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Make MediaCodecVideoRenderer.getCodecMaxInputSize public.
PiperOrigin-RevId: 439866306
This commit is contained in:
olly
Ian Baker
parent
61a20d5f68
commit
9fd75ac129
1 changed files with 76 additions and 76 deletions
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@ -750,6 +750,82 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
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frameReleaseHelper.onPlaybackSpeed(currentPlaybackSpeed);
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frameReleaseHelper.onPlaybackSpeed(currentPlaybackSpeed);
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}
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}
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/**
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* Returns a maximum input size for a given codec and format.
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*
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* @param codecInfo Information about the {@link MediaCodec} being configured.
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* @param format The format.
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* @return A maximum input size in bytes, or {@link Format#NO_VALUE} if a maximum could not be
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* determined.
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*/
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public static int getCodecMaxInputSize(MediaCodecInfo codecInfo, Format format) {
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int width = format.width;
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int height = format.height;
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if (width == Format.NO_VALUE || height == Format.NO_VALUE) {
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// We can't infer a maximum input size without video dimensions.
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return Format.NO_VALUE;
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}
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String sampleMimeType = format.sampleMimeType;
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if (MimeTypes.VIDEO_DOLBY_VISION.equals(sampleMimeType)) {
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// Dolby vision can be a wrapper around H264 or H265. We assume it's wrapping H265 by default
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// because it's the common case, and because some devices may fail to allocate the codec when
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// the larger buffer size required for H264 is requested. We size buffers for H264 only if the
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// format contains sufficient information for us to determine unambiguously that it's a H264
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// profile.
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sampleMimeType = MimeTypes.VIDEO_H265;
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@Nullable
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Pair<Integer, Integer> codecProfileAndLevel = MediaCodecUtil.getCodecProfileAndLevel(format);
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if (codecProfileAndLevel != null) {
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int profile = codecProfileAndLevel.first;
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if (profile == CodecProfileLevel.DolbyVisionProfileDvavSe
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|| profile == CodecProfileLevel.DolbyVisionProfileDvavPer
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|| profile == CodecProfileLevel.DolbyVisionProfileDvavPen) {
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sampleMimeType = MimeTypes.VIDEO_H264;
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}
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}
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}
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// Attempt to infer a maximum input size from the format.
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int maxPixels;
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int minCompressionRatio;
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switch (sampleMimeType) {
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case MimeTypes.VIDEO_H263:
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case MimeTypes.VIDEO_MP4V:
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maxPixels = width * height;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_H264:
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if ("BRAVIA 4K 2015".equals(Util.MODEL) // Sony Bravia 4K
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|| ("Amazon".equals(Util.MANUFACTURER)
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&& ("KFSOWI".equals(Util.MODEL) // Kindle Soho
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|| ("AFTS".equals(Util.MODEL) && codecInfo.secure)))) { // Fire TV Gen 2
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// Use the default value for cases where platform limitations may prevent buffers of the
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// calculated maximum input size from being allocated.
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return Format.NO_VALUE;
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}
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// Round up width/height to an integer number of macroblocks.
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maxPixels = Util.ceilDivide(width, 16) * Util.ceilDivide(height, 16) * 16 * 16;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_VP8:
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// VPX does not specify a ratio so use the values from the platform's SoftVPX.cpp.
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maxPixels = width * height;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_H265:
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case MimeTypes.VIDEO_VP9:
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maxPixels = width * height;
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minCompressionRatio = 4;
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break;
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default:
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// Leave the default max input size.
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return Format.NO_VALUE;
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}
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// Estimate the maximum input size assuming three channel 4:2:0 subsampled input frames.
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return (maxPixels * 3) / (2 * minCompressionRatio);
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}
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@Override
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@Override
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protected float getCodecOperatingRateV23(
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protected float getCodecOperatingRateV23(
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float targetPlaybackSpeed, Format format, Format[] streamFormats) {
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float targetPlaybackSpeed, Format format, Format[] streamFormats) {
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@ -1582,82 +1658,6 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
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}
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}
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}
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}
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/**
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* Returns a maximum input size for a given codec and format.
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*
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* @param codecInfo Information about the {@link MediaCodec} being configured.
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* @param format The format.
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* @return A maximum input size in bytes, or {@link Format#NO_VALUE} if a maximum could not be
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* determined.
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*/
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private static int getCodecMaxInputSize(MediaCodecInfo codecInfo, Format format) {
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int width = format.width;
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int height = format.height;
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if (width == Format.NO_VALUE || height == Format.NO_VALUE) {
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// We can't infer a maximum input size without video dimensions.
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return Format.NO_VALUE;
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}
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String sampleMimeType = format.sampleMimeType;
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if (MimeTypes.VIDEO_DOLBY_VISION.equals(sampleMimeType)) {
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// Dolby vision can be a wrapper around H264 or H265. We assume it's wrapping H265 by default
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// because it's the common case, and because some devices may fail to allocate the codec when
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// the larger buffer size required for H264 is requested. We size buffers for H264 only if the
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// format contains sufficient information for us to determine unambiguously that it's a H264
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// profile.
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sampleMimeType = MimeTypes.VIDEO_H265;
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@Nullable
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Pair<Integer, Integer> codecProfileAndLevel = MediaCodecUtil.getCodecProfileAndLevel(format);
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if (codecProfileAndLevel != null) {
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int profile = codecProfileAndLevel.first;
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if (profile == CodecProfileLevel.DolbyVisionProfileDvavSe
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|| profile == CodecProfileLevel.DolbyVisionProfileDvavPer
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|| profile == CodecProfileLevel.DolbyVisionProfileDvavPen) {
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sampleMimeType = MimeTypes.VIDEO_H264;
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}
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}
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}
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// Attempt to infer a maximum input size from the format.
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int maxPixels;
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int minCompressionRatio;
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switch (sampleMimeType) {
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case MimeTypes.VIDEO_H263:
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case MimeTypes.VIDEO_MP4V:
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maxPixels = width * height;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_H264:
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if ("BRAVIA 4K 2015".equals(Util.MODEL) // Sony Bravia 4K
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|| ("Amazon".equals(Util.MANUFACTURER)
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&& ("KFSOWI".equals(Util.MODEL) // Kindle Soho
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|| ("AFTS".equals(Util.MODEL) && codecInfo.secure)))) { // Fire TV Gen 2
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// Use the default value for cases where platform limitations may prevent buffers of the
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// calculated maximum input size from being allocated.
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return Format.NO_VALUE;
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}
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// Round up width/height to an integer number of macroblocks.
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maxPixels = Util.ceilDivide(width, 16) * Util.ceilDivide(height, 16) * 16 * 16;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_VP8:
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// VPX does not specify a ratio so use the values from the platform's SoftVPX.cpp.
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maxPixels = width * height;
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minCompressionRatio = 2;
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break;
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case MimeTypes.VIDEO_H265:
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case MimeTypes.VIDEO_VP9:
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maxPixels = width * height;
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minCompressionRatio = 4;
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break;
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default:
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// Leave the default max input size.
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return Format.NO_VALUE;
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}
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// Estimate the maximum input size assuming three channel 4:2:0 subsampled input frames.
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return (maxPixels * 3) / (2 * minCompressionRatio);
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}
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/**
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/**
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* Returns whether the device is known to do post processing by default that isn't compatible with
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* Returns whether the device is known to do post processing by default that isn't compatible with
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* ExoPlayer.
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* ExoPlayer.
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