本文整理汇总了Java中com.google.android.exoplayer2.util.MimeTypes.VIDEO_H263属性的典型用法代码示例。如果您正苦于以下问题：Java MimeTypes.VIDEO_H263属性的具体用法？Java MimeTypes.VIDEO_H263怎么用？Java MimeTypes.VIDEO_H263使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类com.google.android.exoplayer2.util.MimeTypes的用法示例。
在下文中一共展示了MimeTypes.VIDEO_H263属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getMaxInputSize
/**
* Returns a maximum input size for a given mime type, width and height.
*
* @param sampleMimeType The format mime type.
* @param width The width in pixels.
* @param height The height in pixels.
* @return A maximum input size in bytes, or {@link Format#NO_VALUE} if a maximum could not be
* determined.
*/
private static int getMaxInputSize(String sampleMimeType, int width, int height) {
if (width == Format.NO_VALUE || height == Format.NO_VALUE) {
// We can't infer a maximum input size without video dimensions.
return Format.NO_VALUE;
}
// Attempt to infer a maximum input size from the format.
int maxPixels;
int minCompressionRatio;
switch (sampleMimeType) {
case MimeTypes.VIDEO_H263:
case MimeTypes.VIDEO_MP4V:
maxPixels = width * height;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_H264:
if ("BRAVIA 4K 2015".equals(Util.MODEL)) {
// The Sony BRAVIA 4k TV has input buffers that are too small for the calculated 4k video
// maximum input size, so use the default value.
return Format.NO_VALUE;
}
// Round up width/height to an integer number of macroblocks.
maxPixels = Util.ceilDivide(width, 16) * Util.ceilDivide(height, 16) * 16 * 16;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_VP8:
// VPX does not specify a ratio so use the values from the platform's SoftVPX.cpp.
maxPixels = width * height;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_H265:
case MimeTypes.VIDEO_VP9:
maxPixels = width * height;
minCompressionRatio = 4;
break;
default:
// Leave the default max input size.
return Format.NO_VALUE;
}
// Estimate the maximum input size assuming three channel 4:2:0 subsampled input frames.
return (maxPixels * 3) / (2 * minCompressionRatio);
}
示例2: getMaxInputSize
/**
* Returns a maximum input size for a given format.
*
* @param format The format.
* @return An maximum input size in bytes, or {@link Format#NO_VALUE} if a maximum could not be
* determined.
*/
private static int getMaxInputSize(Format format) {
if (format.maxInputSize != Format.NO_VALUE) {
// The format defines an explicit maximum input size.
return format.maxInputSize;
}
if (format.width == Format.NO_VALUE || format.height == Format.NO_VALUE) {
// We can't infer a maximum input size without video dimensions.
return Format.NO_VALUE;
}
// Attempt to infer a maximum input size from the format.
int maxPixels;
int minCompressionRatio;
switch (format.sampleMimeType) {
case MimeTypes.VIDEO_H263:
case MimeTypes.VIDEO_MP4V:
maxPixels = format.width * format.height;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_H264:
if ("BRAVIA 4K 2015".equals(Util.MODEL)) {
// The Sony BRAVIA 4k TV has input buffers that are too small for the calculated 4k video
// maximum input size, so use the default value.
return Format.NO_VALUE;
}
// Round up width/height to an integer number of macroblocks.
maxPixels = ((format.width + 15) / 16) * ((format.height + 15) / 16) * 16 * 16;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_VP8:
// VPX does not specify a ratio so use the values from the platform's SoftVPX.cpp.
maxPixels = format.width * format.height;
minCompressionRatio = 2;
break;
case MimeTypes.VIDEO_H265:
case MimeTypes.VIDEO_VP9:
maxPixels = format.width * format.height;
minCompressionRatio = 4;
break;
default:
// Leave the default max input size.
return Format.NO_VALUE;
}
// Estimate the maximum input size assuming three channel 4:2:0 subsampled input frames.
return (maxPixels * 3) / (2 * minCompressionRatio);
}