FFmpeg API for thumbnail extraction and transcoding in CIS implemented

[living-lab-site.git] / cis / api / ffmpeg.py

diff --git a/cis/api/ffmpeg.py b/cis/api/ffmpeg.py
deleted file mode 100644 (file)
index 35650ee..0000000
--- a/cis/api/ffmpeg.py
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/usr/bin/env python
-
-"""
-Classes derived from BaseTranscoder and BaseThumbExtractor for transcoding of
-videos and thumbnail extraction from videos using FFmpeg CLI program.
-"""
-
-import base
-import cis_exceptions
-import subprocess
-import os
-
-class FFmpegTranscoder(base.BaseTranscoder):
-    """
-    FFmpeg CLI API for video transcoding.
-    """
-
-    prog_bin = "ffmpeg"
-
-    log_file = 'log/ffmpeg.log'
-
-    containers = {
-        "avi": "avi",
-        "flv": "flv",
-        "mp4": "mp4",
-        "ogg": "ogg",
-        "webm": "webm",
-        "mpegts": "mpegts"
-    }
-    a_codecs = {
-        "mp3": "libmp3lame",
-        "vorbis": "libvorbis"
-    }
-    v_codecs = {
-        "h264": "libx264",
-        "theora": "libtheora",
-        "vp8": "libvpx"
-    }
-
-    def _transcode(self, container, a_codec=None, v_codec=None,
-            a_bitrate=None, a_samplingrate=None, a_channels=None,
-            v_bitrate=None, v_framerate=None, v_resolution=None, v_dar=None):
-
-        args = self.prog_bin + ' -i "' + self.input_file + '" -f ' + container
-        
-        # Audio
-        if a_codec != None:
-            args += ' -acodec ' + a_codec
-            if a_bitrate != None:
-                args += ' -ab ' + str(a_bitrate)
-            if a_samplingrate != None:
-                args += ' -ar ' + str(a_samplingrate)
-            if a_channels != None:
-                args += ' -ac ' + str(a_channels)
-        
-        # Video
-        if v_codec != None:
-            args += ' -vcodec ' + v_codec
-            # Video codec specific options.
-            if v_codec == 'libx264':
-                args += ' -vpre normal'
-            if v_bitrate != None:
-                args += ' -b ' + str(v_bitrate)
-            if v_framerate != None:
-                args += ' -r ' + str(v_framerate)
-            if v_resolution != None:
-                args += ' -s ' + v_resolution
-            if v_dar != None:
-                args += ' -aspect ' + v_dar
-        
-        # Output file.
-        args += ' "' + self.output_file + '"'
-        try:
-            os.unlink(self.output_file)
-        except OSError:
-            pass
-            
-        # READ handler for process's output.
-        p = subprocess.Popen(args, shell=True, 
-                stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
-        pipe = p.stdout
-
-        # WRITE handler for logging.
-        log = open(self.log_file, 'w')
-
-        while True:
-            line = pipe.readline()
-            if len(line) == 0:
-                break
-            log.write(line)
-
-        if p.poll() > 0:
-            raise cis_exceptions.TranscodingException
-
-        log.close()