Initial Commit

Application/StreamRecoder.cc

@@ -0,0 +1,141 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream>
+#include <fstream>
+#include <sstream>
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavformat/avio.h>
+#include <libswscale/swscale.h>
+}
+
+int main(int argc, char** argv) {
+
+	// Open the initial context variables that are needed
+	SwsContext *img_convert_ctx;
+	AVFormatContext* format_ctx = avformat_alloc_context();
+	AVCodecContext* codec_ctx = NULL;
+	int video_stream_index;
+
+	// Register everything
+	av_register_all();
+	avformat_network_init();
+
+	//open RTSP
+	if (avformat_open_input(&format_ctx, "rtsp://134.169.178.187:8554/h264.3gp",
+			NULL, NULL) != 0) {
+		return EXIT_FAILURE;
+	}
+
+	if (avformat_find_stream_info(format_ctx, NULL) < 0) {
+		return EXIT_FAILURE;
+	}
+
+	//search video stream
+	for (int i = 0; i < format_ctx->nb_streams; i++) {
+		if (format_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
+			video_stream_index = i;
+	}
+
+	AVPacket packet;
+	av_init_packet(&packet);
+
+	//open output file
+	AVFormatContext* output_ctx = avformat_alloc_context();
+
+	AVStream* stream = NULL;
+	int cnt = 0;
+
+	//start reading packets from stream and write them to file
+	av_read_play(format_ctx);	//play RTSP
+
+	// Get the codec
+	AVCodec *codec = NULL;
+	codec = avcodec_find_decoder(AV_CODEC_ID_H264);
+	if (!codec) {
+		exit(1);
+	}
+
+	// Add this to allocate the context by codec
+	codec_ctx = avcodec_alloc_context3(codec);
+
+	avcodec_get_context_defaults3(codec_ctx, codec);
+	avcodec_copy_context(codec_ctx, format_ctx->streams[video_stream_index]->codec);
+	std::ofstream output_file;
+
+	if (avcodec_open2(codec_ctx, codec, NULL) < 0)
+		exit(1);
+
+	img_convert_ctx = sws_getContext(codec_ctx->width, codec_ctx->height,
+			codec_ctx->pix_fmt, codec_ctx->width, codec_ctx->height, AV_PIX_FMT_RGB24,
+			SWS_BICUBIC, NULL, NULL, NULL);
+
+	int size = avpicture_get_size(AV_PIX_FMT_YUV420P, codec_ctx->width,
+			codec_ctx->height);
+	uint8_t* picture_buffer = (uint8_t*) (av_malloc(size));
+	AVFrame* picture = av_frame_alloc();
+	AVFrame* picture_rgb = av_frame_alloc();
+	int size2 = avpicture_get_size(AV_PIX_FMT_RGB24, codec_ctx->width,
+			codec_ctx->height);
+	uint8_t* picture_buffer_2 = (uint8_t*) (av_malloc(size2));
+	avpicture_fill((AVPicture *) picture, picture_buffer, AV_PIX_FMT_YUV420P,
+			codec_ctx->width, codec_ctx->height);
+	avpicture_fill((AVPicture *) picture_rgb, picture_buffer_2, AV_PIX_FMT_RGB24,
+			codec_ctx->width, codec_ctx->height);
+
+	while (av_read_frame(format_ctx, &packet) >= 0 && cnt < 1000) { //read ~ 1000 frames
+
+		std::cout << "1 Frame: " << cnt << std::endl;
+		if (packet.stream_index == video_stream_index) {	//packet is video
+			std::cout << "2 Is Video" << std::endl;
+			if (stream == NULL) {	//create stream in file
+				std::cout << "3 create stream" << std::endl;
+				stream = avformat_new_stream(output_ctx,
+						format_ctx->streams[video_stream_index]->codec->codec);
+				avcodec_copy_context(stream->codec,
+						format_ctx->streams[video_stream_index]->codec);
+				stream->sample_aspect_ratio =
+						format_ctx->streams[video_stream_index]->codec->sample_aspect_ratio;
+			}
+			int check = 0;
+			packet.stream_index = stream->id;
+			std::cout << "4 decoding" << std::endl;
+			int result = avcodec_decode_video2(codec_ctx, picture, &check, &packet);
+			std::cout << "Bytes decoded " << result << " check " << check
+					<< std::endl;
+			if (cnt > 100)	//cnt < 0)
+					{
+				sws_scale(img_convert_ctx, picture->data, picture->linesize, 0,
+						codec_ctx->height, picture_rgb->data, picture_rgb->linesize);
+				std::stringstream file_name;
+				file_name << "test" << cnt << ".ppm";
+				output_file.open(file_name.str().c_str());
+				output_file << "P3 " << codec_ctx->width << " " << codec_ctx->height
+						<< " 255\n";
+				for (int y = 0; y < codec_ctx->height; y++) {
+					for (int x = 0; x < codec_ctx->width * 3; x++)
+						output_file
+								<< (int) (picture_rgb->data[0]
+										+ y * picture_rgb->linesize[0])[x] << " ";
+				}
+				output_file.close();
+			}
+			cnt++;
+		}
+		av_free_packet(&packet);
+		av_init_packet(&packet);
+	}
+	av_free(picture);
+	av_free(picture_rgb);
+	av_free(picture_buffer);
+	av_free(picture_buffer_2);
+
+	av_read_pause(format_ctx);
+	avio_close(output_ctx->pb);
+	avformat_free_context(output_ctx);
+
+	return (EXIT_SUCCESS);
+}
+

Application/Test.cc

@@ -0,0 +1,46 @@
+#include "API/WebAPI.h"
+#include <ctpl_stl.h>
+#include <Logging.h>
+#include <HttpServer.h>
+#include <iostream>
+#include <sstream>
+
+
+int main(int argc, char** argv)
+{
+	try
+	{
+		Logging::OpenLog();
+		Logging::SetLogMask(Logging::Severity::Debug);
+
+		int port(8000);
+		ctpl::thread_pool threadPool(6);
+		std::string ffmpeg = "ffmpeg";
+
+		Http::HttpServer::CallbackMethod callback = std::bind(&StreamRecoder::API::WebAPI::ProcessQuery, &threadPool, ffmpeg, std::placeholders::_1, std::placeholders::_2);
+
+		Http::HttpServer server(port, callback);
+		Logging::Log(Logging::Severity::Info, "Startup Complete");
+		server.Wait();
+
+		Logging::Log(Logging::Severity::Info, "Stopping StreamRecoder...");
+
+		Logging::CloseLog();
+	}
+	catch (const std::exception& e)
+	{
+		std::cerr << "Exception caught" << std::endl;
+
+		std::stringstream ss;
+		ss << "Type : " << typeid(e).name() << std::endl;
+		ss << "ERROR: " << e.what() << std::endl;
+
+		Logging::Log(Logging::Severity::Error, ss.str());
+
+		Logging::CloseLog();
+
+		return -1;
+	}
+
+	return 0;
+}