]> Raphaƫl G. Git Repositories - youtubedl/blobdiff - youtube_dl/postprocessor/ffmpeg.py
Merge tag 'upstream/2014.12.01'
[youtubedl] / youtube_dl / postprocessor / ffmpeg.py
index c22f2cdc648b440f52a08cb1ba7947e02a985019..9303b8378b8065d84ed2d064ab76aacb463ef6bf 100644 (file)
@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 import os
 import subprocess
 import sys
@@ -6,10 +8,14 @@ import time
 
 from .common import AudioConversionError, PostProcessor
 
-from ..utils import (
-    check_executable,
+from ..compat import (
     compat_subprocess_get_DEVNULL,
+)
+from ..utils import (
+    encodeArgument,
     encodeFilename,
+    get_exe_version,
+    is_outdated_version,
     PostProcessingError,
     prepend_extension,
     shell_quote,
@@ -17,56 +23,87 @@ from ..utils import (
 )
 
 
-
 class FFmpegPostProcessorError(PostProcessingError):
     pass
 
+
 class FFmpegPostProcessor(PostProcessor):
-    def __init__(self,downloader=None):
+    def __init__(self, downloader=None, deletetempfiles=False):
         PostProcessor.__init__(self, downloader)
-        self._exes = self.detect_executables()
+        self._versions = self.get_versions()
+        self._deletetempfiles = deletetempfiles
+
+    def check_version(self):
+        if not self._executable:
+            raise FFmpegPostProcessorError('ffmpeg or avconv not found. Please install one.')
+
+        REQUIRED_VERSION = '1.0'
+        if is_outdated_version(
+                self._versions[self._executable], REQUIRED_VERSION):
+            warning = 'Your copy of %s is outdated, update %s to version %s or newer if you encounter any errors.' % (
+                self._executable, self._executable, REQUIRED_VERSION)
+            if self._downloader:
+                self._downloader.report_warning(warning)
 
     @staticmethod
-    def detect_executables():
+    def get_versions():
         programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
-        return dict((program, check_executable(program, ['-version'])) for program in programs)
+        return dict((p, get_exe_version(p, args=['-version'])) for p in programs)
 
-    def _get_executable(self):
+    @property
+    def _executable(self):
         if self._downloader.params.get('prefer_ffmpeg', False):
-            return self._exes['ffmpeg'] or self._exes['avconv']
+            prefs = ('ffmpeg', 'avconv')
         else:
-            return self._exes['avconv'] or self._exes['ffmpeg']
+            prefs = ('avconv', 'ffmpeg')
+        for p in prefs:
+            if self._versions[p]:
+                return p
+        return None
+
+    @property
+    def _probe_executable(self):
+        if self._downloader.params.get('prefer_ffmpeg', False):
+            prefs = ('ffprobe', 'avprobe')
+        else:
+            prefs = ('avprobe', 'ffprobe')
+        for p in prefs:
+            if self._versions[p]:
+                return p
+        return None
 
     def _uses_avconv(self):
-        return self._get_executable() == self._exes['avconv']
+        return self._executable == 'avconv'
 
     def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
-        if not self._get_executable():
-            raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.')
+        self.check_version()
 
         files_cmd = []
         for path in input_paths:
             files_cmd.extend(['-i', encodeFilename(path, True)])
-        cmd = ([self._get_executable(), '-y'] + files_cmd
-               + opts +
+        cmd = ([self._executable, '-y'] + files_cmd
+               + [encodeArgument(o) for o in opts] +
                [encodeFilename(self._ffmpeg_filename_argument(out_path), True)])
 
         if self._downloader.params.get('verbose', False):
-            self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd))
+            self._downloader.to_screen('[debug] ffmpeg command line: %s' % shell_quote(cmd))
         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        stdout,stderr = p.communicate()
+        stdout, stderr = p.communicate()
         if p.returncode != 0:
             stderr = stderr.decode('utf-8', 'replace')
             msg = stderr.strip().split('\n')[-1]
             raise FFmpegPostProcessorError(msg)
+        if self._deletetempfiles:
+            for ipath in input_paths:
+                os.remove(ipath)
 
     def run_ffmpeg(self, path, out_path, opts):
         self.run_ffmpeg_multiple_files([path], out_path, opts)
 
     def _ffmpeg_filename_argument(self, fn):
         # ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details
-        if fn.startswith(u'-'):
-            return u'./' + fn
+        if fn.startswith('-'):
+            return './' + fn
         return fn
 
 
@@ -80,11 +117,12 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
         self._nopostoverwrites = nopostoverwrites
 
     def get_audio_codec(self, path):
-        if not self._exes['ffprobe'] and not self._exes['avprobe']:
-            raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.')
+
+        if not self._probe_executable:
+            raise PostProcessingError('ffprobe or avprobe not found. Please install one.')
         try:
             cmd = [
-                self._exes['avprobe'] or self._exes['ffprobe'],
+                self._probe_executable,
                 '-show_streams',
                 encodeFilename(self._ffmpeg_filename_argument(path), True)]
             handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE)
@@ -117,7 +155,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
 
         filecodec = self.get_audio_codec(path)
         if filecodec is None:
-            raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe')
+            raise PostProcessingError('WARNING: unable to obtain file audio codec with ffprobe')
 
         uses_avconv = self._uses_avconv()
         more_opts = []
@@ -166,7 +204,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
                 extension = 'wav'
                 more_opts += ['-f', 'wav']
 
-        prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
+        prefix, sep, ext = path.rpartition('.')  # not os.path.splitext, since the latter does not work on unicode in all setups
         new_path = prefix + sep + extension
 
         # If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
@@ -175,16 +213,16 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
 
         try:
             if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
-                self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path)
+                self._downloader.to_screen('[youtube] Post-process file %s exists, skipping' % new_path)
             else:
-                self._downloader.to_screen(u'[' + self._get_executable() + '] Destination: ' + new_path)
+                self._downloader.to_screen('[' + self._executable + '] Destination: ' + new_path)
                 self.run_ffmpeg(path, new_path, acodec, more_opts)
         except:
-            etype,e,tb = sys.exc_info()
+            etype, e, tb = sys.exc_info()
             if isinstance(e, AudioConversionError):
-                msg = u'audio conversion failed: ' + e.msg
+                msg = 'audio conversion failed: ' + e.msg
             else:
-                msg = u'error running ' + self._get_executable()
+                msg = 'error running ' + self._executable
             raise PostProcessingError(msg)
 
         # Try to update the date time for extracted audio file.
@@ -192,30 +230,30 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
             try:
                 os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
             except:
-                self._downloader.report_warning(u'Cannot update utime of audio file')
+                self._downloader.report_warning('Cannot update utime of audio file')
 
         information['filepath'] = new_path
-        return self._nopostoverwrites,information
+        return self._nopostoverwrites, information
 
 
 class FFmpegVideoConvertor(FFmpegPostProcessor):
-    def __init__(self, downloader=None,preferedformat=None):
+    def __init__(self, downloader=None, preferedformat=None):
         super(FFmpegVideoConvertor, self).__init__(downloader)
-        self._preferedformat=preferedformat
+        self._preferedformat = preferedformat
 
     def run(self, information):
         path = information['filepath']
-        prefix, sep, ext = path.rpartition(u'.')
+        prefix, sep, ext = path.rpartition('.')
         outpath = prefix + sep + self._preferedformat
         if information['ext'] == self._preferedformat:
-            self._downloader.to_screen(u'[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
-            return True,information
-        self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) +outpath)
+            self._downloader.to_screen('[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
+            return True, information
+        self._downloader.to_screen('[' + 'ffmpeg' + '] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) + outpath)
         self.run_ffmpeg(path, outpath, [])
         information['filepath'] = outpath
         information['format'] = self._preferedformat
         information['ext'] = self._preferedformat
-        return False,information
+        return False, information
 
 
 class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
@@ -417,11 +455,11 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
         return cls._lang_map.get(code[:2])
 
     def run(self, information):
-        if information['ext'] != u'mp4':
-            self._downloader.to_screen(u'[ffmpeg] Subtitles can only be embedded in mp4 files')
+        if information['ext'] != 'mp4':
+            self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4 files')
             return True, information
         if not information.get('subtitles'):
-            self._downloader.to_screen(u'[ffmpeg] There aren\'t any subtitles to embed') 
+            self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to embed')
             return True, information
 
         sub_langs = [key for key in information['subtitles']]
@@ -430,14 +468,14 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
 
         opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy']
         for (i, lang) in enumerate(sub_langs):
-            opts.extend(['-map', '%d:0' % (i+1), '-c:s:%d' % i, 'mov_text'])
+            opts.extend(['-map', '%d:0' % (i + 1), '-c:s:%d' % i, 'mov_text'])
             lang_code = self._conver_lang_code(lang)
             if lang_code is not None:
                 opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code])
         opts.extend(['-f', 'mp4'])
 
-        temp_filename = filename + u'.temp'
-        self._downloader.to_screen(u'[ffmpeg] Embedding subtitles in \'%s\'' % filename)
+        temp_filename = filename + '.temp'
+        self._downloader.to_screen('[ffmpeg] Embedding subtitles in \'%s\'' % filename)
         self.run_ffmpeg_multiple_files(input_files, temp_filename, opts)
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
@@ -458,17 +496,21 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
             metadata['artist'] = info['uploader_id']
 
         if not metadata:
-            self._downloader.to_screen(u'[ffmpeg] There isn\'t any metadata to add')
+            self._downloader.to_screen('[ffmpeg] There isn\'t any metadata to add')
             return True, info
 
         filename = info['filepath']
         temp_filename = prepend_extension(filename, 'temp')
 
-        options = ['-c', 'copy']
+        if info['ext'] == 'm4a':
+            options = ['-vn', '-acodec', 'copy']
+        else:
+            options = ['-c', 'copy']
+
         for (name, value) in metadata.items():
             options.extend(['-metadata', '%s=%s' % (name, value)])
 
-        self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename)
+        self._downloader.to_screen('[ffmpeg] Adding metadata to \'%s\'' % filename)
         self.run_ffmpeg(filename, temp_filename, options)
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
@@ -478,8 +520,22 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
 class FFmpegMergerPP(FFmpegPostProcessor):
     def run(self, info):
         filename = info['filepath']
-        args = ['-c', 'copy']
-        self._downloader.to_screen(u'[ffmpeg] Merging formats into "%s"' % filename)
+        args = ['-c', 'copy', '-map', '0:v:0', '-map', '1:a:0', '-shortest']
+        self._downloader.to_screen('[ffmpeg] Merging formats into "%s"' % filename)
         self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
         return True, info
 
+
+class FFmpegAudioFixPP(FFmpegPostProcessor):
+    def run(self, info):
+        filename = info['filepath']
+        temp_filename = prepend_extension(filename, 'temp')
+
+        options = ['-vn', '-acodec', 'copy']
+        self._downloader.to_screen('[ffmpeg] Fixing audio file "%s"' % filename)
+        self.run_ffmpeg(filename, temp_filename, options)
+
+        os.remove(encodeFilename(filename))
+        os.rename(encodeFilename(temp_filename), encodeFilename(filename))
+
+        return True, info