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Code Issues Releases Activity

Make ipvideo_decode_block array constant, compile-time initialized instead

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of initializing it each time the decoder is initialized.

Originally committed as revision 18219 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-03-29 17:15:42 +00:00
parent 4b086e7f21
commit fff6077917
1 changed files with 10 additions and 19 deletions
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29
libavcodec/interplayvideo.c
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@ -778,7 +778,16 @@ static int ipvideo_decode_block_opcode_0xF(IpvideoContext *s)
return 0;
}
static int (*ipvideo_decode_block[16])(IpvideoContext *s);
static int (* const ipvideo_decode_block[])(IpvideoContext *s) = {
ipvideo_decode_block_opcode_0x0, ipvideo_decode_block_opcode_0x1,
ipvideo_decode_block_opcode_0x2, ipvideo_decode_block_opcode_0x3,
ipvideo_decode_block_opcode_0x4, ipvideo_decode_block_opcode_0x5,
ipvideo_decode_block_opcode_0x6, ipvideo_decode_block_opcode_0x7,
ipvideo_decode_block_opcode_0x8, ipvideo_decode_block_opcode_0x9,
ipvideo_decode_block_opcode_0xA, ipvideo_decode_block_opcode_0xB,
ipvideo_decode_block_opcode_0xC, ipvideo_decode_block_opcode_0xD,
ipvideo_decode_block_opcode_0xE, ipvideo_decode_block_opcode_0xF,
};
static void ipvideo_decode_opcodes(IpvideoContext *s)
{
@ -852,24 +861,6 @@ static av_cold int ipvideo_decode_init(AVCodecContext *avctx)
/* decoding map contains 4 bits of information per 8x8 block */
s->decoding_map_size = avctx->width * avctx->height / (8 * 8 * 2);
/* assign block decode functions */
ipvideo_decode_block[0x0] = ipvideo_decode_block_opcode_0x0;
ipvideo_decode_block[0x1] = ipvideo_decode_block_opcode_0x1;
ipvideo_decode_block[0x2] = ipvideo_decode_block_opcode_0x2;
ipvideo_decode_block[0x3] = ipvideo_decode_block_opcode_0x3;
ipvideo_decode_block[0x4] = ipvideo_decode_block_opcode_0x4;
ipvideo_decode_block[0x5] = ipvideo_decode_block_opcode_0x5;
ipvideo_decode_block[0x6] = ipvideo_decode_block_opcode_0x6;
ipvideo_decode_block[0x7] = ipvideo_decode_block_opcode_0x7;
ipvideo_decode_block[0x8] = ipvideo_decode_block_opcode_0x8;
ipvideo_decode_block[0x9] = ipvideo_decode_block_opcode_0x9;
ipvideo_decode_block[0xA] = ipvideo_decode_block_opcode_0xA;
ipvideo_decode_block[0xB] = ipvideo_decode_block_opcode_0xB;
ipvideo_decode_block[0xC] = ipvideo_decode_block_opcode_0xC;
ipvideo_decode_block[0xD] = ipvideo_decode_block_opcode_0xD;
ipvideo_decode_block[0xE] = ipvideo_decode_block_opcode_0xE;
ipvideo_decode_block[0xF] = ipvideo_decode_block_opcode_0xF;
s->current_frame.data[0] = s->last_frame.data[0] =
s->second_last_frame.data[0] = NULL;