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import os
import argparse
import re
import tempfile
FRAME_RATE = 30
def natural_sort_key(s):
"""Key function for natural sorting (handles numbers in strings correctly)."""
return [int(text) if text.isdigit() else text.lower()
for text in re.split(r'(\d+)', s)]
def add_audio_to_face_renders(input_path, wav_path, output_path):
is_meta_render_dir = all(os.path.isdir(os.path.join(input_path, f)) for f in os.listdir(input_path))
if is_meta_render_dir:
input_dirs = [os.path.join(input_path, f) for f in sorted(os.listdir(input_path))]
else:
input_dirs = [input_path]
for dir_path in input_dirs:
audio_file_path = os.path.join(wav_path, os.path.basename(dir_path) + '.wav')
output_file_path = os.path.join(output_path, os.path.basename(dir_path) + '.mp4')
# Find and sort PNG files
png_files = [f for f in os.listdir(dir_path) if f.lower().endswith('.png')]
if not png_files:
print(f"No PNG files found in {dir_path}. Skipping.")
continue
png_files.sort(key=natural_sort_key)
# Create temporary file list for ffmpeg concat demuxer
list_file_content = ""
for png_file in png_files:
abs_path = os.path.abspath(os.path.join(dir_path, png_file)).replace('\\', '/')
list_file_content += f"file '{abs_path}'\n"
list_file_content += f"duration {1/FRAME_RATE}\n"
with tempfile.NamedTemporaryFile(mode='w', suffix='.txt', delete=False, encoding='utf-8') as tf:
tf.write(list_file_content)
temp_list_file = tf.name
temp_list_file_escaped = temp_list_file.replace('\\', '/')
print(f"Processing: {dir_path}")
os.system(f'ffmpeg -f concat -safe 0 -i "{temp_list_file_escaped}" '
f'-i "{audio_file_path}" '
f'-c:v libx264 -pix_fmt yuv420p -r {FRAME_RATE} '
f'-c:a aac -shortest '
f'-y "{output_file_path}"')
os.remove(temp_list_file)
def find_audio_files(wav_path, date, scenario):
audio_files = []
for file in os.listdir(os.path.join(wav_path)):
if not file.endswith('.wav'):
continue
parts = file.split('_')
if parts[0] == date and parts[2].split('.')[0] == scenario:
audio_files.append(os.path.join(wav_path, file))
assert len(audio_files) == 2
return audio_files
def add_audio_to_body_renders(input_path, wav_path, output_path):
input_files = []
if os.path.isdir(input_path):
input_files = [os.path.join(input_path, f) for f in sorted(os.listdir(input_path)) if f.endswith('.mkv')]
else:
input_files = [input_path]
for file_path in input_files:
filename = os.path.basename(file_path)
date, scenario = filename.split('.')[0].split('_')
audio_file_paths = find_audio_files(wav_path, date, scenario)
output_file_path = os.path.join(output_path, filename.replace('.mkv', '.mp4'))
print('Processing:', file_path)
os.system(f"ffmpeg -i {file_path} \
-i {audio_file_paths[0]} \
-i {audio_file_paths[1]} \
-filter_complex \"[1:a][2:a]amix=inputs=2:duration=longest[aout]\" \
-map 0:v \
-map \"[aout]\" \
-c:v copy \
-c:a aac \
{output_file_path}")
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--input_type', '-it', type=str, default='face', help='Type of input to process: face or body')
parser.add_argument('--input_face', '-if', type=str, default=os.path.join('..', 'face_renders_noaudio'), help='Path to single-instance face render folder or multi-instance folder without audio')
parser.add_argument('--output_face', '-of', type=str, default=os.path.join('..', 'face_renders_withaudio'), help='Folder path to store output face render folder with audio')
parser.add_argument('--input_body', '-ib', type=str, default=os.path.join('..', 'body_renders_noaudio'), help='Path to single-instance body render folder or multi-instance folder without audio')
parser.add_argument('--output_body', '-ob', type=str, default=os.path.join('..', 'body_renders_withaudio'), help='Folder path to store output body render folder with audio')
parser.add_argument('--wav_path', '-w', type=str, default=os.path.join('..', 'wav'), help='Path to folder containing wav files')
args = parser.parse_args()
if args.input_type == 'face':
os.makedirs(args.output_face, exist_ok=True)
add_audio_to_face_renders(args.input_face, args.wav_path, args.output_face)
elif args.input_type == 'body':
os.makedirs(args.output_body, exist_ok=True)
add_audio_to_body_renders(args.input_body, args.wav_path, args.output_body)
else:
raise ValueError("Invalid input type. Choose 'face' or 'body'.") |