Use new static VLC scheme in Indeo2, Musepack and WNV1 decoders

[frescor/ffmpeg.git] / libavcodec / indeo2.c

diff --git a/libavcodec/indeo2.c b/libavcodec/indeo2.c
index 3814e5250f3a7911b34b40285f568d3f17790d08..53624a10786bc0392c8e3f027a82c03cd3994ce5 100644 (file)
--- a/libavcodec/indeo2.c
+++ b/libavcodec/indeo2.c
@@ -1,30 +1,31 @@
 /*
- * Indel Indeo 2 codec
+ * Intel Indeo 2 codec
  * Copyright (c) 2005 Konstantin Shishkov
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
  */
 
 /**
- * @file indeo2.c
+ * @file libavcodec/indeo2.c
  * Intel Indeo 2 decoder.
  */
 #define ALT_BITSTREAM_READER_LE
 #include "avcodec.h"
-#include "bitstream.h"
+#include "get_bits.h"
 #include "indeo2data.h"
 
 typedef struct Ir2Context{
@@ -85,11 +86,11 @@ static int ir2_decode_plane(Ir2Context *ctx, int width, int height, uint8_t *dst
                 }
             } else { /* add two deltas from table */
                 t = dst[out - stride] + (table[c * 2] - 128);
-                t= clip_uint8(t);
+                t= av_clip_uint8(t);
                 dst[out] = t;
                 out++;
                 t = dst[out - stride] + (table[(c * 2) + 1] - 128);
-                t= clip_uint8(t);
+                t= av_clip_uint8(t);
                 dst[out] = t;
                 out++;
             }
@@ -119,11 +120,11 @@ static int ir2_decode_plane_inter(Ir2Context *ctx, int width, int height, uint8_
                 out += c * 2;
             } else { /* add two deltas from table */
                 t = dst[out] + (((table[c * 2] - 128)*3) >> 2);
-                t= clip_uint8(t);
+                t= av_clip_uint8(t);
                 dst[out] = t;
                 out++;
                 t = dst[out] + (((table[(c * 2) + 1] - 128)*3) >> 2);
-                t= clip_uint8(t);
+                t= av_clip_uint8(t);
                 dst[out] = t;
                 out++;
             }
@@ -135,8 +136,10 @@ static int ir2_decode_plane_inter(Ir2Context *ctx, int width, int height, uint8_
 
 static int ir2_decode_frame(AVCodecContext *avctx,
                         void *data, int *data_size,
-                        uint8_t *buf, int buf_size)
+                        AVPacket *avpkt)
 {
+    const uint8_t *buf = avpkt->data;
+    int buf_size = avpkt->size;
     Ir2Context * const s = avctx->priv_data;
     AVFrame *picture = data;
     AVFrame * const p= (AVFrame*)&s->picture;
@@ -187,20 +190,24 @@ static int ir2_decode_frame(AVCodecContext *avctx,
     return buf_size;
 }
 
-static int ir2_decode_init(AVCodecContext *avctx){
+static av_cold int ir2_decode_init(AVCodecContext *avctx){
     Ir2Context * const ic = avctx->priv_data;
+    static VLC_TYPE vlc_tables[1 << CODE_VLC_BITS][2];
 
     ic->avctx = avctx;
 
     avctx->pix_fmt= PIX_FMT_YUV410P;
 
-    if (!ir2_vlc.table)
+    ir2_vlc.table = vlc_tables;
+    ir2_vlc.table_allocated = 1 << CODE_VLC_BITS;
+#ifdef ALT_BITSTREAM_READER_LE
         init_vlc(&ir2_vlc, CODE_VLC_BITS, IR2_CODES,
                  &ir2_codes[0][1], 4, 2,
-#ifdef ALT_BITSTREAM_READER_LE
-                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC | INIT_VLC_LE);
+                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
 #else
-                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC);
+        init_vlc(&ir2_vlc, CODE_VLC_BITS, IR2_CODES,
+                 &ir2_codes[0][1], 4, 2,
+                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
 #endif
 
     return 0;
@@ -216,4 +223,5 @@ AVCodec indeo2_decoder = {
     NULL,
     ir2_decode_frame,
     CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 2"),
 };