|
| 1 | +import os |
| 2 | + |
| 3 | +# Check if environment is setup to run the tests |
| 4 | +if os.environ.get('AVTRANSCODER_TEST_VIDEO_AVI_FILE') is None or os.environ.get('AVTRANSCODER_TEST_AUDIO_WAVE_FILE') is None: |
| 5 | + from nose.plugins.skip import SkipTest |
| 6 | + raise SkipTest("Need to define environment variables " |
| 7 | + "AVTRANSCODER_TEST_VIDEO_AVI_FILE and " |
| 8 | + "AVTRANSCODER_TEST_AUDIO_WAVE_FILE") |
| 9 | + |
| 10 | +from nose.tools import * |
| 11 | + |
| 12 | +from pyAvTranscoder import avtranscoder as av |
| 13 | + |
| 14 | + |
| 15 | +@raises(RuntimeError) |
| 16 | +def testUnknwonFilter(): |
| 17 | + """ |
| 18 | + Try to create an unknown filter. |
| 19 | + """ |
| 20 | + unknwonFilter = av.Filter("unknwonFilter") |
| 21 | + |
| 22 | + |
| 23 | +def testFilterAttributes(): |
| 24 | + """ |
| 25 | + Check the attributes of an exiting filter. |
| 26 | + """ |
| 27 | + # video filter |
| 28 | + options = "75:52"; |
| 29 | + name = "scale" |
| 30 | + scale = av.Filter(name, options) |
| 31 | + |
| 32 | + assert_equals(scale.getName(), name) |
| 33 | + assert_equals(scale.getOptions(), options) |
| 34 | + assert_equals(scale.getInstanceName(), name) |
| 35 | + |
| 36 | + # audio filter |
| 37 | + options = ""; |
| 38 | + name = "volume" |
| 39 | + instanceName = "vol1" |
| 40 | + volume = av.Filter(name, options, instanceName) |
| 41 | + |
| 42 | + # same instance name |
| 43 | + assert_equals(volume.getName(), name) |
| 44 | + assert_equals(volume.getOptions(), options) |
| 45 | + assert_equals(volume.getInstanceName(), instanceName) |
| 46 | + |
| 47 | +def testVideoTranscodeWithFilter(): |
| 48 | + """ |
| 49 | + A video transcode with a yadif filter. |
| 50 | + """ |
| 51 | + inputFileName = os.environ['AVTRANSCODER_TEST_VIDEO_AVI_FILE'] |
| 52 | + outputFileName = "testVideoTranscodeWithFilter.avi" |
| 53 | + |
| 54 | + ouputFile = av.OutputFile( outputFileName ) |
| 55 | + transcoder = av.Transcoder( ouputFile ) |
| 56 | + |
| 57 | + inputFile = av.InputFile( inputFileName ) |
| 58 | + src_videoStream = inputFile.getProperties().getVideoProperties()[0] |
| 59 | + |
| 60 | + # transcode the video stream |
| 61 | + videoStreamIndex = src_videoStream.getStreamIndex() |
| 62 | + customProfile = av.ProfileMap() |
| 63 | + customProfile[av.avProfileIdentificator] = "customProfile" |
| 64 | + customProfile[av.avProfileIdentificatorHuman] = "custom profile" |
| 65 | + customProfile[av.avProfileType] = av.avProfileTypeVideo |
| 66 | + customProfile[av.avProfileCodec] = "mpeg2video" |
| 67 | + customProfile[av.avProfilePixelFormat] = "yuv420p" |
| 68 | + transcoder.add( inputFileName, videoStreamIndex, customProfile ) |
| 69 | + |
| 70 | + # add yadif filter |
| 71 | + streamTranscoder = transcoder.getStreamTranscoder(0) |
| 72 | + filterGraph = streamTranscoder.getFilterGraph() |
| 73 | + filterGraph.addFilter("yadif") |
| 74 | + |
| 75 | + progress = av.ConsoleProgress() |
| 76 | + processStat = transcoder.process( progress ) |
| 77 | + |
| 78 | + # check process stat returned |
| 79 | + videoStat = processStat.getVideoStat(0) |
| 80 | + assert_equals(src_videoStream.getDuration(), videoStat.getDuration()) |
| 81 | + assert_equals(int(src_videoStream.getDuration() * src_videoStream.getFps()), videoStat.getNbFrames()) |
| 82 | + |
| 83 | + # get dst file of transcode |
| 84 | + dst_inputFile = av.InputFile( outputFileName ) |
| 85 | + dst_properties = dst_inputFile.getProperties() |
| 86 | + dst_videoStream = dst_properties.getVideoProperties()[0] |
| 87 | + |
| 88 | + assert_equals( "mpeg2video", dst_videoStream.getCodecName() ) |
| 89 | + assert_equals( "yuv420p", dst_videoStream.getPixelProperties().getPixelName() ) |
| 90 | + |
| 91 | + |
| 92 | +def testAudioTranscodeWithFilter(): |
| 93 | + """ |
| 94 | + An audio transcode with a volume filter. |
| 95 | + """ |
| 96 | + inputFileName = os.environ['AVTRANSCODER_TEST_AUDIO_WAVE_FILE'] |
| 97 | + outputFileName = "testAudioTranscodeWithFilter.wav" |
| 98 | + |
| 99 | + ouputFile = av.OutputFile( outputFileName ) |
| 100 | + transcoder = av.Transcoder( ouputFile ) |
| 101 | + |
| 102 | + inputFile = av.InputFile( inputFileName ) |
| 103 | + src_audioStream = inputFile.getProperties().getAudioProperties()[0] |
| 104 | + |
| 105 | + # transcode the video stream |
| 106 | + audioStreamIndex = src_audioStream.getStreamIndex() |
| 107 | + transcoder.add( inputFileName, audioStreamIndex, "wave24b48kmono" ) |
| 108 | + |
| 109 | + # add volume filter (here +150% of current volume) |
| 110 | + streamTranscoder = transcoder.getStreamTranscoder(0) |
| 111 | + filterGraph = streamTranscoder.getFilterGraph() |
| 112 | + filterGraph.addFilter("volume", "1.5") |
| 113 | + |
| 114 | + progress = av.ConsoleProgress() |
| 115 | + processStat = transcoder.process( progress ) |
| 116 | + |
| 117 | + # check process stat returned |
| 118 | + audioStat = processStat.getAudioStat(0) |
| 119 | + assert_equals(src_audioStream.getDuration(), audioStat.getDuration()) |
| 120 | + |
| 121 | + # get dst file of transcode |
| 122 | + dst_inputFile = av.InputFile( outputFileName ) |
| 123 | + dst_properties = dst_inputFile.getProperties() |
| 124 | + dst_audioStream = dst_properties.getAudioProperties()[0] |
| 125 | + |
| 126 | + assert_equals( "pcm_s24le", dst_audioStream.getCodecName() ) |
| 127 | + assert_equals( "s32", dst_audioStream.getSampleFormatName() ) |
| 128 | + assert_equals( "signed 32 bits", dst_audioStream.getSampleFormatLongName() ) |
| 129 | + assert_equals( 48000, dst_audioStream.getSampleRate() ) |
| 130 | + assert_equals( 1, dst_audioStream.getNbChannels() ) |
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