signed 32 bit audio in QuickTime container

[Daniel Sperka]

Hi - 

   I have run into a set of QuickTime videos that I can no longer play using gstreamer/playbin. 

   To be more precise, the video stream plays, and the audio stream of the original files _seems_ to play, but no sound is audible. 

   Original file - on my mac and linux box, with gstreamer-1.12, I get video, but no audio:

gst-launch-1.0 playbin uri=http://systems.ucdavis.edu/habit/cs4s4.mov

The mac has a conversion tool, and the converted file plays fine on both mac and linux:

gst-launch-1.0 playbin uri=http://systems.ucdavis.edu/habit/cs4s4.m4v

(Using GST_DEBUG_DUMP_DOT_DIR,....) The difference in audio streams seems to be that the original is S32BE, which is converted to S32LE in audioconverter element, but which still gives no sound output. The converted file has F32LE and is not modified by the audioconverter element, and the expected sound is present.

   Is there a way to coax gstreamer to correctly play the original *.mov file? 

Dan

 

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