-
-
Save sazio/e4afeb14469491c9148bc349c701675f to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# Extract some meta-data | |
if EXTRACT_META == True: | |
results = [] | |
subfolder = VIDEOS_FOLDER_TRAIN | |
filepaths = glob.glob(subfolder + "/*.mp4") | |
for filepath in tqdm(filepaths): | |
js = ffprobe(filepath) | |
if js: | |
results.append( | |
(js.get("format", {}).get("filename")[len(subfolder) + 1:], | |
js.get("format", {}).get("format_long_name"), | |
# Video | |
js.get("streams", [{}, {}])[0].get("codec_name"), | |
js.get("streams", [{}, {}])[0].get("height"), | |
js.get("streams", [{}, {}])[0].get("width"), | |
js.get("streams", [{}, {}])[0].get("nb_frames"), | |
js.get("streams", [{}, {}])[0].get("bit_rate"), | |
js.get("streams", [{}, {}])[0].get("duration"), | |
js.get("streams", [{}, {}])[0].get("start_time"), | |
js.get("streams", [{}, {}])[0].get("avg_frame_rate"), | |
# Audio | |
js.get("streams", [{}, {}])[1].get("codec_name"), | |
js.get("streams", [{}, {}])[1].get("channels"), | |
js.get("streams", [{}, {}])[1].get("sample_rate"), | |
js.get("streams", [{}, {}])[1].get("nb_frames"), | |
js.get("streams", [{}, {}])[1].get("bit_rate"), | |
js.get("streams", [{}, {}])[1].get("duration"), | |
js.get("streams", [{}, {}])[1].get("start_time")), | |
) | |
meta_pd = pd.DataFrame(results, columns=["filename", "format", "video_codec_name", "video_height", "video_width", | |
"video_nb_frames", "video_bit_rate", "video_duration", "video_start_time","video_fps", | |
"audio_codec_name", "audio_channels", "audio_sample_rate", "audio_nb_frames", | |
"audio_bit_rate", "audio_duration", "audio_start_time"]) | |
meta_pd["video_fps"] = meta_pd["video_fps"].apply(lambda x: float(x.split("/")[0])/float(x.split("/")[1]) if len(x.split("/")) == 2 else None) | |
meta_pd["video_duration"] = meta_pd["video_duration"].astype(np.float32) | |
meta_pd["video_bit_rate"] = meta_pd["video_bit_rate"].astype(np.float32) | |
meta_pd["video_start_time"] = meta_pd["video_start_time"].astype(np.float32) | |
meta_pd["video_nb_frames"] = meta_pd["video_nb_frames"].astype(np.float32) | |
meta_pd["video_bit_rate"] = meta_pd["video_bit_rate"].astype(np.float32) | |
meta_pd["audio_sample_rate"] = meta_pd["audio_sample_rate"].astype(np.float32) | |
meta_pd["audio_nb_frames"] = meta_pd["audio_nb_frames"].astype(np.float32) | |
meta_pd["audio_bit_rate"] = meta_pd["audio_bit_rate"].astype(np.float32) | |
meta_pd["audio_duration"] = meta_pd["audio_duration"].astype(np.float32) | |
meta_pd["audio_start_time"] = meta_pd["audio_start_time"].astype(np.float32) | |
meta_pd.to_pickle(HOME + "videos_meta.pkl") | |
else: | |
meta_pd = pd.read_pickle(HOME + "videos_meta.pkl") | |
meta_pd.head() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment