def extract_video(input_file,
output_dir,
output_ext=None,
fps=None,
start_frame=None,
end_frame=None):
input_file_path = Path(input_file)
output_path = Path(output_dir)
if not output_path.exists():
output_path.mkdir(exist_ok=True)
if input_file_path.suffix == '.*':
input_file_path = pathex.get_first_file_by_stem(
input_file_path.parent, input_file_path.stem)
else:
if not input_file_path.exists():
input_file_path = None
if input_file_path is None:
io.log_err("input_file not found.")
return
if fps is None:
fps = io.input_int(
"Enter FPS",
0,
help_message=
"How many frames of every second of the video will be extracted. 0 - full fps"
)
if output_ext is None:
output_ext = io.input_str(
"Output image format",
"png", ["png", "jpg"],
help_message=
"png is lossless, but extraction is x10 slower for HDD, requires x10 more disk space than jpg."
)
for filename in pathex.get_image_paths(output_path, ['.' + output_ext]):
Path(filename).unlink()
job = ffmpeg.input(str(input_file_path))
if start_frame is not None and end_frame is not None:
job = job.trim(start_frame=start_frame, end_frame=end_frame)
kwargs = {'pix_fmt': 'rgb24'}
if fps != 0:
kwargs.update({'r': str(fps)})
if output_ext == 'jpg':
kwargs.update({'q:v': '2'}) #highest quality for jpg
job = job.output(str(output_path / ('%5d.' + output_ext)), **kwargs)
try:
job = job.run()
except:
io.log_err("ffmpeg fail, job commandline:" + str(job.compile()))
def video_from_sequence_(input_dir,
output_file,
reference_file=None,
ext=None,
fps=None,
bitrate=None,
include_audio=False,
lossless=None):
input_path = Path(input_dir)
output_file_path = Path(output_file)
reference_file_path = Path(
reference_file) if reference_file is not None else None
if not input_path.exists():
io.log_err("input_dir not found.")
return
if not output_file_path.parent.exists():
output_file_path.parent.mkdir(parents=True, exist_ok=True)
return
out_ext = output_file_path.suffix
if ext is None:
ext = io.input_str("Input image format (extension)", "png")
if lossless is None:
lossless = io.input_bool("Use lossless codec", False)
video_id = None
audio_id = None
ref_in_a = None
if reference_file_path is not None:
if reference_file_path.suffix == '.*':
reference_file_path = pathex.get_first_file_by_stem(
reference_file_path.parent, reference_file_path.stem)
else:
if not reference_file_path.exists():
reference_file_path = None
if reference_file_path is None:
io.log_err("reference_file not found.")
return
#probing reference file
probe = ffmpeg.probe(str(reference_file_path))
#getting first video and audio streams id with fps
for stream in probe['streams']:
if video_id is None and stream['codec_type'] == 'video':
video_id = stream['index']
fps = stream['r_frame_rate']
if audio_id is None and stream['codec_type'] == 'audio':
audio_id = stream['index']
if audio_id is not None:
#has audio track
ref_in_a = ffmpeg.input(str(reference_file_path))[str(audio_id)]
if fps is None:
#if fps not specified and not overwritten by reference-file
fps = max(1, io.input_int("Enter FPS", 25))
if not lossless and bitrate is None:
bitrate = 1 #max (1, settings.bitrate)#io.input_int ("Bitrate of output file in MB/s", 16)
input_image_paths = pathex.get_image_paths(input_path)
i_in = ffmpeg.input('pipe:', format='image2pipe', r=fps)
output_args = [i_in]
if include_audio and ref_in_a is not None:
output_args += [ref_in_a]
output_args += [str(output_file_path)]
output_kwargs = {}
if lossless:
output_kwargs.update({
"c:v": "libx264",
"crf": "0",
"pix_fmt": "yuv420p",
})
else:
output_kwargs.update({
"c:v": "libx264",
"b:v": "%dM" % (1),
"pix_fmt": "yuv420p",
})
if include_audio and ref_in_a is not None:
output_kwargs.update({
"c:a": "aac",
"b:a": "192k",
"ar": "48000",
"strict": "experimental"
})
job = (ffmpeg.output(*output_args, **output_kwargs).overwrite_output())
try:
job_run = job.run_async(pipe_stdin=True)
for image_path in input_image_paths:
with open(image_path, "rb") as f:
image_bytes = f.read()
job_run.stdin.write(image_bytes)
job_run.stdin.close()
job_run.wait()
except:
io.log_err("ffmpeg fail, job commandline:" + str(job.compile()))
def extract_video(input_file, output_dir, output_ext=None, fps=None):
input_file_path = Path(input_file)
output_path = Path(output_dir)
if not output_path.exists():
output_path.mkdir(exist_ok=True)
InfoNotifier.InfoNotifier.g_progress_info.append(
"\n视频帧输出目录: " + str(Path(output_path).absolute()))
if input_file_path.suffix == '.*':
input_file_path = pathex.get_first_file_by_stem(
input_file_path.parent, input_file_path.stem)
else:
if not input_file_path.exists():
input_file_path = None
InfoNotifier.InfoNotifier.g_progress_info.append("\n视频输入路径:" +
str(input_file_path))
if input_file_path is None:
io.log_err("input_file not found.")
InfoNotifier.InfoNotifier.g_progress_info.append("\n视频输入路径不存在")
return
if fps is None:
fps = io.input_int(
"Enter FPS",
0,
help_message=
"How many frames of every second of the video will be extracted. 0 - full fps"
)
InfoNotifier.InfoNotifier.g_progress_info.append("\n视频帧抽取频率: full fps")
if output_ext is None:
output_ext = io.input_str(
"Output image format",
"png", ["png", "jpg"],
help_message=
"png is lossless, but extraction is x10 slower for HDD, requires x10 more disk space than jpg."
)
InfoNotifier.InfoNotifier.g_progress_info.append("\n视频帧输出格式频率: " +
output_ext)
filenames = pathex.get_image_paths(output_path, ['.' + output_ext])
if len(filenames) != 0:
InfoNotifier.InfoNotifier.g_progress_info.append(
"\n视频帧输出目录不为空, 该目录将被清空!")
for filename in filenames:
Path(filename).unlink()
QApplication.processEvents()
job = ffmpeg.input(str(input_file_path))
kwargs = {'pix_fmt': 'rgb24'}
if fps != 0:
kwargs.update({'r': str(fps)})
if output_ext == 'jpg':
kwargs.update({'q:v': '2'}) #highest quality for jpg
job = job.output(str(output_path / ('%5d.' + output_ext)), **kwargs)
try:
job, err = job.run(cmd=UIParamReflect.GlobalConfig.ffmpeg_cmd_path)
except:
io.log_err("ffmpeg fail, job commandline:" + str(job.compile()))