m4b

audiblez.py

@@ -17,6 +17,7 @@ from string import Formatter
 from bs4 import BeautifulSoup
 from kokoro_onnx import Kokoro
 from ebooklib import epub
+from pydub import AudioSegment
 
 kokoro = Kokoro('kokoro-v0_19.onnx', 'voices.json')
 
@@ -41,8 +42,12 @@ def main(file_path, lang, voice):
     print('Total words:', len(' '.join(texts).split(' ')))
 
     i = 1
+    chapter_mp3_files = []
     for text in texts:
+        if i > 8:
+            continue
         chapter_filename = filename.replace('.epub', f'_chapter_{i}.wav')
+        chapter_mp3_files.append(chapter_filename)
         if Path(chapter_filename).exists() or Path(chapter_filename.replace('.wav', '.mp3')).exists():
             print(f'File for chapter {i} already exists. Skipping')
             i += 1
@@ -61,12 +66,15 @@ def main(file_path, lang, voice):
         remaining_chars = sum([len(t) for t in texts[i - 1:]])
         remaining_time = remaining_chars / chars_per_sec
         print(f'Estimated time remaining: {strfdelta(remaining_time)}')
+        progress = int((total_chars - remaining_chars) / total_chars * 100)
+        print(f'Progress: {progress}%')
         print()
-        if has_ffmpeg:
-            convert_to_mp3(chapter_filename)
+        # if has_ffmpeg:
+        #     convert_to_mp3(chapter_filename)
         i += 1
+
     if has_ffmpeg:
-        create_m4b(filename)
+        create_m4b(chapter_mp3_files, filename)
 
 
 def extract_texts(chapters):
@@ -107,19 +115,41 @@ def strfdelta(tdelta, fmt='{D:02}d {H:02}h {M:02}m {S:02}s'):
     return f.format(fmt, **values)
 
 
-def convert_to_mp3(wav_file):
-    mp3_file = wav_file.replace('.wav', '.mp3')
-    print(f'In parallel, converting {wav_file} to {mp3_file}...')
-    subprocess.Popen(['ffmpeg', '-i', wav_file, mp3_file, '&& rm', wav_file, '&& echo "mp3 convertion done."'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+# def convert_to_mp3(wav_file):
+#     mp3_file = wav_file.replace('.wav', '.mp3')
+#     print(f'In parallel, converting {wav_file} to {mp3_file}...')
+#     subprocess.Popen(['ffmpeg', '-i', wav_file, mp3_file, '&& rm', wav_file, '&& echo "mp3 convertion done."'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
 
-def create_m4b(filename):
-    if shutil.which('ffmpeg') is None:
-        return
+# def create_m4b(chapter_files, filename):
+#     if shutil.which('ffmpeg') is None:
+#         return
+#     print('Creating M4B file...')
+#     filename_m4b = filename.replace('.epub', '.m4b')
+#     concat_str = '|'.join(chapter_files)
+#     cmd = ['ffmpeg', '-i', f'concat:{concat_str}', '-c:a', 'aac', '-b:a', '64k', '-f', 'mp4', f'{filename_m4b}']
+#     print(cmd)
+#     proc = subprocess.run(cmd)
+#     if proc.returncode == 0:
+#         print(f'{filename_m4b} created. Enjoy your audiobook.')
+
+
+def create_m4b(chaptfer_files, filename):
+    tmp_filename = filename.replace('.epub', '.tmp.m4a')
+    if not Path(tmp_filename).exists():
+        combined_audio = AudioSegment.empty()
+        for wav_file in chaptfer_files:
+            audio = AudioSegment.from_wav(wav_file)
+            combined_audio += audio
+        print('Creating M4A file...')
+        combined_audio.export(tmp_filename, format="mp4", codec="aac", bitrate="64k")
+    final_filename = filename.replace('.epub', '.m4b')
     print('Creating M4B file...')
-    filename_m4b = filename.replace('.epub', '.m4b')
-    subprocess.run(['ffmpeg', '-i', 'concat:chapter_*.mp3', '-acodec', 'copy', f'{filename_m4b}'])
-    print(f'{filename_m4b} created. Enjoy your audbiook.')
+    proc = subprocess.run(['ffmpeg', '-i', f'{tmp_filename}', '-c', 'copy', '-f', 'mp4', f'{final_filename}'])
+    Path(tmp_filename).unlink()
+    if proc.returncode == 0:
+        print(f'{final_filename} created. Enjoy your audiobook.')
+        print('Feel free to delete the intermediary .wav chapter files, the .m4b is all you need.')
 
 
 if __name__ == '__main__':
@@ -132,7 +162,6 @@ if __name__ == '__main__':
     parser.add_argument('epub_file_path', help='Path to the epub file')
     parser.add_argument('-l', '--lang', default='en-gb', help='Language code: en-gb, en-us, fr-fr, ja, ko, cmn')
     parser.add_argument('-v', '--voice', default=default_voice, help=f'Choose narrating voice: {voices_str}')
-    parser.add_argument('-w', '--wav', help="Output to .wav files (instead of mp3, which the default)", action='store_true')
     if len(sys.argv) == 1:
         parser.print_help(sys.stderr)
         sys.exit(1)

poetry.lock

@@ -1249,6 +1249,18 @@ files = [
     {file = "pycparser-2.22.tar.gz", hash = "sha256:491c8be9c040f5390f5bf44a5b07752bd07f56edf992381b05c701439eec10f6"},
 ]
 
+[[package]]
+name = "pydub"
+version = "0.25.1"
+description = "Manipulate audio with an simple and easy high level interface"
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "pydub-0.25.1-py2.py3-none-any.whl", hash = "sha256:65617e33033874b59d87db603aa1ed450633288aefead953b30bded59cb599a6"},
+    {file = "pydub-0.25.1.tar.gz", hash = "sha256:980a33ce9949cab2a569606b65674d748ecbca4f0796887fd6f46173a7b0d30f"},
+]
+
 [[package]]
 name = "pylatexenc"
 version = "2.10"
@@ -1906,4 +1918,4 @@ zstd = ["zstandard (>=0.18.0)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.11,<3.13"
-content-hash = "73ab66a24f6b11201dee9f0ab923ef5b06568f9d850ff05cf17508e6c829d3d4"
+content-hash = "dcb42f7e6478f1428516c4687c5fca4a4b8eb2f16bd751c056fb16f3b03bdd40"

pyproject.toml

@@ -73,7 +73,8 @@ dependencies = [
     "threadpoolctl (==3.5.0)",
     "typing-extensions (==4.12.2)",
     "uritemplate (==4.1.1)",
-    "urllib3 (==2.3.0)"
+    "urllib3 (==2.3.0)",
+    "pydub (>=0.25.1,<0.26.0)"
 ]