From 53b8cbc16919883bd131310d0feec67d73a31af1 Mon Sep 17 00:00:00 2001 From: maziggy Date: Wed, 11 Mar 2026 09:29:03 +0100 Subject: [PATCH] Added debug logging for ffmpeg process --- backend/app/api/routes/camera.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/backend/app/api/routes/camera.py b/backend/app/api/routes/camera.py index 12c0f12ef..1748f3a66 100644 --- a/backend/app/api/routes/camera.py +++ b/backend/app/api/routes/camera.py @@ -275,6 +275,14 @@ async def generate_rtsp_mjpeg_stream( if not chunk: logger.warning("Camera stream ended (no more data)") + # Log ffmpeg stderr for diagnostics + if process and process.stderr: + try: + stderr_data = await asyncio.wait_for(process.stderr.read(), timeout=2.0) + if stderr_data: + logger.warning("ffmpeg stderr: %s", stderr_data.decode(errors="replace")) + except (TimeoutError, Exception): + pass break buffer += chunk @@ -317,6 +325,14 @@ async def generate_rtsp_mjpeg_stream( except TimeoutError: logger.warning("Camera stream read timeout") + # Log ffmpeg stderr for diagnostics + if process and process.stderr: + try: + stderr_data = await asyncio.wait_for(process.stderr.read(), timeout=2.0) + if stderr_data: + logger.warning("ffmpeg stderr on timeout: %s", stderr_data.decode(errors="replace")) + except (TimeoutError, Exception): + pass break except asyncio.CancelledError: logger.info("Camera stream cancelled (stream_id=%s)", stream_id)