From f8c34f4b8d62afad3f63cf3d9617d73735bef8c1 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Mon, 22 Feb 2016 19:58:19 -0500 Subject: indeo2: Fix banding artefacts Rename luma table to delta table and change how it is used. CC: libav-stable@libav.org Signed-off-by: Vittorio Giovara Signed-off-by: Diego Biurrun --- libavcodec/indeo2data.h | 162 ++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 129 insertions(+), 33 deletions(-) (limited to 'libavcodec/indeo2data.h') diff --git a/libavcodec/indeo2data.h b/libavcodec/indeo2data.h index 0486ea60e2..255f662b1d 100644 --- a/libavcodec/indeo2data.h +++ b/libavcodec/indeo2data.h @@ -103,39 +103,135 @@ static const uint16_t ir2_codes[IR2_CODES][2] = { #endif }; -static const uint8_t ir2_luma_table[256] = { - 0x80, 0x80, 0x84, 0x84, 0x7C, 0x7C, 0x7F, 0x85, - 0x81, 0x7B, 0x85, 0x7F, 0x7B, 0x81, 0x8C, 0x8C, - 0x74, 0x74, 0x83, 0x8D, 0x7D, 0x73, 0x8D, 0x83, - 0x73, 0x7D, 0x77, 0x89, 0x89, 0x77, 0x89, 0x77, - 0x77, 0x89, 0x8C, 0x95, 0x74, 0x6B, 0x95, 0x8C, - 0x6B, 0x74, 0x7C, 0x90, 0x84, 0x70, 0x90, 0x7C, - 0x70, 0x84, 0x96, 0x96, 0x6A, 0x6A, 0x82, 0x98, - 0x7E, 0x68, 0x98, 0x82, 0x68, 0x7E, 0x97, 0xA2, - 0x69, 0x5E, 0xA2, 0x97, 0x5E, 0x69, 0xA2, 0xA2, - 0x5E, 0x5E, 0x8B, 0xA3, 0x75, 0x5D, 0xA3, 0x8B, - 0x5D, 0x75, 0x71, 0x95, 0x8F, 0x6B, 0x95, 0x71, - 0x6B, 0x8F, 0x78, 0x9D, 0x88, 0x63, 0x9D, 0x78, - 0x63, 0x88, 0x7F, 0xA7, 0x81, 0x59, 0xA7, 0x7F, - 0x59, 0x81, 0xA4, 0xB1, 0x5C, 0x4F, 0xB1, 0xA4, - 0x4F, 0x5C, 0x96, 0xB1, 0x6A, 0x4F, 0xB1, 0x96, - 0x4F, 0x6A, 0xB2, 0xB2, 0x4E, 0x4E, 0x65, 0x9B, - 0x9B, 0x65, 0x9B, 0x65, 0x65, 0x9B, 0x89, 0xB4, - 0x77, 0x4C, 0xB4, 0x89, 0x4C, 0x77, 0x6A, 0xA3, - 0x96, 0x5D, 0xA3, 0x6A, 0x5D, 0x96, 0x73, 0xAC, - 0x8D, 0x54, 0xAC, 0x73, 0x54, 0x8D, 0xB4, 0xC3, - 0x4C, 0x3D, 0xC3, 0xB4, 0x3D, 0x4C, 0xA4, 0xC3, - 0x5C, 0x3D, 0xC3, 0xA4, 0x3D, 0x5C, 0xC4, 0xC4, - 0x3C, 0x3C, 0x96, 0xC6, 0x6A, 0x3A, 0xC6, 0x96, - 0x3A, 0x6A, 0x7C, 0xBA, 0x84, 0x46, 0xBA, 0x7C, - 0x46, 0x84, 0x5B, 0xAB, 0xA5, 0x55, 0xAB, 0x5B, - 0x55, 0xA5, 0x63, 0xB4, 0x9D, 0x4C, 0xB4, 0x63, - 0x4C, 0x9D, 0x86, 0xCA, 0x7A, 0x36, 0xCA, 0x86, - 0x36, 0x7A, 0xB6, 0xD7, 0x4A, 0x29, 0xD7, 0xB6, - 0x29, 0x4A, 0xC8, 0xD7, 0x38, 0x29, 0xD7, 0xC8, - 0x29, 0x38, 0xA4, 0xD8, 0x5C, 0x28, 0xD8, 0xA4, - 0x28, 0x5C, 0x6C, 0xC1, 0x94, 0x3F, 0xC1, 0x6C, - 0x3F, 0x94, 0xD9, 0xD9, 0x27, 0x27, 0x80, 0x80, +static const uint8_t ir2_delta_table[4][256] = { + { 0x80, 0x80, 0x84, 0x84, 0x7C, 0x7C, 0x7F, 0x85, + 0x81, 0x7B, 0x85, 0x7F, 0x7B, 0x81, 0x8C, 0x8C, + 0x74, 0x74, 0x83, 0x8D, 0x7D, 0x73, 0x8D, 0x83, + 0x73, 0x7D, 0x77, 0x89, 0x89, 0x77, 0x89, 0x77, + 0x77, 0x89, 0x8C, 0x95, 0x74, 0x6B, 0x95, 0x8C, + 0x6B, 0x74, 0x7C, 0x90, 0x84, 0x70, 0x90, 0x7C, + 0x70, 0x84, 0x96, 0x96, 0x6A, 0x6A, 0x82, 0x98, + 0x7E, 0x68, 0x98, 0x82, 0x68, 0x7E, 0x97, 0xA2, + 0x69, 0x5E, 0xA2, 0x97, 0x5E, 0x69, 0xA2, 0xA2, + 0x5E, 0x5E, 0x8B, 0xA3, 0x75, 0x5D, 0xA3, 0x8B, + 0x5D, 0x75, 0x71, 0x95, 0x8F, 0x6B, 0x95, 0x71, + 0x6B, 0x8F, 0x78, 0x9D, 0x88, 0x63, 0x9D, 0x78, + 0x63, 0x88, 0x7F, 0xA7, 0x81, 0x59, 0xA7, 0x7F, + 0x59, 0x81, 0xA4, 0xB1, 0x5C, 0x4F, 0xB1, 0xA4, + 0x4F, 0x5C, 0x96, 0xB1, 0x6A, 0x4F, 0xB1, 0x96, + 0x4F, 0x6A, 0xB2, 0xB2, 0x4E, 0x4E, 0x65, 0x9B, + 0x9B, 0x65, 0x9B, 0x65, 0x65, 0x9B, 0x89, 0xB4, + 0x77, 0x4C, 0xB4, 0x89, 0x4C, 0x77, 0x6A, 0xA3, + 0x96, 0x5D, 0xA3, 0x6A, 0x5D, 0x96, 0x73, 0xAC, + 0x8D, 0x54, 0xAC, 0x73, 0x54, 0x8D, 0xB4, 0xC3, + 0x4C, 0x3D, 0xC3, 0xB4, 0x3D, 0x4C, 0xA4, 0xC3, + 0x5C, 0x3D, 0xC3, 0xA4, 0x3D, 0x5C, 0xC4, 0xC4, + 0x3C, 0x3C, 0x96, 0xC6, 0x6A, 0x3A, 0xC6, 0x96, + 0x3A, 0x6A, 0x7C, 0xBA, 0x84, 0x46, 0xBA, 0x7C, + 0x46, 0x84, 0x5B, 0xAB, 0xA5, 0x55, 0xAB, 0x5B, + 0x55, 0xA5, 0x63, 0xB4, 0x9D, 0x4C, 0xB4, 0x63, + 0x4C, 0x9D, 0x86, 0xCA, 0x7A, 0x36, 0xCA, 0x86, + 0x36, 0x7A, 0xB6, 0xD7, 0x4A, 0x29, 0xD7, 0xB6, + 0x29, 0x4A, 0xC8, 0xD7, 0x38, 0x29, 0xD7, 0xC8, + 0x29, 0x38, 0xA4, 0xD8, 0x5C, 0x28, 0xD8, 0xA4, + 0x28, 0x5C, 0x6C, 0xC1, 0x94, 0x3F, 0xC1, 0x6C, + 0x3F, 0x94, 0xD9, 0xD9, 0x27, 0x27, 0x80, 0x80, }, + { 0x80, 0x80, 0x85, 0x85, 0x7B, 0x7B, 0x7E, 0x87, + 0x82, 0x79, 0x87, 0x7E, 0x79, 0x82, 0x8F, 0x8F, + 0x71, 0x71, 0x84, 0x8F, 0x7C, 0x71, 0x8F, 0x84, + 0x71, 0x7C, 0x75, 0x8B, 0x8B, 0x75, 0x8B, 0x75, + 0x75, 0x8B, 0x8E, 0x9A, 0x72, 0x66, 0x9A, 0x8E, + 0x66, 0x72, 0x7B, 0x93, 0x85, 0x6D, 0x93, 0x7B, + 0x6D, 0x85, 0x9B, 0x9B, 0x65, 0x65, 0x82, 0x9D, + 0x7E, 0x63, 0x9D, 0x82, 0x63, 0x7E, 0x9B, 0xA8, + 0x65, 0x58, 0xA8, 0x9B, 0x58, 0x65, 0xA9, 0xA9, + 0x57, 0x57, 0x8D, 0xAA, 0x73, 0x56, 0xAA, 0x8D, + 0x56, 0x73, 0x6E, 0x99, 0x92, 0x67, 0x99, 0x6E, + 0x67, 0x92, 0x76, 0xA2, 0x8A, 0x5E, 0xA2, 0x76, + 0x5E, 0x8A, 0x7F, 0xAF, 0x81, 0x51, 0xAF, 0x7F, + 0x51, 0x81, 0xAB, 0xBA, 0x55, 0x46, 0xBA, 0xAB, + 0x46, 0x55, 0x9A, 0xBB, 0x66, 0x45, 0xBB, 0x9A, + 0x45, 0x66, 0xBB, 0xBB, 0x45, 0x45, 0x60, 0xA0, + 0xA0, 0x60, 0xA0, 0x60, 0x60, 0xA0, 0x8B, 0xBE, + 0x75, 0x42, 0xBE, 0x8B, 0x42, 0x75, 0x66, 0xAA, + 0x9A, 0x56, 0xAA, 0x66, 0x56, 0x9A, 0x70, 0xB5, + 0x90, 0x4B, 0xB5, 0x70, 0x4B, 0x90, 0xBE, 0xCF, + 0x42, 0x31, 0xCF, 0xBE, 0x31, 0x42, 0xAB, 0xD0, + 0x55, 0x30, 0xD0, 0xAB, 0x30, 0x55, 0xD1, 0xD1, + 0x2F, 0x2F, 0x9A, 0xD3, 0x66, 0x2D, 0xD3, 0x9A, + 0x2D, 0x66, 0x7B, 0xC5, 0x85, 0x3B, 0xC5, 0x7B, + 0x3B, 0x85, 0x54, 0xB4, 0xAC, 0x4C, 0xB4, 0x54, + 0x4C, 0xAC, 0x5E, 0xBE, 0xA2, 0x42, 0xBE, 0x5E, + 0x42, 0xA2, 0x87, 0xD8, 0x79, 0x28, 0xD8, 0x87, + 0x28, 0x79, 0xC0, 0xE8, 0x40, 0x18, 0xE8, 0xC0, + 0x18, 0x40, 0xD5, 0xE8, 0x2B, 0x18, 0xE8, 0xD5, + 0x18, 0x2B, 0xAB, 0xE9, 0x55, 0x17, 0xE9, 0xAB, + 0x17, 0x55, 0x68, 0xCD, 0x98, 0x33, 0xCD, 0x68, + 0x33, 0x98, 0xEA, 0xEA, 0x16, 0x16, 0x80, 0x80, }, + { 0x80, 0x80, 0x86, 0x86, 0x7A, 0x7A, 0x7E, 0x88, + 0x82, 0x78, 0x88, 0x7E, 0x78, 0x82, 0x92, 0x92, + 0x6E, 0x6E, 0x85, 0x92, 0x7B, 0x6E, 0x92, 0x85, + 0x6E, 0x7B, 0x73, 0x8D, 0x8D, 0x73, 0x8D, 0x73, + 0x73, 0x8D, 0x91, 0x9E, 0x6F, 0x62, 0x9E, 0x91, + 0x62, 0x6F, 0x79, 0x97, 0x87, 0x69, 0x97, 0x79, + 0x69, 0x87, 0xA0, 0xA0, 0x60, 0x60, 0x83, 0xA2, + 0x7D, 0x5E, 0xA2, 0x83, 0x5E, 0x7D, 0xA0, 0xB0, + 0x60, 0x50, 0xB0, 0xA0, 0x50, 0x60, 0xB1, 0xB1, + 0x4F, 0x4F, 0x8F, 0xB2, 0x71, 0x4E, 0xB2, 0x8F, + 0x4E, 0x71, 0x6B, 0x9E, 0x95, 0x62, 0x9E, 0x6B, + 0x62, 0x95, 0x74, 0xA9, 0x8C, 0x57, 0xA9, 0x74, + 0x57, 0x8C, 0x7F, 0xB8, 0x81, 0x48, 0xB8, 0x7F, + 0x48, 0x81, 0xB4, 0xC5, 0x4C, 0x3B, 0xC5, 0xB4, + 0x3B, 0x4C, 0x9F, 0xC6, 0x61, 0x3A, 0xC6, 0x9F, + 0x3A, 0x61, 0xC6, 0xC6, 0x3A, 0x3A, 0x59, 0xA7, + 0xA7, 0x59, 0xA7, 0x59, 0x59, 0xA7, 0x8D, 0xCA, + 0x73, 0x36, 0xCA, 0x8D, 0x36, 0x73, 0x61, 0xB2, + 0x9F, 0x4E, 0xB2, 0x61, 0x4E, 0x9F, 0x6D, 0xBF, + 0x93, 0x41, 0xBF, 0x6D, 0x41, 0x93, 0xCA, 0xDF, + 0x36, 0x21, 0xDF, 0xCA, 0x21, 0x36, 0xB3, 0xDF, + 0x4D, 0x21, 0xDF, 0xB3, 0x21, 0x4D, 0xE1, 0xE1, + 0x1F, 0x1F, 0x9F, 0xE3, 0x61, 0x1D, 0xE3, 0x9F, + 0x1D, 0x61, 0x7A, 0xD3, 0x86, 0x2D, 0xD3, 0x7A, + 0x2D, 0x86, 0x4C, 0xBE, 0xB4, 0x42, 0xBE, 0x4C, + 0x42, 0xB4, 0x57, 0xCA, 0xA9, 0x36, 0xCA, 0x57, + 0x36, 0xA9, 0x88, 0xE9, 0x78, 0x17, 0xE9, 0x88, + 0x17, 0x78, 0xCC, 0xFB, 0x34, 0x05, 0xFB, 0xCC, + 0x05, 0x34, 0xE6, 0xFB, 0x1A, 0x05, 0xFB, 0xE6, + 0x05, 0x1A, 0xB4, 0xFD, 0x4C, 0x03, 0xFD, 0xB4, + 0x03, 0x4C, 0x63, 0xDC, 0x9D, 0x24, 0xDC, 0x63, + 0x24, 0x9D, 0xFE, 0xFE, 0x02, 0x02, 0x80, 0x80, }, + { 0x80, 0x80, 0x87, 0x87, 0x79, 0x79, 0x7E, 0x89, + 0x82, 0x77, 0x89, 0x7E, 0x77, 0x82, 0x95, 0x95, + 0x6B, 0x6B, 0x86, 0x96, 0x7A, 0x6A, 0x96, 0x86, + 0x6A, 0x7A, 0x70, 0x90, 0x90, 0x70, 0x90, 0x70, + 0x70, 0x90, 0x94, 0xA4, 0x6C, 0x5C, 0xA4, 0x94, + 0x5C, 0x6C, 0x78, 0x9B, 0x88, 0x65, 0x9B, 0x78, + 0x65, 0x88, 0xA6, 0xA6, 0x5A, 0x5A, 0x83, 0xA9, + 0x7D, 0x57, 0xA9, 0x83, 0x57, 0x7D, 0xA6, 0xB9, + 0x5A, 0x47, 0xB9, 0xA6, 0x47, 0x5A, 0xBA, 0xBA, + 0x46, 0x46, 0x92, 0xBC, 0x6E, 0x44, 0xBC, 0x92, + 0x44, 0x6E, 0x67, 0xA3, 0x99, 0x5D, 0xA3, 0x67, + 0x5D, 0x99, 0x72, 0xB0, 0x8E, 0x50, 0xB0, 0x72, + 0x50, 0x8E, 0x7F, 0xC3, 0x81, 0x3D, 0xC3, 0x7F, + 0x3D, 0x81, 0xBE, 0xD2, 0x42, 0x2E, 0xD2, 0xBE, + 0x2E, 0x42, 0xA5, 0xD4, 0x5B, 0x2C, 0xD4, 0xA5, + 0x2C, 0x5B, 0xD4, 0xD4, 0x2C, 0x2C, 0x52, 0xAE, + 0xAE, 0x52, 0xAE, 0x52, 0x52, 0xAE, 0x8F, 0xD8, + 0x71, 0x28, 0xD8, 0x8F, 0x28, 0x71, 0x5B, 0xBB, + 0xA5, 0x45, 0xBB, 0x5B, 0x45, 0xA5, 0x69, 0xCB, + 0x97, 0x35, 0xCB, 0x69, 0x35, 0x97, 0xD8, 0xF0, + 0x28, 0x10, 0xF0, 0xD8, 0x10, 0x28, 0xBD, 0xF1, + 0x43, 0x0F, 0xF1, 0xBD, 0x0F, 0x43, 0xF3, 0xF3, + 0x0D, 0x0D, 0xA5, 0xF6, 0x5B, 0x0A, 0xF6, 0xA5, + 0x0A, 0x5B, 0x78, 0xE2, 0x88, 0x1E, 0xE2, 0x78, + 0x1E, 0x88, 0x42, 0xC9, 0xBE, 0x37, 0xC9, 0x42, + 0x37, 0xBE, 0x4F, 0xD8, 0xB1, 0x28, 0xD8, 0x4F, + 0x28, 0xB1, 0x8A, 0xFD, 0x76, 0x03, 0xFD, 0x8A, + 0x03, 0x76, 0xDB, 0xFF, 0x25, 0x01, 0xFF, 0xDB, + 0x01, 0x25, 0xF9, 0xFF, 0x07, 0x01, 0xFF, 0xF9, + 0x01, 0x07, 0xBE, 0xFF, 0x42, 0x01, 0xFF, 0xBE, + 0x01, 0x42, 0x5E, 0xED, 0xA2, 0x13, 0xED, 0x5E, + 0x13, 0xA2, 0xFF, 0xFF, 0x01, 0x01, 0x80, 0x80, }, }; #endif /* AVCODEC_INDEO2DATA_H */ -- cgit v1.2.3