Shut up an uninitialized variable GCC warning in VP8.

[ffmpeg] / libavcodec / 4xm.c

diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index dd7daa5adddbb87a7cd108719ccb5110f9284aef..b6a97aa187763e41d19e99979f14e7f774da55c7 100644 (file)
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -20,14 +20,14 @@
  */
 
 /**
- * @file libavcodec/4xm.c
+ * @file
  * 4XM codec.
  */
 
 #include "libavutil/intreadwrite.h"
 #include "avcodec.h"
 #include "dsputil.h"
-#include "bitstream.h"
+#include "get_bits.h"
 #include "bytestream.h"
 
 //#undef NDEBUG
@@ -137,8 +137,8 @@ typedef struct FourXContext{
     int mv[256];
     VLC pre_vlc;
     int last_dc;
-    DECLARE_ALIGNED_8(DCTELEM, block[6][64]);
-    uint8_t *bitstream_buffer;
+    DECLARE_ALIGNED(16, DCTELEM, block)[6][64];
+    void *bitstream_buffer;
     unsigned int bitstream_buffer_size;
     int version;
     CFrameBuffer cfrm[CFRAME_BUFFER_COUNT];
@@ -237,12 +237,15 @@ static void idct(DCTELEM block[64]){
 }
 
 static av_cold void init_vlcs(FourXContext *f){
+    static VLC_TYPE table[8][32][2];
     int i;
 
     for(i=0; i<8; i++){
+        block_type_vlc[0][i].table= table[i];
+        block_type_vlc[0][i].table_allocated= 32;
         init_vlc(&block_type_vlc[0][i], BLOCK_TYPE_VLC_BITS, 7,
                  &block_type_tab[0][i][0][1], 2, 1,
-                 &block_type_tab[0][i][0][0], 2, 1, 1);
+                 &block_type_tab[0][i][0][0], 2, 1, INIT_VLC_USE_NEW_STATIC);
     }
 }
 
@@ -330,16 +333,16 @@ static void decode_p_block(FourXContext *f, uint16_t *dst, uint16_t *src, int lo
             av_log(f->avctx, AV_LOG_ERROR, "mv out of pic\n");
             return;
         }
-        mcdc(dst, src, log2w, h, stride, 1, le2me_16(*f->wordstream++));
+        mcdc(dst, src, log2w, h, stride, 1, av_le2ne16(*f->wordstream++));
     }else if(code == 5){
-        mcdc(dst, src, log2w, h, stride, 0, le2me_16(*f->wordstream++));
+        mcdc(dst, src, log2w, h, stride, 0, av_le2ne16(*f->wordstream++));
     }else if(code == 6){
         if(log2w){
-            dst[0] = le2me_16(*f->wordstream++);
-            dst[1] = le2me_16(*f->wordstream++);
+            dst[0] = av_le2ne16(*f->wordstream++);
+            dst[1] = av_le2ne16(*f->wordstream++);
         }else{
-            dst[0     ] = le2me_16(*f->wordstream++);
-            dst[stride] = le2me_16(*f->wordstream++);
+            dst[0     ] = av_le2ne16(*f->wordstream++);
+            dst[stride] = av_le2ne16(*f->wordstream++);
         }
     }
 }
@@ -375,8 +378,10 @@ static int decode_p_frame(FourXContext *f, const uint8_t *buf, int length){
         return -1;
     }
 
-    f->bitstream_buffer= av_fast_realloc(f->bitstream_buffer, &f->bitstream_buffer_size, bitstream_size + FF_INPUT_BUFFER_PADDING_SIZE);
-    f->dsp.bswap_buf((uint32_t*)f->bitstream_buffer, (const uint32_t*)(buf + extra), bitstream_size/4);
+    av_fast_malloc(&f->bitstream_buffer, &f->bitstream_buffer_size, bitstream_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (!f->bitstream_buffer)
+        return AVERROR(ENOMEM);
+    f->dsp.bswap_buf(f->bitstream_buffer, (const uint32_t*)(buf + extra), bitstream_size/4);
     init_get_bits(&f->gb, f->bitstream_buffer, 8*bitstream_size);
 
     f->wordstream= (const uint16_t*)(buf + extra + bitstream_size);
@@ -653,8 +658,10 @@ static int decode_i_frame(FourXContext *f, const uint8_t *buf, int length){
 
     prestream_size= length + buf - prestream;
 
-    f->bitstream_buffer= av_fast_realloc(f->bitstream_buffer, &f->bitstream_buffer_size, prestream_size + FF_INPUT_BUFFER_PADDING_SIZE);
-    f->dsp.bswap_buf((uint32_t*)f->bitstream_buffer, (const uint32_t*)prestream, prestream_size/4);
+    av_fast_malloc(&f->bitstream_buffer, &f->bitstream_buffer_size, prestream_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (!f->bitstream_buffer)
+        return AVERROR(ENOMEM);
+    f->dsp.bswap_buf(f->bitstream_buffer, (const uint32_t*)prestream, prestream_size/4);
     init_get_bits(&f->pre_gb, f->bitstream_buffer, 8*prestream_size);
 
     f->last_dc= 0*128*8*8;
@@ -808,7 +815,7 @@ static av_cold int decode_init(AVCodecContext *avctx){
     init_vlcs(f);
 
     if(f->version>2) avctx->pix_fmt= PIX_FMT_RGB565;
-    else             avctx->pix_fmt= PIX_FMT_RGB555;
+    else             avctx->pix_fmt= PIX_FMT_BGR555;
 
     return 0;
 }
@@ -825,20 +832,24 @@ static av_cold int decode_end(AVCodecContext *avctx){
         f->cfrm[i].allocated_size= 0;
     }
     free_vlc(&f->pre_vlc);
+    if(f->current_picture.data[0])
+        avctx->release_buffer(avctx, &f->current_picture);
+    if(f->last_picture.data[0])
+        avctx->release_buffer(avctx, &f->last_picture);
 
     return 0;
 }
 
 AVCodec fourxm_decoder = {
     "4xm",
-    CODEC_TYPE_VIDEO,
+    AVMEDIA_TYPE_VIDEO,
     CODEC_ID_4XM,
     sizeof(FourXContext),
     decode_init,
     NULL,
     decode_end,
     decode_frame,
-    /*CODEC_CAP_DR1,*/
+    CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("4X Movie"),
 };