*/
/**
- * @file truemotion1.c
+ * @file libavcodec/truemotion1.c
* Duck TrueMotion v1 Video Decoder by
* Alex Beregszaszi and
* Mike Melanson (melanson@pcisys.net)
const uint8_t *mb_change_bits;
int mb_change_bits_row_size;
- uint8_t *index_stream;
+ const uint8_t *index_stream;
int index_stream_size;
int flags;
} comp_types;
/* { valid for metatype }, algorithm, num of deltas, vert res, horiz res */
-static comp_types compression_types[17] = {
+static const comp_types compression_types[17] = {
{ ALGO_NOP, 0, 0, 0 },
{ ALGO_RGB16V, 4, 4, BLOCK_4x4 },
lo += (lo << 5) + (lo << 10);
hi = ydt[p2];
hi += (hi << 5) + (hi << 10);
- return ((lo + (hi << 16)) << 1);
+ return (lo + (hi << 16)) << 1;
}
#ifdef WORDS_BIGENDIAN
b = cdt[p2];
r = cdt[p1] << 10;
lo = b + r;
- return ((lo + (lo << 16)) << 1);
+ return (lo + (lo << 16)) << 1;
}
#ifdef WORDS_BIGENDIAN
lo += (lo << 6) + (lo << 11);
hi = ydt[p2];
hi += (hi << 6) + (hi << 11);
- return ((lo + (hi << 16)) << 1);
+ return (lo + (hi << 16)) << 1;
}
#ifdef WORDS_BIGENDIAN
b = cdt[p2];
r = cdt[p1] << 11;
lo = b + r;
- return ((lo + (lo << 16)) << 1);
+ return (lo + (lo << 16)) << 1;
}
#ifdef WORDS_BIGENDIAN
lo = ydt[p1];
hi = ydt[p2];
- return ((lo + (hi << 8) + (hi << 16)) << 1);
+ return (lo + (hi << 8) + (hi << 16)) << 1;
}
#ifdef WORDS_BIGENDIAN
b = cdt[p2];
r = cdt[p1]<<16;
- return ((b+r) << 1);
+ return (b+r) << 1;
}
static void gen_vector_table15(TrueMotion1Context *s, const uint8_t *sel_vector_table)
}
}
- if (header.compression > 17) {
+ if (header.compression >= 17) {
av_log(s->avctx, AV_LOG_ERROR, "invalid compression type (%d)\n", header.compression);
return -1;
}
return header.header_size;
}
-static int truemotion1_decode_init(AVCodecContext *avctx)
+static av_cold int truemotion1_decode_init(AVCodecContext *avctx)
{
TrueMotion1Context *s = avctx->priv_data;
int keyframe = s->flags & FLAG_KEYFRAME;
/* these variables are for managing the stream of macroblock change bits */
- unsigned char *mb_change_bits = s->mb_change_bits;
+ const unsigned char *mb_change_bits = s->mb_change_bits;
unsigned char mb_change_byte;
unsigned char mb_change_byte_mask;
int mb_change_index;
int keyframe = s->flags & FLAG_KEYFRAME;
/* these variables are for managing the stream of macroblock change bits */
- unsigned char *mb_change_bits = s->mb_change_bits;
+ const unsigned char *mb_change_bits = s->mb_change_bits;
unsigned char mb_change_byte;
unsigned char mb_change_byte_mask;
int mb_change_index;
return buf_size;
}
-static int truemotion1_decode_end(AVCodecContext *avctx)
+static av_cold int truemotion1_decode_end(AVCodecContext *avctx)
{
TrueMotion1Context *s = avctx->priv_data;
truemotion1_decode_end,
truemotion1_decode_frame,
CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Duck TrueMotion 1.0"),
};