mirror of
https://github.com/zotanmew/nginx-rtmp-module.git
synced 2024-05-04 04:31:07 +02:00
Change option names, bw fast calculation
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parent
6f0fdcae3a
commit
f365781623
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@ -35,42 +35,42 @@ static u_char *payload; // Payload da
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static ngx_command_t ngx_rtmp_bandwidth_detection_commands[] = {
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{ ngx_string("auto_start_on_connect"),
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{ ngx_string("bw_auto_start"),
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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_flag_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, auto_start_on_connect),
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, auto_start),
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NULL },
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{ ngx_string("auto_sense_bw"),
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{ ngx_string("bw_auto_sense"),
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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_flag_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, auto_sense_bw),
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, auto_sense),
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NULL },
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{ ngx_string("latency_min"),
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{ ngx_string("bw_latency_min"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_rtmp_bandwidth_detection_set_msec_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, latency_min),
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NULL },
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{ ngx_string("latency_max"),
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{ ngx_string("bw_latency_max"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_rtmp_bandwidth_detection_set_msec_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, latency_max),
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NULL },
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{ ngx_string("latency_undef"),
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{ ngx_string("bw_latency_undef"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_rtmp_bandwidth_detection_set_msec_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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offsetof(ngx_rtmp_bandwidth_detection_app_conf_t, latency_undef),
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NULL },
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{ ngx_string("test_time"),
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{ ngx_string("bw_auto_sense_time"),
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NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
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ngx_rtmp_bandwidth_detection_set_msec_slot,
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NGX_RTMP_APP_CONF_OFFSET,
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@ -120,17 +120,17 @@ ngx_rtmp_bandwidth_detection_create_app_conf(ngx_conf_t *cf)
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return NULL;
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}
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acf->auto_start_on_connect = NGX_CONF_UNSET;
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acf->auto_sense_bw = NGX_CONF_UNSET;
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acf->latency_max = NGX_CONF_UNSET_MSEC;
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acf->latency_min = NGX_CONF_UNSET_MSEC;
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acf->latency_undef = NGX_CONF_UNSET_MSEC;
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acf->test_time = NGX_CONF_UNSET_MSEC;
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acf->auto_start = NGX_CONF_UNSET;
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acf->auto_sense = NGX_CONF_UNSET;
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acf->latency_max = NGX_CONF_UNSET_MSEC;
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acf->latency_min = NGX_CONF_UNSET_MSEC;
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acf->latency_undef = NGX_CONF_UNSET_MSEC;
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acf->test_time = NGX_CONF_UNSET_MSEC;
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/* Init payload only once with some random garbage */
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payload = ngx_pcalloc(cf->pool, NGX_RTMP_BANDWIDTH_DETECTION_PAYLOAD_LENGTH + 1);
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for (i=0; i<NGX_RTMP_BANDWIDTH_DETECTION_PAYLOAD_LENGTH; i++) {
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// make sure it is readable
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// make sure it is readable and not contain zero
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payload[i] = (ngx_random() % 32) + 32;
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}
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@ -144,8 +144,8 @@ ngx_rtmp_bandwidth_detection_merge_app_conf(ngx_conf_t *cf, void *parent, void *
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ngx_rtmp_bandwidth_detection_app_conf_t *prev = parent;
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ngx_rtmp_bandwidth_detection_app_conf_t *conf = child;
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ngx_conf_merge_value(conf->auto_start_on_connect, prev->auto_start_on_connect, 0);
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ngx_conf_merge_value(conf->auto_sense_bw, prev->auto_sense_bw, 0);
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ngx_conf_merge_value(conf->auto_start, prev->auto_start, 0);
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ngx_conf_merge_value(conf->auto_sense, prev->auto_sense, 0);
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ngx_conf_merge_msec_value(conf->latency_max, prev->latency_max, 800);
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ngx_conf_merge_msec_value(conf->latency_min, prev->latency_min, 10);
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ngx_conf_merge_msec_value(conf->latency_undef, prev->latency_undef, 100);
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@ -235,7 +235,7 @@ ngx_rtmp_bandwidth_detection_on_result(ngx_rtmp_session_t *s, ngx_rtmp_header_t
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"bandwidth_detection: _result: trans='%f' count='%ui'",
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v.trans, v.count);
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if (acf->auto_sense_bw) {
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if (acf->auto_sense) {
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switch ((ngx_int_t)v.trans) {
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case NGX_RTMP_BANDWIDTH_DETECTION_BWCHECK_TRANS:
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return ngx_rtmp_bandwidth_detection_check_result(s);
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@ -293,13 +293,19 @@ ngx_rtmp_bandwidth_detection_on_error(ngx_rtmp_session_t *s, ngx_rtmp_header_t *
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return NGX_OK;
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}
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/**
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* If onBWCheck / onBWDone unsupported - drop activity
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*/
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switch ((ngx_int_t)v.trans) {
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case NGX_RTMP_BANDWIDTH_DETECTION_BWCHECK_TRANS:
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ngx_log_error(NGX_LOG_WARN, s->connection->log, 0,
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"bandwidth_detection: _error - client not support onBWCheck?");
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ctx->active = 0;
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break;
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case NGX_RTMP_BANDWIDTH_DETECTION_BWDONE_TRANS:
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/* Need to test it. Maybe need to set this before send bwDone. */
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ngx_log_error(NGX_LOG_WARN, s->connection->log, 0,
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"bandwidth_detection: _error - client not support onBWDone?");
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ctx->active = 0;
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break;
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default:
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@ -311,6 +317,7 @@ ngx_rtmp_bandwidth_detection_on_error(ngx_rtmp_session_t *s, ngx_rtmp_header_t *
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/**
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* Start bandwidth detection here
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* Long version with multiple onBWCheck calls
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*/
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static ngx_int_t
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ngx_rtmp_bandwidth_detection_start(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h, ngx_chain_t *in)
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@ -381,7 +388,7 @@ ngx_rtmp_bandwidth_detection_start(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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/**
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* FAST multicall bandwidth detection here
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* FAST bandwidth detection here
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*/
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static ngx_int_t
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ngx_rtmp_bandwidth_detection_fast(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h, ngx_chain_t *in)
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@ -430,23 +437,24 @@ ngx_rtmp_bandwidth_detection_fast(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h, n
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ngx_rtmp_set_ctx(s, bw_ctx, ngx_rtmp_bandwidth_detection_module);
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ngx_memzero(bw_ctx, sizeof(*bw_ctx));
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bw_ctx->bw_begin_time = ngx_cached_time->msec;
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bw_ctx->bw_begin_time2 = 0;
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bw_ctx->latency = acf->latency_min;
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bw_ctx->bytes_out2 = s->out_bytes;
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}
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// To prevent in _result call
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bw_ctx->active = 0;
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bw_ctx->bw_begin_time = ngx_cached_time->msec;
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bw_ctx->bw_begin_time2 = 0;
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bw_ctx->latency = acf->latency_min;
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bw_ctx->bytes_out2 = s->out_bytes;
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ngx_rtmp_send_bwcheck(s, NULL, 0);
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// Do some load for next call
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snd_cnt = 5;
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while (snd_cnt) {
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snd_cnt = 0;
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while (snd_cnt<5) {
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if (NGX_OK != ngx_rtmp_send_bwcheck(s, payload, NGX_RTMP_BANDWIDTH_DETECTION_PAYLOAD_LENGTH)) {
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break;
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}
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snd_cnt--;
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snd_cnt++;
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}
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/* Emulate accumulation between calls */
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@ -455,19 +463,19 @@ ngx_rtmp_bandwidth_detection_fast(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h, n
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bw_ctx->bytes_out = bw_ctx->bytes_out2;
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bw_ctx->bytes_out2 = s->out_bytes;
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timePassed = (bw_ctx->bw_begin_time2 - bw_ctx->bw_begin_time) / snd_cnt;
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bw_ctx->latency = ngx_min(timePassed, acf->latency_max);
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bw_ctx->latency = ngx_max(bw_ctx->latency, acf->latency_min);
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deltaDown = (bw_ctx->bytes_out2 - bw_ctx->bytes_out) *8/1000.;
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deltaTime = ( (bw_ctx->bw_begin_time2 - bw_ctx->bw_begin_time) - (bw_ctx->latency))/1000.;
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deltaTime = ( (bw_ctx->bw_begin_time2 - bw_ctx->bw_begin_time) - (bw_ctx->latency*snd_cnt))/1000.;
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if (deltaTime <= 0) deltaTime = (bw_ctx->bw_begin_time2 - bw_ctx->bw_begin_time)/1000.;
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if (deltaTime <= 0) deltaTime = 1.;
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kbitDown = deltaDown/deltaTime;
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timePassed = bw_ctx->bw_begin_time2 - bw_ctx->bw_begin_time;
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bw_ctx->latency = ngx_min(timePassed, acf->latency_max);
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bw_ctx->latency = ngx_max(bw_ctx->latency, acf->latency_min);
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"bandwidth_detection: fast - check done!");
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ngx_log_debug5(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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@ -493,7 +501,7 @@ ngx_rtmp_bandwidth_detection_wrapper(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h
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return NGX_ERROR;
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}
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if (acf->auto_sense_bw) {
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if (acf->auto_sense) {
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return ngx_rtmp_bandwidth_detection_start(s, h, in);
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} else {
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return ngx_rtmp_bandwidth_detection_fast(s, h, in);
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@ -578,7 +586,6 @@ ngx_rtmp_bandwidth_detection_clientcheck(ngx_rtmp_session_t *s, ngx_rtmp_header_
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"bandwidth_detection: bwcheck: trans='%f' time='%ui'",
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v.trans, v.time);
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// Send first packet with empty payload - for latency calculation
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return ngx_rtmp_send_onclientbwcheck(s, v.trans, s->out_bytes, s->in_bytes, v.time);
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}
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@ -703,7 +710,7 @@ ngx_rtmp_bandwidth_detection_connect(ngx_rtmp_session_t *s, ngx_rtmp_connect_t *
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return NGX_ERROR;
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}
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if (acf->auto_start_on_connect) {
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if (acf->auto_start) {
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result = ngx_rtmp_bandwidth_detection_wrapper(s, NULL, NULL);
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}
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}
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@ -35,9 +35,9 @@ struct ngx_rtmp_bandwidth_detection_ctx_s {
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};
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typedef struct {
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ngx_flag_t auto_start_on_connect; // Start bandwidth check on every connection
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ngx_flag_t auto_start; // Start bandwidth check on every connection
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// without client call
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ngx_flag_t auto_sense_bw; // Do multiple calls onBWCheck, and onBWDone
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ngx_flag_t auto_sense; // Do multiple calls onBWCheck, and onBWDone
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// Or just fast onBWDone
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ngx_msec_t latency_min; // Minimal detectable latency, msec
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ngx_msec_t latency_max; // Maximum latency assumed, msec
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