X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=httpd.cpp;h=29923f9430413ee5dec3175e0aaae42a7f257cf1;hb=4b4f249d5221a6456e0a3b725ff6463f14c24699;hp=a841cd0bb7311526ce0177d5c40f199cdbc47e03;hpb=bd6cb62456225064229a871735ad99ed5c44a671;p=nageru

diff --git a/httpd.cpp b/httpd.cpp
index a841cd0..29923f9 100644
--- a/httpd.cpp
+++ b/httpd.cpp
@@ -24,18 +24,9 @@ struct MHD_Response;
 
 using namespace std;
 
-HTTPD::HTTPD(const char *output_filename, int width, int height)
+HTTPD::HTTPD(int width, int height)
 	: width(width), height(height)
 {
-	AVFormatContext *avctx = avformat_alloc_context();
-	avctx->oformat = av_guess_format(NULL, output_filename, NULL);
-	strcpy(avctx->filename, output_filename);
-	if (avio_open2(&avctx->pb, output_filename, AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL) < 0) {
-		fprintf(stderr, "%s: avio_open2() failed\n", output_filename);
-		exit(1);
-	}
-
-	file_mux.reset(new Mux(avctx, width, height));
 }
 
 void HTTPD::start(int port)
@@ -51,7 +42,31 @@ void HTTPD::add_packet(const AVPacket &pkt, int64_t pts, int64_t dts)
 	for (Stream *stream : streams) {
 		stream->add_packet(pkt, pts, dts);
 	}
-	file_mux->add_packet(pkt, pts, dts);
+	if (file_mux) {
+		file_mux->add_packet(pkt, pts, dts);
+	}
+}
+
+void HTTPD::open_output_file(const string &filename)
+{
+	AVFormatContext *avctx = avformat_alloc_context();
+	avctx->oformat = av_guess_format(NULL, filename.c_str(), NULL);
+	strcpy(avctx->filename, filename.c_str());
+
+	string url = "file:" + filename;
+	int ret = avio_open2(&avctx->pb, url.c_str(), AVIO_FLAG_WRITE, &avctx->interrupt_callback, NULL);
+	if (ret < 0) {
+		char tmp[AV_ERROR_MAX_STRING_SIZE];
+		fprintf(stderr, "%s: avio_open2() failed: %s\n", filename.c_str(), av_make_error_string(tmp, sizeof(tmp), ret));
+		exit(1);
+	}
+
+	file_mux.reset(new Mux(avctx, width, height));
+}
+
+void HTTPD::close_output_file()
+{
+	file_mux.reset();
 }
 
 int HTTPD::answer_to_connection_thunk(void *cls, MHD_Connection *connection,
@@ -73,8 +88,10 @@ int HTTPD::answer_to_connection(MHD_Connection *connection,
 	assert(oformat != nullptr);
 	HTTPD::Stream *stream = new HTTPD::Stream(oformat, width, height);
 	streams.push_back(stream);
+
+	// Does not strictly have to be equal to MUX_BUFFER_SIZE.
 	MHD_Response *response = MHD_create_response_from_callback(
-		(size_t)-1, 1048576, &HTTPD::Stream::reader_callback_thunk, stream, &HTTPD::free_stream);
+		(size_t)-1, MUX_BUFFER_SIZE, &HTTPD::Stream::reader_callback_thunk, stream, &HTTPD::free_stream);
 	int ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
 	//MHD_destroy_response(response);
 
@@ -127,7 +144,12 @@ HTTPD::Mux::Mux(AVFormatContext *avctx, int width, int height)
 	avstream_audio->codec->channel_layout = AV_CH_LAYOUT_STEREO;
 	avstream_audio->codec->time_base = AVRational{1, TIMEBASE};
 
-	if (avformat_write_header(avctx, NULL) < 0) {
+	AVDictionary *options = NULL;
+	vector<pair<string, string>> opts = MUX_OPTS;
+	for (pair<string, string> opt : opts) {
+		av_dict_set(&options, opt.first.c_str(), opt.second.c_str(), 0);
+	}
+	if (avformat_write_header(avctx, &options) < 0) {
 		fprintf(stderr, "avformat_write_header() failed\n");
 		exit(1);
 	}
@@ -163,8 +185,8 @@ HTTPD::Stream::Stream(AVOutputFormat *oformat, int width, int height)
 {
 	AVFormatContext *avctx = avformat_alloc_context();
 	avctx->oformat = oformat;
-	uint8_t *buf = (uint8_t *)av_malloc(1048576);
-	avctx->pb = avio_alloc_context(buf, 1048576, 1, this, nullptr, &HTTPD::Stream::write_packet_thunk, nullptr);
+	uint8_t *buf = (uint8_t *)av_malloc(MUX_BUFFER_SIZE);
+	avctx->pb = avio_alloc_context(buf, MUX_BUFFER_SIZE, 1, this, nullptr, &HTTPD::Stream::write_packet_thunk, nullptr);
 	avctx->flags = AVFMT_FLAG_CUSTOM_IO;
 
 	mux.reset(new Mux(avctx, width, height));