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20260429_232813-fix: video frame display pipeline — default project seed, presigned URLs, Canvas/FrameTimeline real frames, upload-parse flow

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admin
2026-04-29 23:42:18 +08:00
parent 51f1a60216
commit 35d6e1503c
16 changed files with 454 additions and 56 deletions
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14
backend/services/frame_parser.py
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@@ -39,12 +39,12 @@ def parse_video(
# Try FFmpeg first
if shutil.which("ffmpeg"):
try:
pattern = os.path.join(output_dir, "frame_%06d.png")
pattern = os.path.join(output_dir, "frame_%06d.jpg")
cmd = [
"ffmpeg",
"-i", video_path,
"-vf", f"fps={fps},scale='min(1920,iw)':-1",
"-pix_fmt", "rgb24",
"-vf", f"fps={fps},scale=640:-1",
"-q:v", "5",
"-y",
pattern,
]
@@ -52,7 +52,7 @@ def parse_video(
result = subprocess.run(cmd, capture_output=True, text=True, check=False)
if result.returncode == 0:
frame_paths = sorted(
[os.path.join(output_dir, f) for f in os.listdir(output_dir) if f.endswith(".png")]
[os.path.join(output_dir, f) for f in os.listdir(output_dir) if f.endswith(".jpg")]
)
if max_frames:
frame_paths = frame_paths[:max_frames]
@@ -79,8 +79,8 @@ def parse_video(
if not ret:
break
if count % interval == 0:
path = os.path.join(output_dir, f"frame_{saved:06d}.png")
cv2.imwrite(path, frame)
path = os.path.join(output_dir, f"frame_{saved:06d}.jpg")
cv2.imwrite(path, frame, [cv2.IMWRITE_JPEG_QUALITY, 80])
frame_paths.append(path)
saved += 1
if max_frames and saved >= max_frames:
@@ -175,7 +175,7 @@ def upload_frames_to_minio(
upload_file(
object_name,
data,
content_type="image/png",
content_type="image/jpeg",
length=len(data),
)
object_names.append(object_name)