diff options
Diffstat (limited to 'drivers/media/video/gspca/jpeg.h')
| -rw-r--r-- | drivers/media/video/gspca/jpeg.h | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/drivers/media/video/gspca/jpeg.h b/drivers/media/video/gspca/jpeg.h deleted file mode 100644 index ab54910418b4..000000000000 --- a/drivers/media/video/gspca/jpeg.h +++ /dev/null @@ -1,168 +0,0 @@ -#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 - * - */ - -/* - * generation options - * CONEX_CAM Conexant if present - */ - -/* JPEG header */ -static const u8 jpeg_head[] = { - 0xff, 0xd8, /* jpeg */ - -/* quantization table quality 50% */ - 0xff, 0xdb, 0x00, 0x84, /* DQT */ -0, -#define JPEG_QT0_OFFSET 7 - 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, - 0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, - 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, - 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, - 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40, 0x44, - 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57, - 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, - 0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63, -1, -#define JPEG_QT1_OFFSET 72 - 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, - 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - -/* huffman table */ - 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 */ -#define JPEG_HDR_SZ 556 -#else - 0xff, 0xc0, 0x00, 0x11, /* SOF0 (start of frame 0 */ - 0x08, /* data precision */ -#define JPEG_HEIGHT_OFFSET 561 - 0x01, 0xe0, /* height */ - 0x02, 0x80, /* width */ - 0x03, /* component number */ - 0x01, - 0x21, /* samples Y */ - 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 -#define JPEG_HDR_SZ 589 -#endif -}; - -/* define the JPEG header */ -static void jpeg_define(u8 *jpeg_hdr, - int height, - int width, - int samplesY) -{ - memcpy(jpeg_hdr, jpeg_head, sizeof jpeg_head); -#ifndef CONEX_CAM - jpeg_hdr[JPEG_HEIGHT_OFFSET + 0] = height >> 8; - jpeg_hdr[JPEG_HEIGHT_OFFSET + 1] = height; - jpeg_hdr[JPEG_HEIGHT_OFFSET + 2] = width >> 8; - jpeg_hdr[JPEG_HEIGHT_OFFSET + 3] = width; - jpeg_hdr[JPEG_HEIGHT_OFFSET + 6] = samplesY; -#endif -} - -/* set the JPEG quality */ -static void jpeg_set_qual(u8 *jpeg_hdr, - int quality) -{ - int i, sc; - - if (quality < 50) - sc = 5000 / quality; - else - sc = 200 - quality * 2; - for (i = 0; i < 64; i++) { - jpeg_hdr[JPEG_QT0_OFFSET + i] = - (jpeg_head[JPEG_QT0_OFFSET + i] * sc + 50) / 100; - jpeg_hdr[JPEG_QT1_OFFSET + i] = - (jpeg_head[JPEG_QT1_OFFSET + i] * sc + 50) / 100; - } -} -#endif |