Initial check-in for xml-based encoder capabilities retrieval
- Changed the Java API as suggested
- Treat /etc/media_profiles.xml as the default xml configurtion file
diff --git a/include/media/MediaProfiles.h b/include/media/MediaProfiles.h
new file mode 100644
index 0000000..be928ec
--- /dev/null
+++ b/include/media/MediaProfiles.h
@@ -0,0 +1,303 @@
+/*
+ **
+ ** Copyright 2010, The Android Open Source Project.
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPROFILES_H
+#define ANDROID_MEDIAPROFILES_H
+
+#include <utils/threads.h>
+#include <media/mediarecorder.h>
+
+namespace android {
+
+enum camcorder_quality {
+ CAMCORDER_QUALITY_HIGH = 0,
+ CAMCORDER_QUALITY_LOW = 1
+};
+
+enum video_decoder {
+ VIDEO_DECODER_WMV,
+};
+
+enum audio_decoder {
+ AUDIO_DECODER_WMA,
+};
+
+
+class MediaProfiles
+{
+public:
+
+ /**
+ * Returns the singleton instance for subsequence queries.
+ * or NULL if error.
+ */
+ static MediaProfiles* getInstance();
+
+ /**
+ * Returns the value for the given param name at the given quality level,
+ * or -1 if error.
+ *
+ * Supported param name are:
+ * file.format - output file format. see mediarecorder.h for details
+ * codec.vid - video encoder. see mediarecorder.h for details.
+ * codec.aud - audio encoder. see mediarecorder.h for details.
+ * vid.width - video frame width
+ * vid.height - video frame height
+ * vid.fps - video frame rate
+ * vid.bps - video bit rate
+ * aud.bps - audio bit rate
+ * aud.hz - audio sample rate
+ * aud.ch - number of audio channels
+ */
+ int getCamcorderProfileParamByName(const char *name, camcorder_quality quality) const;
+
+ /**
+ * Returns the output file formats supported.
+ */
+ Vector<output_format> getOutputFileFormats() const;
+
+ /**
+ * Returns the video encoders supported.
+ */
+ Vector<video_encoder> getVideoEncoders() const;
+
+ /**
+ * Returns the value for the given param name for the given video encoder
+ * returned from getVideoEncoderByIndex or -1 if error.
+ *
+ * Supported param name are:
+ * enc.vid.width.min - min video frame width
+ * enc.vid.width.max - max video frame width
+ * enc.vid.height.min - min video frame height
+ * enc.vid.height.max - max video frame height
+ * enc.vid.bps.min - min bit rate in bits per second
+ * enc.vid.bps.max - max bit rate in bits per second
+ * enc.vid.fps.min - min frame rate in frames per second
+ * enc.vid.fps.max - max frame rate in frames per second
+ */
+ int getVideoEncoderParamByName(const char *name, video_encoder codec) const;
+
+ /**
+ * Returns the audio encoders supported.
+ */
+ Vector<audio_encoder> getAudioEncoders() const;
+
+ /**
+ * Returns the value for the given param name for the given audio encoder
+ * returned from getAudioEncoderByIndex or -1 if error.
+ *
+ * Supported param name are:
+ * enc.aud.ch.min - min number of channels
+ * enc.aud.ch.max - max number of channels
+ * enc.aud.bps.min - min bit rate in bits per second
+ * enc.aud.bps.max - max bit rate in bits per second
+ * enc.aud.hz.min - min sample rate in samples per second
+ * enc.aud.hz.max - max sample rate in samples per second
+ */
+ int getAudioEncoderParamByName(const char *name, audio_encoder codec) const;
+
+ /**
+ * Returns the video decoders supported.
+ */
+ Vector<video_decoder> getVideoDecoders() const;
+
+ /**
+ * Returns the audio decoders supported.
+ */
+ Vector<audio_decoder> getAudioDecoders() const;
+
+private:
+ MediaProfiles& operator=(const MediaProfiles&); // Don't call me
+ MediaProfiles(const MediaProfiles&); // Don't call me
+ MediaProfiles() {} // Dummy default constructor
+ ~MediaProfiles(); // Don't delete me
+
+ struct VideoCodec {
+ VideoCodec(video_encoder codec, int bitRate, int frameWidth, int frameHeight, int frameRate)
+ : mCodec(codec),
+ mBitRate(bitRate),
+ mFrameWidth(frameWidth),
+ mFrameHeight(frameHeight),
+ mFrameRate(frameRate) {}
+
+ ~VideoCodec() {}
+
+ video_encoder mCodec;
+ int mBitRate;
+ int mFrameWidth;
+ int mFrameHeight;
+ int mFrameRate;
+ };
+
+ struct AudioCodec {
+ AudioCodec(audio_encoder codec, int bitRate, int sampleRate, int channels)
+ : mCodec(codec),
+ mBitRate(bitRate),
+ mSampleRate(sampleRate),
+ mChannels(channels) {}
+
+ ~AudioCodec() {}
+
+ audio_encoder mCodec;
+ int mBitRate;
+ int mSampleRate;
+ int mChannels;
+ };
+
+ struct CamcorderProfile {
+ CamcorderProfile()
+ : mFileFormat(OUTPUT_FORMAT_THREE_GPP),
+ mQuality(CAMCORDER_QUALITY_HIGH),
+ mDuration(0),
+ mVideoCodec(0),
+ mAudioCodec(0) {}
+
+ ~CamcorderProfile() {
+ delete mVideoCodec;
+ delete mAudioCodec;
+ }
+
+ output_format mFileFormat;
+ camcorder_quality mQuality;
+ int mDuration;
+ VideoCodec *mVideoCodec;
+ AudioCodec *mAudioCodec;
+ };
+
+ struct VideoEncoderCap {
+ // Ugly constructor
+ VideoEncoderCap(video_encoder codec,
+ int minBitRate, int maxBitRate,
+ int minFrameWidth, int maxFrameWidth,
+ int minFrameHeight, int maxFrameHeight,
+ int minFrameRate, int maxFrameRate)
+ : mCodec(codec),
+ mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
+ mMinFrameWidth(minFrameWidth), mMaxFrameWidth(maxFrameWidth),
+ mMinFrameHeight(minFrameHeight), mMaxFrameHeight(maxFrameHeight),
+ mMinFrameRate(minFrameRate), mMaxFrameRate(maxFrameRate) {}
+
+ ~VideoEncoderCap() {}
+
+ video_encoder mCodec;
+ int mMinBitRate, mMaxBitRate;
+ int mMinFrameWidth, mMaxFrameWidth;
+ int mMinFrameHeight, mMaxFrameHeight;
+ int mMinFrameRate, mMaxFrameRate;
+ };
+
+ struct AudioEncoderCap {
+ // Ugly constructor
+ AudioEncoderCap(audio_encoder codec,
+ int minBitRate, int maxBitRate,
+ int minSampleRate, int maxSampleRate,
+ int minChannels, int maxChannels)
+ : mCodec(codec),
+ mMinBitRate(minBitRate), mMaxBitRate(maxBitRate),
+ mMinSampleRate(minSampleRate), mMaxSampleRate(maxSampleRate),
+ mMinChannels(minChannels), mMaxChannels(maxChannels) {}
+
+ ~AudioEncoderCap() {}
+
+ audio_encoder mCodec;
+ int mMinBitRate, mMaxBitRate;
+ int mMinSampleRate, mMaxSampleRate;
+ int mMinChannels, mMaxChannels;
+ };
+
+ struct VideoDecoderCap {
+ VideoDecoderCap(video_decoder codec): mCodec(codec) {}
+ ~VideoDecoderCap() {}
+
+ video_decoder mCodec;
+ };
+
+ struct AudioDecoderCap {
+ AudioDecoderCap(audio_decoder codec): mCodec(codec) {}
+ ~AudioDecoderCap() {}
+
+ audio_decoder mCodec;
+ };
+
+ struct NameToTagMap {
+ const char* name;
+ int tag;
+ };
+
+ // Debug
+ static void logVideoCodec(const VideoCodec& codec);
+ static void logAudioCodec(const AudioCodec& codec);
+ static void logVideoEncoderCap(const VideoEncoderCap& cap);
+ static void logAudioEncoderCap(const AudioEncoderCap& cap);
+ static void logVideoDecoderCap(const VideoDecoderCap& cap);
+ static void logAudioDecoderCap(const AudioDecoderCap& cap);
+
+ // If the xml configuration file does exist, use the settings
+ // from the xml
+ static MediaProfiles* createInstanceFromXmlFile(const char *xml);
+ static output_format createEncoderOutputFileFormat(const char **atts);
+ static VideoCodec* createVideoCodec(const char **atts, MediaProfiles *profiles);
+ static AudioCodec* createAudioCodec(const char **atts, MediaProfiles *profiles);
+ static AudioDecoderCap* createAudioDecoderCap(const char **atts);
+ static VideoDecoderCap* createVideoDecoderCap(const char **atts);
+ static VideoEncoderCap* createVideoEncoderCap(const char **atts);
+ static AudioEncoderCap* createAudioEncoderCap(const char **atts);
+ static CamcorderProfile* createCamcorderProfile(const char **atts);
+
+ // Customized element tag handler for parsing the xml configuration file.
+ static void startElementHandler(void *userData, const char *name, const char **atts);
+
+ // If the xml configuration file does not exist, use hard-coded values
+ static MediaProfiles* createDefaultInstance();
+ static CamcorderProfile *createDefaultCamcorderLowProfile();
+ static CamcorderProfile *createDefaultCamcorderHighProfile();
+ static void createDefaultCamcorderProfiles(MediaProfiles *profiles);
+ static void createDefaultVideoEncoders(MediaProfiles *profiles);
+ static void createDefaultAudioEncoders(MediaProfiles *profiles);
+ static void createDefaultVideoDecoders(MediaProfiles *profiles);
+ static void createDefaultAudioDecoders(MediaProfiles *profiles);
+ static void createDefaultEncoderOutputFileFormats(MediaProfiles *profiles);
+ static VideoEncoderCap* createDefaultH263VideoEncoderCap();
+ static VideoEncoderCap* createDefaultM4vVideoEncoderCap();
+ static AudioEncoderCap* createDefaultAmrNBEncoderCap();
+
+ static int findTagForName(const NameToTagMap *map, size_t nMappings, const char *name);
+
+ // Mappings from name (for instance, codec name) to enum value
+ static const NameToTagMap sVideoEncoderNameMap[];
+ static const NameToTagMap sAudioEncoderNameMap[];
+ static const NameToTagMap sFileFormatMap[];
+ static const NameToTagMap sVideoDecoderNameMap[];
+ static const NameToTagMap sAudioDecoderNameMap[];
+ static const NameToTagMap sCamcorderQualityNameMap[];
+
+ static bool sIsInitialized;
+ static MediaProfiles *sInstance;
+ static Mutex sLock;
+
+ Vector<CamcorderProfile*> mCamcorderProfiles;
+ Vector<AudioEncoderCap*> mAudioEncoders;
+ Vector<VideoEncoderCap*> mVideoEncoders;
+ Vector<AudioDecoderCap*> mAudioDecoders;
+ Vector<VideoDecoderCap*> mVideoDecoders;
+ Vector<output_format> mEncoderOutputFileFormats;
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAPROFILES_H
+