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author | Vitor Sessak <vitor1001@gmail.com> | 2010-03-21 11:36:17 +0000 |
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committer | Vitor Sessak <vitor1001@gmail.com> | 2010-03-21 11:36:17 +0000 |
commit | b531e1ab5938978a9ba4a6a62da6f8a9dd9f193b (patch) | |
tree | 0e43a952274c530eeb5fff3112071f7a81a87669 /libavcodec/dct.c | |
parent | 8305c76b53d8af602fd5172a5e0ab95cd8ded566 (diff) | |
download | ffmpeg-b531e1ab5938978a9ba4a6a62da6f8a9dd9f193b.tar.gz |
Reindent after r22618.
Originally committed as revision 22619 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dct.c')
-rw-r--r-- | libavcodec/dct.c | 85 |
1 files changed, 43 insertions, 42 deletions
diff --git a/libavcodec/dct.c b/libavcodec/dct.c index c7f5f7e180..537601b2e9 100644 --- a/libavcodec/dct.c +++ b/libavcodec/dct.c @@ -42,68 +42,69 @@ static void ff_dct_calc_III_c(DCTContext *ctx, FFTSample *data) int n = 1 << ctx->nbits; int i; - float next = data[n - 1]; - float inv_n = 1.0f / n; + float next = data[n - 1]; + float inv_n = 1.0f / n; - for (i = n - 2; i >= 2; i -= 2) { - float val1 = data[i ]; - float val2 = data[i - 1] - data[i + 1]; - float c = COS(ctx, n, i); - float s = SIN(ctx, n, i); + for (i = n - 2; i >= 2; i -= 2) { + float val1 = data[i ]; + float val2 = data[i - 1] - data[i + 1]; + float c = COS(ctx, n, i); + float s = SIN(ctx, n, i); - data[i ] = c * val1 + s * val2; - data[i + 1] = s * val1 - c * val2; - } + data[i ] = c * val1 + s * val2; + data[i + 1] = s * val1 - c * val2; + } - data[1] = 2 * next; + data[1] = 2 * next; - ff_rdft_calc(&ctx->rdft, data); + ff_rdft_calc(&ctx->rdft, data); - for (i = 0; i < n / 2; i++) { - float tmp1 = data[i ] * inv_n; - float tmp2 = data[n - i - 1] * inv_n; - float csc = ctx->csc2[i] * (tmp1 - tmp2); + for (i = 0; i < n / 2; i++) { + float tmp1 = data[i ] * inv_n; + float tmp2 = data[n - i - 1] * inv_n; + float csc = ctx->csc2[i] * (tmp1 - tmp2); - tmp1 += tmp2; - data[i ] = tmp1 + csc; - data[n - i - 1] = tmp1 - csc; - } + tmp1 += tmp2; + data[i ] = tmp1 + csc; + data[n - i - 1] = tmp1 - csc; + } } static void ff_dct_calc_II_c(DCTContext *ctx, FFTSample *data) { int n = 1 << ctx->nbits; int i; - float next; - for (i=0; i < n/2; i++) { - float tmp1 = data[i ]; - float tmp2 = data[n - i - 1]; - float s = SIN(ctx, n, 2*i + 1); + float next; - s *= tmp1 - tmp2; - tmp1 = (tmp1 + tmp2) * 0.5f; + for (i=0; i < n/2; i++) { + float tmp1 = data[i ]; + float tmp2 = data[n - i - 1]; + float s = SIN(ctx, n, 2*i + 1); - data[i ] = tmp1 + s; - data[n-i-1] = tmp1 - s; - } + s *= tmp1 - tmp2; + tmp1 = (tmp1 + tmp2) * 0.5f; - ff_rdft_calc(&ctx->rdft, data); + data[i ] = tmp1 + s; + data[n-i-1] = tmp1 - s; + } - next = data[1] * 0.5; - data[1] *= -1; + ff_rdft_calc(&ctx->rdft, data); - for (i = n - 2; i >= 0; i -= 2) { - float inr = data[i ]; - float ini = data[i + 1]; - float c = COS(ctx, n, i); - float s = SIN(ctx, n, i); + next = data[1] * 0.5; + data[1] *= -1; - data[i ] = c * inr + s * ini; + for (i = n - 2; i >= 0; i -= 2) { + float inr = data[i ]; + float ini = data[i + 1]; + float c = COS(ctx, n, i); + float s = SIN(ctx, n, i); - data[i+1] = next; + data[i ] = c * inr + s * ini; - next += s * inr - c * ini; - } + data[i+1] = next; + + next += s * inr - c * ini; + } } void ff_dct_calc(DCTContext *s, FFTSample *data) |