Hi, everyone
I'm using DM365 to decode 4 channel MPEG4 stream from net and display it on TV in 1280x720, when the stream resolution is 432x240, so I need to resize it to 640x360 each channel, but when I do the resize using DMAI API, for one channel, I got an jitter frame, for several channel, you know I use one resizer to resize 4 channel after it decode in 4 thread, got frames confuse each other like picture followed, and I try to resize it smaller than 432x240 it works well, or when I make the horizontal or vertical not change and only change the other one, it can works well when lower 2x, and when the other direction bigger than 2x, the problem appeared, anyone meet this before, any suggest will be appreciate
I'm using 4 thread to decode and resize stream but to share on resizer and tmpbuf like
if (channel == 0) {
hRsz = Resize_create(&rszAttrs);
if (hRsz == NULL) {
printf("Failed to create resize job\n");
goto cleanup;
}
gfxAttrs.dim.x = 0;
gfxAttrs.dim.y = 0;
gfxAttrs.dim.width = DST_WIDTH;
gfxAttrs.dim.height = DST_HEIGHT;
gfxAttrs.colorSpace = colorSpace;
gfxAttrs.dim.lineLength =((Int32)((BufferGfx_calcLineLength(gfxAttrs.dim.width,colorSpace)+31)/32))*32;
int tmpsize = 0;
if(colorSpace == ColorSpace_YUV420PSEMI){
tmpsize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height*3/2;
}else{
tmpsize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height;
}
htmpBuf = Buffer_create(tmpsize, BufferGfx_getBufferAttrs(&gfxAttrs));
if (htmpBuf == NULL) {
ERR("Failed to allocate htmpBuf %s\n", serverIP);
goto cleanup;
}
if (Resize_config(hRsz, BufTab_getBuf(BufTab, 0), htmpBuf) < 0) {
printf("Failed to configure resize job\n");
goto cleanup;
}
}
and pictures to make clearly for the problem, first one is the right display, and second is what I mentioned above, you should notice that the 3 channel have some pixel should be channel 2 on top and a lot should be channel 1 in middle,
