android_media_MediaProfiles.cpp revision d32fba411f2710ad66681466674c8243f2ca3454 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "MediaProfilesJNI"
19#include <utils/Log.h>
20
21#include <stdio.h>
22#include <utils/threads.h>
23
24#include "jni.h"
25#include "JNIHelp.h"
26#include "android_runtime/AndroidRuntime.h"
27#include <media/MediaProfiles.h>
28
29using namespace android;
30
31static Mutex sLock;
32MediaProfiles *sProfiles = NULL;
33
34// This function is called from a static block in MediaProfiles.java class,
35// which won't run until the first time an instance of this class is used.
36static void
37android_media_MediaProfiles_native_init(JNIEnv *env)
38{
39    LOGV("native_init");
40    Mutex::Autolock lock(sLock);
41
42    if (sProfiles == NULL) {
43        sProfiles = MediaProfiles::getInstance();
44    }
45}
46
47static jint
48android_media_MediaProfiles_native_get_num_file_formats(JNIEnv *env, jobject thiz)
49{
50    LOGV("native_get_num_file_formats");
51    return sProfiles->getOutputFileFormats().size();
52}
53
54static jint
55android_media_MediaProfiles_native_get_file_format(JNIEnv *env, jobject thiz, jint index)
56{
57    LOGV("native_get_file_format: %d", index);
58    Vector<output_format> formats = sProfiles->getOutputFileFormats();
59    int nSize = formats.size();
60    if (index < 0 || index >= nSize) {
61        jniThrowException(env, "java/lang/IllegalArgumentException", "out of array boundary");
62        return -1;
63    }
64    return static_cast<jint>(formats[index]);
65}
66
67static jint
68android_media_MediaProfiles_native_get_num_video_encoders(JNIEnv *env, jobject thiz)
69{
70    LOGV("native_get_num_video_encoders");
71    return sProfiles->getVideoEncoders().size();
72}
73
74static jobject
75android_media_MediaProfiles_native_get_video_encoder_cap(JNIEnv *env, jobject thiz, jint index)
76{
77    LOGV("native_get_video_encoder_cap: %d", index);
78    Vector<video_encoder> encoders = sProfiles->getVideoEncoders();
79    int nSize = encoders.size();
80    if (index < 0 || index >= nSize) {
81        jniThrowException(env, "java/lang/IllegalArgumentException", "out of array boundary");
82        return NULL;
83    }
84
85    video_encoder encoder = encoders[index];
86    int minBitRate = sProfiles->getVideoEncoderParamByName("enc.vid.bps.min", encoder);
87    int maxBitRate = sProfiles->getVideoEncoderParamByName("enc.vid.bps.max", encoder);
88    int minFrameRate = sProfiles->getVideoEncoderParamByName("enc.vid.fps.min", encoder);
89    int maxFrameRate = sProfiles->getVideoEncoderParamByName("enc.vid.fps.max", encoder);
90    int minFrameWidth = sProfiles->getVideoEncoderParamByName("enc.vid.width.min", encoder);
91    int maxFrameWidth = sProfiles->getVideoEncoderParamByName("enc.vid.width.max", encoder);
92    int minFrameHeight = sProfiles->getVideoEncoderParamByName("enc.vid.height.min", encoder);
93    int maxFrameHeight = sProfiles->getVideoEncoderParamByName("enc.vid.height.max", encoder);
94
95    // Check on the values retrieved
96    if ((minBitRate == -1 || maxBitRate == -1) ||
97        (minFrameRate == -1 || maxFrameRate == -1) ||
98        (minFrameWidth == -1 || maxFrameWidth == -1) ||
99        (minFrameHeight == -1 || maxFrameHeight == -1)) {
100
101        jniThrowException(env, "java/lang/RuntimeException", "Error retrieving video encoder capability params");
102        return NULL;
103    }
104
105    // Construct an instance of the VideoEncoderCap and set its member variables
106    jclass videoEncoderCapClazz = env->FindClass("android/media/EncoderCapabilities$VideoEncoderCap");
107    jmethodID videoEncoderCapConstructorMethodID = env->GetMethodID(videoEncoderCapClazz, "<init>", "(IIIIIIIII)V");
108    jobject cap = env->NewObject(videoEncoderCapClazz,
109                                 videoEncoderCapConstructorMethodID,
110                                 static_cast<int>(encoder),
111                                 minBitRate, maxBitRate,
112                                 minFrameRate, maxFrameRate,
113                                 minFrameWidth, maxFrameWidth,
114                                 minFrameHeight, maxFrameHeight);
115    return cap;
116}
117
118static jint
119android_media_MediaProfiles_native_get_num_audio_encoders(JNIEnv *env, jobject thiz)
120{
121    LOGV("native_get_num_audio_encoders");
122    return sProfiles->getAudioEncoders().size();
123}
124
125static jobject
126android_media_MediaProfiles_native_get_audio_encoder_cap(JNIEnv *env, jobject thiz, jint index)
127{
128    LOGV("native_get_audio_encoder_cap: %d", index);
129    Vector<audio_encoder> encoders = sProfiles->getAudioEncoders();
130    int nSize = encoders.size();
131    if (index < 0 || index >= nSize) {
132        jniThrowException(env, "java/lang/IllegalArgumentException", "out of array boundary");
133        return NULL;
134    }
135
136    audio_encoder encoder = encoders[index];
137    int minBitRate = sProfiles->getAudioEncoderParamByName("enc.aud.bps.min", encoder);
138    int maxBitRate = sProfiles->getAudioEncoderParamByName("enc.aud.bps.max", encoder);
139    int minSampleRate = sProfiles->getAudioEncoderParamByName("enc.aud.hz.min", encoder);
140    int maxSampleRate = sProfiles->getAudioEncoderParamByName("enc.aud.hz.max", encoder);
141    int minChannels = sProfiles->getAudioEncoderParamByName("enc.aud.ch.min", encoder);
142    int maxChannels = sProfiles->getAudioEncoderParamByName("enc.aud.ch.max", encoder);
143
144    // Check on the values retrieved
145    if ((minBitRate == -1 || maxBitRate == -1) ||
146        (minSampleRate == -1 || maxSampleRate == -1) ||
147        (minChannels == -1 || maxChannels == -1)) {
148
149        jniThrowException(env, "java/lang/RuntimeException", "Error retrieving video encoder capability params");
150        return NULL;
151    }
152
153    jclass audioEncoderCapClazz = env->FindClass("android/media/EncoderCapabilities$AudioEncoderCap");
154    jmethodID audioEncoderCapConstructorMethodID = env->GetMethodID(audioEncoderCapClazz, "<init>", "(IIIIIII)V");
155    jobject cap = env->NewObject(audioEncoderCapClazz,
156                                 audioEncoderCapConstructorMethodID,
157                                 static_cast<int>(encoder),
158                                 minBitRate, maxBitRate,
159                                 minSampleRate, maxSampleRate,
160                                 minChannels, maxChannels);
161    return cap;
162}
163
164static jobject
165android_media_MediaProfiles_native_get_camcorder_profile(JNIEnv *env, jobject thiz, jint quality)
166{
167    LOGV("native_get_camcorder_profile: %d", quality);
168    if (quality != CAMCORDER_QUALITY_HIGH && quality != CAMCORDER_QUALITY_LOW) {
169        jniThrowException(env, "java/lang/RuntimeException", "Unknown camcorder profile quality");
170        return NULL;
171    }
172
173    camcorder_quality q = static_cast<camcorder_quality>(quality);
174    int fileFormat       = sProfiles->getCamcorderProfileParamByName("file.format", q);
175    int videoCodec       = sProfiles->getCamcorderProfileParamByName("vid.codec",   q);
176    int videoBitRate     = sProfiles->getCamcorderProfileParamByName("vid.bps",     q);
177    int videoFrameRate   = sProfiles->getCamcorderProfileParamByName("vid.fps",     q);
178    int videoFrameWidth  = sProfiles->getCamcorderProfileParamByName("vid.width",   q);
179    int videoFrameHeight = sProfiles->getCamcorderProfileParamByName("vid.height",  q);
180    int audioCodec       = sProfiles->getCamcorderProfileParamByName("aud.codec",   q);
181    int audioBitRate     = sProfiles->getCamcorderProfileParamByName("aud.bps",     q);
182    int audioSampleRate  = sProfiles->getCamcorderProfileParamByName("aud.hz",      q);
183    int audioChannels    = sProfiles->getCamcorderProfileParamByName("aud.ch",      q);
184
185    // Check on the values retrieved
186    if (fileFormat == -1 || videoCodec == -1 || audioCodec == -1 ||
187        videoBitRate == -1 || videoFrameRate == -1 || videoFrameWidth == -1 || videoFrameHeight == -1 ||
188        audioBitRate == -1 || audioSampleRate == -1 || audioChannels == -1) {
189
190        jniThrowException(env, "java/lang/RuntimeException", "Error retrieving camcorder profile params");
191        return NULL;
192    }
193
194    jclass camcorderProfileClazz = env->FindClass("android/media/CamcorderProfile");
195    jmethodID camcorderProfileConstructorMethodID = env->GetMethodID(camcorderProfileClazz, "<init>", "(IIIIIIIIIII)V");
196    return env->NewObject(camcorderProfileClazz,
197                          camcorderProfileConstructorMethodID,
198                          quality,
199                          fileFormat,
200                          videoCodec,
201                          videoBitRate,
202                          videoFrameRate,
203                          videoFrameWidth,
204                          videoFrameHeight,
205                          audioCodec,
206                          audioBitRate,
207                          audioSampleRate,
208                          audioChannels);
209}
210
211static jint
212android_media_MediaProfiles_native_get_num_video_decoders(JNIEnv *env, jobject thiz)
213{
214    LOGV("native_get_num_video_decoders");
215    return sProfiles->getVideoDecoders().size();
216}
217
218static jint
219android_media_MediaProfiles_native_get_video_decoder_type(JNIEnv *env, jobject thiz, jint index)
220{
221    LOGV("native_get_video_decoder_type: %d", index);
222    Vector<video_decoder> decoders = sProfiles->getVideoDecoders();
223    int nSize = decoders.size();
224    if (index < 0 || index >= nSize) {
225        jniThrowException(env, "java/lang/IllegalArgumentException", "out of array boundary");
226        return -1;
227    }
228
229    return static_cast<jint>(decoders[index]);
230}
231
232static jint
233android_media_MediaProfiles_native_get_num_audio_decoders(JNIEnv *env, jobject thiz)
234{
235    LOGV("native_get_num_audio_decoders");
236    return sProfiles->getAudioDecoders().size();
237}
238
239static jint
240android_media_MediaProfiles_native_get_audio_decoder_type(JNIEnv *env, jobject thiz, jint index)
241{
242    LOGV("native_get_audio_decoder_type: %d", index);
243    Vector<audio_decoder> decoders = sProfiles->getAudioDecoders();
244    int nSize = decoders.size();
245    if (index < 0 || index >= nSize) {
246        jniThrowException(env, "java/lang/IllegalArgumentException", "out of array boundary");
247        return -1;
248    }
249
250    return static_cast<jint>(decoders[index]);
251}
252
253static JNINativeMethod gMethodsForEncoderCapabilitiesClass[] = {
254    {"native_init",                            "()V",                    (void *)android_media_MediaProfiles_native_init},
255    {"native_get_num_file_formats",            "()I",                    (void *)android_media_MediaProfiles_native_get_num_file_formats},
256    {"native_get_file_format",                 "(I)I",                   (void *)android_media_MediaProfiles_native_get_file_format},
257    {"native_get_num_video_encoders",          "()I",                    (void *)android_media_MediaProfiles_native_get_num_video_encoders},
258    {"native_get_num_audio_encoders",          "()I",                    (void *)android_media_MediaProfiles_native_get_num_audio_encoders},
259
260    {"native_get_video_encoder_cap",           "(I)Landroid/media/EncoderCapabilities$VideoEncoderCap;",
261                                                                         (void *)android_media_MediaProfiles_native_get_video_encoder_cap},
262
263    {"native_get_audio_encoder_cap",           "(I)Landroid/media/EncoderCapabilities$AudioEncoderCap;",
264                                                                         (void *)android_media_MediaProfiles_native_get_audio_encoder_cap},
265};
266
267static JNINativeMethod gMethodsForCamcorderProfileClass[] = {
268    {"native_init",                            "()V",                    (void *)android_media_MediaProfiles_native_init},
269    {"native_get_camcorder_profile",           "(I)Landroid/media/CamcorderProfile;",
270                                                                         (void *)android_media_MediaProfiles_native_get_camcorder_profile},
271};
272
273static JNINativeMethod gMethodsForDecoderCapabilitiesClass[] = {
274    {"native_init",                            "()V",                    (void *)android_media_MediaProfiles_native_init},
275    {"native_get_num_video_decoders",          "()I",                    (void *)android_media_MediaProfiles_native_get_num_video_decoders},
276    {"native_get_num_audio_decoders",          "()I",                    (void *)android_media_MediaProfiles_native_get_num_audio_decoders},
277    {"native_get_video_decoder_type",          "(I)I",                   (void *)android_media_MediaProfiles_native_get_video_decoder_type},
278    {"native_get_audio_decoder_type",          "(I)I",                   (void *)android_media_MediaProfiles_native_get_audio_decoder_type},
279};
280
281static const char* const kEncoderCapabilitiesClassPathName = "android/media/EncoderCapabilities";
282static const char* const kDecoderCapabilitiesClassPathName = "android/media/DecoderCapabilities";
283static const char* const kCamcorderProfileClassPathName = "android/media/CamcorderProfile";
284
285// This function only registers the native methods, and is called from
286// JNI_OnLoad in android_media_MediaPlayer.cpp
287int register_android_media_MediaProfiles(JNIEnv *env)
288{
289    int ret1 = AndroidRuntime::registerNativeMethods(env,
290               kEncoderCapabilitiesClassPathName,
291               gMethodsForEncoderCapabilitiesClass,
292               NELEM(gMethodsForEncoderCapabilitiesClass));
293
294    int ret2 = AndroidRuntime::registerNativeMethods(env,
295               kCamcorderProfileClassPathName,
296               gMethodsForCamcorderProfileClass,
297               NELEM(gMethodsForCamcorderProfileClass));
298
299    int ret3 = AndroidRuntime::registerNativeMethods(env,
300               kDecoderCapabilitiesClassPathName,
301               gMethodsForDecoderCapabilitiesClass,
302               NELEM(gMethodsForDecoderCapabilitiesClass));
303
304    // Success if ret1 == 0 && ret2 == 0 && ret3 == 0
305    return (ret1 || ret2 || ret3);
306}
307