vpx_packetizer.h File Reference

Packetizes VPX bitstream into RTP payload and vice versa. More...

Data Structures
struct	pjmedia_vpx_packetizer_cfg

Typedefs
typedef struct pjmedia_vpx_packetizer	pjmedia_vpx_packetizer

Functions
void	pjmedia_vpx_packetizer_cfg_default (pjmedia_vpx_packetizer_cfg *cfg)
pj_status_t	pjmedia_vpx_packetizer_create (pj_pool_t *pool, const pjmedia_vpx_packetizer_cfg *cfg, pjmedia_vpx_packetizer **p_pktz)
pj_status_t	pjmedia_vpx_packetize (const pjmedia_vpx_packetizer *pktz, pj_size_t bits_len, unsigned *bits_pos, pj_bool_t is_keyframe, pj_uint8_t **payload, pj_size_t *payload_len)
pj_status_t	pjmedia_vpx_unpacketize (pjmedia_vpx_packetizer *pktz, const pj_uint8_t *payload, pj_size_t payload_len, unsigned *payload_desc_len)

Typedef Documentation

pjmedia_vpx_packetizer

typedef struct pjmedia_vpx_packetizer pjmedia_vpx_packetizer

Opaque declaration for VPX packetizer.

Function Documentation

pjmedia_vpx_packetizer_cfg_default()

void pjmedia_vpx_packetizer_cfg_default

(

pjmedia_vpx_packetizer_cfg *

cfg

)

Use this function to initialize VPX packetizer config.

Parameters

cfg	The VPX packetizer config to be initialized.

pjmedia_vpx_packetizer_create()

pj_status_t pjmedia_vpx_packetizer_create	(	pj_pool_t *	pool,
		const pjmedia_vpx_packetizer_cfg *	cfg,
		pjmedia_vpx_packetizer **	p_pktz
	)

Create VPX packetizer.

Parameters

pool	The memory pool.
cfg	Packetizer settings, if NULL, default setting will be used.
p_pktz	Pointer to receive the packetizer.

Returns

PJ_SUCCESS on success.

pjmedia_vpx_packetize()

pj_status_t pjmedia_vpx_packetize	(	const pjmedia_vpx_packetizer *	pktz,
		pj_size_t	bits_len,
		unsigned *	bits_pos,
		pj_bool_t	is_keyframe,
		pj_uint8_t **	payload,
		pj_size_t *	payload_len
	)

Generate an RTP payload from a VPX picture bitstream. Note that this function will apply in-place processing, so the bitstream may be modified during the packetization.

Parameters

pktz	The packetizer.
bits_len	The length of the bitstream.
bits_pos	The bitstream offset to be packetized.
is_keyframe	The frame is keyframe.
payload	The output payload.
payload_len	The output payload length, on input it represents max payload length.

Returns

PJ_SUCCESS on success.

pjmedia_vpx_unpacketize()

pj_status_t pjmedia_vpx_unpacketize	(	pjmedia_vpx_packetizer *	pktz,
		const pj_uint8_t *	payload,
		pj_size_t	payload_len,
		unsigned *	payload_desc_len
	)

Append an RTP payload to an VPX picture bitstream. Note that in case of noticing packet lost, application should keep calling this function with payload pointer set to NULL, as the packetizer need to update its internal state.

Parameters

pktz	The packetizer.
payload	The payload to be unpacketized.
payload_len	The payload length.
payload_desc_len	The payload description length.

Returns

PJ_SUCCESS on success.

References PJ_END_DECL.