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buffer: add DYNAMIC data flag

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Add a flag to mark when a buffer data pointer can change.
Improve docs for port flags
This commit is contained in:
Wim Taymans 2019-03-21 10:38:21 +01:00
parent 0505f2dc98
commit df5c81e3be
2 changed files with 9 additions and 3 deletions
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3
spa/include/spa/buffer/buffer.h
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@ -62,7 +62,8 @@ struct spa_chunk {
struct spa_data {
uint32_t type; /**< memory type, one of enum spa_data_type */
#define SPA_DATA_FLAG_NONE 0
#define SPA_DATA_FLAG_CORRUPTED (1<<0) /**< data is corrupted in some way */
#define SPA_DATA_FLAG_CORRUPTED (1u<<0) /**< data is corrupted in some way */
#define SPA_DATA_FLAG_DYNAMIC (1u<<1) /**< data pointer can be changed */
uint32_t flags; /**< data flags */
int64_t fd; /**< optional fd for data */
uint32_t mapoffset; /**< offset to map fd at */

9
spa/include/spa/node/node.h
View file

@ -85,14 +85,19 @@ struct spa_port_info {
#define SPA_PORT_FLAG_CAN_USE_BUFFERS (1u<<3) /**< the port can use a provided buffer */
#define SPA_PORT_FLAG_IN_PLACE (1u<<4) /**< the port can process data in-place and
* will need a writable input buffer */
#define SPA_PORT_FLAG_NO_REF (1u<<5) /**< the port does not keep a ref on the buffer */
#define SPA_PORT_FLAG_NO_REF (1u<<5) /**< the port does not keep a ref on the buffer.
* This means the node will always completely
* consume the input buffer and it will be
* recycled after process. */
#define SPA_PORT_FLAG_LIVE (1u<<6) /**< output buffers from this port are
* timestamped against a live clock. */
#define SPA_PORT_FLAG_PHYSICAL (1u<<7) /**< connects to some device */
#define SPA_PORT_FLAG_TERMINAL (1u<<8) /**< data was not created from this port
* or will not be made available on another
* port */
#define SPA_PORT_FLAG_DYNAMIC_DATA (1u<<9) /**< data pointer on buffers can be changed */
#define SPA_PORT_FLAG_DYNAMIC_DATA (1u<<9) /**< data pointer on buffers can be changed.
* Only the buffer data marked as DYNAMIC
* can be changed. */
uint64_t flags; /**< port flags */
struct spa_fraction rate; /**< rate of sequence numbers on port */
const struct spa_dict *props; /**< extra port properties */