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| author | Peter Ross <pross@xvid.org> | 2022-10-26 20:11:21 +1100 |
|---|---|---|
| committer | Peter Ross <pross@xvid.org> | 2022-10-26 20:30:25 +1100 |
| commit | 58bd7d97a47da1065e2616d396938609b50ad1e4 (patch) | |
| tree | 47b73bf18a25c15ed84eeb667f31fffa63a12497 /libavcodec/agm.c | |
| parent | 9bed814e1d44e8374e9a4901e3f9b00ded0716fb (diff) | |
| download | ffmpeg-58bd7d97a47da1065e2616d396938609b50ad1e4.tar.gz | |
avcodec/jpegtables: remove duplicate luma and chroma quantization tables
Duplicates of the standard JPEG quantization tables were found in the
AGM, MSS34(dsp), NUV and VP31 codecs. This patch elimates those duplicates,
placing a single copy in jpegquanttables.c.
Diffstat (limited to 'libavcodec/agm.c')
| -rw-r--r-- | libavcodec/agm.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/libavcodec/agm.c b/libavcodec/agm.c index 374e4f4ef2..b37f1a42c9 100644 --- a/libavcodec/agm.c +++ b/libavcodec/agm.c @@ -33,24 +33,7 @@ #include "decode.h" #include "get_bits.h" #include "idctdsp.h" - -static const uint8_t unscaled_luma[64] = { - 16, 11, 10, 16, 24, 40, 51, 61, 12, 12, 14, 19, - 26, 58, 60, 55, 14, 13, 16, 24, 40, 57, 69, 56, - 14, 17, 22, 29, 51, 87, 80, 62, 18, 22, 37, 56, - 68,109,103, 77, 24, 35, 55, 64, 81,104,113, 92, - 49, 64, 78, 87,103,121,120,101, 72, 92, 95, 98, - 112,100,103,99 -}; - -static const uint8_t unscaled_chroma[64] = { - 17, 18, 24, 47, 99, 99, 99, 99, 18, 21, 26, 66, - 99, 99, 99, 99, 24, 26, 56, 99, 99, 99, 99, 99, - 47, 66, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99 -}; +#include "jpegquanttables.h" typedef struct MotionVector { int16_t x, y; @@ -550,13 +533,13 @@ static void compute_quant_matrix(AGMContext *s, double qscale) } else { if (qscale >= 0.0) { for (int i = 0; i < 64; i++) { - luma[i] = FFMAX(1, unscaled_luma [(i & 7) * 8 + (i >> 3)] * f); - chroma[i] = FFMAX(1, unscaled_chroma[(i & 7) * 8 + (i >> 3)] * f); + luma[i] = FFMAX(1, ff_mjpeg_std_luminance_quant_tbl [(i & 7) * 8 + (i >> 3)] * f); + chroma[i] = FFMAX(1, ff_mjpeg_std_chrominance_quant_tbl[(i & 7) * 8 + (i >> 3)] * f); } } else { for (int i = 0; i < 64; i++) { - luma[i] = FFMAX(1, 255.0 - (255 - unscaled_luma [(i & 7) * 8 + (i >> 3)]) * f); - chroma[i] = FFMAX(1, 255.0 - (255 - unscaled_chroma[(i & 7) * 8 + (i >> 3)]) * f); + luma[i] = FFMAX(1, 255.0 - (255 - ff_mjpeg_std_luminance_quant_tbl [(i & 7) * 8 + (i >> 3)]) * f); + chroma[i] = FFMAX(1, 255.0 - (255 - ff_mjpeg_std_chrominance_quant_tbl[(i & 7) * 8 + (i >> 3)]) * f); } } } |