Restore __ANDROID_API__ guards for camera/media headers

Partial revert of "Add __INTRODUCED_IN to audio/camera/media headers.",
commit 85a41536a4885b12120ddafb4d0b3fee8a8613b6.

Restore the API guards where they used to exist. I *could* add
__ANDROID_API__ around only the function declarations, which is what the
versioner would do, but the function declarations are mixed up with the
types and constants, so I'd need to add a bunch of __ANDROID_API__ checks
or reorganize the headers.

NdkMediaFormat.h and AAudio.h still have __INTRODUCED_IN symbols that
aren't guarded by __ANDROID_API__. Maybe those files should be reorganized
so they don't alternate between APIs so much.

Test: builds
Bug: http://b/111668906
Bug: http://b/113052379
Change-Id: I757a6097f7840ea50e2fc92db7defef493097672
Merged-In: I757a6097f7840ea50e2fc92db7defef493097672
(cherry picked from commit 0c9470cec23a62876c398bc6ab9ac7e1588e2bba)
diff --git a/media/ndk/include/media/NdkImage.h b/media/ndk/include/media/NdkImage.h
index 38e12e3..5562e82 100644
--- a/media/ndk/include/media/NdkImage.h
+++ b/media/ndk/include/media/NdkImage.h
@@ -516,6 +516,8 @@
     int32_t bottom;
 } AImageCropRect;
 
+#if __ANDROID_API__ >= 24
+
 /**
  * Return the image back the the system and delete the AImage object from memory.
  *
@@ -712,6 +714,10 @@
         const AImage* image, int planeIdx,
         /*out*/uint8_t** data, /*out*/int* dataLength) __INTRODUCED_IN(24);
 
+#endif /* __ANDROID_API__ >= 24 */
+
+#if __ANDROID_API__ >= 26
+
 /**
  * Return the image back the the system and delete the AImage object from memory asynchronously.
  *
@@ -756,6 +762,8 @@
  */
 media_status_t AImage_getHardwareBuffer(const AImage* image, /*out*/AHardwareBuffer** buffer) __INTRODUCED_IN(26);
 
+#endif /* __ANDROID_API__ >= 26 */
+
 __END_DECLS
 
 #endif //_NDK_IMAGE_H
diff --git a/media/ndk/include/media/NdkImageReader.h b/media/ndk/include/media/NdkImageReader.h
index eb1a44a..68de176 100644
--- a/media/ndk/include/media/NdkImageReader.h
+++ b/media/ndk/include/media/NdkImageReader.h
@@ -50,6 +50,8 @@
  */
 typedef struct AImageReader AImageReader;
 
+#if __ANDROID_API__ >= 24
+
 /**
  * Create a new reader for images of the desired size and format.
  *
@@ -296,6 +298,10 @@
 media_status_t AImageReader_setImageListener(
         AImageReader* reader, AImageReader_ImageListener* listener) __INTRODUCED_IN(24);
 
+#endif /* __ANDROID_API__ >= 24 */
+
+#if __ANDROID_API__ >= 26
+
 /**
  * AImageReader constructor similar to {@link AImageReader_new} that takes an additional parameter
  * for the consumer usage. All other parameters and the return values are identical to those passed
@@ -455,6 +461,8 @@
 media_status_t AImageReader_setBufferRemovedListener(
         AImageReader* reader, AImageReader_BufferRemovedListener* listener) __INTRODUCED_IN(26);
 
+#endif /* __ANDROID_API__ >= 26 */
+
 __END_DECLS
 
 #endif //_NDK_IMAGE_READER_H
diff --git a/media/ndk/include/media/NdkMediaCodec.h b/media/ndk/include/media/NdkMediaCodec.h
index b329b39..9dc120d 100644
--- a/media/ndk/include/media/NdkMediaCodec.h
+++ b/media/ndk/include/media/NdkMediaCodec.h
@@ -121,6 +121,8 @@
       AMediaCodecOnAsyncError           onAsyncError;
 };
 
+#if __ANDROID_API__ >= 21
+
 /**
  * Create codec by name. Use this if you know the exact codec you want to use.
  * When configuring, you will need to specify whether to use the codec as an
@@ -274,6 +276,8 @@
 media_status_t AMediaCodec_releaseOutputBufferAtTime(
         AMediaCodec *mData, size_t idx, int64_t timestampNs) __INTRODUCED_IN(21);
 
+#if __ANDROID_API__ >= 26
+
 /**
  * Creates a Surface that can be used as the input to encoder, in place of input buffers
  *
@@ -344,6 +348,10 @@
  */
 media_status_t AMediaCodec_signalEndOfInputStream(AMediaCodec *mData) __INTRODUCED_IN(26);
 
+#endif /* __ANDROID_API__ >= 26 */
+
+#if __ANDROID_API__ >= 28
+
 /**
  * Get the component name. If the codec was created by createDecoderByType
  * or createEncoderByType, what component is chosen is not known beforehand.
@@ -405,6 +413,8 @@
  */
 bool AMediaCodecActionCode_isTransient(int32_t actionCode) __INTRODUCED_IN(28);
 
+#endif /* __ANDROID_API__ >= 28 */
+
 typedef enum {
     AMEDIACODECRYPTOINFO_MODE_CLEAR = 0,
     AMEDIACODECRYPTOINFO_MODE_AES_CTR = 1,
@@ -483,6 +493,8 @@
  */
 media_status_t AMediaCodecCryptoInfo_getEncryptedBytes(AMediaCodecCryptoInfo*, size_t *dst) __INTRODUCED_IN(21);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 __END_DECLS
 
 #endif //_NDK_MEDIA_CODEC_H
diff --git a/media/ndk/include/media/NdkMediaCrypto.h b/media/ndk/include/media/NdkMediaCrypto.h
index b673adc..bcdf9a0 100644
--- a/media/ndk/include/media/NdkMediaCrypto.h
+++ b/media/ndk/include/media/NdkMediaCrypto.h
@@ -47,6 +47,8 @@
 
 typedef uint8_t AMediaUUID[16];
 
+#if __ANDROID_API__ >= 21
+
 bool AMediaCrypto_isCryptoSchemeSupported(const AMediaUUID uuid) __INTRODUCED_IN(21);
 
 bool AMediaCrypto_requiresSecureDecoderComponent(const char *mime) __INTRODUCED_IN(21);
@@ -55,6 +57,8 @@
 
 void AMediaCrypto_delete(AMediaCrypto* crypto) __INTRODUCED_IN(21);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_CRYPTO_H
diff --git a/media/ndk/include/media/NdkMediaDataSource.h b/media/ndk/include/media/NdkMediaDataSource.h
index 3a4373c..ea5ba0c 100644
--- a/media/ndk/include/media/NdkMediaDataSource.h
+++ b/media/ndk/include/media/NdkMediaDataSource.h
@@ -38,6 +38,8 @@
 struct AMediaDataSource;
 typedef struct AMediaDataSource AMediaDataSource;
 
+#if __ANDROID_API__ >= 28
+
 /*
  * AMediaDataSource's callbacks will be invoked on an implementation-defined thread
  * or thread pool. No guarantees are provided about which thread(s) will be used for
@@ -133,6 +135,8 @@
         AMediaDataSource*,
         AMediaDataSourceClose) __INTRODUCED_IN(28);
 
+#endif  /*__ANDROID_API__ >= 28 */
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_DATASOURCE_H
diff --git a/media/ndk/include/media/NdkMediaDrm.h b/media/ndk/include/media/NdkMediaDrm.h
index 24c0d6d..0209681 100644
--- a/media/ndk/include/media/NdkMediaDrm.h
+++ b/media/ndk/include/media/NdkMediaDrm.h
@@ -87,6 +87,8 @@
 typedef void (*AMediaDrmEventListener)(AMediaDrm *, const AMediaDrmSessionId *sessionId,
         AMediaDrmEventType eventType, int extra, const uint8_t *data, size_t dataSize);
 
+#if __ANDROID_API__ >= 21
+
 /**
  * Query if the given scheme identified by its UUID is supported on this device, and
  * whether the drm plugin is able to handle the media container format specified by mimeType.
@@ -459,6 +461,8 @@
         const char *macAlgorithm, uint8_t *keyId, const uint8_t *message, size_t messageSize,
         const uint8_t *signature, size_t signatureSize) __INTRODUCED_IN(21);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 __END_DECLS
 
 #endif //_NDK_MEDIA_DRM_H
diff --git a/media/ndk/include/media/NdkMediaExtractor.h b/media/ndk/include/media/NdkMediaExtractor.h
index 9f60891..6a1796f 100644
--- a/media/ndk/include/media/NdkMediaExtractor.h
+++ b/media/ndk/include/media/NdkMediaExtractor.h
@@ -49,6 +49,8 @@
 struct AMediaExtractor;
 typedef struct AMediaExtractor AMediaExtractor;
 
+#if __ANDROID_API__ >= 21
+
 /**
  * Create new media extractor
  */
@@ -72,12 +74,16 @@
         const char *location) __INTRODUCED_IN(21);
         // TODO support headers
 
+#if __ANDROID_API__ >= 28
+
 /**
  * Set the custom data source implementation from which the extractor will read.
  */
 media_status_t AMediaExtractor_setDataSourceCustom(AMediaExtractor*,
         AMediaDataSource *src) __INTRODUCED_IN(28);
 
+#endif /* __ANDROID_API__ >= 28 */
+
 /**
  * Return the number of tracks in the previously specified media file
  */
@@ -173,6 +179,8 @@
     AMEDIAEXTRACTOR_SAMPLE_FLAG_ENCRYPTED = 2,
 };
 
+#if __ANDROID_API__ >= 28
+
 /**
  * Returns the format of the extractor. The caller must free the returned format
  * using AMediaFormat_delete(format).
@@ -219,6 +227,10 @@
 media_status_t AMediaExtractor_getSampleFormat(AMediaExtractor *ex,
         AMediaFormat *fmt) __INTRODUCED_IN(28);
 
+#endif /* __ANDROID_API__ >= 28 */
+
+#endif /* __ANDROID_API__ >= 21 */
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_EXTRACTOR_H
diff --git a/media/ndk/include/media/NdkMediaFormat.h b/media/ndk/include/media/NdkMediaFormat.h
index 8f37f7b..5f7804d 100644
--- a/media/ndk/include/media/NdkMediaFormat.h
+++ b/media/ndk/include/media/NdkMediaFormat.h
@@ -46,6 +46,8 @@
 struct AMediaFormat;
 typedef struct AMediaFormat AMediaFormat;
 
+#if __ANDROID_API__ >= 21
+
 AMediaFormat *AMediaFormat_new() __INTRODUCED_IN(21);
 media_status_t AMediaFormat_delete(AMediaFormat*) __INTRODUCED_IN(21);
 
@@ -155,6 +157,9 @@
 extern const char* AMEDIAFORMAT_KEY_TRACK_INDEX __INTRODUCED_IN(28);
 extern const char* AMEDIAFORMAT_KEY_WIDTH __INTRODUCED_IN(21);
 
+#endif /* __ANDROID_API__ >= 21 */
+
+#if __ANDROID_API__ >= 28
 bool AMediaFormat_getDouble(AMediaFormat*, const char *name, double *out) __INTRODUCED_IN(28);
 bool AMediaFormat_getRect(AMediaFormat*, const char *name,
         int32_t *left, int32_t *top, int32_t *right, int32_t *bottom) __INTRODUCED_IN(28);
@@ -163,6 +168,7 @@
 void AMediaFormat_setSize(AMediaFormat*, const char* name, size_t value) __INTRODUCED_IN(28);
 void AMediaFormat_setRect(AMediaFormat*, const char* name,
         int32_t left, int32_t top, int32_t right, int32_t bottom) __INTRODUCED_IN(28);
+#endif /* __ANDROID_API__ >= 28 */
 
 __END_DECLS
 
diff --git a/media/ndk/include/media/NdkMediaMuxer.h b/media/ndk/include/media/NdkMediaMuxer.h
index 75c70ed..7393867 100644
--- a/media/ndk/include/media/NdkMediaMuxer.h
+++ b/media/ndk/include/media/NdkMediaMuxer.h
@@ -53,6 +53,8 @@
     AMEDIAMUXER_OUTPUT_FORMAT_WEBM   = 1,
 } OutputFormat;
 
+#if __ANDROID_API__ >= 21
+
 /**
  * Create new media muxer
  */
@@ -121,6 +123,8 @@
         size_t trackIdx, const uint8_t *data,
         const AMediaCodecBufferInfo *info) __INTRODUCED_IN(21);
 
+#endif /* __ANDROID_API__ >= 21 */
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_MUXER_H