Decoder Vertical Alignment - Decoder Vertical Alignment - 3.0 English - PG447

For the VCU2 decoder the output buffer vertical alignment of active video can be adjusted provided that actual buffer height is sufficient. For example, when the decoder gets 720x240 resolution video as input, then actual output video buffer resolution will be 736x256 (considering 64 line alignment). Configuration parameter output-position=<x,y> can be applied. The x and y parameters decide the position of active video data in the buffer. For example, if output-position is set to <0,1>, the top line in the video buffer is skipped and active video data will be written from the second line onwards.

ctrlsw-decoder -in in.avc -avc -o out.yuv --output-position 0,2

GStreamer output-position property.

gst-launch-1.0 filesrc location=in.avc ! h264parse ! omxh264dec output-position="<0,2>" ! filesink location=out.yuv