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OlafenwaMoses / ImageAI

A python library built to empower developers to build applications and systems with self-contained Computer Vision capabilities
https://www.genxr.co/#products
MIT License
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Output file #0 does not contain any stream: How to play .avi file? #198

Closed chandnisharma25 closed 5 years ago

chandnisharma25 commented 5 years ago

Hi,

I have been trying to use your video object detection code as follows:

from imageai.Detection import VideoObjectDetection import os import cv2

execution_path = os.getcwd()

camera = cv2.VideoCapture(0)

detector = VideoObjectDetection() detector.setModelTypeAsYOLOv3() detector.setModelPath(os.path.join(execution_path , "yolo.h5")) detector.loadModel()

video_path = detector.detectObjectsFromVideo(camera_input=camera, output_file_path=os.path.join(execution_path, "camera_detected_video") , frames_per_second=20, log_progress=True, minimum_percentage_probability=30)

print(video_path)

It worked and the file saved into /home/pi/objectdetection/traffic_detected.avi successfully. However, I have been trying to use ffmpeg to convert from avi to mp4 and I have had no success. I tried to use this command to convert:

avconv -i traffic_detected.avi -c:v libx264 -c:a copy trafficdetection.mp4

and got this error:

[avi @ 0x24af5c0] Could not find codec parameters for stream 0 (Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown)): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, avi, from 'traffic_detected.avi': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown), 20 fps, 20 tbr, 20 tbn, 20 tbc Output #0, mp4, to 'trafficdetection.mp4': Output file #0 does not contain any stream

i tried this code to change analyzeduration and probesize " ffmpeg -analyzeduration 2147483647 -probesize 2147483647 -i /home/pi/objectdetection/traffic_detected.avi " Tried again and got this:

[avi @ 0x21e85c0] Could not find codec parameters for stream 0 (Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown)): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, avi, from '/home/pi/objectdetection/traffic_detected.avi': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown), 20 fps, 20 tbr, 20 tbn, 20 tbc At least one output file must be specified

Can you help me ?

Thank you,

Chandni.

OlafenwaMoses commented 5 years ago

Kindly refer to the link below on resolving this.

https://superuser.com/questions/717260/ffmpeg-could-not-find-codec-parameters-for-stream-0-video-h264-unspecified-s