23 #ifndef AVCODEC_BYTESTREAM_H
24 #define AVCODEC_BYTESTREAM_H
42 #define DEF(type, name, bytes, read, write) \
43 static av_always_inline type bytestream_get_ ## name(const uint8_t **b) \
46 return read(*b - bytes); \
48 static av_always_inline void bytestream_put_ ## name(uint8_t **b, \
54 static av_always_inline void bytestream2_put_ ## name ## u(PutByteContext *p, \
57 bytestream_put_ ## name(&p->buffer, value); \
59 static av_always_inline void bytestream2_put_ ## name(PutByteContext *p, \
62 if (!p->eof && (p->buffer_end - p->buffer >= bytes)) { \
63 write(p->buffer, value); \
68 static av_always_inline type bytestream2_get_ ## name ## u(GetByteContext *g) \
70 return bytestream_get_ ## name(&g->buffer); \
72 static av_always_inline type bytestream2_get_ ## name(GetByteContext *g) \
74 if (g->buffer_end - g->buffer < bytes) \
76 return bytestream2_get_ ## name ## u(g); \
78 static av_always_inline type bytestream2_peek_ ## name(GetByteContext *g) \
80 if (g->buffer_end - g->buffer < bytes) \
82 return read(g->buffer); \
96 # define bytestream2_get_ne16 bytestream2_get_be16
97 # define bytestream2_get_ne24 bytestream2_get_be24
98 # define bytestream2_get_ne32 bytestream2_get_be32
99 # define bytestream2_get_ne64 bytestream2_get_be64
100 # define bytestream2_get_ne16u bytestream2_get_be16u
101 # define bytestream2_get_ne24u bytestream2_get_be24u
102 # define bytestream2_get_ne32u bytestream2_get_be32u
103 # define bytestream2_get_ne64u bytestream2_get_be64u
104 # define bytestream2_put_ne16 bytestream2_put_be16
105 # define bytestream2_put_ne24 bytestream2_put_be24
106 # define bytestream2_put_ne32 bytestream2_put_be32
107 # define bytestream2_put_ne64 bytestream2_put_be64
108 # define bytestream2_peek_ne16 bytestream2_peek_be16
109 # define bytestream2_peek_ne24 bytestream2_peek_be24
110 # define bytestream2_peek_ne32 bytestream2_peek_be32
111 # define bytestream2_peek_ne64 bytestream2_peek_be64
113 # define bytestream2_get_ne16 bytestream2_get_le16
114 # define bytestream2_get_ne24 bytestream2_get_le24
115 # define bytestream2_get_ne32 bytestream2_get_le32
116 # define bytestream2_get_ne64 bytestream2_get_le64
117 # define bytestream2_get_ne16u bytestream2_get_le16u
118 # define bytestream2_get_ne24u bytestream2_get_le24u
119 # define bytestream2_get_ne32u bytestream2_get_le32u
120 # define bytestream2_get_ne64u bytestream2_get_le64u
121 # define bytestream2_put_ne16 bytestream2_put_le16
122 # define bytestream2_put_ne24 bytestream2_put_le24
123 # define bytestream2_put_ne32 bytestream2_put_le32
124 # define bytestream2_put_ne64 bytestream2_put_le64
125 # define bytestream2_peek_ne16 bytestream2_peek_le16
126 # define bytestream2_peek_ne24 bytestream2_peek_le24
127 # define bytestream2_peek_ne32 bytestream2_peek_le32
128 # define bytestream2_peek_ne64 bytestream2_peek_le64
266 memcpy(dst, g->
buffer, size2);
275 memcpy(dst, g->
buffer, size);
290 memcpy(p->
buffer, src, size2);
299 memcpy(p->
buffer, src, size);
314 memset(p->
buffer, c, size2);
322 memset(p->
buffer, c, size);
361 memcpy(dst, *b, size);
370 memcpy(*b, src, size);
static av_always_inline void bytestream2_set_bufferu(PutByteContext *p, const uint8_t c, unsigned int size)
static av_always_inline void bytestream2_set_buffer(PutByteContext *p, const uint8_t c, unsigned int size)
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL le32
#define av_assert0(cond)
assert() equivalent, that is always enabled.
#define DEF(type, name, bytes, read, write)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL be24
static av_always_inline int bytestream2_size(GetByteContext *g)
static av_always_inline unsigned int bytestream2_get_bytes_left_p(PutByteContext *p)
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL be64
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
simple assert() macros that are a bit more flexible than ISO C assert().
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_RL24
static const uint8_t offset[127][2]
static av_always_inline int bytestream2_tell_p(PutByteContext *p)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL be16
const uint8_t * buffer_end
static av_always_inline void bytestream2_skip_p(PutByteContext *p, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL le24
static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size)
static av_always_inline unsigned int bytestream2_put_buffer(PutByteContext *p, const uint8_t *src, unsigned int size)
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
static av_always_inline int bytestream2_tell(GetByteContext *g)
static av_always_inline unsigned int bytestream2_copy_bufferu(PutByteContext *p, GetByteContext *g, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_WB16 unsigned int_TMPL AV_RB8
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_RB24
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_WB16 unsigned int_TMPL byte
static av_always_inline unsigned int bytestream2_put_bufferu(PutByteContext *p, const uint8_t *src, unsigned int size)
const uint8_t * buffer_start
static av_always_inline unsigned int bytestream2_copy_buffer(PutByteContext *p, GetByteContext *g, unsigned int size)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL be32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL le16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_RB64
common internal and external API header
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
static av_always_inline int bytestream2_size_p(PutByteContext *p)