diff options
Diffstat (limited to 'youtube_dl/PostProcessor.py')
| -rw-r--r-- | youtube_dl/PostProcessor.py | 48 |
1 files changed, 27 insertions, 21 deletions
diff --git a/youtube_dl/PostProcessor.py b/youtube_dl/PostProcessor.py index 52e686a7f..b4262f9e4 100644 --- a/youtube_dl/PostProcessor.py +++ b/youtube_dl/PostProcessor.py @@ -60,7 +60,6 @@ class AudioConversionError(BaseException): self.message = message class FFmpegExtractAudioPP(PostProcessor): - def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, keepvideo=False): PostProcessor.__init__(self, downloader) if preferredcodec is None: @@ -68,11 +67,22 @@ class FFmpegExtractAudioPP(PostProcessor): self._preferredcodec = preferredcodec self._preferredquality = preferredquality self._keepvideo = keepvideo + self._exes = self.detect_executables() @staticmethod - def get_audio_codec(path): + def detect_executables(): + available = {'avprobe' : False, 'avconv' : False, 'ffmpeg' : False, 'ffprobe' : False} + for path in os.environ["PATH"].split(os.pathsep): + for program in available.keys(): + exe_file = os.path.join(path, program) + if os.path.isfile(exe_file) and os.access(exe_file, os.X_OK): + available[program] = exe_file + return available + + def get_audio_codec(self, path): + if not self._exes['ffprobe'] and not self._exes['avprobe']: return None try: - cmd = ['ffprobe', '-show_streams', '--', encodeFilename(path)] + cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', '--', encodeFilename(path)] handle = subprocess.Popen(cmd, stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE) output = handle.communicate()[0] if handle.wait() != 0: @@ -87,22 +97,18 @@ class FFmpegExtractAudioPP(PostProcessor): return audio_codec return None - @staticmethod - def run_ffmpeg(path, out_path, codec, more_opts): + def run_ffmpeg(self, path, out_path, codec, more_opts): + if not self._exes['ffmpeg'] and not self._exes['avconv']: + raise AudioConversionError('ffmpeg or avconv not found. Please install one.') if codec is None: acodec_opts = [] else: acodec_opts = ['-acodec', codec] - cmd = ['ffmpeg', '-y', '-i', encodeFilename(path), '-vn'] + acodec_opts + more_opts + ['--', encodeFilename(out_path)] - try: - p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) - stdout,stderr = p.communicate() - except (IOError, OSError): - e = sys.exc_info()[1] - if isinstance(e, OSError) and e.errno == 2: - raise AudioConversionError('ffmpeg not found. Please install ffmpeg.') - else: - raise e + cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y', '-i', encodeFilename(path), '-vn'] + + acodec_opts + more_opts + + ['--', encodeFilename(out_path)]) + p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdout,stderr = p.communicate() if p.returncode != 0: msg = stderr.strip().split('\n')[-1] raise AudioConversionError(msg) @@ -121,7 +127,7 @@ class FFmpegExtractAudioPP(PostProcessor): # Lossless, but in another container acodec = 'copy' extension = self._preferredcodec - more_opts = ['-absf', 'aac_adtstoasc'] + more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] elif filecodec in ['aac', 'mp3', 'vorbis']: # Lossless if possible acodec = 'copy' @@ -136,18 +142,18 @@ class FFmpegExtractAudioPP(PostProcessor): extension = 'mp3' more_opts = [] if self._preferredquality is not None: - more_opts += ['-ab', self._preferredquality] + more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality] else: # We convert the audio (lossy) acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec] extension = self._preferredcodec more_opts = [] if self._preferredquality is not None: - more_opts += ['-ab', self._preferredquality] + more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality] if self._preferredcodec == 'aac': more_opts += ['-f', 'adts'] if self._preferredcodec == 'm4a': - more_opts += ['-absf', 'aac_adtstoasc'] + more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] if self._preferredcodec == 'vorbis': extension = 'ogg' if self._preferredcodec == 'wav': @@ -156,7 +162,7 @@ class FFmpegExtractAudioPP(PostProcessor): prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups new_path = prefix + sep + extension - self._downloader.to_screen(u'[ffmpeg] Destination: ' + new_path) + self._downloader.to_screen(u'[' + self._exes['avconv'] and 'avconv' or 'ffmpeg' + '] Destination: ' + new_path) try: self.run_ffmpeg(path, new_path, acodec, more_opts) except: @@ -164,7 +170,7 @@ class FFmpegExtractAudioPP(PostProcessor): if isinstance(e, AudioConversionError): self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message) else: - self._downloader.to_stderr(u'ERROR: error running ffmpeg') + self._downloader.to_stderr(u'ERROR: error running ' + self._exes['avconv'] and 'avconv' or 'ffmpeg') return None # Try to update the date time for extracted audio file. |