78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
#ifndef _mpeg_ps_proto_h_
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#define _mpeg_ps_proto_h_
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#include "mpeg-types.h"
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#include "mpeg-pes-proto.h"
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//#define NSTREAM 48 // 32-audio('110xxxxx') + 16-video('1110xxxx')
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#define N_ACCESS_UNIT 16
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#define SEQUENCE_END_CODE (0x000001B7)
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struct ps_pack_header_t {
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int mpeg2; // 1-mpeg2, other-mpeg1
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int64_t system_clock_reference_base;
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uint32_t system_clock_reference_extension;
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uint32_t program_mux_rate;
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};
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struct ps_stream_header_t {
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uint32_t stream_id : 8;
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uint32_t stream_extid : 8;
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uint32_t buffer_bound_scale : 1;
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uint32_t buffer_size_bound : 13;
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};
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struct ps_system_header_t {
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uint32_t rate_bound;
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uint32_t audio_bound : 6;
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uint32_t fixed_flag : 1;
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uint32_t CSPS_flag : 1;
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uint32_t system_audio_lock_flag : 1;
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uint32_t system_video_lock_flag : 1;
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uint32_t video_bound : 5;
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uint32_t packet_rate_restriction_flag : 1;
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uint32_t stream_count;
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struct ps_stream_header_t streams[16];
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};
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struct psm_t {
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uint32_t ver : 5; // version_number : 5;
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struct pes_t streams[16];
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size_t stream_count;
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};
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struct psd_t {
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uint64_t prev_directory_offset;
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uint64_t next_directory_offset;
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struct access_unit_t {
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uint8_t packet_stream_id;
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uint8_t pes_header_position_offset_sign;
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uint64_t PTS;
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uint64_t pes_header_position_offset;
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uint16_t reference_offset;
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uint32_t bytes_to_read;
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uint8_t packet_stream_id_extension_msbs;
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uint8_t packet_stream_id_extension_lsbs;
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uint8_t intra_coded_indicator;
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uint8_t coding_parameters_indicator;
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} units[N_ACCESS_UNIT];
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};
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size_t psm_read(struct psm_t *psm, const uint8_t *data, size_t bytes);
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size_t psm_write(const struct psm_t *psm, uint8_t *data);
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size_t psd_read(struct psd_t *psd, const uint8_t *data, size_t bytes);
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size_t pack_header_read(struct ps_pack_header_t *h, const uint8_t *data, size_t bytes);
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size_t system_header_read(struct ps_system_header_t *h, const uint8_t *data, size_t bytes);
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size_t pack_header_write(const struct ps_pack_header_t *h, uint8_t *data);
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size_t system_header_write(const struct ps_system_header_t *h, uint8_t *data);
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#endif /* !_mpeg_ps_proto_h_ */
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