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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/android/media_codec_util.h"
#include <stddef.h>
#include <algorithm>
#include "base/android/build_info.h"
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "jni/MediaCodecUtil_jni.h"
#include "url/gurl.h"
using base::android::AttachCurrentThread;
using base::android::ConvertJavaStringToUTF8;
using base::android::ConvertUTF8ToJavaString;
using base::android::JavaIntArrayToIntVector;
using base::android::ScopedJavaLocalRef;
namespace media {
static std::string CodecTypeToAndroidMimeType(const std::string& codec) {
// TODO(xhwang): Shall we handle more detailed strings like "mp4a.40.2"?
if (codec == "avc1")
return "video/avc";
if (codec == "hvc1")
return "video/hevc";
if (codec == "mp4a")
return "audio/mp4a-latm";
if (codec == "vp8" || codec == "vp8.0")
return "video/x-vnd.on2.vp8";
if (codec == "vp9" || codec == "vp9.0")
return "video/x-vnd.on2.vp9";
if (codec == "vorbis")
return "audio/vorbis";
if (codec == "opus")
return "audio/opus";
return std::string();
}
static std::string GetDefaultCodecName(const std::string& mime_type,
MediaCodecDirection direction) {
DCHECK(MediaCodecUtil::IsMediaCodecAvailable());
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jstring> j_mime = ConvertUTF8ToJavaString(env, mime_type);
ScopedJavaLocalRef<jstring> j_codec_name =
Java_MediaCodecUtil_getDefaultCodecName(env, j_mime.obj(), direction);
return ConvertJavaStringToUTF8(env, j_codec_name.obj());
}
static bool IsDecoderSupportedByDevice(const std::string& mime_type) {
DCHECK(MediaCodecUtil::IsMediaCodecAvailable());
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jstring> j_mime = ConvertUTF8ToJavaString(env, mime_type);
return Java_MediaCodecUtil_isDecoderSupportedForDevice(env, j_mime.obj());
}
// static
bool MediaCodecUtil::IsMediaCodecAvailable() {
// MediaCodec is only available on JB and greater.
if (base::android::BuildInfo::GetInstance()->sdk_int() < 16)
return false;
// Blacklist some devices on Jellybean as for MediaCodec support is buggy.
// http://crbug.com/365494.
if (base::android::BuildInfo::GetInstance()->sdk_int() == 16) {
std::string model(base::android::BuildInfo::GetInstance()->model());
return model != "GT-I9100" && model != "GT-I9300" && model != "GT-N7000";
}
return true;
}
// static
bool MediaCodecUtil::SupportsSetParameters() {
// MediaCodec.setParameters() is only available starting with K.
return base::android::BuildInfo::GetInstance()->sdk_int() >= 19;
}
// static
std::set<int> MediaCodecUtil::GetEncoderColorFormats(
const std::string& mime_type) {
std::set<int> color_formats;
if (!IsMediaCodecAvailable())
return color_formats;
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jstring> j_mime = ConvertUTF8ToJavaString(env, mime_type);
ScopedJavaLocalRef<jintArray> j_color_format_array =
Java_MediaCodecUtil_getEncoderColorFormatsForMime(env, j_mime.obj());
if (j_color_format_array.obj()) {
std::vector<int> formats;
JavaIntArrayToIntVector(env, j_color_format_array.obj(), &formats);
color_formats = std::set<int>(formats.begin(), formats.end());
}
return color_formats;
}
// static
bool MediaCodecUtil::CanDecode(const std::string& codec, bool is_secure) {
if (!IsMediaCodecAvailable())
return false;
JNIEnv* env = AttachCurrentThread();
std::string mime = CodecTypeToAndroidMimeType(codec);
if (mime.empty())
return false;
ScopedJavaLocalRef<jstring> j_mime = ConvertUTF8ToJavaString(env, mime);
return Java_MediaCodecUtil_canDecode(env, j_mime.obj(), is_secure);
}
// static
bool MediaCodecUtil::IsKnownUnaccelerated(const std::string& mime_type,
MediaCodecDirection direction) {
if (!IsMediaCodecAvailable())
return true;
std::string codec_name = GetDefaultCodecName(mime_type, direction);
DVLOG(1) << __FUNCTION__ << "Default codec for " << mime_type << " : "
<< codec_name << ", direction: " << direction;
if (!codec_name.size())
return true;
// MediaTek hardware vp8 is known slower than the software implementation.
// MediaTek hardware vp9 is known crashy, see http://crbug.com/446974 and
// http://crbug.com/597836.
if (base::StartsWith(codec_name, "OMX.MTK.", base::CompareCase::SENSITIVE)) {
if (mime_type == "video/x-vnd.on2.vp8")
return true;
if (mime_type == "video/x-vnd.on2.vp9")
return base::android::BuildInfo::GetInstance()->sdk_int() < 21;
return false;
}
// It would be nice if MediaCodecInfo externalized some notion of
// HW-acceleration but it doesn't. Android Media guidance is that the
// "OMX.google" prefix is always used for SW decoders, so that's what we
// use. "OMX.SEC.*" codec is Samsung software implementation - report it
// as unaccelerated as well.
return base::StartsWith(codec_name, "OMX.google.",
base::CompareCase::SENSITIVE) ||
base::StartsWith(codec_name, "OMX.SEC.", base::CompareCase::SENSITIVE);
}
// static
bool MediaCodecUtil::IsHLSPath(const GURL& url) {
if (!url.SchemeIsHTTPOrHTTPS() && !url.SchemeIsFile())
return false;
std::string path = url.path();
return base::EndsWith(path, ".m3u8", base::CompareCase::INSENSITIVE_ASCII);
}
// static
bool MediaCodecUtil::IsHLSURL(const GURL& url) {
if (!url.SchemeIsHTTPOrHTTPS() && !url.SchemeIsFile())
return false;
std::string spec = url.spec();
if (base::EndsWith(spec, ".m3u8", base::CompareCase::INSENSITIVE_ASCII))
return true;
return (spec.find("m3u8") != std::string::npos);
}
// static
bool MediaCodecUtil::RegisterMediaCodecUtil(JNIEnv* env) {
return RegisterNativesImpl(env);
}
// static
bool MediaCodecUtil::IsVp8DecoderAvailable() {
return IsMediaCodecAvailable() &&
IsDecoderSupportedByDevice(CodecTypeToAndroidMimeType("vp8"));
}
// static
bool MediaCodecUtil::IsVp8EncoderAvailable() {
// Currently the vp8 encoder and decoder blacklists cover the same devices,
// but we have a second method for clarity in future issues.
return IsVp8DecoderAvailable();
}
// static
bool MediaCodecUtil::IsVp9DecoderAvailable() {
return IsMediaCodecAvailable() &&
IsDecoderSupportedByDevice(CodecTypeToAndroidMimeType("vp9"));
}
// static
bool MediaCodecUtil::IsSurfaceViewOutputSupported() {
// Disable SurfaceView output for the Samsung Galaxy S3; it does not work
// well enough for even 360p24 H264 playback. http://crbug.com/602870.
//
// Notably this is not codec agnostic at present, so any devices added to
// the blacklist will avoid trying to play any codecs on SurfaceView. If
// needed in the future this can be expanded to be codec specific.
return !base::StartsWith(base::android::BuildInfo::GetInstance()->model(),
"GT-I9300", base::CompareCase::INSENSITIVE_ASCII);
}
} // namespace media
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