64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
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* Desktop RTSP MJPEG video streaming test.
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*
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* Mirrors examples/examples-communication/rtsp/video-server-mjpeg, but runs
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* on the desktop (via the Arduino-Emulator's WiFiServer/WiFiClient/WiFiUDP)
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* instead of an ESP32-CAM, so it can be built and exercised without any
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* hardware. Loops a single synthetic JPEG test frame (frame_jpeg.h) through
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* JPEGRtpEncoder's RFC 2435 fragmentation and RTSPMediaCallbackSource.
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*
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* Connect with: ffplay rtsp://127.0.0.1:8554/video
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*/
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#include "AudioTools.h"
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#include "AudioTools/Communication/RTSP/RTSPPlatformWiFi.h"
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#include "AudioTools/Communication/RTSP.h"
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#include "frame_jpeg.h"
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using namespace audio_tools;
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const int port = 8554;
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const int VIDEO_WIDTH = 320;
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const int VIDEO_HEIGHT = 240;
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const float VIDEO_FPS = 5.0f;
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const unsigned long FRAME_DURATION_MS = 1000 / VIDEO_FPS;
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RTSPFormatMJPEG mjpegFormat(VIDEO_WIDTH, VIDEO_HEIGHT, VIDEO_FPS);
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// JPEGRtpEncoder is itself an IMediaSource (RTSPVideoEncoder : AudioEncoder,
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// IMediaSource), so it can go straight into RTSPMediaStreamer - no
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// RTSPMediaCallbackSource/callback wrapper needed.
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JPEGRtpEncoder jpegEncoder;
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RTSPMediaStreamer<RTSPPlatformWiFi> rtspStreamer(jpegEncoder);
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RTSPServer<RTSPPlatformWiFi> rtspServer(rtspStreamer, port);
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void setup() {
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
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jpegEncoder.setFormat(mjpegFormat);
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jpegEncoder.setMaxFragmentSize(1400);
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rtspServer.begin();
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}
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void loop() {
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static bool captureEnabled = false;
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bool clientConnected = rtspServer.clientCount() > 0;
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if (clientConnected != captureEnabled) {
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captureEnabled = clientConnected;
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if (captureEnabled) {
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jpegEncoder.begin();
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} else {
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jpegEncoder.end();
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}
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}
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if (captureEnabled) {
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static unsigned long lastFrame = 0;
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unsigned long now = millis();
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if (now - lastFrame >= FRAME_DURATION_MS) {
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lastFrame = now;
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jpegEncoder.write(frame_jpeg, frame_jpeg_len);
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}
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}
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}
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