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http: zero_data option and X-UStreamer-Latency header

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This commit is contained in:
Devaev Maxim
2021-01-13 03:45:45 +03:00
parent c75863d4bd
commit 5d1183f5c6
4 changed files with 28 additions and 8 deletions
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5
src/ustreamer/data/index.html
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@@ -50,6 +50,11 @@
Without this option, when the frame series is completed, WebKit-based browsers<br>
renders the last frame with a delay.
</li>
<br>
<li>
<b>zero_data=1</b><br>
Disables the actual sending of JPEG data and leaves only response headers.
</li>
</ul>
</li>
<br>

5
src/ustreamer/data/index_html.c
View File

@@ -75,6 +75,11 @@ const char *const HTML_INDEX_PAGE = " \
Without this option, when the frame series is completed, WebKit-based browsers<br> \
renders the last frame with a delay. \
</li> \
<br> \
<li> \
<b>zero_data=1</b><br> \
Disables the actual sending of JPEG data and leaves only response headers. \
</li> \
</ul> \
</li> \
<br> \

25
src/ustreamer/http/server.c
View File

@@ -368,12 +368,14 @@ static void _http_callback_state(struct evhttp_request *request, void *v_server)
for (stream_client_s * client = RUN(stream_clients); client != NULL; client = client->next) {
assert(evbuffer_add_printf(buf,
"\"%s\": {\"fps\": %u, \"extra_headers\": %s, \"advance_headers\": %s, \"dual_final_frames\": %s}%s",
"\"%s\": {\"fps\": %u, \"extra_headers\": %s, \"advance_headers\": %s,"
" \"dual_final_frames\": %s, \"zero_data\": %s}%s",
client->id,
client->fps,
bool_to_string(client->extra_headers),
bool_to_string(client->advance_headers),
bool_to_string(client->dual_final_frames),
bool_to_string(client->zero_data),
(client->next ? ", " : "")
));
}
@@ -462,10 +464,13 @@ static void _http_callback_stream(struct evhttp_request *request, void *v_server
struct evkeyvalq params;
evhttp_parse_query(evhttp_request_get_uri(request), &params);
client->key = uri_get_string(&params, "key");
client->extra_headers = uri_get_true(&params, "extra_headers");
client->advance_headers = uri_get_true(&params, "advance_headers");
client->dual_final_frames = uri_get_true(&params, "dual_final_frames");
# define PARSE_PARAM(_type, _name) client->_name = uri_get_##_type(&params, #_name)
PARSE_PARAM(string, key);
PARSE_PARAM(true, extra_headers);
PARSE_PARAM(true, advance_headers);
PARSE_PARAM(true, dual_final_frames);
PARSE_PARAM(true, zero_data);
# undef PARSE_PARAM
evhttp_clear_headers(&params);
uuid_t uuid;
@@ -592,7 +597,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
"Content-Length: %zu" RN
"X-Timestamp: %.06Lf" RN
"%s",
EX(frame->used),
(!client->zero_data ? EX(frame->used) : 0),
get_now_real(),
(client->extra_headers ? "" : RN)
));
@@ -610,6 +615,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
"X-UStreamer-Expose-Cmp-Time: %.06Lf" RN
"X-UStreamer-Expose-End-Time: %.06Lf" RN
"X-UStreamer-Send-Time: %.06Lf" RN
"X-UStreamer-Latency: %.06Lf" RN
RN,
bool_to_string(EX(frame->online)),
EX(dropped),
@@ -622,12 +628,15 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
EX(expose_begin_ts),
EX(expose_cmp_ts),
EX(expose_end_ts),
now
now,
now - EX(frame->grab_ts)
));
}
}
assert(!evbuffer_add(buf, (void *)EX(frame->data), EX(frame->used)));
if (!client->zero_data) {
assert(!evbuffer_add(buf, (void *)EX(frame->data), EX(frame->used)));
}
assert(evbuffer_add_printf(buf, RN "--" BOUNDARY RN));
if (client->advance_headers) {

1
src/ustreamer/http/server.h
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@@ -81,6 +81,7 @@ typedef struct stream_client_sx {
bool extra_headers;
bool advance_headers;
bool dual_final_frames;
bool zero_data;
char id[37]; // ex. "1b4e28ba-2fa1-11d2-883f-0016d3cca427" + "\0"
bool need_initial;