修改gop后切割，避免没切到keyframe
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2d857752ca
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@ -23,40 +23,26 @@ def get_video_real_duration(filename):
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return handle_ffmpeg_output(ffmpeg_process.stdout)
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def multi_gpu_encode_video_with_subtitles(orig_filename: str, subtitles: list[str], base_ts: float):
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_duration_str = get_video_real_duration(orig_filename)
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duration = duration_str_to_float(_duration_str)
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current_sec = 0
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while current_sec < duration:
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if (current_sec + VIDEO_CLIP_OVERFLOW_SEC * 2) > duration:
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print("[-]Less than 2 overflow sec, skip")
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break
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new_filename = base_ts_to_filename(base_ts + current_sec, True)
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new_fullpath = os.path.join(VIDEO_OUTPUT_DIR, new_filename)
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print("CUR_FN", new_filename, "BIAS_T", current_sec)
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if FFMPEG_USE_NVIDIA_GPU:
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process = get_encode_process_use_nvenc(orig_filename, subtitles, new_fullpath,
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current_sec, VIDEO_CLIP_EACH_SEC + VIDEO_CLIP_OVERFLOW_SEC)
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elif FFMPEG_USE_INTEL_GPU:
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process = get_encode_process_use_intel(orig_filename, subtitles, new_fullpath,
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current_sec, VIDEO_CLIP_EACH_SEC + VIDEO_CLIP_OVERFLOW_SEC)
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else:
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process = get_encode_process_use_cpu(orig_filename, subtitles, new_fullpath,
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current_sec, VIDEO_CLIP_EACH_SEC + VIDEO_CLIP_OVERFLOW_SEC)
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handle_ffmpeg_output(process.stdout)
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process.wait()
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current_sec += VIDEO_CLIP_EACH_SEC
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def encode_video_with_subtitles(orig_filename: str, subtitles: list[str], base_ts: float):
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new_filename = base_ts_to_filename(base_ts, True)
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new_fullpath = os.path.join(VIDEO_OUTPUT_DIR, new_filename)
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if FFMPEG_USE_NVIDIA_GPU:
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process = get_encode_process_use_nvenc(orig_filename, subtitles, new_fullpath)
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elif FFMPEG_USE_INTEL_GPU:
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process = get_encode_process_use_intel(orig_filename, subtitles, new_fullpath)
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else:
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process = get_encode_process_use_cpu(orig_filename, subtitles, new_fullpath)
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handle_ffmpeg_output(process.stdout)
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process.wait()
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return [new_fullpath]
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def get_encode_process_use_nvenc(orig_filename: str, subtitles: list[str], new_filename: str,
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skip: float = 0, duration: float = 0):
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def get_encode_process_use_nvenc(orig_filename: str, subtitles: list[str], new_filename: str):
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print("[+]Use Nvidia NvEnc Acceleration")
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encode_process = subprocess.Popen([
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FFMPEG_EXEC, *_common_ffmpeg_setting(),
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"-ss", str(skip), "-copyts", "-t", str(duration),
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"-i", orig_filename, "-vf",
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",".join("subtitles=%s" % i for i in subtitles) + ",hwupload_cuda",
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"-ss", str(skip),
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"-c:a", "copy", "-c:v", "h264_nvenc",
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"-f", "mp4", "-b:v", VIDEO_BITRATE, "-rc:v", "vbr", "-tune:v", "hq",
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*_common_ffmpeg_params(),
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@ -66,16 +52,13 @@ def get_encode_process_use_nvenc(orig_filename: str, subtitles: list[str], new_f
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return encode_process
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def get_encode_process_use_intel(orig_filename: str, subtitles: list[str], new_filename: str,
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skip: float = 0, duration: float = 0):
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def get_encode_process_use_intel(orig_filename: str, subtitles: list[str], new_filename: str):
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if platform.system().lower() == "windows":
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print("[+]Use Intel QSV Acceleration")
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encode_process = subprocess.Popen([
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FFMPEG_EXEC, *_common_ffmpeg_setting(),
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"-ss", str(skip), "-copyts", "-t", str(duration),
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"-hwaccel", "qsv", "-i", orig_filename, "-vf",
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",".join("subtitles=%s" % i for i in subtitles),
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"-ss", str(skip),
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"-c:a", "copy", "-c:v", "h264_qsv",
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"-f", "mp4", "-b:v", VIDEO_BITRATE, "-rc:v", "vbr", "-tune:v", "hq",
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*_common_ffmpeg_params(),
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@ -86,10 +69,8 @@ def get_encode_process_use_intel(orig_filename: str, subtitles: list[str], new_f
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print("[+]Use Intel VAAPI Acceleration")
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encode_process = subprocess.Popen([
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FFMPEG_EXEC, *_common_ffmpeg_setting(),
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"-ss", str(skip), "-copyts", "-t", str(duration),
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"-hwaccel", "vaapi", "-i", orig_filename, "-vf",
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",".join("subtitles=%s" % i for i in subtitles) + ",hwupload",
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"-ss", str(skip),
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"-c:a", "copy", "-c:v", "h264_vaapi",
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"-f", "mp4", "-b:v", VIDEO_BITRATE, "-rc:v", "vbr", "-tune:v", "hq",
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*_common_ffmpeg_params(),
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@ -99,15 +80,12 @@ def get_encode_process_use_intel(orig_filename: str, subtitles: list[str], new_f
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return encode_process
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def get_encode_process_use_cpu(orig_filename: str, subtitles: list[str], new_filename: str,
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skip: float = 0, duration: float = 0):
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def get_encode_process_use_cpu(orig_filename: str, subtitles: list[str], new_filename: str):
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print("[+]Use CPU Encode")
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encode_process = subprocess.Popen([
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FFMPEG_EXEC, *_common_ffmpeg_setting(),
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"-ss", str(skip), "-copyts", "-t", str(duration),
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"-i", orig_filename, "-vf",
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",".join("subtitles=%s" % i for i in subtitles),
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"-ss", str(skip),
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"-c:a", "copy", "-c:v", "h264",
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"-f", "mp4", "-b:v", VIDEO_BITRATE,
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*_common_ffmpeg_params(),
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@ -176,15 +154,14 @@ def quick_split_video(file):
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def _common_ffmpeg_setting():
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return (
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"-y", "-hide_banner", "-progress", "-", "-loglevel", "error"
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"-y", "-hide_banner", "-progress", "-", "-loglevel", "error",
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)
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def _common_ffmpeg_params():
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return (
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"-f", "mp4", "-b:v", VIDEO_BITRATE, "-c:a", "copy",
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"-sub_charenc", "UTF-8",
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"-preset:v", "fast", "-profile:v", "main",
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"-qmin", "12", "-qmax", "34", "-crf", "26",
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"-preset:v", "fast", "-profile:v", "main", "-avoid_negative_ts", "1",
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"-qmin", "12", "-qmax", "34", "-crf", "26", "-g:v", "60",
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"-fflags", "+genpts", "-shortest", "-movflags", "faststart"
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)
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@ -2,7 +2,7 @@ import os.path
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from exception.danmaku import DanmakuException
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from workflow.danmaku import get_file_start, diff_danmaku_files, danmaku_to_subtitle
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from workflow.video import multi_gpu_encode_video_with_subtitles
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from workflow.video import encode_video_with_subtitles, quick_split_video
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def do_workflow(video_file, danmaku_base_file, *danmaku_files):
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@ -26,9 +26,14 @@ def do_workflow(video_file, danmaku_base_file, *danmaku_files):
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print("弹幕文件", danmaku_file, "异常")
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continue
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print(result)
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multi_gpu_encode_video_with_subtitles(video_file, result, start_ts)
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file_need_split = encode_video_with_subtitles(video_file, result, start_ts)
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for file in file_need_split:
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quick_split_video(file)
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# clean files
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for file in result:
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if os.path.isfile(file):
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os.remove(file)
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for file in file_need_split:
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if os.path.isfile(file):
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os.remove(file)
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