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1278 lines
32 KiB
1278 lines
32 KiB
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/*
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* Copyright (C) Roman Arutyunyan
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <nginx.h>
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#include "ngx_rtmp_play_module.h"
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#include "ngx_rtmp_cmd_module.h"
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#include "ngx_rtmp_netcall_module.h"
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#include "ngx_rtmp_streams.h"
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static ngx_rtmp_play_pt next_play;
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static ngx_rtmp_close_stream_pt next_close_stream;
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static ngx_rtmp_seek_pt next_seek;
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static ngx_rtmp_pause_pt next_pause;
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static char *ngx_rtmp_play_url(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static void *ngx_rtmp_play_create_main_conf(ngx_conf_t *cf);
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static ngx_int_t ngx_rtmp_play_postconfiguration(ngx_conf_t *cf);
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static void * ngx_rtmp_play_create_app_conf(ngx_conf_t *cf);
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static char * ngx_rtmp_play_merge_app_conf(ngx_conf_t *cf,
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void *parent, void *child);
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static ngx_int_t ngx_rtmp_play_do_init(ngx_rtmp_session_t *s);
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static ngx_int_t ngx_rtmp_play_do_done(ngx_rtmp_session_t *s);
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static ngx_int_t ngx_rtmp_play_do_start(ngx_rtmp_session_t *s);
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static ngx_int_t ngx_rtmp_play_do_stop(ngx_rtmp_session_t *s);
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static ngx_int_t ngx_rtmp_play_do_seek(ngx_rtmp_session_t *s,
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ngx_uint_t timestamp);
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static ngx_int_t ngx_rtmp_play_play(ngx_rtmp_session_t *s, ngx_rtmp_play_t *v);
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static ngx_int_t ngx_rtmp_play_seek(ngx_rtmp_session_t *s, ngx_rtmp_seek_t *v);
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static ngx_int_t ngx_rtmp_play_pause(ngx_rtmp_session_t *s,
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ngx_rtmp_pause_t *v);
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static void ngx_rtmp_play_send(ngx_event_t *e);
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static ngx_int_t ngx_rtmp_play_open(ngx_rtmp_session_t *s, double start);
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static ngx_int_t ngx_rtmp_play_remote_handle(ngx_rtmp_session_t *s,
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void *arg, ngx_chain_t *in);
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static ngx_chain_t * ngx_rtmp_play_remote_create(ngx_rtmp_session_t *s,
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void *arg, ngx_pool_t *pool);
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static ngx_int_t ngx_rtmp_play_open_remote(ngx_rtmp_session_t *s,
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ngx_rtmp_play_t *v);
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static ngx_int_t ngx_rtmp_play_next_entry(ngx_rtmp_session_t *s,
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ngx_rtmp_play_t *v);
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static ngx_rtmp_play_entry_t * ngx_rtmp_play_get_current_entry(
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ngx_rtmp_session_t *s);
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static void ngx_rtmp_play_cleanup_local_file(ngx_rtmp_session_t *s);
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static void ngx_rtmp_play_copy_local_file(ngx_rtmp_session_t *s, u_char *name);
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static u_char * ngx_rtmp_play_get_local_file_path(ngx_rtmp_session_t *s);
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static ngx_command_t ngx_rtmp_play_commands[] = {
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{ ngx_string("play"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_1MORE,
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ngx_rtmp_play_url,
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NGX_RTMP_APP_CONF_OFFSET,
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0,
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NULL },
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{ ngx_string("play_temp_path"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_play_app_conf_t, temp_path),
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NULL },
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{ ngx_string("play_local_path"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_play_app_conf_t, local_path),
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NULL },
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ngx_null_command
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};
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static ngx_rtmp_module_t ngx_rtmp_play_module_ctx = {
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NULL, /* preconfiguration */
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ngx_rtmp_play_postconfiguration, /* postconfiguration */
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ngx_rtmp_play_create_main_conf, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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ngx_rtmp_play_create_app_conf, /* create app configuration */
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ngx_rtmp_play_merge_app_conf /* merge app configuration */
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};
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ngx_module_t ngx_rtmp_play_module = {
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NGX_MODULE_V1,
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&ngx_rtmp_play_module_ctx, /* module context */
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ngx_rtmp_play_commands, /* module directives */
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NGX_RTMP_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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#define NGX_RTMP_PLAY_TMP_FILE "nginx-rtmp-vod."
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static void *
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ngx_rtmp_play_create_main_conf(ngx_conf_t *cf)
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{
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ngx_rtmp_play_main_conf_t *pmcf;
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pmcf = ngx_pcalloc(cf->pool, sizeof(ngx_rtmp_play_main_conf_t));
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if (pmcf == NULL) {
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return NULL;
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}
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if (ngx_array_init(&pmcf->fmts, cf->pool, 1,
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sizeof(ngx_rtmp_play_fmt_t *))
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!= NGX_OK)
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{
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return NULL;
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}
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return pmcf;
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}
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static void *
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ngx_rtmp_play_create_app_conf(ngx_conf_t *cf)
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{
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ngx_rtmp_play_app_conf_t *pacf;
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pacf = ngx_pcalloc(cf->pool, sizeof(ngx_rtmp_play_app_conf_t));
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if (pacf == NULL) {
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return NULL;
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}
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pacf->nbuckets = 1024;
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return pacf;
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}
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static char *
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ngx_rtmp_play_merge_app_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_rtmp_play_app_conf_t *prev = parent;
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ngx_rtmp_play_app_conf_t *conf = child;
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ngx_rtmp_play_entry_t **ppe;
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ngx_conf_merge_str_value(conf->temp_path, prev->temp_path, "/tmp");
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ngx_conf_merge_str_value(conf->local_path, prev->local_path, "");
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if (prev->entries.nelts == 0) {
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goto done;
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}
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if (conf->entries.nelts == 0) {
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conf->entries = prev->entries;
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goto done;
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}
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ppe = ngx_array_push_n(&conf->entries, prev->entries.nelts);
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if (ppe == NULL) {
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return NGX_CONF_ERROR;
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}
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ngx_memcpy(ppe, prev->entries.elts, prev->entries.nelts * sizeof(void *));
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done:
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if (conf->entries.nelts == 0) {
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return NGX_CONF_OK;
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}
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conf->ctx = ngx_pcalloc(cf->pool, sizeof(void *) * conf->nbuckets);
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if (conf->ctx == NULL) {
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return NGX_CONF_ERROR;
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}
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return NGX_CONF_OK;
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}
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static ngx_int_t
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ngx_rtmp_play_join(ngx_rtmp_session_t *s)
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{
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ngx_rtmp_play_ctx_t *ctx, **pctx;
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ngx_rtmp_play_app_conf_t *pacf;
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ngx_uint_t h;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: join");
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pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL || ctx->joined) {
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return NGX_ERROR;
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}
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h = ngx_hash_key(ctx->name, ngx_strlen(ctx->name));
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pctx = &pacf->ctx[h % pacf->nbuckets];
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while (*pctx) {
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if (!ngx_strncmp((*pctx)->name, ctx->name, NGX_RTMP_MAX_NAME)) {
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break;
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}
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pctx = &(*pctx)->next;
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}
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ctx->next = *pctx;
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*pctx = ctx;
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ctx->joined = 1;
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return NGX_OK;
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}
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static ngx_int_t
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ngx_rtmp_play_leave(ngx_rtmp_session_t *s)
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{
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ngx_rtmp_play_ctx_t *ctx, **pctx;
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ngx_rtmp_play_app_conf_t *pacf;
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ngx_uint_t h;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: leave");
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pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL || !ctx->joined) {
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return NGX_ERROR;
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}
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h = ngx_hash_key(ctx->name, ngx_strlen(ctx->name));
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pctx = &pacf->ctx[h % pacf->nbuckets];
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while (*pctx && *pctx != ctx) {
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pctx = &(*pctx)->next;
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}
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if (*pctx == NULL) {
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return NGX_ERROR;
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}
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*pctx = (*pctx)->next;
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ctx->joined = 0;
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return NGX_OK;
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}
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static void
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ngx_rtmp_play_send(ngx_event_t *e)
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{
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ngx_rtmp_session_t *s = e->data;
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ngx_rtmp_play_ctx_t *ctx;
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ngx_int_t rc;
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ngx_uint_t ts;
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL || ctx->fmt == NULL || ctx->fmt->send == NULL) {
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return;
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}
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ts = 0;
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rc = ctx->fmt->send(s, &ctx->file, &ts);
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if (rc > 0) {
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ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: send schedule %i", rc);
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ngx_add_timer(e, rc);
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return;
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}
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if (rc == NGX_AGAIN) {
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: send buffer full");
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ngx_post_event(e, &s->posted_dry_events);
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return;
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}
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if (rc == NGX_OK) {
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: send restart");
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ngx_post_event(e, &ngx_posted_events);
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return;
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}
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: send done");
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ngx_rtmp_send_stream_eof(s, NGX_RTMP_MSID);
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ngx_rtmp_send_play_status(s, "NetStream.Play.Complete", "status", ts, 0);
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ngx_rtmp_send_status(s, "NetStream.Play.Stop", "status", "Stopped");
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}
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static ngx_int_t
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ngx_rtmp_play_do_init(ngx_rtmp_session_t *s)
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{
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ngx_rtmp_play_ctx_t *ctx;
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL) {
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return NGX_ERROR;
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}
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if (ctx->fmt && ctx->fmt->init &&
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ctx->fmt->init(s, &ctx->file, ctx->aindex, ctx->vindex) != NGX_OK)
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{
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return NGX_ERROR;
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}
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return NGX_OK;
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}
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static ngx_int_t
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ngx_rtmp_play_do_done(ngx_rtmp_session_t *s)
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{
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ngx_rtmp_play_ctx_t *ctx;
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL) {
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return NGX_ERROR;
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}
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if (ctx->fmt && ctx->fmt->done &&
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ctx->fmt->done(s, &ctx->file) != NGX_OK)
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{
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return NGX_ERROR;
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}
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return NGX_OK;
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}
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static ngx_int_t
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ngx_rtmp_play_do_start(ngx_rtmp_session_t *s)
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{
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ngx_rtmp_play_ctx_t *ctx;
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL) {
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return NGX_ERROR;
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}
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: start");
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if (ctx->fmt && ctx->fmt->start &&
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ctx->fmt->start(s, &ctx->file) != NGX_OK)
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{
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return NGX_ERROR;
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}
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ngx_post_event((&ctx->send_evt), &ngx_posted_events);
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ctx->playing = 1;
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return NGX_OK;
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}
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static ngx_int_t
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ngx_rtmp_play_do_seek(ngx_rtmp_session_t *s, ngx_uint_t timestamp)
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{
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ngx_rtmp_play_ctx_t *ctx;
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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if (ctx == NULL) {
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return NGX_ERROR;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"play: seek timestamp=%ui", timestamp);
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if (ctx->fmt && ctx->fmt->seek &&
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ctx->fmt->seek(s, &ctx->file, timestamp) != NGX_OK)
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{
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return NGX_ERROR;
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}
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|
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if (ctx->playing) {
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ngx_post_event((&ctx->send_evt), &ngx_posted_events);
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}
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return NGX_OK;
|
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}
|
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|
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static ngx_int_t
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ngx_rtmp_play_do_stop(ngx_rtmp_session_t *s)
|
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{
|
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ngx_rtmp_play_ctx_t *ctx;
|
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|
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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|
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if (ctx == NULL) {
|
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return NGX_ERROR;
|
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}
|
|
|
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
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"play: stop");
|
|
|
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if (ctx->send_evt.timer_set) {
|
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ngx_del_timer(&ctx->send_evt);
|
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}
|
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|
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#if (nginx_version >= 1007005)
|
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if (ctx->send_evt.posted)
|
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#else
|
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if (ctx->send_evt.prev)
|
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#endif
|
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{
|
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ngx_delete_posted_event((&ctx->send_evt));
|
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}
|
|
|
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if (ctx->fmt && ctx->fmt->stop &&
|
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ctx->fmt->stop(s, &ctx->file) != NGX_OK)
|
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{
|
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return NGX_ERROR;
|
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}
|
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|
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ctx->playing = 0;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
/* This function returns pointer to a static buffer */
|
|
|
|
static u_char *
|
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ngx_rtmp_play_get_local_file_path(ngx_rtmp_session_t *s)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
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u_char *p;
|
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static u_char path[NGX_MAX_PATH + 1];
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|
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pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
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|
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ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
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|
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p = ngx_snprintf(path, NGX_MAX_PATH, "%V/" NGX_RTMP_PLAY_TMP_FILE "%ui",
|
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&pacf->temp_path, ctx->file_id);
|
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*p = 0;
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|
|
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return path;
|
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}
|
|
|
|
|
|
static void
|
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ngx_rtmp_play_copy_local_file(ngx_rtmp_session_t *s, u_char *name)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
u_char *path, *p;
|
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static u_char dpath[NGX_MAX_PATH + 1];
|
|
|
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pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
|
if (pacf == NULL) {
|
|
return;
|
|
}
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
if (ctx == NULL || ctx->file_id == 0) {
|
|
return;
|
|
}
|
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|
|
path = ngx_rtmp_play_get_local_file_path(s);
|
|
|
|
p = ngx_snprintf(dpath, NGX_MAX_PATH, "%V/%s%V", &pacf->local_path,
|
|
name + ctx->pfx_size, &ctx->sfx);
|
|
*p = 0;
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: copy local file '%s' to '%s'", path, dpath);
|
|
|
|
if (ngx_rename_file(path, dpath) == 0) {
|
|
ctx->file_id = 0;
|
|
return;
|
|
}
|
|
|
|
ngx_log_error(NGX_LOG_ERR, s->connection->log, ngx_errno,
|
|
"play: error copying local file '%s' to '%s'",
|
|
path, dpath);
|
|
|
|
ngx_rtmp_play_cleanup_local_file(s);
|
|
}
|
|
|
|
|
|
static void
|
|
ngx_rtmp_play_cleanup_local_file(ngx_rtmp_session_t *s)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
u_char *path;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
if (ctx == NULL || ctx->file_id == 0) {
|
|
return;
|
|
}
|
|
|
|
path = ngx_rtmp_play_get_local_file_path(s);
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: deleting local file '%s'", path);
|
|
|
|
ctx->file_id = 0;
|
|
|
|
ngx_delete_file(path);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_close_stream(ngx_rtmp_session_t *s, ngx_rtmp_close_stream_t *v)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
if (ctx == NULL) {
|
|
goto next;
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: close_stream");
|
|
|
|
ngx_rtmp_play_do_stop(s);
|
|
|
|
ngx_rtmp_play_do_done(s);
|
|
|
|
if (ctx->file.fd != NGX_INVALID_FILE) {
|
|
ngx_close_file(ctx->file.fd);
|
|
ctx->file.fd = NGX_INVALID_FILE;
|
|
|
|
ngx_rtmp_send_stream_eof(s, NGX_RTMP_MSID);
|
|
|
|
ngx_rtmp_send_status(s, "NetStream.Play.Stop", "status",
|
|
"Stop video on demand");
|
|
}
|
|
|
|
if (ctx->file_id) {
|
|
ngx_rtmp_play_cleanup_local_file(s);
|
|
}
|
|
|
|
ngx_rtmp_play_leave(s);
|
|
|
|
next:
|
|
return next_close_stream(s, v);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_seek(ngx_rtmp_session_t *s, ngx_rtmp_seek_t *v)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
if (ctx == NULL || ctx->file.fd == NGX_INVALID_FILE) {
|
|
goto next;
|
|
}
|
|
|
|
if (!ctx->opened) {
|
|
ctx->post_seek = (ngx_uint_t) v->offset;
|
|
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: post seek=%ui", ctx->post_seek);
|
|
goto next;
|
|
}
|
|
|
|
if (ngx_rtmp_send_stream_eof(s, NGX_RTMP_MSID) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_rtmp_play_do_seek(s, (ngx_uint_t) v->offset);
|
|
|
|
if (ngx_rtmp_send_status(s, "NetStream.Seek.Notify", "status", "Seeking")
|
|
!= NGX_OK)
|
|
{
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_send_stream_begin(s, NGX_RTMP_MSID) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
next:
|
|
return next_seek(s, v);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_pause(ngx_rtmp_session_t *s, ngx_rtmp_pause_t *v)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
if (ctx == NULL || ctx->file.fd == NGX_INVALID_FILE) {
|
|
goto next;
|
|
}
|
|
|
|
if (!ctx->opened) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: pause ignored");
|
|
goto next;
|
|
}
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: pause=%i timestamp=%f",
|
|
(ngx_int_t) v->pause, v->position);
|
|
|
|
if (v->pause) {
|
|
if (ngx_rtmp_send_status(s, "NetStream.Pause.Notify", "status",
|
|
"Paused video on demand")
|
|
!= NGX_OK)
|
|
{
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_rtmp_play_do_stop(s);
|
|
|
|
} else {
|
|
if (ngx_rtmp_send_status(s, "NetStream.Unpause.Notify", "status",
|
|
"Unpaused video on demand")
|
|
!= NGX_OK)
|
|
{
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_rtmp_play_do_start(s); /*TODO: v->position? */
|
|
}
|
|
|
|
next:
|
|
return next_pause(s, v);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_parse_index(char type, u_char *args)
|
|
{
|
|
u_char *p, c;
|
|
static u_char name[] = "xindex=";
|
|
|
|
name[0] = (u_char) type;
|
|
|
|
for ( ;; ) {
|
|
p = (u_char *) ngx_strstr(args, name);
|
|
if (p == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
if (p != args) {
|
|
c = *(p - 1);
|
|
if (c != '?' && c != '&') {
|
|
args = p + 1;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return atoi((char *) p + (sizeof(name) - 1));
|
|
}
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_play(ngx_rtmp_session_t *s, ngx_rtmp_play_t *v)
|
|
{
|
|
ngx_rtmp_play_main_conf_t *pmcf;
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
u_char *p;
|
|
ngx_rtmp_play_fmt_t *fmt, **pfmt;
|
|
ngx_str_t *pfx, *sfx;
|
|
ngx_str_t name;
|
|
ngx_uint_t n;
|
|
|
|
pmcf = ngx_rtmp_get_module_main_conf(s, ngx_rtmp_play_module);
|
|
|
|
pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
|
|
|
if (pacf == NULL || pacf->entries.nelts == 0) {
|
|
goto next;
|
|
}
|
|
|
|
ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
"play: play name='%s' timestamp=%i",
|
|
v->name, (ngx_int_t) v->start);
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
if (ctx && ctx->file.fd != NGX_INVALID_FILE) {
|
|
ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
"play: already playing");
|
|
goto next;
|
|
}
|
|
|
|
/* check for double-dot in v->name;
|
|
* we should not move out of play directory */
|
|
for (p = v->name; *p; ++p) {
|
|
if (ngx_path_separator(p[0]) &&
|
|
p[1] == '.' && p[2] == '.' &&
|
|
ngx_path_separator(p[3]))
|
|
{
|
|
ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
"play: bad name '%s'", v->name);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
if (ctx == NULL) {
|
|
ctx = ngx_palloc(s->connection->pool, sizeof(ngx_rtmp_play_ctx_t));
|
|
ngx_rtmp_set_ctx(s, ctx, ngx_rtmp_play_module);
|
|
}
|
|
|
|
ngx_memzero(ctx, sizeof(*ctx));
|
|
|
|
ctx->session = s;
|
|
ctx->aindex = ngx_rtmp_play_parse_index('a', v->args);
|
|
ctx->vindex = ngx_rtmp_play_parse_index('v', v->args);
|
|
|
|
ctx->file.log = s->connection->log;
|
|
|
|
ngx_memcpy(ctx->name, v->name, NGX_RTMP_MAX_NAME);
|
|
|
|
name.len = ngx_strlen(v->name);
|
|
name.data = v->name;
|
|
|
|
pfmt = pmcf->fmts.elts;
|
|
|
|
for (n = 0; n < pmcf->fmts.nelts; ++n, ++pfmt) {
|
|
fmt = *pfmt;
|
|
|
|
pfx = &fmt->pfx;
|
|
sfx = &fmt->sfx;
|
|
|
|
if (pfx->len == 0 && ctx->fmt == NULL) {
|
|
ctx->fmt = fmt;
|
|
}
|
|
|
|
if (pfx->len && name.len >= pfx->len &&
|
|
ngx_strncasecmp(pfx->data, name.data, pfx->len) == 0)
|
|
{
|
|
ctx->pfx_size = pfx->len;
|
|
ctx->fmt = fmt;
|
|
|
|
break;
|
|
}
|
|
|
|
if (name.len >= sfx->len &&
|
|
ngx_strncasecmp(sfx->data, name.data + name.len - sfx->len,
|
|
sfx->len) == 0)
|
|
{
|
|
ctx->fmt = fmt;
|
|
}
|
|
}
|
|
|
|
if (ctx->fmt == NULL) {
|
|
ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
"play: fmt not found");
|
|
goto next;
|
|
}
|
|
|
|
ctx->file.fd = NGX_INVALID_FILE;
|
|
ctx->nentry = NGX_CONF_UNSET_UINT;
|
|
ctx->post_seek = NGX_CONF_UNSET_UINT;
|
|
|
|
sfx = &ctx->fmt->sfx;
|
|
|
|
if (name.len < sfx->len ||
|
|
ngx_strncasecmp(sfx->data, name.data + name.len - sfx->len,
|
|
sfx->len))
|
|
{
|
|
ctx->sfx = *sfx;
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: fmt=%V", &ctx->fmt->name);
|
|
|
|
return ngx_rtmp_play_next_entry(s, v);
|
|
|
|
next:
|
|
return next_play(s, v);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_next_entry(ngx_rtmp_session_t *s, ngx_rtmp_play_t *v)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_rtmp_play_entry_t *pe;
|
|
u_char *p;
|
|
static u_char path[NGX_MAX_PATH + 1];
|
|
|
|
pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
for ( ;; ) {
|
|
|
|
if (ctx->file.fd != NGX_INVALID_FILE) {
|
|
ngx_close_file(ctx->file.fd);
|
|
ctx->file.fd = NGX_INVALID_FILE;
|
|
}
|
|
|
|
if (ctx->file_id) {
|
|
ngx_rtmp_play_cleanup_local_file(s);
|
|
}
|
|
|
|
ctx->nentry = (ctx->nentry == NGX_CONF_UNSET_UINT ?
|
|
0 : ctx->nentry + 1);
|
|
|
|
if (ctx->nentry >= pacf->entries.nelts) {
|
|
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: all entries failed");
|
|
|
|
ngx_rtmp_send_status(s, "NetStream.Play.StreamNotFound", "error",
|
|
"Video on demand stream not found");
|
|
break;
|
|
}
|
|
|
|
pe = ngx_rtmp_play_get_current_entry(s);
|
|
|
|
ngx_log_debug4(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: trying %s entry %ui/%uz '%V'",
|
|
pe->url ? "remote" : "local",
|
|
ctx->nentry + 1, pacf->entries.nelts,
|
|
pe->url ? &pe->url->url : pe->root);
|
|
|
|
/* open remote */
|
|
|
|
if (pe->url) {
|
|
return ngx_rtmp_play_open_remote(s, v);
|
|
}
|
|
|
|
/* open local */
|
|
|
|
p = ngx_snprintf(path, NGX_MAX_PATH, "%V/%s%V",
|
|
pe->root, v->name + ctx->pfx_size, &ctx->sfx);
|
|
*p = 0;
|
|
|
|
ctx->file.fd = ngx_open_file(path, NGX_FILE_RDONLY, NGX_FILE_OPEN,
|
|
NGX_FILE_DEFAULT_ACCESS);
|
|
|
|
if (ctx->file.fd == NGX_INVALID_FILE) {
|
|
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, ngx_errno,
|
|
"play: error opening file '%s'", path);
|
|
continue;
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: open local file '%s'", path);
|
|
|
|
if (ngx_rtmp_play_open(s, v->start) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
return next_play(s, v);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_open(ngx_rtmp_session_t *s, double start)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_event_t *e;
|
|
ngx_uint_t timestamp;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
if (ctx->file.fd == NGX_INVALID_FILE) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_send_stream_begin(s, NGX_RTMP_MSID) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_send_status(s, "NetStream.Play.Start", "status",
|
|
"Start video on demand")
|
|
!= NGX_OK)
|
|
{
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_play_join(s) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
e = &ctx->send_evt;
|
|
e->data = s;
|
|
e->handler = ngx_rtmp_play_send;
|
|
e->log = s->connection->log;
|
|
|
|
ngx_rtmp_send_recorded(s, 1);
|
|
|
|
if (ngx_rtmp_send_sample_access(s) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_play_do_init(s) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
timestamp = ctx->post_seek != NGX_CONF_UNSET_UINT ? ctx->post_seek :
|
|
(start < 0 ? 0 : (ngx_uint_t) start);
|
|
|
|
if (ngx_rtmp_play_do_seek(s, timestamp) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
if (ngx_rtmp_play_do_start(s) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ctx->opened = 1;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static ngx_chain_t *
|
|
ngx_rtmp_play_remote_create(ngx_rtmp_session_t *s, void *arg, ngx_pool_t *pool)
|
|
{
|
|
ngx_rtmp_play_t *v = arg;
|
|
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_rtmp_play_entry_t *pe;
|
|
ngx_str_t *addr_text, uri;
|
|
u_char *p, *name;
|
|
size_t args_len, name_len, len;
|
|
static ngx_str_t text_plain = ngx_string("text/plain");
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
pe = ngx_rtmp_play_get_current_entry(s);
|
|
|
|
name = v->name + ctx->pfx_size;
|
|
|
|
name_len = ngx_strlen(name);
|
|
args_len = ngx_strlen(v->args);
|
|
addr_text = &s->connection->addr_text;
|
|
|
|
len = pe->url->uri.len + 1 +
|
|
name_len + ctx->sfx.len +
|
|
sizeof("?addr=") + addr_text->len * 3 +
|
|
1 + args_len;
|
|
|
|
uri.data = ngx_palloc(pool, len);
|
|
if (uri.data == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
p = uri.data;
|
|
|
|
p = ngx_cpymem(p, pe->url->uri.data, pe->url->uri.len);
|
|
|
|
if (p == uri.data || p[-1] != '/') {
|
|
*p++ = '/';
|
|
}
|
|
|
|
p = ngx_cpymem(p, name, name_len);
|
|
p = ngx_cpymem(p, ctx->sfx.data, ctx->sfx.len);
|
|
p = ngx_cpymem(p, (u_char*)"?addr=", sizeof("&addr=") -1);
|
|
p = (u_char*)ngx_escape_uri(p, addr_text->data, addr_text->len,
|
|
NGX_ESCAPE_ARGS);
|
|
if (args_len) {
|
|
*p++ = '&';
|
|
p = (u_char *) ngx_cpymem(p, v->args, args_len);
|
|
}
|
|
|
|
uri.len = p - uri.data;
|
|
|
|
return ngx_rtmp_netcall_http_format_request(NGX_RTMP_NETCALL_HTTP_GET,
|
|
&pe->url->host, &uri,
|
|
NULL, NULL, pool, &text_plain);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_remote_handle(ngx_rtmp_session_t *s, void *arg, ngx_chain_t *in)
|
|
{
|
|
ngx_rtmp_play_t *v = arg;
|
|
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
if (ctx->nbody == 0) {
|
|
return ngx_rtmp_play_next_entry(s, v);
|
|
}
|
|
|
|
if (ctx->file_id) {
|
|
ngx_rtmp_play_copy_local_file(s, v->name);
|
|
}
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: open remote file");
|
|
|
|
if (ngx_rtmp_play_open(s, v->start) != NGX_OK) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return next_play(s, (ngx_rtmp_play_t *)arg);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_remote_sink(ngx_rtmp_session_t *s, ngx_chain_t *in)
|
|
{
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_buf_t *b;
|
|
ngx_int_t rc;
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
/* skip HTTP header */
|
|
while (in && ctx->ncrs != 2) {
|
|
b = in->buf;
|
|
|
|
for (; b->pos != b->last && ctx->ncrs != 2; ++b->pos) {
|
|
switch (*b->pos) {
|
|
case '\n':
|
|
++ctx->ncrs;
|
|
case '\r':
|
|
break;
|
|
default:
|
|
ctx->ncrs = 0;
|
|
}
|
|
/* 10th header byte is HTTP response header */
|
|
if (++ctx->nheader == 10 && *b->pos != (u_char) '2') {
|
|
ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
"play: remote HTTP response code: %cxx",
|
|
*b->pos);
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
if (b->pos == b->last) {
|
|
in = in->next;
|
|
}
|
|
}
|
|
|
|
/* write to temp file */
|
|
for (; in; in = in->next) {
|
|
b = in->buf;
|
|
|
|
if (b->pos == b->last) {
|
|
continue;
|
|
}
|
|
|
|
rc = ngx_write_fd(ctx->file.fd, b->pos, b->last - b->pos);
|
|
|
|
if (rc == NGX_ERROR) {
|
|
ngx_log_error(NGX_LOG_INFO, s->connection->log, ngx_errno,
|
|
"play: error writing to temp file");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ctx->nbody += rc;
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static ngx_rtmp_play_entry_t *
|
|
ngx_rtmp_play_get_current_entry(ngx_rtmp_session_t *s)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_rtmp_play_entry_t **ppe;
|
|
|
|
pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
ppe = pacf->entries.elts;
|
|
|
|
return ppe[ctx->nentry];
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_open_remote(ngx_rtmp_session_t *s, ngx_rtmp_play_t *v)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf;
|
|
ngx_rtmp_play_ctx_t *ctx;
|
|
ngx_rtmp_play_entry_t *pe;
|
|
ngx_rtmp_netcall_init_t ci;
|
|
u_char *path;
|
|
ngx_err_t err;
|
|
static ngx_uint_t file_id;
|
|
|
|
pacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_play_module);
|
|
|
|
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_play_module);
|
|
|
|
ctx->ncrs = 0;
|
|
ctx->nheader = 0;
|
|
ctx->nbody = 0;
|
|
|
|
for ( ;; ) {
|
|
ctx->file_id = ++file_id;
|
|
|
|
/* no zero after overflow */
|
|
if (ctx->file_id == 0) {
|
|
continue;
|
|
}
|
|
|
|
path = ngx_rtmp_play_get_local_file_path(s);
|
|
|
|
ctx->file.fd = ngx_open_tempfile(path, pacf->local_path.len, 0);
|
|
|
|
if (pacf->local_path.len == 0) {
|
|
ctx->file_id = 0;
|
|
}
|
|
|
|
if (ctx->file.fd != NGX_INVALID_FILE) {
|
|
break;
|
|
}
|
|
|
|
err = ngx_errno;
|
|
|
|
if (err != NGX_EEXIST) {
|
|
ctx->file_id = 0;
|
|
|
|
ngx_log_error(NGX_LOG_INFO, s->connection->log, err,
|
|
"play: failed to create temp file");
|
|
|
|
return NGX_ERROR;
|
|
}
|
|
}
|
|
|
|
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
|
|
"play: temp file '%s' file_id=%ui",
|
|
path, ctx->file_id);
|
|
|
|
pe = ngx_rtmp_play_get_current_entry(s);
|
|
|
|
ngx_memzero(&ci, sizeof(ci));
|
|
|
|
ci.url = pe->url;
|
|
ci.create = ngx_rtmp_play_remote_create;
|
|
ci.sink = ngx_rtmp_play_remote_sink;
|
|
ci.handle = ngx_rtmp_play_remote_handle;
|
|
ci.arg = v;
|
|
ci.argsize = sizeof(*v);
|
|
|
|
return ngx_rtmp_netcall_create(s, &ci);
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_rtmp_play_url(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
ngx_rtmp_play_app_conf_t *pacf = conf;
|
|
|
|
ngx_rtmp_play_entry_t *pe, **ppe;
|
|
ngx_str_t url;
|
|
ngx_url_t *u;
|
|
size_t add, n;
|
|
ngx_str_t *value;
|
|
|
|
if (pacf->entries.nalloc == 0 &&
|
|
ngx_array_init(&pacf->entries, cf->pool, 1, sizeof(void *)) != NGX_OK)
|
|
{
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
value = cf->args->elts;
|
|
|
|
for (n = 1; n < cf->args->nelts; ++n) {
|
|
|
|
ppe = ngx_array_push(&pacf->entries);
|
|
if (ppe == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
pe = ngx_pcalloc(cf->pool, sizeof(ngx_rtmp_play_entry_t));
|
|
if (pe == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
*ppe = pe;
|
|
|
|
if (ngx_strncasecmp(value[n].data, (u_char *) "http://", 7)) {
|
|
|
|
/* local file */
|
|
|
|
pe->root = ngx_palloc(cf->pool, sizeof(ngx_str_t));
|
|
if (pe->root == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
*pe->root = value[n];
|
|
|
|
continue;
|
|
}
|
|
|
|
/* http case */
|
|
|
|
url = value[n];
|
|
|
|
add = sizeof("http://") - 1;
|
|
|
|
url.data += add;
|
|
url.len -= add;
|
|
|
|
u = ngx_pcalloc(cf->pool, sizeof(ngx_url_t));
|
|
if (u == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
u->url.len = url.len;
|
|
u->url.data = url.data;
|
|
u->default_port = 80;
|
|
u->uri_part = 1;
|
|
|
|
if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
|
if (u->err) {
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
"%s in url \"%V\"", u->err, &u->url);
|
|
}
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
pe->url = u;
|
|
}
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_rtmp_play_postconfiguration(ngx_conf_t *cf)
|
|
{
|
|
next_play = ngx_rtmp_play;
|
|
ngx_rtmp_play = ngx_rtmp_play_play;
|
|
|
|
next_close_stream = ngx_rtmp_close_stream;
|
|
ngx_rtmp_close_stream = ngx_rtmp_play_close_stream;
|
|
|
|
next_seek = ngx_rtmp_seek;
|
|
ngx_rtmp_seek = ngx_rtmp_play_seek;
|
|
|
|
next_pause = ngx_rtmp_pause;
|
|
ngx_rtmp_pause = ngx_rtmp_play_pause;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|