X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Featgv.c;h=3894f2beccd8c5bee45d5cf5aaf74d474b37561e;hb=5b145290df2998a9836a93eb925289c6c8b63af0;hp=3bc650665cffe66ad9567094be54fb16f39001f3;hpb=9b8d11a76ae7bca8bbb58abb822138f8b42c776c;p=ffmpeg

diff --git a/libavcodec/eatgv.c b/libavcodec/eatgv.c
index 3bc650665cf..3894f2beccd 100644
--- a/libavcodec/eatgv.c
+++ b/libavcodec/eatgv.c
@@ -28,13 +28,14 @@
  * http://wiki.multimedia.cx/index.php?title=Electronic_Arts_TGV
  */
 
-#include "avcodec.h"
-#define BITSTREAM_READER_LE
-#include "get_bits.h"
-#include "internal.h"
 #include "libavutil/imgutils.h"
 #include "libavutil/mem.h"
 
+#define BITSTREAM_READER_LE
+#include "avcodec.h"
+#include "bitstream.h"
+#include "internal.h"
+
 #define EA_PREAMBLE_SIZE    8
 #define kVGT_TAG MKTAG('k', 'V', 'G', 'T')
 
@@ -55,7 +56,7 @@ static av_cold int tgv_decode_init(AVCodecContext *avctx)
 {
     TgvContext *s = avctx->priv_data;
     s->avctx         = avctx;
-    avctx->time_base = (AVRational){1, 15};
+    avctx->framerate = (AVRational){ 15, 1 };
     avctx->pix_fmt   = AV_PIX_FMT_PAL8;
 
     s->last_frame = av_frame_alloc();
@@ -152,7 +153,7 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
     int num_blocks_packed;
     int vector_bits;
     int i,j,x,y;
-    GetBitContext gb;
+    BitstreamContext bc;
     int mvbits;
     const uint8_t *blocks_raw;
 
@@ -165,7 +166,7 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
     vector_bits       = AV_RL16(&buf[6]);
     buf += 12;
 
-    if (vector_bits > MIN_CACHE_BITS || !vector_bits) {
+    if (vector_bits > 32 || !vector_bits) {
         av_log(s->avctx, AV_LOG_ERROR,
                "Invalid value for motion vector bits: %d\n", vector_bits);
         return AVERROR_INVALIDDATA;
@@ -173,7 +174,9 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
 
     /* allocate codebook buffers as necessary */
     if (num_mvs > s->num_mvs) {
-        s->mv_codebook = av_realloc(s->mv_codebook, num_mvs*2*sizeof(int));
+        int err = av_reallocp(&s->mv_codebook, num_mvs * 2 * sizeof(int));
+        if (err < 0)
+            return err;
         s->num_mvs = num_mvs;
     }
 
@@ -192,10 +195,10 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
     if (buf + (mvbits >> 3) + 16 * num_blocks_raw + 8 * num_blocks_packed > buf_end)
         return AVERROR_INVALIDDATA;
 
-    init_get_bits(&gb, buf, mvbits);
+    bitstream_init(&bc, buf, mvbits);
     for (i = 0; i < num_mvs; i++) {
-        s->mv_codebook[i][0] = get_sbits(&gb, 10);
-        s->mv_codebook[i][1] = get_sbits(&gb, 10);
+        s->mv_codebook[i][0] = bitstream_read_signed(&bc, 10);
+        s->mv_codebook[i][1] = bitstream_read_signed(&bc, 10);
     }
     buf += mvbits >> 3;
 
@@ -204,25 +207,25 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
     buf       += num_blocks_raw * 16;
 
     /* read compressed blocks */
-    init_get_bits(&gb, buf, (buf_end - buf) << 3);
+    bitstream_init8(&bc, buf, buf_end - buf);
     for (i = 0; i < num_blocks_packed; i++) {
         int tmp[4];
         for (j = 0; j < 4; j++)
-            tmp[j] = get_bits(&gb, 8);
+            tmp[j] = bitstream_read(&bc, 8);
         for (j = 0; j < 16; j++)
-            s->block_codebook[i][15-j] = tmp[get_bits(&gb, 2)];
+            s->block_codebook[i][15-j] = tmp[bitstream_read(&bc, 2)];
     }
 
-    if (get_bits_left(&gb) < vector_bits *
+    if (bitstream_bits_left(&bc) < vector_bits *
         (s->avctx->height / 4) * (s->avctx->width / 4))
         return AVERROR_INVALIDDATA;
 
     /* read vectors and build frame */
     for (y = 0; y < s->avctx->height / 4; y++)
         for (x = 0; x < s->avctx->width / 4; x++) {
-            unsigned int vector = get_bits(&gb, vector_bits);
+            unsigned int vector = bitstream_read(&bc, vector_bits);
             const uint8_t *src;
-            int src_stride;
+            ptrdiff_t src_stride;
 
             if (vector < num_mvs) {
                 int mx = x * 4 + s->mv_codebook[vector][0];
@@ -355,5 +358,5 @@ AVCodec ff_eatgv_decoder = {
     .init           = tgv_decode_init,
     .close          = tgv_decode_end,
     .decode         = tgv_decode_frame,
-    .capabilities   = CODEC_CAP_DR1,
+    .capabilities   = AV_CODEC_CAP_DR1,
 };