diff options
Diffstat (limited to 'drivers/media/video/gspca/jpeg.h')
| -rw-r--r-- | drivers/media/video/gspca/jpeg.h | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/jpeg.h b/drivers/media/video/gspca/jpeg.h new file mode 100644 index 0000000..d823b47 --- /dev/null +++ b/drivers/media/video/gspca/jpeg.h @@ -0,0 +1,301 @@ +#ifndef JPEG_H +#define JPEG_H 1 +/* + * Insert a JPEG header at start of frame + * + * This module is used by the gspca subdrivers. + * A special case is done for Conexant webcams. + * + * Copyright (C) Jean-Francois Moine (http://moinejf.free.fr) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/* start of jpeg frame + quantization table */ +static const unsigned char quant[][0x88] = { +/* index 0 - Q40*/ + { + 0xff, 0xd8, /* jpeg */ + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, /* quantization table part 1 */ + 20, 14, 15, 18, 15, 13, 20, 18, 16, 18, 23, 21, 20, 24, 30, 50, + 33, 30, 28, 28, 30, 61, 44, 46, 36, 50, 73, 64, 76, 75, 71, 64, + 70, 69, 80, 90, 115, 98, 80, 85, 109, 86, 69, 70, 100, 136, 101, + 109, + 119, 123, 129, 130, 129, 78, 96, 141, 151, 140, 125, 150, 115, + 126, 129, 124, +1, /* quantization table part 2 */ + 21, 23, 23, 30, 26, 30, 59, 33, 33, 59, 124, 83, 70, 83, 124, 124, + 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, + 124, 124, 124, + 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, + 124, 124, 124, + 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, + 124, 124, 124}, +/* index 1 - Q50 */ + { + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 16, 11, 12, 14, 12, 10, 16, 14, 13, 14, 18, 17, 16, 19, 24, 40, + 26, 24, 22, 22, 24, 49, 35, 37, 29, 40, 58, 51, 61, 60, 57, 51, + 56, 55, 64, 72, 92, 78, 64, 68, 87, 69, 55, 56, 80, 109, 81, 87, + 95, 98, 103, 104, 103, 62, 77, 113, 121, 112, 100, 120, 92, 101, + 103, 99, +1, + 17, 18, 18, 24, 21, 24, 47, 26, 26, 47, 99, 66, 56, 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, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99}, +/* index 2 Q60 */ + { + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 13, 9, 10, 11, 10, 8, 13, 11, 10, 11, 14, 14, 13, 15, 19, 32, + 21, 19, 18, 18, 19, 39, 28, 30, 23, 32, 46, 41, 49, 48, 46, 41, + 45, 44, 51, 58, 74, 62, 51, 54, 70, 55, 44, 45, 64, 87, 65, 70, + 76, 78, 82, 83, 82, 50, 62, 90, 97, 90, 80, 96, 74, 81, 82, 79, +1, + 14, 14, 14, 19, 17, 19, 38, 21, 21, 38, 79, 53, 45, 53, 79, 79, + 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, + 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, + 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79}, +/* index 3 - Q70 */ + { + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 10, 7, 7, 8, 7, 6, 10, 8, 8, 8, 11, 10, 10, 11, 14, 24, + 16, 14, 13, 13, 14, 29, 21, 22, 17, 24, 35, 31, 37, 36, 34, 31, + 34, 33, 38, 43, 55, 47, 38, 41, 52, 41, 33, 34, 48, 65, 49, 52, + 57, 59, 62, 62, 62, 37, 46, 68, 73, 67, 60, 72, 55, 61, 62, 59, +1, + 10, 11, 11, 14, 13, 14, 28, 16, 16, 28, 59, 40, 34, 40, 59, 59, + 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, + 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, + 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59}, +/* index 4 - Q80 */ + { + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 6, 4, 5, 6, 5, 4, 6, 6, 5, 6, 7, 7, 6, 8, 10, 16, + 10, 10, 9, 9, 10, 20, 14, 15, 12, 16, 23, 20, 24, 24, 23, 20, + 22, 22, 26, 29, 37, 31, 26, 27, 35, 28, 22, 22, 32, 44, 32, 35, + 38, 39, 41, 42, 41, 25, 31, 45, 48, 45, 40, 48, 37, 40, 41, 40, +1, + 7, 7, 7, 10, 8, 10, 19, 10, 10, 19, 40, 26, 22, 26, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40}, +/* index 5 - Q85 */ + { + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 5, 3, 4, 4, 4, 3, 5, 4, 4, 4, 5, 5, 5, 6, 7, 12, + 8, 7, 7, 7, 7, 15, 11, 11, 9, 12, 17, 15, 18, 18, 17, 15, + 17, 17, 19, 22, 28, 23, 19, 20, 26, 21, 17, 17, 24, 33, 24, 26, + 29, 29, 31, 31, 31, 19, 23, 34, 36, 34, 30, 36, 28, 30, 31, 30, +1, + 5, 5, 5, 7, 6, 7, 14, 8, 8, 14, 30, 20, 17, 20, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, +/* index 6 - 86 */ +{ + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 0x04, 0x03, 0x03, 0x04, 0x03, 0x03, 0x04, 0x04, + 0x04, 0x04, 0x05, 0x05, 0x04, 0x05, 0x07, 0x0B, + 0x07, 0x07, 0x06, 0x06, 0x07, 0x0E, 0x0A, 0x0A, + 0x08, 0x0B, 0x10, 0x0E, 0x11, 0x11, 0x10, 0x0E, + 0x10, 0x0F, 0x12, 0x14, 0x1A, 0x16, 0x12, 0x13, + 0x18, 0x13, 0x0F, 0x10, 0x16, 0x1F, 0x17, 0x18, + 0x1B, 0x1B, 0x1D, 0x1D, 0x1D, 0x11, 0x16, 0x20, + 0x22, 0x1F, 0x1C, 0x22, 0x1A, 0x1C, 0x1D, 0x1C, +1, + 0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x0D, 0x07, + 0x07, 0x0D, 0x1C, 0x12, 0x10, 0x12, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, + }, +/* index 7 - 88 */ +{ + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 0x04, 0x03, 0x03, 0x03, 0x03, 0x02, 0x04, 0x03, + 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x06, 0x0A, + 0x06, 0x06, 0x05, 0x05, 0x06, 0x0C, 0x08, 0x09, + 0x07, 0x0A, 0x0E, 0x0C, 0x0F, 0x0E, 0x0E, 0x0C, + 0x0D, 0x0D, 0x0F, 0x11, 0x16, 0x13, 0x0F, 0x10, + 0x15, 0x11, 0x0D, 0x0D, 0x13, 0x1A, 0x13, 0x15, + 0x17, 0x18, 0x19, 0x19, 0x19, 0x0F, 0x12, 0x1B, + 0x1D, 0x1B, 0x18, 0x1D, 0x16, 0x18, 0x19, 0x18, +1, + 0x04, 0x04, 0x04, 0x06, 0x05, 0x06, 0x0B, 0x06, + 0x06, 0x0B, 0x18, 0x10, 0x0D, 0x10, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, +}, +/* index 8 - ?? */ +{ + 0xff, 0xd8, + 0xff, 0xdb, 0x00, 0x84, /* DQT */ +0, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x05, + 0x03, 0x03, 0x03, 0x03, 0x03, 0x06, 0x04, 0x05, + 0x04, 0x05, 0x07, 0x06, 0x08, 0x08, 0x07, 0x06, + 0x07, 0x07, 0x08, 0x09, 0x0C, 0x0A, 0x08, 0x09, + 0x0B, 0x09, 0x07, 0x07, 0x0A, 0x0E, 0x0A, 0x0B, + 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x08, 0x0A, 0x0E, + 0x0F, 0x0E, 0x0D, 0x0F, 0x0C, 0x0D, 0x0D, 0x0C, +1, + 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x06, 0x03, + 0x03, 0x06, 0x0C, 0x08, 0x07, 0x08, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, + 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C +} +}; + +/* huffman table + start of SOF0 */ +static unsigned char huffman[] = { + 0xff, 0xc4, 0x01, 0xa2, + 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, + 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x01, 0x00, 0x03, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, + 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, + 0x0a, 0x0b, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, + 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, + 0x00, 0x01, 0x7d, 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, 0x11, 0x00, 0x02, + 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, + 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 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, +#ifdef CONEX_CAM +/* the Conexant frames start with SOF0 */ +#else + 0xff, 0xc0, 0x00, 0x11, /* SOF0 (start of frame 0 */ + 0x08, /* data precision */ +#endif +}; + +#ifndef CONEX_CAM +/* variable part: + * 0x01, 0xe0, height + * 0x02, 0x80, width + * 0x03, component number + * 0x01, + * 0x21, samples Y + */ + +/* end of header */ +static unsigned char eoh[] = { + 0x00, /* quant Y */ + 0x02, 0x11, 0x01, /* samples CbCr - quant CbCr */ + 0x03, 0x11, 0x01, + + 0xff, 0xda, 0x00, 0x0c, /* SOS (start of scan) */ + 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00 +}; +#endif + +/* -- output the JPEG header -- */ +static void jpeg_put_header(struct gspca_dev *gspca_dev, + struct gspca_frame *frame, + int qindex, + int samplesY) +{ +#ifndef CONEX_CAM + unsigned char tmpbuf[8]; +#endif + + gspca_frame_add(gspca_dev, FIRST_PACKET, frame, + (unsigned char *) quant[qindex], sizeof quant[0]); + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + (unsigned char *) huffman, sizeof huffman); +#ifndef CONEX_CAM + tmpbuf[0] = gspca_dev->height >> 8; + tmpbuf[1] = gspca_dev->height & 0xff; + tmpbuf[2] = gspca_dev->width >> 8; + tmpbuf[3] = gspca_dev->width & 0xff; + tmpbuf[4] = 0x03; /* component number */ + tmpbuf[5] = 0x01; /* first component */ + tmpbuf[6] = samplesY; + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + tmpbuf, 7); + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + eoh, sizeof eoh); +#endif +} +#endif |
