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implemented multiple recorder support

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This commit is contained in:
Roman Arutyunyan 2012-09-04 20:36:25 +04:00
parent 81171a8582
commit 02b9e2d4f7
2 changed files with 154 additions and 149 deletions
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273
ngx_rtmp_record_module.c
View file

@ -22,10 +22,6 @@ static ngx_int_t ngx_rtmp_record_postconfiguration(ngx_conf_t *cf);
static void * ngx_rtmp_record_create_app_conf(ngx_conf_t *cf);
static char * ngx_rtmp_record_merge_app_conf(ngx_conf_t *cf,
void *parent, void *child);
static ngx_int_t ngx_rtmp_record_init(ngx_rtmp_session_t *s);
static ngx_int_t ngx_rtmp_record_node_init(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_conf_t *rc);
static ngx_int_t ngx_rtmp_record_write_frame(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_ctx_t *rctx,
ngx_rtmp_header_t *h, ngx_chain_t *in);
@ -35,12 +31,6 @@ static ngx_int_t ngx_rtmp_record_node_av(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_ctx_t *rctx, ngx_rtmp_header_t *h, ngx_chain_t *in);
#define NGX_RTMP_RECORD_OFF 0x01
#define NGX_RTMP_RECORD_AUDIO 0x02
#define NGX_RTMP_RECORD_VIDEO 0x04
#define NGX_RTMP_RECORD_KEYFRAMES 0x08
static ngx_conf_bitmask_t ngx_rtmp_record_mask[] = {
{ ngx_string("off"), NGX_RTMP_RECORD_OFF },
{ ngx_string("all"), NGX_RTMP_RECORD_AUDIO |
@ -58,49 +48,49 @@ static ngx_command_t ngx_rtmp_record_commands[] = {
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_1MORE,
ngx_conf_set_bitmask_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, flags),
offsetof(ngx_rtmp_record_app_conf_t, def.flags),
ngx_rtmp_record_mask },
{ ngx_string("record_path"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, path),
offsetof(ngx_rtmp_record_app_conf_t, def.path),
NULL },
{ ngx_string("record_suffix"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, suffix),
offsetof(ngx_rtmp_record_app_conf_t, def.suffix),
NULL },
{ ngx_string("record_unique"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_flag_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, unique),
offsetof(ngx_rtmp_record_app_conf_t, def.unique),
NULL },
{ ngx_string("record_max_size"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, max_size),
offsetof(ngx_rtmp_record_app_conf_t, def.max_size),
NULL },
{ ngx_string("record_max_frames"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, max_frames),
offsetof(ngx_rtmp_record_app_conf_t, def.max_frames),
NULL },
{ ngx_string("record_interval"),
NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
ngx_conf_set_msec_slot,
NGX_RTMP_APP_CONF_OFFSET,
offsetof(ngx_rtmp_record_app_conf_t, interval),
offsetof(ngx_rtmp_record_app_conf_t, def.interval),
NULL },
{ ngx_string("on_record_done"),
@ -153,10 +143,19 @@ ngx_rtmp_record_create_app_conf(ngx_conf_t *cf)
return NULL;
}
racf->max_size = NGX_CONF_UNSET;
racf->max_frames = NGX_CONF_UNSET;
racf->interval = NGX_CONF_UNSET;
racf->unique = NGX_CONF_UNSET;
racf->def.max_size = NGX_CONF_UNSET;
racf->def.max_frames = NGX_CONF_UNSET;
racf->def.interval = NGX_CONF_UNSET;
racf->def.unique = NGX_CONF_UNSET;
ngx_str_set(&racf->def.id, "default");
if (ngx_array_init(&racf->nodes, cf->pool, 1,
sizeof(ngx_rtmp_record_node_t *))
!= NGX_OK)
{
return NULL;
}
return racf;
}
@ -167,16 +166,25 @@ ngx_rtmp_record_merge_app_conf(ngx_conf_t *cf, void *parent, void *child)
{
ngx_rtmp_record_app_conf_t *prev = parent;
ngx_rtmp_record_app_conf_t *conf = child;
ngx_rtmp_record_node_t **node;
ngx_conf_merge_bitmask_value(conf->flags, prev->flags,
(NGX_CONF_BITMASK_SET|NGX_RTMP_RECORD_OFF));
ngx_conf_merge_str_value(conf->path, prev->path, "");
ngx_conf_merge_str_value(conf->suffix, prev->suffix, ".flv");
ngx_conf_merge_size_value(conf->max_size, prev->max_size, 0);
ngx_conf_merge_size_value(conf->max_frames, prev->max_frames, 0);
ngx_conf_merge_value(conf->unique, prev->unique, 0);
ngx_conf_merge_msec_value(conf->interval, prev->interval,
ngx_conf_merge_str_value(conf->def.path, prev->def.path, "");
ngx_conf_merge_str_value(conf->def.suffix, prev->def.suffix, ".flv");
ngx_conf_merge_size_value(conf->def.max_size, prev->def.max_size, 0);
ngx_conf_merge_size_value(conf->def.max_frames, prev->def.max_frames, 0);
ngx_conf_merge_value(conf->def.unique, prev->def.unique, 0);
ngx_conf_merge_msec_value(conf->def.interval, prev->def.interval,
(ngx_msec_t) NGX_CONF_UNSET);
ngx_conf_merge_bitmask_value(conf->def.flags, prev->def.flags, 0);
if (conf->def.flags) {
node = ngx_array_push(&conf->nodes);
if (node == NULL) {
return NGX_CONF_ERROR;
}
*node = &conf->def;
}
return NGX_CONF_OK;
}
@ -214,7 +222,7 @@ ngx_rtmp_record_make_path(ngx_rtmp_session_t *s,
{
ngx_rtmp_record_ctx_t *ctx;
u_char *p, *l;
ngx_rtmp_record_node_conf_t *rc;
ngx_rtmp_record_node_t *rc;
static u_char buf[NGX_TIME_T_LEN + 1];
static u_char path[NGX_MAX_PATH + 1];
@ -243,6 +251,9 @@ ngx_rtmp_record_make_path(ngx_rtmp_session_t *s,
ngx_min(rc->suffix.len, (size_t)(l - p)));
*p = 0;
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V path: '%s'", &rc->id, path);
return path;
}
@ -250,20 +261,25 @@ ngx_rtmp_record_make_path(ngx_rtmp_session_t *s,
ngx_int_t
ngx_rtmp_record_open(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
{
ngx_err_t err;
u_char *path;
ngx_rtmp_record_node_t *rc;
ngx_err_t err;
u_char *path;
rc = rctx->conf;
if (rctx->file.fd != NGX_INVALID_FILE) {
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V already opened", &rc->id);
return NGX_OK;
}
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V opening", &rc->id);
rctx->timestamp = ngx_cached_time->sec;
path = ngx_rtmp_record_make_path(s, rctx);
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: path '%s'", path);
rctx->nframes = 0;
ngx_memzero(&rctx->file, sizeof(rctx->file));
@ -279,88 +295,78 @@ ngx_rtmp_record_open(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
if (err != NGX_ENOENT) {
ngx_log_error(NGX_LOG_CRIT, s->connection->log, err,
"record: failed to open file '%s'", path);
"record: %V failed to open file '%s'",
&rc->id, path);
}
return NGX_OK;
}
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: opened '%s'", path);
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V opened '%s'", &rc->id, path);
return NGX_OK;
}
static ngx_int_t
ngx_rtmp_record_node_init(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_conf_t *rc)
{
ngx_rtmp_record_ctx_t *ctx;
ngx_rtmp_record_node_ctx_t *rctx;
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);
rctx = ngx_pcalloc(s->connection->pool,
sizeof(ngx_rtmp_record_node_ctx_t));
if (rctx == NULL) {
return NGX_ERROR;
}
rctx->next = ctx->rctx;
ctx->rctx = rctx;
rctx->conf = rc;
rctx->file.fd = NGX_INVALID_FILE;
return NGX_OK;
}
static ngx_int_t
ngx_rtmp_record_init(ngx_rtmp_session_t *s)
{
ngx_rtmp_record_app_conf_t *racf;
ngx_rtmp_record_ctx_t *ctx;
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);
if (ctx) {
return NGX_OK;
}
ctx = ngx_pcalloc(s->connection->pool, sizeof(ngx_rtmp_record_ctx_t));
if (ctx == NULL) {
return NGX_ERROR;
}
ngx_rtmp_set_ctx(s, ctx, ngx_rtmp_record_module);
racf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_record_module);
return ngx_rtmp_record_node_init(s, racf);
}
static ngx_int_t
ngx_rtmp_record_publish(ngx_rtmp_session_t *s, ngx_rtmp_publish_t *v)
{
ngx_rtmp_record_node_ctx_t *rctx;
ngx_rtmp_record_app_conf_t *racf;
ngx_rtmp_record_ctx_t *ctx;
u_char *p;
ngx_uint_t n;
ngx_rtmp_record_node_t **node;
ngx_rtmp_record_node_ctx_t *rctx;
if (s->auto_pushed) {
goto next;
}
if (ngx_rtmp_record_init(s) != NGX_OK) {
return NGX_ERROR;
racf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_record_module);
if (racf == NULL || racf->nodes.nelts == 0) {
goto next;
}
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: publish %ui nodes",
racf->nodes.nelts);
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);
if (ctx == NULL) {
ctx = ngx_pcalloc(s->connection->pool, sizeof(ngx_rtmp_record_ctx_t));
if (ctx == NULL) {
return NGX_ERROR;
}
ngx_rtmp_set_ctx(s, ctx, ngx_rtmp_record_module);
if (ngx_array_init(&ctx->nodes, s->connection->pool, racf->nodes.nelts,
sizeof(ngx_rtmp_record_node_ctx_t))
!= NGX_OK)
{
return NGX_ERROR;
}
node = racf->nodes.elts;
rctx = ngx_array_push_n(&ctx->nodes, racf->nodes.nelts);
if (rctx == NULL) {
return NGX_ERROR;
}
for (n = 0; n < racf->nodes.nelts; ++n, ++node, ++rctx) {
ngx_memzero(rctx, sizeof(*rctx));
rctx->conf = *node;
rctx->file.fd = NGX_INVALID_FILE;
}
}
ngx_memcpy(ctx->name, v->name, sizeof(ctx->name));
ngx_memcpy(ctx->args, v->args, sizeof(ctx->args));
@ -375,7 +381,9 @@ ngx_rtmp_record_publish(ngx_rtmp_session_t *s, ngx_rtmp_publish_t *v)
}
}
for (rctx = ctx->rctx; rctx; rctx = rctx->next) {
rctx = ctx->nodes.elts;
for (n = 0; n < ctx->nodes.nelts; ++n, ++rctx) {
if (rctx->conf->flags & NGX_RTMP_RECORD_OFF) {
continue;
}
@ -474,8 +482,8 @@ ngx_rtmp_record_notify_create(ngx_rtmp_session_t *s, void *arg,
static ngx_int_t
ngx_rtmp_record_notify(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
{
ngx_rtmp_netcall_init_t ci;
ngx_rtmp_record_node_conf_t *rc;
ngx_rtmp_netcall_init_t ci;
ngx_rtmp_record_node_t *rc;
rc = rctx->conf;
@ -496,7 +504,10 @@ ngx_rtmp_record_notify(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
ngx_int_t
ngx_rtmp_record_close(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
{
ngx_err_t err;
ngx_rtmp_record_node_t *rc;
ngx_err_t err;
rc = rctx->conf;
if (rctx->file.fd == NGX_INVALID_FILE) {
return NGX_OK;
@ -505,13 +516,13 @@ ngx_rtmp_record_close(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx)
if (ngx_close_file(rctx->file.fd) == NGX_FILE_ERROR) {
err = ngx_errno;
ngx_log_error(NGX_LOG_CRIT, s->connection->log, err,
"record: error closing file");
"record: %V error closing file", &rc->id);
}
rctx->file.fd = NGX_INVALID_FILE;
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: closed");
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V closed", &rc->id);
return ngx_rtmp_record_notify(s, rctx);
}
@ -523,6 +534,7 @@ ngx_rtmp_record_delete_stream(ngx_rtmp_session_t *s,
{
ngx_rtmp_record_ctx_t *ctx;
ngx_rtmp_record_node_ctx_t *rctx;
ngx_uint_t n;
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);
@ -530,7 +542,13 @@ ngx_rtmp_record_delete_stream(ngx_rtmp_session_t *s,
goto next;
}
for (rctx = ctx->rctx; rctx; rctx = rctx->next) {
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: delete_stream %ui nodes",
ctx->nodes.nelts);
rctx = ctx->nodes.elts;
for (n = 0; n < ctx->nodes.nelts; ++n, ++rctx) {
ngx_rtmp_record_close(s, rctx);
}
@ -544,14 +562,14 @@ ngx_rtmp_record_write_frame(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_ctx_t *rctx,
ngx_rtmp_header_t *h, ngx_chain_t *in)
{
u_char hdr[11], *p, *ph;
uint32_t timestamp, tag_size;
ngx_rtmp_record_node_conf_t *rc;
u_char hdr[11], *p, *ph;
uint32_t timestamp, tag_size;
ngx_rtmp_record_node_t *rc;
rc = rctx->conf;
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: av: mlen=%uD", h->mlen);
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V frame: mlen=%uD", &rc->id, h->mlen);
timestamp = h->timestamp - rctx->epoch;
@ -621,12 +639,9 @@ ngx_rtmp_record_write_frame(ngx_rtmp_session_t *s,
++rctx->nframes;
/* watch max size */
if ((rc->max_size &&
rctx->file.offset >= (ngx_int_t) rc->max_size) ||
if ((rc->max_size && rctx->file.offset >= (ngx_int_t) rc->max_size) ||
(rc->max_frames && rctx->nframes >= rc->max_frames))
{
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: closed");
ngx_rtmp_record_close(s, rctx);
}
@ -653,6 +668,7 @@ ngx_rtmp_record_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
{
ngx_rtmp_record_ctx_t *ctx;
ngx_rtmp_record_node_ctx_t *rctx;
ngx_uint_t n;
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);
@ -660,7 +676,9 @@ ngx_rtmp_record_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
return NGX_OK;
}
for (rctx = ctx->rctx; rctx; rctx = rctx->next) {
rctx = ctx->nodes.elts;
for (n = 0; n < ctx->nodes.nelts; ++n, ++rctx) {
ngx_rtmp_record_node_av(s, rctx, h, in);
}
@ -676,21 +694,18 @@ ngx_rtmp_record_node_av(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx,
ngx_rtmp_header_t ch;
ngx_rtmp_codec_ctx_t *codec_ctx;
ngx_int_t keyframe;
ngx_rtmp_record_node_conf_t *rc;
ngx_rtmp_record_node_t *rc;
rc = rctx->conf;
if (rc->flags & NGX_RTMP_RECORD_OFF) {
if (rctx->file.fd != NGX_INVALID_FILE) {
ngx_rtmp_record_close(s, rctx);
}
ngx_rtmp_record_close(s, rctx);
return NGX_OK;
}
keyframe = (ngx_rtmp_get_video_frame_type(in) == NGX_RTMP_VIDEO_KEY_FRAME);
if (keyframe) {
if (rc->interval != (ngx_msec_t) NGX_CONF_UNSET) {
next = rctx->last;
@ -703,11 +718,7 @@ ngx_rtmp_record_node_av(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx,
ngx_cached_time->msec > next.msec))
{
ngx_rtmp_record_close(s, rctx);
if (ngx_rtmp_record_open(s, rctx) != NGX_OK) {
ngx_log_error(NGX_LOG_CRIT, s->connection->log, 0,
"record: failed");
}
ngx_rtmp_record_open(s, rctx);
}
} else if (rctx->file.fd == NGX_INVALID_FILE) {
@ -761,8 +772,9 @@ ngx_rtmp_record_node_av(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx,
/* AAC header */
if (codec_ctx->aac_header && (rc->flags & NGX_RTMP_RECORD_AUDIO))
{
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: writing AAC header");
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V writing AAC header", &rc->id);
ch.type = NGX_RTMP_MSG_AUDIO;
ch.mlen = ngx_rtmp_record_get_chain_mlen(codec_ctx->aac_header);
@ -777,8 +789,8 @@ ngx_rtmp_record_node_av(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx,
if (codec_ctx->avc_header &&
(rc->flags & (NGX_RTMP_RECORD_VIDEO|NGX_RTMP_RECORD_KEYFRAMES)))
{
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: writing AVC header");
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"record: %V writing AVC header", &rc->id);
ch.type = NGX_RTMP_MSG_VIDEO;
ch.mlen = ngx_rtmp_record_get_chain_mlen(codec_ctx->avc_header);
@ -796,15 +808,6 @@ ngx_rtmp_record_node_av(ngx_rtmp_session_t *s, ngx_rtmp_record_node_ctx_t *rctx,
}
ngx_int_t
ngx_rtmp_record_add(ngx_rtmp_session_t *s, ngx_rtmp_record_node_conf_t *rc)
{
return ngx_rtmp_record_init(s) != NGX_OK ||
ngx_rtmp_record_node_init(s, rc) != NGX_OK
? NGX_ERROR : NGX_OK;
}
static char *
ngx_rtmp_notify_on_record_done(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
@ -843,7 +846,7 @@ ngx_rtmp_notify_on_record_done(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
racf = ngx_rtmp_conf_get_module_app_conf(cf, ngx_rtmp_record_module);
racf->url = u;
racf->def.url = u;
return NGX_CONF_OK;
}

30
ngx_rtmp_record_module.h
View file

@ -10,8 +10,14 @@
#include "ngx_rtmp.h"
#define NGX_RTMP_RECORD_OFF 0x01
#define NGX_RTMP_RECORD_AUDIO 0x02
#define NGX_RTMP_RECORD_VIDEO 0x04
#define NGX_RTMP_RECORD_KEYFRAMES 0x08
typedef struct {
void *tag;
ngx_str_t id;
ngx_uint_t flags;
ngx_str_t path;
size_t max_size;
@ -20,36 +26,32 @@ typedef struct {
ngx_str_t suffix;
ngx_flag_t unique;
ngx_url_t *url;
} ngx_rtmp_record_node_conf_t;
} ngx_rtmp_record_node_t;
typedef ngx_rtmp_record_node_conf_t ngx_rtmp_record_app_conf_t;
typedef struct {
ngx_rtmp_record_node_t def;
ngx_array_t nodes; /* ngx_rtmp_record_node_t * */
} ngx_rtmp_record_app_conf_t;
typedef struct ngx_rtmp_record_node_ctx_s ngx_rtmp_record_node_ctx_t;
struct ngx_rtmp_record_node_ctx_s {
ngx_rtmp_record_node_conf_t *conf;
typedef struct {
ngx_rtmp_record_node_t *conf;
ngx_file_t file;
ngx_uint_t nframes;
uint32_t epoch;
ngx_time_t last;
time_t timestamp;
ngx_rtmp_record_node_ctx_t *next;
};
} ngx_rtmp_record_node_ctx_t;
typedef struct {
ngx_rtmp_record_node_ctx_t *rctx;
ngx_array_t nodes; /* ngx_rtmp_record_node_ctx_t */
u_char name[NGX_RTMP_MAX_NAME];
u_char args[NGX_RTMP_MAX_ARGS];
} ngx_rtmp_record_ctx_t;
ngx_int_t ngx_rtmp_record_add(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_conf_t *rc);
u_char * ngx_rtmp_record_make_path(ngx_rtmp_session_t *s,
ngx_rtmp_record_node_ctx_t *rctx);