static int init_display(X11DisplaySink* sink, const StreamInfo* streamInfo)
{
if (!sink->displayInitialised)
{
CHK_OFAIL(x11c_prepare_display(&sink->x11Common));
}
sink->inputWidth = streamInfo->width;
sink->inputHeight = streamInfo->height;
sink->width = sink->inputWidth / sink->swScale;
sink->height = sink->inputHeight / sink->swScale;
sink->aspectRatio.num = 4;
sink->aspectRatio.den = 3;
sink->displayWidth = sink->width;
sink->displayHeight = sink->height;
if (streamInfo->format == UYVY_FORMAT ||
streamInfo->format == UYVY_10BIT_FORMAT)
{
sink->yuvFormat = UYVY;
}
else if (streamInfo->format == YUV422_FORMAT)
{
sink->yuvFormat = YV16;
}
else /* streamInfo->format == YUV420_FORMAT */
{
sink->yuvFormat = I420;
}
/* check if we can use shared memory */
sink->useSharedMemory = x11c_shared_memory_available(&sink->x11Common);
CHK_OFAIL(x11c_init_window(&sink->x11Common, sink->displayWidth, sink->displayHeight, sink->width, sink->height));
sink->displayInitialised = 1;
sink->displayInitFailed = 0;
return 1;
fail:
sink->displayInitialised = 0;
sink->displayInitFailed = 1;
return 0;
}
static int init_display(X11XVDisplaySink* sink, const StreamInfo* streamInfo)
{
double wFactor;
Rational sampleAspectRatio;
if (!sink->displayInitialised)
{
CHK_OFAIL(x11c_prepare_display(&sink->x11Common));
}
sink->inputWidth = streamInfo->width;
sink->inputHeight = streamInfo->height;
sink->width = sink->inputWidth / sink->swScale;
sink->height = sink->inputHeight / sink->swScale;
if (streamInfo->format == UYVY_FORMAT)
{
sink->outputYUVFormat = UYVY;
}
else if (streamInfo->format == YUV420_FORMAT || streamInfo->format == YUV420_10BIT_FORMAT)
{
sink->outputYUVFormat = I420;
}
else /* streamInfo->format == UYVY_10BIT_FORMAT or YUV422_FORMAT or YUV422_10BIT_FORMAT or YUV444_FORMAT */
{
/* format is converted to UYVY */
sink->outputYUVFormat = UYVY;
}
if (streamInfo->aspectRatio.num > 0 && streamInfo->aspectRatio.den > 0)
{
sink->aspectRatio = streamInfo->aspectRatio;
/* default to square pixels */
sampleAspectRatio = (Rational){1, 1};
if (sink->inputWidth == 720 || sink->inputWidth == 702 || sink->inputWidth == 704 ||
sink->inputWidth == 360 || sink->inputWidth == 351 || sink->inputWidth == 352 ||
sink->inputWidth == 288)
{
/* assume rec. 601 non-square pixels */
if (streamInfo->frameRate.num == 25 && streamInfo->frameRate.den == 1) {
if (streamInfo->aspectRatio.num == 4 && streamInfo->aspectRatio.den == 3) {
/* 4:3 625 line */
sampleAspectRatio = (Rational){59, 54};
}
else if (streamInfo->aspectRatio.num == 16 && streamInfo->aspectRatio.den == 9) {
/* 16:9 625 line */
sampleAspectRatio = (Rational){118, 81};
}
} else if (streamInfo->frameRate.num == 30000 && streamInfo->frameRate.den == 1001) {
if (streamInfo->aspectRatio.num == 4 && streamInfo->aspectRatio.den == 3) {
/* 4:3 525 line */
sampleAspectRatio = (Rational){10, 11};
}
else if (streamInfo->aspectRatio.num == 16 && streamInfo->aspectRatio.den == 9) {
/* 16:9 525 line */
sampleAspectRatio = (Rational){40, 33};
}
}
}
else if (((sink->inputHeight == 1080 && sink->inputWidth == 1440) ||
(sink->inputHeight == 720 && sink->inputWidth == 960)) &&
streamInfo->aspectRatio.num == 4 && streamInfo->aspectRatio.den == 3)
{
/* DVCPro-HD and AVC-Intra class 50 */
sampleAspectRatio = (Rational){4, 3};
}
else if (sink->inputHeight == 1080 && sink->inputWidth == 1280 &&
streamInfo->aspectRatio.num == 3 && streamInfo->aspectRatio.den == 2)
{
/* DVCPro-HD 1080i60 */
sampleAspectRatio = (Rational){3, 2};
}
sampleAspectRatio.num *= sink->pixelAspectRatio.den;
sampleAspectRatio.den *= sink->pixelAspectRatio.num;
wFactor = (sampleAspectRatio.num * sink->pixelAspectRatio.den) /
(double)(sampleAspectRatio.den * sink->pixelAspectRatio.num);
/* scale in horizontal direction only to avoid dealing with interlacing */
sink->initialDisplayWidth = (int)(wFactor * sink->width);
sink->initialDisplayHeight = sink->height;
sink->initialDisplayWidth *= sink->scale;
sink->initialDisplayHeight *= sink->scale;
}
else
{
sink->aspectRatio = (Rational){4, 3};
sink->initialDisplayWidth = sink->width;
sink->initialDisplayHeight = sink->height;
}
sink->inputVideoFormat = streamInfo->format;
if (streamInfo->format == UYVY_FORMAT ||
streamInfo->format == UYVY_10BIT_FORMAT ||
streamInfo->format == YUV422_FORMAT ||
streamInfo->format == YUV422_10BIT_FORMAT ||
streamInfo->format == YUV444_FORMAT)
{
sink->frameFormat = X11_FOURCC('U','Y','V','Y');
sink->frameSize = sink->width * sink->height * 2;
sink->outputVideoFormat = UYVY_FORMAT;
}
else /* YUV420_FORMAT || YUV420_10BIT_FORMAT*/
{
sink->frameFormat = X11_FOURCC('I','4','2','0');
sink->frameSize = sink->width * sink->height * 3 / 2;
sink->outputVideoFormat = streamInfo->format;
}
/* Check that we have access to an XVideo port providing this chroma */
/* Commonly supported chromas: YV12, I420, YUY2, YUY2 */
XLockDisplay(sink->x11Common.windowInfo.display);
sink->xvport = XVideoGetPort(sink->x11Common.windowInfo.display, sink->frameFormat, -1);
XUnlockDisplay(sink->x11Common.windowInfo.display);
if (sink->xvport < 0)
{
ml_log_error("Cannot find an xv port for requested video format\n");
goto fail;
}
/* check if we can use shared memory */
sink->useSharedMemory = x11c_shared_memory_available(&sink->x11Common);
CHK_OFAIL(x11c_init_window(&sink->x11Common, sink->initialDisplayWidth, sink->initialDisplayHeight, sink->width, sink->height));
sink->displayInitialised = 1;
sink->displayInitFailed = 0;
return 1;
fail:
sink->displayInitialised = 0;
sink->displayInitFailed = 1;
return 0;
}
