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/*
* h264.h: H.264 bitstream decoding
*
* See the main source file 'xineliboutput.c' for copyright information and
* how to reach the author.
*
* $Id: h264.h,v 1.6 2008-07-29 14:01:35 phintuka Exp $
*
*/
#ifndef _XINELIBOUTPUT_H264_H_
#define _XINELIBOUTPUT_H264_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "mpeg.h"
#define NAL_SPS 0x07 /* Sequence Parameter Set */
#define NAL_AUD 0x09 /* Access Unit Delimiter */
#define NAL_END_SEQ 0x10 /* End of Sequence */
#if defined(__i386__) || defined(__x86_64__)
# define IS_NAL_SPS(buf) (*(uint32_t*)(buf) == 0x07010000U)
# define IS_NAL_AUD(buf) (*(uint32_t*)(buf) == 0x09010000U)
# define IS_NAL_END_SEQ(buf) (*(uint32_t*)(buf) == 0x10010000U)
#else
# define IS_NAL_SPS(buf) ((buf)[0] == 0 && (buf)[1] == 0 && (buf)[2] == 1 && (buf)[3] == NAL_SPS)
# define IS_NAL_AUD(buf) ((buf)[0] == 0 && (buf)[1] == 0 && (buf)[2] == 1 && (buf)[3] == NAL_AUD)
# define IS_NAL_END_SEQ(buf) ((buf)[0] == 0 && (buf)[1] == 0 && (buf)[2] == 1 && (buf)[3] == NAL_END_SEQ)
#endif
typedef struct {
int width;
int height;
mpeg_rational_t pixel_aspect;
/* ... */
} h264_sps_data_t;
/*
* input: start of NAL SPS (without 00 00 01 07)
*/
int h264_parse_sps(const uint8_t *buf, int len, h264_sps_data_t *sps);
/*
* input: start of H.264 video data (not PES)
*/
int h264_get_picture_type(const uint8_t *buf, int len);
/*
* input: start of H.264 video data (not PES)
*/
int h264_get_video_size(const uint8_t *buf, int len, video_size_t *size);
#ifdef __cplusplus
} /* extern "C" { */
#endif
#endif /* _XINELIBOUTPUT_H264_H_ */
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