30 #if FF_API_DESTRUCT_PACKET 56 #if FF_API_DESTRUCT_PACKET 92 #if FF_API_DESTRUCT_PACKET 103 if (pkt->
size <= size)
115 if ((
unsigned)grow_by >
129 #if FF_API_DESTRUCT_PACKET 136 pkt->
size += grow_by;
137 memset(pkt->
data + pkt->
size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
154 #if FF_API_DESTRUCT_PACKET 163 #define ALLOC_MALLOC(data, size) data = av_malloc(size) 164 #define ALLOC_BUF(data, size) \ 166 av_buffer_realloc(&pkt->buf, size); \ 167 data = pkt->buf ? pkt->buf->data : NULL; \ 170 #define DUP_DATA(dst, src, size, padding, ALLOC) \ 174 if ((unsigned)(size) > \ 175 (unsigned)(size) + FF_INPUT_BUFFER_PADDING_SIZE) \ 177 ALLOC(data, size + FF_INPUT_BUFFER_PADDING_SIZE); \ 183 memcpy(data, src, size); \ 185 memset((uint8_t *)data + size, 0, \ 186 FF_INPUT_BUFFER_PADDING_SIZE); \ 206 #if FF_API_DESTRUCT_PACKET 249 #if FF_API_DESTRUCT_PACKET 267 if ((
unsigned)elems + 1 > INT_MAX /
sizeof(*pkt->
side_data))
340 memcpy(dst_data, src_data, size);
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define DUP_DATA(dst, src, size, padding, ALLOC)
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
void av_free_packet(AVPacket *pkt)
Free a packet.
memory handling functions
int64_t pos
byte position in stream, -1 if unknown
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
#define ALLOC_MALLOC(data, size)
#define ALLOC_BUF(data, size)
int av_dup_packet(AVPacket *pkt)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
static void dummy_destruct_packet(AVPacket *pkt)
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
Initialize a reference-counted packet from av_malloc()ed data.
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
attribute_deprecated void(* destruct)(struct AVPacket *)
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
void av_buffer_default_free(void *opaque, uint8_t *data)
Default free callback, which calls av_free() on the buffer data.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another...
void av_packet_free_side_data(AVPacket *pkt)
Convenience function to free all the side data stored.
int64_t convergence_duration
Time difference in AVStream->time_base units from the pts of this packet to the point at which the ou...
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
simple assert() macros that are a bit more flexible than ISO C assert().
enum AVPacketSideDataType type
AVBufferRef * av_buffer_create(uint8_t *data, int size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Shrink the already allocated side data buffer.
int av_buffer_realloc(AVBufferRef **pbuf, int size)
Reallocate a given buffer.
int flags
A combination of AV_PKT_FLAG values.
common internal API header
#define FF_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
Copy only "properties" fields from src to dst.
static int packet_alloc(AVBufferRef **buf, int size)
#define FF_API_DESTRUCT_PACKET
void av_destruct_packet(AVPacket *pkt)
Default packet destructor.
Libavcodec external API header.
AVBufferRef * av_buffer_alloc(int size)
Allocate an AVBuffer of the given size using av_malloc().
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
uint8_t * data
The data buffer.
rational number numerator/denominator
A reference to a data buffer.
AVPacketSideData * side_data
Additional packet data that can be provided by the container.
#define FF_DISABLE_DEPRECATION_WARNINGS
common internal and external API header
void * av_realloc(void *ptr, size_t size)
Allocate or reallocate a block of memory.
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
int av_grow_packet(AVPacket *pkt, int grow_by)
Increase packet size, correctly zeroing padding.
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
int av_packet_ref(AVPacket *dst, AVPacket *src)
Setup a new reference to the data described by a given packet.
#define FF_ENABLE_DEPRECATION_WARNINGS
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
uint8_t * av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.