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FS-7501: fix vid buffer reset

This commit is contained in:
Anthony Minessale 2015-01-24 01:54:59 -06:00 committed by Michael Jerris
parent e00fbe5aad
commit 982d05c30c
2 changed files with 72 additions and 28 deletions
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4
src/include/switch_vidderbuffer.h
View File

@ -34,9 +34,9 @@
#define SWITCH_VIDDERBUFFER_H
SWITCH_BEGIN_EXTERN_C
SWITCH_DECLARE(switch_status_t) switch_vb_create(switch_vb_t **vbp, uint32_t min_frame_len, uint32_t max_frame_len);
SWITCH_DECLARE(switch_status_t) switch_vb_create(switch_vb_t **vbp, uint32_t min_frame_len, uint32_t max_frame_len, switch_memory_pool_t *pool);
SWITCH_DECLARE(switch_status_t) switch_vb_destroy(switch_vb_t **vbp);
SWITCH_DECLARE(void) switch_vb_reset(switch_vb_t *vb, switch_bool_t flush);
SWITCH_DECLARE(void) switch_vb_reset(switch_vb_t *vb);
SWITCH_DECLARE(void) switch_vb_debug_level(switch_vb_t *vb, uint8_t level);
SWITCH_DECLARE(int) switch_vb_frame_count(switch_vb_t *vb);
SWITCH_DECLARE(int) switch_vb_poll(switch_vb_t *vb);

96
src/switch_vidderbuffer.c
View File

@ -52,9 +52,7 @@ struct switch_vb_s {
uint32_t highest_wrote_ts;
uint32_t highest_wrote_seq;
uint16_t target_seq;
uint16_t seq_out;
uint32_t visible_nodes;
uint32_t total_frames;
uint32_t complete_frames;
uint32_t frame_len;
uint32_t min_frame_len;
@ -65,6 +63,9 @@ struct switch_vb_s {
uint16_t next_seq;
switch_inthash_t *missing_seq_hash;
switch_inthash_t *node_hash;
switch_mutex_t *mutex;
switch_memory_pool_t *pool;
int free_pool;
};
static inline switch_vb_node_t *new_node(switch_vb_t *vb)
@ -80,7 +81,7 @@ static inline switch_vb_node_t *new_node(switch_vb_t *vb)
if (!np) {
switch_zmalloc(np, sizeof(*np));
np = switch_core_alloc(vb->pool, sizeof(*np));
if (last) {
last->next = np;
@ -115,8 +116,10 @@ static inline switch_vb_node_t *find_seq(switch_vb_t *vb, uint16_t seq)
static inline void hide_node(switch_vb_node_t *node)
{
node->visible = 0;
node->parent->visible_nodes--;
if (node->visible) {
node->visible = 0;
node->parent->visible_nodes--;
}
switch_core_inthash_delete(node->parent->node_hash, node->packet.header.seq);
}
@ -182,6 +185,19 @@ static inline void add_node(switch_vb_t *vb, switch_rtp_packet_t *packet, switch
vb_debug(vb, (packet->header.m ? 1 : 2), "PUT packet last_ts:%u ts:%u seq:%u%s\n",
ntohl(vb->highest_wrote_ts), ntohl(node->packet.header.ts), ntohs(node->packet.header.seq), packet->header.m ? " <MARK>" : "");
if (vb->write_init && ((abs(htons(packet->header.seq) - htons(vb->highest_wrote_seq)) > 10) ||
(abs(ntohl(node->packet.header.ts) - ntohl(vb->highest_wrote_ts)) > 270000))) {
vb_debug(vb, 2, "%s", "CHANGE DETECTED, PUNT\n");
switch_vb_reset(vb);
}
if (!vb->write_init || ntohs(packet->header.seq) > ntohs(vb->highest_wrote_seq) ||
(ntohs(vb->highest_wrote_seq) > USHRT_MAX - 10 && ntohs(packet->header.seq) <= 10) ) {
vb->highest_wrote_seq = packet->header.seq;
@ -272,14 +288,6 @@ static inline switch_status_t vb_next_packet(switch_vb_t *vb, switch_vb_node_t *
static inline void free_nodes(switch_vb_t *vb)
{
switch_vb_node_t *np = vb->node_list, *cur;
while(np) {
cur = np;
np = np->next;
free(cur);
}
vb->node_list = NULL;
}
@ -299,28 +307,53 @@ SWITCH_DECLARE(void) switch_vb_debug_level(switch_vb_t *vb, uint8_t level)
vb->debug_level = level;
}
SWITCH_DECLARE(void) switch_vb_reset(switch_vb_t *vb, switch_bool_t flush)
SWITCH_DECLARE(void) switch_vb_reset(switch_vb_t *vb)
{
vb_debug(vb, 2, "RESET BUFFER flush: %d\n", (int)flush);
switch_mutex_lock(vb->mutex);
switch_core_inthash_destroy(&vb->missing_seq_hash);
switch_core_inthash_init(&vb->missing_seq_hash);
switch_mutex_unlock(vb->mutex);
vb_debug(vb, 2, "%s", "RESET BUFFER\n");
vb->last_target_seq = 0;
vb->target_seq = 0;
vb->write_init = 0;
vb->highest_wrote_seq = 0;
vb->highest_wrote_ts = 0;
vb->next_seq = 0;
vb->highest_read_ts = 0;
vb->highest_read_seq = 0;
vb->complete_frames = 0;
vb->read_init = 0;
vb->next_seq = 0;
vb->complete_frames = 0;
if (flush) {
//do_flush(vb);
}
hide_nodes(vb);
}
SWITCH_DECLARE(switch_status_t) switch_vb_create(switch_vb_t **vbp, uint32_t min_frame_len, uint32_t max_frame_len)
SWITCH_DECLARE(switch_status_t) switch_vb_create(switch_vb_t **vbp, uint32_t min_frame_len, uint32_t max_frame_len, switch_memory_pool_t *pool)
{
switch_vb_t *vb;
switch_zmalloc(vb, sizeof(*vb));
int free_pool = 0;
if (!pool) {
switch_core_new_memory_pool(&pool);
free_pool = 1;
}
vb = switch_core_alloc(pool, sizeof(*vb));
vb->free_pool = free_pool;
vb->min_frame_len = vb->frame_len = min_frame_len;
vb->max_frame_len = max_frame_len;
//vb->seq_out = (uint16_t) rand();
vb->pool = pool;
switch_core_inthash_init(&vb->missing_seq_hash);
switch_core_inthash_init(&vb->node_hash);
switch_mutex_init(&vb->mutex, SWITCH_MUTEX_NESTED, pool);
*vbp = vb;
@ -336,7 +369,10 @@ SWITCH_DECLARE(switch_status_t) switch_vb_destroy(switch_vb_t **vbp)
switch_core_inthash_destroy(&vb->node_hash);
free_nodes(vb);
free(vb);
if (vb->free_pool) {
switch_core_destroy_memory_pool(&vb->pool);
}
return SWITCH_STATUS_SUCCESS;
}
@ -351,6 +387,8 @@ SWITCH_DECLARE(uint32_t) switch_vb_pop_nack(switch_vb_t *vb)
void *val;
const void *var;
switch_mutex_lock(vb->mutex);
for (hi = switch_core_hash_first(vb->missing_seq_hash); hi; hi = switch_core_hash_next(&hi)) {
uint16_t seq;
@ -375,6 +413,9 @@ SWITCH_DECLARE(uint32_t) switch_vb_pop_nack(switch_vb_t *vb)
}
}
}
switch_mutex_unlock(vb->mutex);
return nack;
}
@ -391,6 +432,8 @@ SWITCH_DECLARE(switch_status_t) switch_vb_put_packet(switch_vb_t *vb, switch_rtp
uint32_t i;
uint16_t want = ntohs(vb->next_seq), got = ntohs(packet->header.seq);
switch_mutex_lock(vb->mutex);
if (!want) want = got;
if (got > want) {
@ -410,6 +453,8 @@ SWITCH_DECLARE(switch_status_t) switch_vb_put_packet(switch_vb_t *vb, switch_rtp
add_node(vb, packet, len);
switch_mutex_unlock(vb->mutex);
return SWITCH_STATUS_SUCCESS;
}
@ -462,7 +507,7 @@ SWITCH_DECLARE(switch_status_t) switch_vb_get_packet(switch_vb_t *vb, switch_rtp
} else {
switch_vb_reset(vb, SWITCH_FALSE);
switch_vb_reset(vb);
switch(status) {
case SWITCH_STATUS_RESTART:
@ -483,8 +528,7 @@ SWITCH_DECLARE(switch_status_t) switch_vb_get_packet(switch_vb_t *vb, switch_rtp
memcpy(packet->body, node->packet.body, node->len);
hide_node(node);
vb_debug(vb, 1, "GET packet ts:%u seq:%u~%u%s\n", ntohl(packet->header.ts), ntohs(packet->header.seq), vb->seq_out, packet->header.m ? " <MARK>" : "");
//packet->header.seq = htons(vb->seq_out++);
vb_debug(vb, 1, "GET packet ts:%u seq:%u %s\n", ntohl(packet->header.ts), ntohs(packet->header.seq), packet->header.m ? " <MARK>" : "");
return status;
}