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ngx_http_flv_module/ngx_rtmp_bitop.h

@@ -0,0 +1,46 @@
+
+/*
+ * Copyright (C) Roman Arutyunyan
+ */
+
+
+#ifndef _NGX_RTMP_BITOP_H_INCLUDED_
+#define _NGX_RTMP_BITOP_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct {
+    u_char      *pos;
+    u_char      *last;
+    ngx_uint_t   offs;
+    ngx_uint_t   err;
+} ngx_rtmp_bit_reader_t;
+
+
+void ngx_rtmp_bit_init_reader(ngx_rtmp_bit_reader_t *br, u_char *pos,
+    u_char *last);
+uint64_t ngx_rtmp_bit_read(ngx_rtmp_bit_reader_t *br, ngx_uint_t n);
+uint64_t ngx_rtmp_bit_read_golomb(ngx_rtmp_bit_reader_t *br);
+
+
+#define ngx_rtmp_bit_read_err(br) ((br)->err)
+
+#define ngx_rtmp_bit_read_eof(br) ((br)->pos == (br)->last)
+
+#define ngx_rtmp_bit_read_8(br)                                               \
+    ((uint8_t) ngx_rtmp_bit_read(br, 8))
+
+#define ngx_rtmp_bit_read_16(br)                                              \
+    ((uint16_t) ngx_rtmp_bit_read(br, 16))
+
+#define ngx_rtmp_bit_read_32(br)                                              \
+    ((uint32_t) ngx_rtmp_bit_read(br, 32))
+
+#define ngx_rtmp_bit_read_64(br)                                              \
+    ((uint64_t) ngx_rtmp_bit_read(br, 64))
+
+
+#endif /* _NGX_RTMP_BITOP_H_INCLUDED_ */