- Decoding with single instance
- Decode the H.265 input file using four decoder elements simultaneously and
saving them to separate files. It uses the single decoder instance i.e
/dev/allegroDecodeIP0
gst-launch-1.0 filesrc location=input_1920x1080.mp4 ! qtdemux ! h265parse ! tee name=t t. ! queue ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_0_1920x1080.yuv" t. ! queue ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_1_1920x1080.yuv" t. ! queue ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_2_1920x1080.yuv" t. ! queue ! omxh265dec ! queue max-size-bytes=0 ! filesink location="output_3_1920x1080.yuv"Note: The tee element is used to feed same input file into four decoder channels; you can use separate gst-launch-1.0 application to feed different inputs as below.gst-launch-1.0 filesrc location=input_0_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_0_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_1_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_1_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_2_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_2_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_3_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_3_1920x1080.yuv" &
- Decoding with multi decoder instances
- Below example shows how to decode multiple encoded streams on different
decoder
instances.
gst-launch-1.0 filesrc location=input_0_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP0" ! queue max-size-bytes=0 ! filesink location="output_0_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_1_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP1" ! queue max-size-bytes=0 ! filesink location="output_1_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_2_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP2" ! queue max-size-bytes=0 ! filesink location="output_2_1920x1080.yuv" & gst-launch-1.0 filesrc location=input_3_1920x1080.mp4 ! qtdemux ! h265parse ! omxh265dec device="/dev/allegroDecodeIP3" ! queue max-size-bytes=0 ! filesink location="output_3_1920x1080.yuv" &