mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-09-24 15:54:12 +00:00
38 lines
No EOL
1 KiB
C++
38 lines
No EOL
1 KiB
C++
#pragma once
|
|
#include "bfc/platform/types.h"
|
|
#include "avi_reader.h"
|
|
|
|
|
|
namespace nsavi
|
|
{
|
|
class avi_reader;
|
|
#pragma pack(push, 4)
|
|
struct riff_chunk
|
|
{
|
|
uint32_t id;
|
|
uint32_t size;
|
|
uint32_t type; // if id is LIST or RIFF, this will be set
|
|
};
|
|
#pragma pack(pop)
|
|
|
|
|
|
enum ParseState
|
|
{
|
|
NOT_READ = 0,
|
|
PARSED = 1,
|
|
NOT_FOUND = 2,
|
|
PARSE_ERROR = 3,
|
|
FOUND = 4, // we know where it is, but we havn't read it
|
|
PARSE_RESYNC = 5, // read was aborted (return code < 0). need to resync inside the avi_reader
|
|
|
|
};
|
|
|
|
#define nsaviFOURCC( ch0, ch1, ch2, ch3 ) ((uint32_t)(uint8_t)(ch0) | ((uint32_t)(uint8_t)(ch1) << 8 ) | ((uint32_t)(uint8_t)(ch2) << 16 ) | ( (uint32_t)(uint8_t)(ch3) << 24 ))
|
|
|
|
// negative return codes are 'pass-thru' from the the avi_reader object
|
|
// interpret accordingly (e.g. in_avi might abort a long network i/o on stop or seek)
|
|
int read_riff_chunk(nsavi::avi_reader *reader, riff_chunk *chunk, uint32_t *bytes_read=0);
|
|
int skip_chunk(nsavi::avi_reader *reader, const nsavi::riff_chunk *chunk, uint32_t *out_bytes_read=0);
|
|
|
|
|
|
} |