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import os
import mimetypes
import traceback
from datetime import datetime
from wsgiref.util import FileWrapper
from rest_framework import status
from rest_framework.decorators import api_view, parser_classes
from rest_framework.parsers import MultiPartParser
from django.http import StreamingHttpResponse
from django.http import JsonResponse
from detection.main import exercise_detection
from detection.utils import get_static_file_url
@api_view(["GET"])
def stream_video(request):
"""
Query: video_name
Stream video get from query
"""
video_name = request.GET.get("video_name")
if not video_name:
return JsonResponse(
status=status.HTTP_400_BAD_REQUEST,
data={
"message": "File name not given",
},
)
static_url = get_static_file_url(f"media/{video_name}")
if not static_url:
return JsonResponse(
status=status.HTTP_404_NOT_FOUND,
data={
"message": "File not found",
},
)
# Streamed video as chunked
video_size = os.path.getsize(static_url)
content_type, _ = mimetypes.guess_type(static_url)
content_type = content_type or "application/octet-stream"
chunk_size = video_size // 10
response = StreamingHttpResponse(
FileWrapper(open(static_url, "rb"), chunk_size), content_type=content_type
)
response["Content-Length"] = video_size
response["Accept-Ranges"] = "bytes"
return response
@api_view(["POST"])
@parser_classes([MultiPartParser])
def upload_video(request):
exercise_type = request.GET.get("type")
if not exercise_type:
return JsonResponse(
status=status.HTTP_400_BAD_REQUEST,
data={
"message": "Exercise type has not given",
},
)
try:
if request.method == "POST":
video = request.FILES["file"]
# Convert any video to .mp4
now = datetime.now()
now = int(now.strftime("%Y%m%d%H%M%S"))
name_to_save = f"video_{now}.mp4"
# Process and Saved Video
results, *other_data = exercise_detection(
video_file_path=video.temporary_file_path(),
video_name_to_save=name_to_save,
exercise_type=exercise_type,
rescale_percent=40,
)
# Convert images' path to URL
host = request.build_absolute_uri("/")
for index, error in enumerate(results):
if error["frame"]:
results[index]["frame"] = host + f"static/images/{error['frame']}"
response_data = {
"type": exercise_type,
"processed": True,
"file_name": name_to_save,
"details": results,
}
# Handle others data
if exercise_type in ["squat", "lunge", "bicep_curl"]:
response_data["counter"] = other_data[0]
return JsonResponse(
status=status.HTTP_200_OK,
data=response_data,
)
except Exception as e:
print(f"Error Video Processing: {e}")
# traceback.print_exc()
return JsonResponse(
status=status.HTTP_400_BAD_REQUEST,
data={
"error": f"Error: {e}",
},
)
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