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/*
* pes.h: PES header definitions
*
* See the main source file 'xineliboutput.c' for copyright information and
* how to reach the author.
*
* $Id: pes.h,v 1.11 2009-02-16 16:03:18 phintuka Exp $
*
*/
#ifndef _XINELIBOUTPUT_PES_H_
#define _XINELIBOUTPUT_PES_H_
#ifdef __cplusplus
extern "C" {
#endif
/*
* Constants
*/
#define PES_CHUNK_SIZE 2048
#define MAX_SCR ((int64_t)0x1ffffffffLL)
/* PES PIDs */
#define PRIVATE_STREAM1 0xBD
#define PADDING_STREAM 0xBE
#define PRIVATE_STREAM2 0xBF
#define AUDIO_STREAM_S 0xC0 /* 1100 0000 */
#define AUDIO_STREAM_E 0xDF /* 1101 1111 */
#define VIDEO_STREAM_S 0xE0 /* 1110 0000 */
#define VIDEO_STREAM_E 0xEF /* 1110 1111 */
#define AUDIO_STREAM_MASK 0x1F /* 0001 1111 */
#define VIDEO_STREAM_MASK 0x0F /* 0000 1111 */
#define AUDIO_STREAM 0xC0 /* 1100 0000 */
#define VIDEO_STREAM 0xE0 /* 1110 0000 */
#define ECM_STREAM 0xF0
#define EMM_STREAM 0xF1
#define DSM_CC_STREAM 0xF2
#define ISO13522_STREAM 0xF3
#define PROG_STREAM_DIR 0xFF
#define IS_VIDEO_PACKET(data) (VIDEO_STREAM == ((data)[3] & ~VIDEO_STREAM_MASK))
#define IS_MPEG_AUDIO_PACKET(data) (AUDIO_STREAM == ((data)[3] & ~AUDIO_STREAM_MASK))
#define IS_PS1_PACKET(data) (PRIVATE_STREAM1 == (data)[3])
#define IS_PADDING_PACKET(data) (PADDING_STREAM == (data)[3])
#define IS_AUDIO_PACKET(data) (IS_MPEG_AUDIO_PACKET(data) || IS_PS1_PACKET(data))
#define PES_HAS_PTS(data) ((data)[7] & 0x80)
#define PES_HAS_DTS(data) ((data)[7] & 0x40)
#define DATA_IS_PES(data) (!(data)[0] && !(data)[1] && (data)[2] == 1)
#define PES_HEADER_LEN(data) (8 + (data)[8] + 1)
/*
* timestamps
*/
int64_t pes_get_pts(const uint8_t *buf, int len);
int64_t pes_get_dts(const uint8_t *buf, int len);
void pes_change_pts(uint8_t *buf, int len, int64_t new_pts);
int pes_strip_pts_dts(uint8_t *buf, int len);
/*
* payload
*/
struct video_size_s;
int pes_is_frame_h264(const uint8_t *buf, int len);
uint8_t pes_get_picture_type(const uint8_t *buf, int len);
int pes_get_video_size(const uint8_t *buf, int len, struct video_size_s *size, int h264);
static inline int pes_is_mpeg1(const uint8_t *header)
{
if (IS_VIDEO_PACKET(header) || IS_AUDIO_PACKET(header))
return ((header[6] & 0xC0) != 0x80);
if (header[3] == 0xBA)
return ((header[4] & 0x40) == 0); /* mpeg1 */
return 0;
}
/*
* Extract PES packet length
*/
static inline int pes_packet_len(const uint8_t *data, const int len)
{
if (IS_VIDEO_PACKET(data) || IS_AUDIO_PACKET(data)) {
return 6 + (data[4] << 8 | data[5]);
} else if (data[3] == PADDING_STREAM) {
return 6 + (data[4] << 8 | data[5]);
} else if (data[3] == 0xBA) {
if ((data[4] & 0x40) == 0) /* mpeg1 */
return 12;
else /* mpeg 2 */
return 14 + (data[0xD] & 0x07);
} else if (data[3] <= 0xB9) {
return -3;
}
return -(6 + (data[4] << 8 | data[5]));
}
#ifdef __cplusplus
} /* extern "C" { */
#endif
#endif /* _XINELIBOUTPUT_PES_H_ */
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