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Type:
Bug
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 5.7.2
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Fix Version/s: 5.6.0-HF24, 5.7.3
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Component/s: Convert
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Backlog priority:500
Raised by NXP-12230 which fixes the swallow of the command execution failure, the test org.nuxeo.ecm.platform.video.convert.VideoConvertersTest.testScreenshotConverter() fails on command:
$ ffmpeg -y -ss "0" -i "/tmp/elephantsdream-160-mpeg4-su-ac3.avi" -f image2 "/tmp/test.jpg" fails with
error [image2 @ 0x267f780] Could not get frame filename number 2 from pattern '/tmp/test.jpg'
This is because multiple images are produced. Using the following command fixes the issue:
$ ffmpeg -y -ss "0" -i "/tmp/elephantsdream-160-mpeg4-su-ac3.avi" -f image2 "/tmp/test_%05d.jpg"
Another fix is using the option -vframes 1 which is used by the StoryboardConverter but not the ScreenshotConverter:
./nuxeo-platform-video-convert/src/main/java/org/nuxeo/ecm/platform/video/convert/ScreenshotConverter.java:57: public static final String FFMPEG_SCREENSHOT_COMMAND = "ffmpeg-screenshot"; ./nuxeo-platform-video-convert/src/main/java/org/nuxeo/ecm/platform/video/convert/StoryboardConverter.java:66: public static final String FFMPEG_SCREENSHOT_RESIZE_COMMAND = "ffmpeg-screenshot-resize"; <command name="ffmpeg-screenshot" enabled="true"> <!-- It's important to put the -ss option before the -i option for faster (though less accurate) seek / skip to position in the input file --> <parameterString> -y -ss #{position} -i #{inFilePath} -f image2 #{outFilePath}</parameterString> </command> <command name="ffmpeg-screenshot-resize" enabled="true"> <!-- It's important to put the -ss option before the -i option for faster (though less accurate) seek / skip to position in the input file. The -vframes 1 option tell to take only one screenshot. This is necessary as apparent the use of the "-s" option forces ffmpeg to switch in "many output files" mode. --> <parameterString> -y -ss #{position} -i #{inFilePath} -vframes 1 -f image2 -s #{width}x#{height} #{outFilePath}</parameterString> </command>
