_init(AVCodecContext *avctx)
 {
     VqaContext *s = avctx->priv_data;
     unsigned char *vqa_header;
@@ -137,7 +135,6 @@ static int vqa_decode_init(AVCodecContext *avctx)
 
     s->avctx = avctx;
     avctx->pix_fmt = PIX_FMT_PAL8;
-    dsputil_init(&s->dsp, avctx);
 
     /* make sure the extradata made it */
     if (s->avctx->extradata_size != VQA_HEADER_SIZE) {
@@ -595,7 +592,7 @@ static int vqa_decode_frame(AVCodecContext *avctx,
     return buf_size;
 }
 
-static int vqa_decode_end(AVCodecContext *avctx)
+static av_cold int vqa_decode_end(AVCodecContext *avctx)
 {
     VqaContext *s = avctx->priv_data;
 
@@ -619,4 +616,5 @@ AVCodec vqa_decoder = {
     vqa_decode_end,
     vqa_decode_frame,
     CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Westwood Studios VQA (Vector Quantized Animation) video"),
 };