[embedthumbnail] Add support for mp3 cover embedding
[youtube-dl] / youtube_dl / postprocessor / ffmpeg.py
index b6f51cfd5e1ed5cebb4981dfbf3152e67ed33d1d..c01f2eedde3e54db2b138e783e81387a31efbc03 100644 (file)
@@ -3,7 +3,6 @@ from __future__ import unicode_literals
 import io
 import os
 import subprocess
-import sys
 import time
 
 
@@ -29,9 +28,8 @@ class FFmpegPostProcessorError(PostProcessingError):
 
 
 class FFmpegPostProcessor(PostProcessor):
-    def __init__(self, downloader=None, deletetempfiles=False):
+    def __init__(self, downloader=None):
         PostProcessor.__init__(self, downloader)
-        self._deletetempfiles = deletetempfiles
         self._determine_executables()
 
     def check_version(self):
@@ -117,6 +115,10 @@ class FFmpegPostProcessor(PostProcessor):
     def executable(self):
         return self._paths[self.basename]
 
+    @property
+    def probe_available(self):
+        return self.probe_basename is not None
+
     @property
     def probe_executable(self):
         return self._paths[self.probe_basename]
@@ -143,10 +145,7 @@ class FFmpegPostProcessor(PostProcessor):
             stderr = stderr.decode('utf-8', 'replace')
             msg = stderr.strip().split('\n')[-1]
             raise FFmpegPostProcessorError(msg)
-        os.utime(encodeFilename(out_path), (oldest_mtime, oldest_mtime))
-        if self._deletetempfiles:
-            for ipath in input_paths:
-                os.remove(ipath)
+        self.try_utime(out_path, oldest_mtime, oldest_mtime)
 
     def run_ffmpeg(self, path, out_path, opts):
         self.run_ffmpeg_multiple_files([path], out_path, opts)
@@ -169,7 +168,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
 
     def get_audio_codec(self, path):
 
-        if not self.probe_executable:
+        if not self.probe_available:
             raise PostProcessingError('ffprobe or avprobe not found. Please install one.')
         try:
             cmd = [
@@ -260,32 +259,30 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
         new_path = prefix + sep + extension
 
         # If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
-        if new_path == path:
-            self._nopostoverwrites = True
+        if (new_path == path or
+                (self._nopostoverwrites and os.path.exists(encodeFilename(new_path)))):
+            self._downloader.to_screen('[youtube] Post-process file %s exists, skipping' % new_path)
+            return [], information
 
         try:
-            if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
-                self._downloader.to_screen('[youtube] Post-process file %s exists, skipping' % new_path)
-            else:
-                self._downloader.to_screen('[' + self.basename + '] Destination: ' + new_path)
-                self.run_ffmpeg(path, new_path, acodec, more_opts)
-        except:
-            etype, e, tb = sys.exc_info()
-            if isinstance(e, AudioConversionError):
-                msg = 'audio conversion failed: ' + e.msg
-            else:
-                msg = 'error running ' + self.basename
-            raise PostProcessingError(msg)
+            self._downloader.to_screen('[' + self.basename + '] Destination: ' + new_path)
+            self.run_ffmpeg(path, new_path, acodec, more_opts)
+        except AudioConversionError as e:
+            raise PostProcessingError(
+                'audio conversion failed: ' + e.msg)
+        except Exception:
+            raise PostProcessingError('error running ' + self.basename)
 
         # Try to update the date time for extracted audio file.
         if information.get('filetime') is not None:
-            try:
-                os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
-            except:
-                self._downloader.report_warning('Cannot update utime of audio file')
+            self.try_utime(
+                new_path, time.time(), information['filetime'],
+                errnote='Cannot update utime of audio file')
 
         information['filepath'] = new_path
-        return self._nopostoverwrites, information
+        information['ext'] = extension
+
+        return [path], information
 
 
 class FFmpegVideoConvertorPP(FFmpegPostProcessor):
@@ -299,13 +296,13 @@ class FFmpegVideoConvertorPP(FFmpegPostProcessor):
         outpath = prefix + sep + self._preferedformat
         if information['ext'] == self._preferedformat:
             self._downloader.to_screen('[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
-            return True, information
+            return [], 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 [path], information
 
 
 class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
@@ -505,15 +502,16 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
     def run(self, information):
         if information['ext'] != 'mp4':
             self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4 files')
-            return True, information
+            return [], information
         subtitles = information.get('requested_subtitles')
         if not subtitles:
             self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to embed')
-            return True, information
+            return [], information
 
         sub_langs = list(subtitles.keys())
         filename = information['filepath']
-        input_files = [filename] + [subtitles_filename(filename, lang, sub_info['ext']) for lang, sub_info in subtitles.items()]
+        sub_filenames = [subtitles_filename(filename, lang, sub_info['ext']) for lang, sub_info in subtitles.items()]
+        input_files = [filename] + sub_filenames
 
         opts = [
             '-map', '0',
@@ -535,7 +533,7 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
 
-        return True, information
+        return sub_filenames, information
 
 
 class FFmpegMetadataPP(FFmpegPostProcessor):
@@ -561,7 +559,7 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
 
         if not metadata:
             self._downloader.to_screen('[ffmpeg] There isn\'t any metadata to add')
-            return True, info
+            return [], info
 
         filename = info['filepath']
         temp_filename = prepend_extension(filename, 'temp')
@@ -578,16 +576,18 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
         self.run_ffmpeg(filename, temp_filename, options)
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
-        return True, info
+        return [], info
 
 
 class FFmpegMergerPP(FFmpegPostProcessor):
     def run(self, info):
         filename = info['filepath']
+        temp_filename = prepend_extension(filename, 'temp')
         args = ['-c', 'copy', '-map', '0:v:0', '-map', '1:a:0']
         self._downloader.to_screen('[ffmpeg] Merging formats into "%s"' % filename)
-        self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
-        return True, info
+        self.run_ffmpeg_multiple_files(info['__files_to_merge'], temp_filename, args)
+        os.rename(encodeFilename(temp_filename), encodeFilename(filename))
+        return info['__files_to_merge'], info
 
 
 class FFmpegAudioFixPP(FFmpegPostProcessor):
@@ -602,14 +602,14 @@ class FFmpegAudioFixPP(FFmpegPostProcessor):
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
 
-        return True, info
+        return [], info
 
 
 class FFmpegFixupStretchedPP(FFmpegPostProcessor):
     def run(self, info):
         stretched_ratio = info.get('stretched_ratio')
         if stretched_ratio is None or stretched_ratio == 1:
-            return True, info
+            return [], info
 
         filename = info['filepath']
         temp_filename = prepend_extension(filename, 'temp')
@@ -621,13 +621,13 @@ class FFmpegFixupStretchedPP(FFmpegPostProcessor):
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
 
-        return True, info
+        return [], info
 
 
 class FFmpegFixupM4aPP(FFmpegPostProcessor):
     def run(self, info):
         if info.get('container') != 'm4a_dash':
-            return True, info
+            return [], info
 
         filename = info['filepath']
         temp_filename = prepend_extension(filename, 'temp')
@@ -639,7 +639,7 @@ class FFmpegFixupM4aPP(FFmpegPostProcessor):
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
 
-        return True, info
+        return [], info
 
 
 class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
@@ -656,7 +656,7 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
             new_format = 'webvtt'
         if subs is None:
             self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to convert')
-            return True, info
+            return [], info
         self._downloader.to_screen('[ffmpeg] Converting subtitles')
         for lang, sub in subs.items():
             ext = sub['ext']
@@ -676,4 +676,4 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
                     'data': f.read(),
                 }
 
-        return True, info
+        return [], info