Scott.Idem/OSIT-AE-API-FastAPI
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Finalizing the new audio to video file converter

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Scott Idem
2023-11-10 15:54:04 -05:00
parent be6fc9ffb5
commit 1cfd2421bd
1 changed files with 86 additions and 22 deletions
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108
app/routers/hosted_file.py
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@@ -1257,8 +1257,11 @@ def run_ffmpeg(cmd):
@router.post('/create_video') @router.post('/create_video')
async def create_video( async def create_video(
file: UploadFile = File(...), file: UploadFile = File(...),
presentation_name: str = Form(...), title_image: UploadFile = File(None),
speaker_name: str = Form(...) title_part_1: str = Form(...),
title_part_2: str = Form(...),
subtitle_part_1: str = Form(...),
subtitle_part_2: str = Form(...)
): ):
log.setLevel(logging.DEBUG) log.setLevel(logging.DEBUG)
log.debug(locals()) log.debug(locals())
@@ -1288,25 +1291,86 @@ async def create_video(
audio_file.write(await file.read()) audio_file.write(await file.read())
audio_file_path = audio_file.name audio_file_path = audio_file.name
# Generate a static image using the presentation name and speaker name # Save the uploaded title image file to a temporary directory
with tempfile.NamedTemporaryFile(delete=False, suffix='.jpg') as image_file: if title_image:
image_name = image_file.name with tempfile.NamedTemporaryFile(delete=False, suffix='.png') as title_image_opened:
log.debug(image_name) title_image_opened.write(await title_image.read())
title_image_path = title_image_opened.name
else:
with tempfile.NamedTemporaryFile(delete=False, suffix='.png') as title_image_opened:
title_image_path = title_image_opened.name
with Image(width=1280, height=720, background='lightblue') as img:
img.save(filename=title_image_path)
with Image(filename=title_image_path) as img:
with Drawing() as ctx:
ctx.font_family = 'DejaVu Sans' # DejaVu Sans, DejaVu Sans Mono, DejaVu Serif
ctx.font_size = 72
ctx.fill_color = 'darkblue'
ctx.stroke_color = 'darkblue'
ctx.gravity = 'north'
ctx.text_decoration = 'underline'
with Image(width=1280, height=720, background='transparent') as img: ctx.text(0, 150, f'{title_part_1}')
with Drawing() as ctx: ctx.text(0, 222, f'{title_part_2}')
ctx.font_family = 'DejaVu Sans' # DejaVu Sans, DejaVu Sans Mono, DejaVu Serif
# ctx.font = 'Times New Roman' # DejaVu-Sans, DejaVu-Sans-Bold, DejaVu-Sans-Mono, DejaVu-Sans-Mono-Bold, DejaVu-Serif ctx.gravity = 'center'
ctx.font_size = 64 ctx.font_size = 62
ctx.text_alignment = 'center' ctx.text_decoration = 'no'
ctx.text_decoration = 'underline' ctx.text(0, 0, f'{subtitle_part_1}')
ctx.text_kerning = -1 ctx.text(0, 62, f'{subtitle_part_2}')
ctx.fill_color = 'darkblue'
ctx.stroke_color = 'gray' # ctx.text(30, 25, 'TOP')
img.annotate(f'{presentation_name}\n{speaker_name}', ctx, left=50, baseline=0, angle=0) # ctx.text(30, 200, 'BOTTOM')
# gravity='center' # ctx.push()
# , font_size=72, fill='green'
img.save(filename=image_name) ctx(img)
img.save(filename=title_image_path)
# # Open saved title image and add the title and subtitle text
# with tempfile.NamedTemporaryFile() as image_file:
# image_name = image_file.name
# log.debug(image_name)
# with Image(filename=image_name) as img:
# with Drawing() as ctx:
# ctx.font_family = 'DejaVu Sans' # DejaVu Sans, DejaVu Sans Mono, DejaVu Serif
# ctx.font_size = 72
# ctx.fill_color = 'darkblue'
# ctx.stroke_color = 'darkblue'
# ctx.gravity = 'north'
# ctx.text_decoration = 'underline'
# ctx.text(0, 150, f'{title_part_1}')
# ctx.text(0, 222, f'{title_part_2}')
# ctx.gravity = 'center'
# ctx.font_size = 64
# ctx.text_decoration = 'no'
# ctx.text(0, 0, f'{subtitle_part_1}')
# ctx.text(0, 64, f'{subtitle_part_2}')
# # ctx.text(30, 25, 'TOP')
# # ctx.text(30, 200, 'BOTTOM')
# # ctx.push()
# ctx(img)
# # with Image(width=1280, height=720, background='transparent') as img:
# with Image(filename=image_name) as img:
# with Drawing() as ctx:
# ctx.font_family = 'DejaVu Sans' # DejaVu Sans, DejaVu Sans Mono, DejaVu Serif
# # ctx.font = 'Times New Roman' # DejaVu-Sans, DejaVu-Sans-Bold, DejaVu-Sans-Mono, DejaVu-Sans-Mono-Bold, DejaVu-Serif
# ctx.font_size = 64
# ctx.text_alignment = 'center'
# ctx.text_decoration = 'underline'
# ctx.text_kerning = -1
# ctx.fill_color = 'darkblue'
# ctx.stroke_color = 'gray'
# img.annotate(f'{presentation_name}\n{speaker_name}', ctx, left=50, baseline=0, angle=0)
# # gravity='center'
# # , font_size=72, fill='green'
# img.save(filename=image_name)
@@ -1338,7 +1402,7 @@ async def create_video(
video_name = video_file.name video_name = video_file.name
# NOTE: It seems very important that the -y argument is used with ffmpeg run by subprocess.run(). Otherwise the process will hang. # NOTE: It seems very important that the -y argument is used with ffmpeg run by subprocess.run(). Otherwise the process will hang.
# cmd = f"ffmpeg -nostdin -loglevel error -loop 1 -i {image_name} -i {audio_file_path} -c:a copy -c:v libx264 -shortest {video_name} &" # cmd = f"ffmpeg -nostdin -loglevel error -loop 1 -i {image_name} -i {audio_file_path} -c:a copy -c:v libx264 -shortest {video_name} &"
cmd = f"ffmpeg -hide_banner -loglevel error -nostats -y -loop 1 -i {image_name} -i {audio_file_path} -c:a copy -c:v libx264 -shortest {video_name}" cmd = f"ffmpeg -hide_banner -loglevel error -nostats -y -loop 1 -i {title_image_path} -i {audio_file_path} -c:a copy -c:v libx264 -shortest {video_name}"
# cmd = f"ffmpeg -hide_banner -i {audio_file_path} -c:a aac {video_name}" # cmd = f"ffmpeg -hide_banner -i {audio_file_path} -c:a aac {video_name}"
log.debug(cmd) log.debug(cmd)
@@ -1371,4 +1435,4 @@ async def create_video(
return {'success': False, 'status_message': f'Error running ffmpeg command: {e}'} return {'success': False, 'status_message': f'Error running ffmpeg command: {e}'}
# Return the new mp4 file for download # Return the new mp4 file for download
return FileResponse(video_name, media_type='video/mp4', filename=f'{presentation_name}_{speaker_name}.mp4') return FileResponse(video_name, media_type='video/mp4', filename=f'{title_part_1}_{subtitle_part_1}.mp4')