gstreamer/ext/jpeg/smokecodec.h
2012-11-04 00:07:18 +00:00

119 lines
4.8 KiB
C

/* Smoke Codec
* Copyright (C) <2004> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SMOKECODEC_H__
#define __SMOKECODEC_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct _SmokeCodecInfo SmokeCodecInfo;
typedef enum {
SMOKECODEC_WRONGVERSION = -5,
SMOKECODEC_WRONGSIZE = -4,
SMOKECODEC_ERROR = -3,
SMOKECODEC_NOMEM = -2,
SMOKECODEC_NULLPTR = -1,
SMOKECODEC_OK = 0
} SmokeCodecResult;
typedef enum {
SMOKECODEC_KEYFRAME = (1<<0),
SMOKECODEC_MOTION_VECTORS = (1<<1)
} SmokeCodecFlags;
#define SMOKECODEC_ID_STRING "smoke"
typedef enum {
SMOKECODEC_TYPE_ID = 0x80,
SMOKECODEC_TYPE_COMMENT = 0x81,
SMOKECODEC_TYPE_EXTRA = 0x83,
SMOKECODEC_TYPE_DATA = 0x40
} SmokePacketType;
/* init */
int smokecodec_encode_new (SmokeCodecInfo **info,
const unsigned int width,
const unsigned int height,
const unsigned int fps_num,
const unsigned int fps_denom);
int smokecodec_decode_new (SmokeCodecInfo **info);
int smokecodec_info_free (SmokeCodecInfo * info);
/* config */
SmokeCodecResult smokecodec_set_quality (SmokeCodecInfo *info,
const unsigned int min,
const unsigned int max);
SmokeCodecResult smokecodec_get_quality (SmokeCodecInfo *info,
unsigned int *min,
unsigned int *max);
SmokeCodecResult smokecodec_set_threshold (SmokeCodecInfo *info,
const unsigned int threshold);
SmokeCodecResult smokecodec_get_threshold (SmokeCodecInfo *info,
unsigned int *threshold);
SmokeCodecResult smokecodec_set_bitrate (SmokeCodecInfo *info,
const unsigned int bitrate);
SmokeCodecResult smokecodec_get_bitrate (SmokeCodecInfo *info,
unsigned int *bitrate);
/* encoding */
SmokeCodecResult smokecodec_encode_id (SmokeCodecInfo *info,
unsigned char *out,
unsigned int *outsize);
SmokeCodecResult smokecodec_encode (SmokeCodecInfo *info,
const unsigned char *in,
SmokeCodecFlags flags,
unsigned char *out,
unsigned int *outsize);
/* decoding */
SmokeCodecResult smokecodec_parse_id (SmokeCodecInfo *info,
const unsigned char *in,
const unsigned int insize);
SmokeCodecResult smokecodec_parse_header (SmokeCodecInfo *info,
const unsigned char *in,
const unsigned int insize,
SmokeCodecFlags *flags,
unsigned int *width,
unsigned int *height,
unsigned int *fps_num,
unsigned int *fps_denom);
SmokeCodecResult smokecodec_decode (SmokeCodecInfo *info,
const unsigned char *in,
const unsigned int insize,
unsigned char *out);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __SMOKECODEC_H__ */