/* * Copyright (c) 2014 Intel Corporation. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* * This file is a utilities file which supports JPEG Encode process */ #include #include #define MAX_JPEG_COMPONENTS 3 //only for Y, U and V #define JPEG_Y 0 #define JPEG_U 1 #define JPEG_V 2 #define NUM_QUANT_ELEMENTS 64 #define NUM_MAX_HUFFTABLE 2 #define NUM_AC_RUN_SIZE_BITS 16 #define NUM_AC_CODE_WORDS_HUFFVAL 162 #define NUM_DC_RUN_SIZE_BITS 16 #define NUM_DC_CODE_WORDS_HUFFVAL 12 #define BITSTREAM_ALLOCATE_STEPPING 4096 struct __bitstream { unsigned int *buffer; int bit_offset; int max_size_in_dword; }; typedef struct __bitstream bitstream; static unsigned int swap32(unsigned int val) { unsigned char *pval = (unsigned char *)&val; return ((pval[0] << 24) | (pval[1] << 16) | (pval[2] << 8) | (pval[3] << 0)); } static void bitstream_start(bitstream *bs) { bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING; bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1); assert(bs->buffer); bs->bit_offset = 0; } static void bitstream_end(bitstream *bs) { int pos = (bs->bit_offset >> 5); int bit_offset = (bs->bit_offset & 0x1f); int bit_left = 32 - bit_offset; if (bit_offset) { bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left)); } } static void bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits) { int pos = (bs->bit_offset >> 5); int bit_offset = (bs->bit_offset & 0x1f); int bit_left = 32 - bit_offset; if (!size_in_bits) return; if (size_in_bits < 32) val &= ((1 << size_in_bits) - 1); bs->bit_offset += size_in_bits; if (bit_left > size_in_bits) { bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val); } else { size_in_bits -= bit_left; bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits); bs->buffer[pos] = swap32(bs->buffer[pos]); if (pos + 1 == bs->max_size_in_dword) { bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING; bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int)); assert(bs->buffer); } bs->buffer[pos + 1] = val; } } //As per Jpeg Spec ISO/IEC 10918-1, below values are assigned enum jpeg_markers { //Define JPEG markers as 0xFFXX if you are adding the value directly to the buffer //Else define marker as 0xXXFF if you are assigning the marker to a structure variable. //This is needed because of the little-endedness of the IA SOI = 0xFFD8, //Start of Image EOI = 0xFFD9, //End of Image SOS = 0xFFDA, //Start of Scan DQT = 0xFFDB, //Define Quantization Table DRI = 0xFFDD, //Define restart interval RST0 = 0xFFD0, //Restart interval termination DHT = 0xFFC4, //Huffman table SOF0 = 0xFFC0, //Baseline DCT APP0 = 0xFFE0, //Application Segment COM = 0xFFFE //Comment segment }; typedef struct _JPEGFrameHeader { uint16_t SOF; //Start of Frame Header uint16_t Lf; //Length of Frame Header uint8_t P; //Sample precision uint16_t Y; //Number of lines uint16_t X; //Number of samples per line uint8_t Nf; //Number of image components in frame struct _JPEGComponent { uint8_t Ci; //Component identifier uint8_t Hi: 4; //Horizontal sampling factor uint8_t Vi: 4; //Vertical sampling factor uint8_t Tqi; //Quantization table destination selector } JPEGComponent[MAX_JPEG_COMPONENTS]; } JPEGFrameHeader; typedef struct _JPEGScanHeader { uint16_t SOS; //Start of Scan uint16_t Ls; //Length of Scan uint8_t Ns; //Number of image components in the scan struct _ScanComponent { uint8_t Csj; //Scan component selector uint8_t Tdj: 4; //DC Entropy coding table destination selector(Tdj:4 bits) uint8_t Taj: 4; //AC Entropy coding table destination selector(Taj:4 bits) } ScanComponent[MAX_JPEG_COMPONENTS]; uint8_t Ss; //Start of spectral or predictor selection, 0 for Baseline uint8_t Se; //End of spectral or predictor selection, 63 for Baseline uint8_t Ah: 4; //Successive approximation bit position high, 0 for Baseline uint8_t Al: 4; //Successive approximation bit position low, 0 for Baseline } JPEGScanHeader; typedef struct _JPEGQuantSection { uint16_t DQT; //Quantization table marker uint16_t Lq; //Length of Quantization table definition uint8_t Tq: 4; //Quantization table destination identifier uint8_t Pq: 4; //Quatization table precision. Should be 0 for 8-bit samples uint8_t Qk[NUM_QUANT_ELEMENTS]; //Quantization table elements } JPEGQuantSection; typedef struct _JPEGHuffSection { uint16_t DHT; //Huffman table marker uint16_t Lh; //Huffman table definition length uint8_t Tc: 4; //Table class- 0:DC, 1:AC uint8_t Th: 4; //Huffman table destination identifier uint8_t Li[NUM_AC_RUN_SIZE_BITS]; //Number of Huffman codes of length i uint8_t Vij[NUM_AC_CODE_WORDS_HUFFVAL]; //Value associated with each Huffman code } JPEGHuffSection; typedef struct _JPEGRestartSection { uint16_t DRI; //Restart interval marker uint16_t Lr; //Legth of restart interval segment uint16_t Ri; //Restart interval } JPEGRestartSection; typedef struct _JPEGCommentSection { uint16_t COM; //Comment marker uint16_t Lc; //Comment segment length uint8_t Cmi; //Comment byte } JPEGCommentSection; typedef struct _JPEGAppSection { uint16_t APPn; //Application data marker uint16_t Lp; //Application data segment length uint8_t Api; //Application data byte } JPEGAppSection; //Luminance quantization table //Source: Jpeg Spec ISO/IEC 10918-1, Annex K, Table K.1 uint8_t jpeg_luma_quant[NUM_QUANT_ELEMENTS] = { 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 }; //Luminance quantization table //Source: Jpeg Spec ISO/IEC 10918-1, Annex K, Table K.2 uint8_t jpeg_chroma_quant[NUM_QUANT_ELEMENTS] = { 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 }; //Zigzag scan order of the the Luma and Chroma components //Note: Jpeg Spec ISO/IEC 10918-1, Figure A.6 shows the zigzag order differently. //The Spec is trying to show the zigzag pattern with number positions. The below //table will use the patter shown by A.6 and map the postion of the elements in the array uint8_t jpeg_zigzag[] = { 0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63 }; //Huffman table for Luminance DC Coefficients //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.1 //K.3.3.1 is the summarized version of Table K.3 uint8_t jpeg_hufftable_luma_dc[] = { //TcTh (Tc=0 since 0:DC, 1:AC; Th=0) 0x00, //Li 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //Vi 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B }; //Huffman table for Chrominance DC Coefficients //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.1 //K.3.3.1 is the summarized version of Table K.4 uint8_t jpeg_hufftable_chroma_dc[] = { //TcTh (Tc=0 since 0:DC, 1:AC; Th=1) 0x01, //Li 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, //Vi 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B }; //Huffman table for Luminance AC Coefficients //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.2 //K.3.3.2 is the summarized version of Table K.5 uint8_t jpeg_hufftable_luma_ac[] = { //TcTh (Tc=1 since 0:DC, 1:AC; Th=0) 0x10, //Li 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, //Vi 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA }; //Huffman table for Chrominance AC Coefficients //Reference Jpeg Spec ISO/IEC 10918-1, K.3.3.2 //K.3.3.2 is the summarized version of Table K.6 uint8_t jpeg_hufftable_chroma_ac[] = { //TcTh (Tc=1 since 0:DC, 1:AC; Th=1) 0x11, //Li 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, //Vi 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA }; typedef struct _YUVComponentSpecs { //One of 0(I420)/1(NV12)/2(UYVY)/3(YUY2)/4(Y8)/5(RGBA)> unsigned int yuv_type; // One of VA_RT_FORMAT_YUV420, VA_RT_FORMAT_YUV422, VA_RT_FORMAT_YUV400, VA_RT_FORMAT_YUV444, VA_RT_FORMAT_RGB32 unsigned int va_surface_format; //One of VA_FOURCC_I420, VA_FOURCC_NV12, VA_FOURCC_UYVY, VA_FOURCC_YUY2, VA_FOURCC_Y800, VA_FOURCC_444P, VA_FOURCC_RGBA unsigned int fourcc_val; //Using this field to evaluate the input file type. //no.of. components unsigned int num_components; //Y horizontal subsample unsigned int y_h_subsample; //Y vertical subsample unsigned int y_v_subsample; //U horizontal subsample unsigned int u_h_subsample; //U vertical subsample unsigned int u_v_subsample; //V horizontal subsample unsigned int v_h_subsample; //V vertical subsample unsigned int v_v_subsample; } YUVComponentSpecs;