FFmpeg
4.0
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Data Structures | |
struct | AVThreadMessageQueue |
int av_thread_message_queue_alloc | ( | AVThreadMessageQueue ** | mq, |
unsigned | nelem, | ||
unsigned | elsize | ||
) |
Allocate a new message queue.
mq | pointer to the message queue |
nelem | maximum number of elements in the queue |
elsize | size of each element in the queue |
Definition at line 40 of file threadmessage.c.
Referenced by android_camera_read_header(), check_keyboard_interaction(), fifo_init(), and main().
void av_thread_message_queue_set_free_func | ( | AVThreadMessageQueue * | mq, |
void(*)(void *msg) | free_func | ||
) |
Set the optional free message callback function which will be called if an operation is removing messages from the queue.
Definition at line 83 of file threadmessage.c.
Referenced by fifo_init(), and main().
void av_thread_message_queue_free | ( | AVThreadMessageQueue ** | mq | ) |
Free a message queue.
The message queue must no longer be in use by another thread.
Definition at line 91 of file threadmessage.c.
Referenced by android_camera_read_close(), check_keyboard_interaction(), fifo_deinit(), and main().
int av_thread_message_queue_send | ( | AVThreadMessageQueue * | mq, |
void * | msg, | ||
unsigned | flags | ||
) |
Send a message on the queue.
Definition at line 143 of file threadmessage.c.
Referenced by check_keyboard_interaction(), fifo_write_packet(), image_available(), and sender_thread().
int av_thread_message_queue_recv | ( | AVThreadMessageQueue * | mq, |
void * | msg, | ||
unsigned | flags | ||
) |
Receive a message from the queue.
Definition at line 159 of file threadmessage.c.
Referenced by android_camera_read_close(), android_camera_read_packet(), check_keyboard_interaction(), fifo_consumer_thread(), and receiver_thread().
void av_thread_message_queue_set_err_send | ( | AVThreadMessageQueue * | mq, |
int | err | ||
) |
Set the sending error code.
If the error code is set to non-zero, av_thread_message_queue_send() will return it immediately. Conventional values, such as AVERROR_EOF or AVERROR(EAGAIN), can be used to cause the sending thread to stop or suspend its operation.
Definition at line 175 of file threadmessage.c.
Referenced by android_camera_read_close(), check_keyboard_interaction(), fifo_consumer_thread(), and receiver_thread().
void av_thread_message_queue_set_err_recv | ( | AVThreadMessageQueue * | mq, |
int | err | ||
) |
Set the receiving error code.
If the error code is set to non-zero, av_thread_message_queue_recv() will return it immediately when there are no longer available messages. Conventional values, such as AVERROR_EOF or AVERROR(EAGAIN), can be used to cause the receiving thread to stop or suspend its operation.
Definition at line 186 of file threadmessage.c.
Referenced by check_keyboard_interaction(), fifo_write_trailer(), image_available(), and sender_thread().
void av_thread_message_flush | ( | AVThreadMessageQueue * | mq | ) |
Flush the message queue.
This function is mostly equivalent to reading and free-ing every message except that it will be done in a single operation (no lock/unlock between reads).
Definition at line 205 of file threadmessage.c.
Referenced by av_thread_message_queue_free(), fifo_consumer_thread(), receiver_thread(), and sender_thread().