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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-01-30 16:39:35 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-03-14 04:57:44 +0100 |
| commit | e44f89371c3af7e881d7795d3c7e58b68348d421 (patch) | |
| tree | 6c55bc3b75d98da4a04eaaaa1caeb5248488d28f | |
| parent | e586e4d93bfb66ccfcfa9c2aa48649f85470b6a1 (diff) | |
| download | ffmpeg-e44f89371c3af7e881d7795d3c7e58b68348d421.tar.gz | |
msrledec: move loop into switch
speeds up code and allows more simplifications
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dbaae33c2c71862b8eaea978ed6dccc5ec03db89)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/msrledec.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/libavcodec/msrledec.c b/libavcodec/msrledec.c index 44371f0a1f..e46b99bfbf 100644 --- a/libavcodec/msrledec.c +++ b/libavcodec/msrledec.c @@ -218,21 +218,30 @@ static int msrle_decode_8_16_24_32(AVCodecContext *avctx, AVPicture *pic, case 32: pix32 = bytestream2_get_le32(gb); break; } - for(i = 0; i < p1; i++) { - switch(depth){ - case 8: *output++ = pix[0]; - break; - case 16: *(uint16_t*)output = pix16; - output += 2; - break; - case 24: *output++ = pix[0]; - *output++ = pix[1]; - *output++ = pix[2]; - break; - case 32: *(uint32_t*)output = pix32; - output += 4; - break; + switch(depth){ + case 8: + for(i = 0; i < p1; i++) + *output++ = pix[0]; + break; + case 16: + for(i = 0; i < p1; i++) { + *(uint16_t*)output = pix16; + output += 2; + } + break; + case 24: + for(i = 0; i < p1; i++) { + *output++ = pix[0]; + *output++ = pix[1]; + *output++ = pix[2]; + } + break; + case 32: + for(i = 0; i < p1; i++) { + *(uint32_t*)output = pix32; + output += 4; } + break; } pos += p1; } |