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1 /*
2  * Android MediaCodec Wrapper
3  *
4  * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include <jni.h>
24 
25 #include "libavutil/avassert.h"
26 #include "libavutil/mem.h"
27 #include "libavutil/avstring.h"
28 
29 #include "avcodec.h"
30 #include "ffjni.h"
31 #include "version.h"
32 #include "mediacodec_wrapper.h"
33 
34 struct JNIAMediaCodecListFields {
35 
36     jclass mediacodec_list_class;
37     jmethodID init_id;
38     jmethodID find_decoder_for_format_id;
39 
40     jmethodID get_codec_count_id;
41     jmethodID get_codec_info_at_id;
42 
43     jclass mediacodec_info_class;
44     jmethodID get_name_id;
45     jmethodID get_codec_capabilities_id;
46     jmethodID get_supported_types_id;
47     jmethodID is_encoder_id;
48 
49     jclass codec_capabilities_class;
50     jfieldID color_formats_id;
51     jfieldID profile_levels_id;
52 
53     jclass codec_profile_level_class;
54     jfieldID profile_id;
55     jfieldID level_id;
56 
57     jfieldID avc_profile_baseline_id;
58     jfieldID avc_profile_main_id;
59     jfieldID avc_profile_extended_id;
60     jfieldID avc_profile_high_id;
61     jfieldID avc_profile_high10_id;
62     jfieldID avc_profile_high422_id;
63     jfieldID avc_profile_high444_id;
64 
65     jfieldID hevc_profile_main_id;
66     jfieldID hevc_profile_main10_id;
67     jfieldID hevc_profile_main10_hdr10_id;
68 
69 };
70 
71 static const struct FFJniField jni_amediacodeclist_mapping[] = {
72     { "android/media/MediaCodecList", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecListFields, mediacodec_list_class), 1 },
73         { "android/media/MediaCodecList", "<init>", "(I)V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, init_id), 0 },
74         { "android/media/MediaCodecList", "findDecoderForFormat", "(Landroid/media/MediaFormat;)Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, find_decoder_for_format_id), 0 },
75 
76         { "android/media/MediaCodecList", "getCodecCount", "()I", FF_JNI_STATIC_METHOD, offsetof(struct JNIAMediaCodecListFields, get_codec_count_id), 1 },
77         { "android/media/MediaCodecList", "getCodecInfoAt", "(I)Landroid/media/MediaCodecInfo;", FF_JNI_STATIC_METHOD, offsetof(struct JNIAMediaCodecListFields, get_codec_info_at_id), 1 },
78 
79     { "android/media/MediaCodecInfo", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecListFields, mediacodec_info_class), 1 },
80         { "android/media/MediaCodecInfo", "getName", "()Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, get_name_id), 1 },
81         { "android/media/MediaCodecInfo", "getCapabilitiesForType", "(Ljava/lang/String;)Landroid/media/MediaCodecInfo$CodecCapabilities;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, get_codec_capabilities_id), 1 },
82         { "android/media/MediaCodecInfo", "getSupportedTypes", "()[Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, get_supported_types_id), 1 },
83         { "android/media/MediaCodecInfo", "isEncoder", "()Z", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, is_encoder_id), 1 },
84 
85     { "android/media/MediaCodecInfo$CodecCapabilities", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecListFields, codec_capabilities_class), 1 },
86         { "android/media/MediaCodecInfo$CodecCapabilities", "colorFormats", "[I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecListFields, color_formats_id), 1 },
87         { "android/media/MediaCodecInfo$CodecCapabilities", "profileLevels", "[Landroid/media/MediaCodecInfo$CodecProfileLevel;", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecListFields, profile_levels_id), 1 },
88 
89     { "android/media/MediaCodecInfo$CodecProfileLevel", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecListFields, codec_profile_level_class), 1 },
90         { "android/media/MediaCodecInfo$CodecProfileLevel", "profile", "I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecListFields, profile_id), 1 },
91         { "android/media/MediaCodecInfo$CodecProfileLevel", "level", "I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecListFields, level_id), 1 },
92 
93         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileBaseline", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_baseline_id), 1 },
94         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileMain", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_main_id), 1 },
95         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileExtended", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_extended_id), 1 },
96         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileHigh", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_high_id), 1 },
97         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileHigh10", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_high10_id), 1 },
98         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileHigh422", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_high422_id), 1 },
99         { "android/media/MediaCodecInfo$CodecProfileLevel", "AVCProfileHigh444", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, avc_profile_high444_id), 1 },
100 
101         { "android/media/MediaCodecInfo$CodecProfileLevel", "HEVCProfileMain", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, hevc_profile_main_id), 0 },
102         { "android/media/MediaCodecInfo$CodecProfileLevel", "HEVCProfileMain10", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, hevc_profile_main10_id), 0 },
103         { "android/media/MediaCodecInfo$CodecProfileLevel", "HEVCProfileMain10HDR10", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecListFields, hevc_profile_main10_hdr10_id), 0 },
104 
105     { NULL }
106 };
107 
108 struct JNIAMediaFormatFields {
109 
110     jclass mediaformat_class;
111 
112     jmethodID init_id;
113 
114     jmethodID contains_key_id;
115 
116     jmethodID get_integer_id;
117     jmethodID get_long_id;
118     jmethodID get_float_id;
119     jmethodID get_bytebuffer_id;
120     jmethodID get_string_id;
121 
122     jmethodID set_integer_id;
123     jmethodID set_long_id;
124     jmethodID set_float_id;
125     jmethodID set_bytebuffer_id;
126     jmethodID set_string_id;
127 
128     jmethodID to_string_id;
129 
130 };
131 
132 static const struct FFJniField jni_amediaformat_mapping[] = {
133     { "android/media/MediaFormat", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaFormatFields, mediaformat_class), 1 },
134 
135         { "android/media/MediaFormat", "<init>", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, init_id), 1 },
136 
137         { "android/media/MediaFormat", "containsKey", "(Ljava/lang/String;)Z", FF_JNI_METHOD,offsetof(struct JNIAMediaFormatFields, contains_key_id), 1 },
138 
139         { "android/media/MediaFormat", "getInteger", "(Ljava/lang/String;)I", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, get_integer_id), 1 },
140         { "android/media/MediaFormat", "getLong", "(Ljava/lang/String;)J", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, get_long_id), 1 },
141         { "android/media/MediaFormat", "getFloat", "(Ljava/lang/String;)F", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, get_float_id), 1 },
142         { "android/media/MediaFormat", "getByteBuffer", "(Ljava/lang/String;)Ljava/nio/ByteBuffer;", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, get_bytebuffer_id), 1 },
143         { "android/media/MediaFormat", "getString", "(Ljava/lang/String;)Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, get_string_id), 1 },
144 
145         { "android/media/MediaFormat", "setInteger", "(Ljava/lang/String;I)V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, set_integer_id), 1 },
146         { "android/media/MediaFormat", "setLong", "(Ljava/lang/String;J)V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, set_long_id), 1 },
147         { "android/media/MediaFormat", "setFloat", "(Ljava/lang/String;F)V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, set_float_id), 1 },
148         { "android/media/MediaFormat", "setByteBuffer", "(Ljava/lang/String;Ljava/nio/ByteBuffer;)V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, set_bytebuffer_id), 1 },
149         { "android/media/MediaFormat", "setString", "(Ljava/lang/String;Ljava/lang/String;)V", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, set_string_id), 1 },
150 
151         { "android/media/MediaFormat", "toString", "()Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaFormatFields, to_string_id), 1 },
152 
153     { NULL }
154 };
155 
156 static const AVClass amediaformat_class = {
157     .class_name = "amediaformat",
158     .item_name  = av_default_item_name,
159     .version    = LIBAVUTIL_VERSION_INT,
160 };
161 
162 struct FFAMediaFormat {
163 
164     const AVClass *class;
165     struct JNIAMediaFormatFields jfields;
166     jobject object;
167 };
168 
169 struct JNIAMediaCodecFields {
170 
171     jclass mediacodec_class;
172 
173     jfieldID info_try_again_later_id;
174     jfieldID info_output_buffers_changed_id;
175     jfieldID info_output_format_changed_id;
176 
177     jfieldID buffer_flag_codec_config_id;
178     jfieldID buffer_flag_end_of_stream_id;
179     jfieldID buffer_flag_key_frame_id;
180 
181     jfieldID configure_flag_encode_id;
182 
183     jmethodID create_by_codec_name_id;
184     jmethodID create_decoder_by_type_id;
185     jmethodID create_encoder_by_type_id;
186 
187     jmethodID get_name_id;
188 
189     jmethodID configure_id;
190     jmethodID start_id;
191     jmethodID flush_id;
192     jmethodID stop_id;
193     jmethodID release_id;
194 
195     jmethodID get_output_format_id;
196 
197     jmethodID dequeue_input_buffer_id;
198     jmethodID queue_input_buffer_id;
199     jmethodID get_input_buffer_id;
200     jmethodID get_input_buffers_id;
201 
202     jmethodID dequeue_output_buffer_id;
203     jmethodID get_output_buffer_id;
204     jmethodID get_output_buffers_id;
205     jmethodID release_output_buffer_id;
206     jmethodID release_output_buffer_at_time_id;
207 
208     jclass mediainfo_class;
209 
210     jmethodID init_id;
211 
212     jfieldID flags_id;
213     jfieldID offset_id;
214     jfieldID presentation_time_us_id;
215     jfieldID size_id;
216 
217 };
218 
219 static const struct FFJniField jni_amediacodec_mapping[] = {
220     { "android/media/MediaCodec", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecFields, mediacodec_class), 1 },
221 
222         { "android/media/MediaCodec", "INFO_TRY_AGAIN_LATER", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, info_try_again_later_id), 1 },
223         { "android/media/MediaCodec", "INFO_OUTPUT_BUFFERS_CHANGED", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, info_output_buffers_changed_id), 1 },
224         { "android/media/MediaCodec", "INFO_OUTPUT_FORMAT_CHANGED", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, info_output_format_changed_id), 1 },
225 
226         { "android/media/MediaCodec", "BUFFER_FLAG_CODEC_CONFIG", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, buffer_flag_codec_config_id), 1 },
227         { "android/media/MediaCodec", "BUFFER_FLAG_END_OF_STREAM", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, buffer_flag_end_of_stream_id), 1 },
228         { "android/media/MediaCodec", "BUFFER_FLAG_KEY_FRAME", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, buffer_flag_key_frame_id), 0 },
229 
230         { "android/media/MediaCodec", "CONFIGURE_FLAG_ENCODE", "I", FF_JNI_STATIC_FIELD, offsetof(struct JNIAMediaCodecFields, configure_flag_encode_id), 1 },
231 
232         { "android/media/MediaCodec", "createByCodecName", "(Ljava/lang/String;)Landroid/media/MediaCodec;", FF_JNI_STATIC_METHOD, offsetof(struct JNIAMediaCodecFields, create_by_codec_name_id), 1 },
233         { "android/media/MediaCodec", "createDecoderByType", "(Ljava/lang/String;)Landroid/media/MediaCodec;", FF_JNI_STATIC_METHOD, offsetof(struct JNIAMediaCodecFields, create_decoder_by_type_id), 1 },
234         { "android/media/MediaCodec", "createEncoderByType", "(Ljava/lang/String;)Landroid/media/MediaCodec;", FF_JNI_STATIC_METHOD, offsetof(struct JNIAMediaCodecFields, create_encoder_by_type_id), 1 },
235 
236         { "android/media/MediaCodec", "getName", "()Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_name_id), 1 },
237 
238         { "android/media/MediaCodec", "configure", "(Landroid/media/MediaFormat;Landroid/view/Surface;Landroid/media/MediaCrypto;I)V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, configure_id), 1 },
239         { "android/media/MediaCodec", "start", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, start_id), 1 },
240         { "android/media/MediaCodec", "flush", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, flush_id), 1 },
241         { "android/media/MediaCodec", "stop", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, stop_id), 1 },
242         { "android/media/MediaCodec", "release", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, release_id), 1 },
243 
244         { "android/media/MediaCodec", "getOutputFormat", "()Landroid/media/MediaFormat;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_output_format_id), 1 },
245 
246         { "android/media/MediaCodec", "dequeueInputBuffer", "(J)I", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, dequeue_input_buffer_id), 1 },
247         { "android/media/MediaCodec", "queueInputBuffer", "(IIIJI)V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, queue_input_buffer_id), 1 },
248         { "android/media/MediaCodec", "getInputBuffer", "(I)Ljava/nio/ByteBuffer;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_input_buffer_id), 0 },
249         { "android/media/MediaCodec", "getInputBuffers", "()[Ljava/nio/ByteBuffer;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_input_buffers_id), 1 },
250 
251         { "android/media/MediaCodec", "dequeueOutputBuffer", "(Landroid/media/MediaCodec$BufferInfo;J)I", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, dequeue_output_buffer_id), 1 },
252         { "android/media/MediaCodec", "getOutputBuffer", "(I)Ljava/nio/ByteBuffer;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_output_buffer_id), 0 },
253         { "android/media/MediaCodec", "getOutputBuffers", "()[Ljava/nio/ByteBuffer;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, get_output_buffers_id), 1 },
254         { "android/media/MediaCodec", "releaseOutputBuffer", "(IZ)V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, release_output_buffer_id), 1 },
255         { "android/media/MediaCodec", "releaseOutputBuffer", "(IJ)V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, release_output_buffer_at_time_id), 0 },
256 
257     { "android/media/MediaCodec$BufferInfo", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecFields, mediainfo_class), 1 },
258 
259         { "android/media/MediaCodec.BufferInfo", "<init>", "()V", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecFields, init_id), 1 },
260         { "android/media/MediaCodec.BufferInfo", "flags", "I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecFields, flags_id), 1 },
261         { "android/media/MediaCodec.BufferInfo", "offset", "I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecFields, offset_id), 1 },
262         { "android/media/MediaCodec.BufferInfo", "presentationTimeUs", "J", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecFields, presentation_time_us_id), 1 },
263         { "android/media/MediaCodec.BufferInfo", "size", "I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecFields, size_id), 1 },
264 
265     { NULL }
266 };
267 
268 static const AVClass amediacodec_class = {
269     .class_name = "amediacodec",
270     .item_name  = av_default_item_name,
271     .version    = LIBAVUTIL_VERSION_INT,
272 };
273 
274 struct FFAMediaCodec {
275 
276     const AVClass *class;
277 
278     struct JNIAMediaCodecFields jfields;
279 
280     jobject object;
281     jobject buffer_info;
282 
283     jobject input_buffers;
284     jobject output_buffers;
285 
286     int INFO_TRY_AGAIN_LATER;
287     int INFO_OUTPUT_BUFFERS_CHANGED;
288     int INFO_OUTPUT_FORMAT_CHANGED;
289 
290     int BUFFER_FLAG_CODEC_CONFIG;
291     int BUFFER_FLAG_END_OF_STREAM;
292     int BUFFER_FLAG_KEY_FRAME;
293 
294     int CONFIGURE_FLAG_ENCODE;
295 
296     int has_get_i_o_buffer;
297 };
298 
299 #define JNI_GET_ENV_OR_RETURN(env, log_ctx, ret) do {              \
300     (env) = ff_jni_get_env(log_ctx);                               \
301     if (!(env)) {                                                  \
302         return ret;                                                \
303     }                                                              \
304 } while (0)
305 
306 #define JNI_GET_ENV_OR_RETURN_VOID(env, log_ctx) do {              \
307     (env) = ff_jni_get_env(log_ctx);                               \
308     if (!(env)) {                                                  \
309         return;                                                    \
310     }                                                              \
311 } while (0)
312 
ff_AMediaCodecProfile_getProfileFromAVCodecContext(AVCodecContext * avctx)313 int ff_AMediaCodecProfile_getProfileFromAVCodecContext(AVCodecContext *avctx)
314 {
315     int ret = -1;
316 
317     JNIEnv *env = NULL;
318     struct JNIAMediaCodecListFields jfields = { 0 };
319     jfieldID field_id = 0;
320 
321     JNI_GET_ENV_OR_RETURN(env, avctx, -1);
322 
323     if (ff_jni_init_jfields(env, &jfields, jni_amediacodeclist_mapping, 0, avctx) < 0) {
324         goto done;
325     }
326 
327     if (avctx->codec_id == AV_CODEC_ID_H264) {
328         switch(avctx->profile) {
329         case FF_PROFILE_H264_BASELINE:
330         case FF_PROFILE_H264_CONSTRAINED_BASELINE:
331             field_id = jfields.avc_profile_baseline_id;
332             break;
333         case FF_PROFILE_H264_MAIN:
334             field_id = jfields.avc_profile_main_id;
335             break;
336         case FF_PROFILE_H264_EXTENDED:
337             field_id = jfields.avc_profile_extended_id;
338             break;
339         case FF_PROFILE_H264_HIGH:
340             field_id = jfields.avc_profile_high_id;
341             break;
342         case FF_PROFILE_H264_HIGH_10:
343         case FF_PROFILE_H264_HIGH_10_INTRA:
344             field_id = jfields.avc_profile_high10_id;
345             break;
346         case FF_PROFILE_H264_HIGH_422:
347         case FF_PROFILE_H264_HIGH_422_INTRA:
348             field_id = jfields.avc_profile_high422_id;
349             break;
350         case FF_PROFILE_H264_HIGH_444:
351         case FF_PROFILE_H264_HIGH_444_INTRA:
352         case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
353             field_id = jfields.avc_profile_high444_id;
354             break;
355         }
356     } else if (avctx->codec_id == AV_CODEC_ID_HEVC) {
357         switch (avctx->profile) {
358         case FF_PROFILE_HEVC_MAIN:
359         case FF_PROFILE_HEVC_MAIN_STILL_PICTURE:
360             field_id = jfields.hevc_profile_main_id;
361             break;
362         case FF_PROFILE_HEVC_MAIN_10:
363             field_id = jfields.hevc_profile_main10_id;
364             break;
365         }
366     }
367 
368         if (field_id) {
369             ret = (*env)->GetStaticIntField(env, jfields.codec_profile_level_class, field_id);
370             if (ff_jni_exception_check(env, 1, avctx) < 0) {
371                 ret = -1;
372                 goto done;
373             }
374         }
375 
376 done:
377     ff_jni_reset_jfields(env, &jfields, jni_amediacodeclist_mapping, 0, avctx);
378 
379     return ret;
380 }
381 
ff_AMediaCodecList_getCodecNameByType(const char * mime,int profile,int encoder,void * log_ctx)382 char *ff_AMediaCodecList_getCodecNameByType(const char *mime, int profile, int encoder, void *log_ctx)
383 {
384     int ret;
385     int i;
386     int codec_count;
387     int found_codec = 0;
388     char *name = NULL;
389     char *supported_type = NULL;
390 
391     JNIEnv *env = NULL;
392     struct JNIAMediaCodecListFields jfields = { 0 };
393     struct JNIAMediaFormatFields mediaformat_jfields = { 0 };
394 
395     jobject codec_name = NULL;
396 
397     jobject info = NULL;
398     jobject type = NULL;
399     jobjectArray types = NULL;
400 
401     jobject capabilities = NULL;
402     jobject profile_level = NULL;
403     jobjectArray profile_levels = NULL;
404 
405     JNI_GET_ENV_OR_RETURN(env, log_ctx, NULL);
406 
407     if ((ret = ff_jni_init_jfields(env, &jfields, jni_amediacodeclist_mapping, 0, log_ctx)) < 0) {
408         goto done;
409     }
410 
411     if ((ret = ff_jni_init_jfields(env, &mediaformat_jfields, jni_amediaformat_mapping, 0, log_ctx)) < 0) {
412         goto done;
413     }
414 
415     codec_count = (*env)->CallStaticIntMethod(env, jfields.mediacodec_list_class, jfields.get_codec_count_id);
416     if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
417         goto done;
418     }
419 
420     for(i = 0; i < codec_count; i++) {
421         int j;
422         int type_count;
423         int is_encoder;
424 
425         info = (*env)->CallStaticObjectMethod(env, jfields.mediacodec_list_class, jfields.get_codec_info_at_id, i);
426         if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
427             goto done;
428         }
429 
430         types = (*env)->CallObjectMethod(env, info, jfields.get_supported_types_id);
431         if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
432             goto done;
433         }
434 
435         is_encoder = (*env)->CallBooleanMethod(env, info, jfields.is_encoder_id);
436         if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
437             goto done;
438         }
439 
440         if (is_encoder != encoder) {
441             goto done_with_info;
442         }
443 
444         type_count = (*env)->GetArrayLength(env, types);
445         for (j = 0; j < type_count; j++) {
446             int k;
447             int profile_count;
448 
449             type = (*env)->GetObjectArrayElement(env, types, j);
450             if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
451                 goto done;
452             }
453 
454             supported_type = ff_jni_jstring_to_utf_chars(env, type, log_ctx);
455             if (!supported_type) {
456                 goto done;
457             }
458 
459             if (!av_strcasecmp(supported_type, mime)) {
460                 codec_name = (*env)->CallObjectMethod(env, info, jfields.get_name_id);
461                 if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
462                     goto done;
463                 }
464 
465                 name = ff_jni_jstring_to_utf_chars(env, codec_name, log_ctx);
466                 if (!name) {
467                     goto done;
468                 }
469 
470                 if (codec_name) {
471                     (*env)->DeleteLocalRef(env, codec_name);
472                     codec_name = NULL;
473                 }
474 
475                 /* Skip software decoders */
476                 if (
477                     strstr(name, "OMX.google") ||
478                     strstr(name, "OMX.ffmpeg") ||
479                     (strstr(name, "OMX.SEC") && strstr(name, ".sw.")) ||
480                     !strcmp(name, "OMX.qcom.video.decoder.hevcswvdec")) {
481                     av_freep(&name);
482                     goto done_with_type;
483                 }
484 
485                 capabilities = (*env)->CallObjectMethod(env, info, jfields.get_codec_capabilities_id, type);
486                 if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
487                     goto done;
488                 }
489 
490                 profile_levels = (*env)->GetObjectField(env, capabilities, jfields.profile_levels_id);
491                 if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
492                     goto done;
493                 }
494 
495                 profile_count = (*env)->GetArrayLength(env, profile_levels);
496                 if (!profile_count) {
497                     found_codec = 1;
498                 }
499                 for (k = 0; k < profile_count; k++) {
500                     int supported_profile = 0;
501 
502                     if (profile < 0) {
503                         found_codec = 1;
504                         break;
505                     }
506 
507                     profile_level = (*env)->GetObjectArrayElement(env, profile_levels, k);
508                     if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
509                         goto done;
510                     }
511 
512                     supported_profile = (*env)->GetIntField(env, profile_level, jfields.profile_id);
513                     if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
514                         goto done;
515                     }
516 
517                     found_codec = profile == supported_profile;
518 
519                     if (profile_level) {
520                         (*env)->DeleteLocalRef(env, profile_level);
521                         profile_level = NULL;
522                     }
523 
524                     if (found_codec) {
525                         break;
526                     }
527                 }
528             }
529 
530 done_with_type:
531             if (profile_levels) {
532                 (*env)->DeleteLocalRef(env, profile_levels);
533                 profile_levels = NULL;
534             }
535 
536             if (capabilities) {
537                 (*env)->DeleteLocalRef(env, capabilities);
538                 capabilities = NULL;
539             }
540 
541             if (type) {
542                 (*env)->DeleteLocalRef(env, type);
543                 type = NULL;
544             }
545 
546             av_freep(&supported_type);
547 
548             if (found_codec) {
549                 break;
550             }
551 
552             av_freep(&name);
553         }
554 
555 done_with_info:
556         if (info) {
557             (*env)->DeleteLocalRef(env, info);
558             info = NULL;
559         }
560 
561         if (types) {
562             (*env)->DeleteLocalRef(env, types);
563             types = NULL;
564         }
565 
566         if (found_codec) {
567             break;
568         }
569     }
570 
571 done:
572     if (codec_name) {
573         (*env)->DeleteLocalRef(env, codec_name);
574     }
575 
576     if (info) {
577         (*env)->DeleteLocalRef(env, info);
578     }
579 
580     if (type) {
581         (*env)->DeleteLocalRef(env, type);
582     }
583 
584     if (types) {
585         (*env)->DeleteLocalRef(env, types);
586     }
587 
588     if (capabilities) {
589         (*env)->DeleteLocalRef(env, capabilities);
590     }
591 
592     if (profile_level) {
593         (*env)->DeleteLocalRef(env, profile_level);
594     }
595 
596     if (profile_levels) {
597         (*env)->DeleteLocalRef(env, profile_levels);
598     }
599 
600     av_freep(&supported_type);
601 
602     ff_jni_reset_jfields(env, &jfields, jni_amediacodeclist_mapping, 0, log_ctx);
603     ff_jni_reset_jfields(env, &mediaformat_jfields, jni_amediaformat_mapping, 0, log_ctx);
604 
605     if (!found_codec) {
606         av_freep(&name);
607     }
608 
609     return name;
610 }
611 
ff_AMediaFormat_new(void)612 FFAMediaFormat *ff_AMediaFormat_new(void)
613 {
614     JNIEnv *env = NULL;
615     FFAMediaFormat *format = NULL;
616     jobject object = NULL;
617 
618     format = av_mallocz(sizeof(FFAMediaFormat));
619     if (!format) {
620         return NULL;
621     }
622     format->class = &amediaformat_class;
623 
624     env = ff_jni_get_env(format);
625     if (!env) {
626         av_freep(&format);
627         return NULL;
628     }
629 
630     if (ff_jni_init_jfields(env, &format->jfields, jni_amediaformat_mapping, 1, format) < 0) {
631         goto fail;
632     }
633 
634     object = (*env)->NewObject(env, format->jfields.mediaformat_class, format->jfields.init_id);
635     if (!object) {
636         goto fail;
637     }
638 
639     format->object = (*env)->NewGlobalRef(env, object);
640     if (!format->object) {
641         goto fail;
642     }
643 
644 fail:
645     if (object) {
646         (*env)->DeleteLocalRef(env, object);
647     }
648 
649     if (!format->object) {
650         ff_jni_reset_jfields(env, &format->jfields, jni_amediaformat_mapping, 1, format);
651         av_freep(&format);
652     }
653 
654     return format;
655 }
656 
ff_AMediaFormat_newFromObject(void * object)657 static FFAMediaFormat *ff_AMediaFormat_newFromObject(void *object)
658 {
659     JNIEnv *env = NULL;
660     FFAMediaFormat *format = NULL;
661 
662     format = av_mallocz(sizeof(FFAMediaFormat));
663     if (!format) {
664         return NULL;
665     }
666     format->class = &amediaformat_class;
667 
668     env = ff_jni_get_env(format);
669     if (!env) {
670         av_freep(&format);
671         return NULL;
672     }
673 
674     if (ff_jni_init_jfields(env, &format->jfields, jni_amediaformat_mapping, 1, format) < 0) {
675         goto fail;
676     }
677 
678     format->object = (*env)->NewGlobalRef(env, object);
679     if (!format->object) {
680         goto fail;
681     }
682 
683     return format;
684 fail:
685     ff_jni_reset_jfields(env, &format->jfields, jni_amediaformat_mapping, 1, format);
686 
687     av_freep(&format);
688 
689     return NULL;
690 }
691 
ff_AMediaFormat_delete(FFAMediaFormat * format)692 int ff_AMediaFormat_delete(FFAMediaFormat* format)
693 {
694     int ret = 0;
695 
696     JNIEnv *env = NULL;
697 
698     if (!format) {
699         return 0;
700     }
701 
702     JNI_GET_ENV_OR_RETURN(env, format, AVERROR_EXTERNAL);
703 
704     (*env)->DeleteGlobalRef(env, format->object);
705     format->object = NULL;
706 
707     ff_jni_reset_jfields(env, &format->jfields, jni_amediaformat_mapping, 1, format);
708 
709     av_freep(&format);
710 
711     return ret;
712 }
713 
ff_AMediaFormat_toString(FFAMediaFormat * format)714 char* ff_AMediaFormat_toString(FFAMediaFormat* format)
715 {
716     char *ret = NULL;
717 
718     JNIEnv *env = NULL;
719     jstring description = NULL;
720 
721     av_assert0(format != NULL);
722 
723     JNI_GET_ENV_OR_RETURN(env, format, NULL);
724 
725     description = (*env)->CallObjectMethod(env, format->object, format->jfields.to_string_id);
726     if (ff_jni_exception_check(env, 1, NULL) < 0) {
727         goto fail;
728     }
729 
730     ret = ff_jni_jstring_to_utf_chars(env, description, format);
731 fail:
732     if (description) {
733         (*env)->DeleteLocalRef(env, description);
734     }
735 
736     return ret;
737 }
738 
ff_AMediaFormat_getInt32(FFAMediaFormat * format,const char * name,int32_t * out)739 int ff_AMediaFormat_getInt32(FFAMediaFormat* format, const char *name, int32_t *out)
740 {
741     int ret = 1;
742 
743     JNIEnv *env = NULL;
744     jstring key = NULL;
745     jboolean contains_key;
746 
747     av_assert0(format != NULL);
748 
749     JNI_GET_ENV_OR_RETURN(env, format, 0);
750 
751     key = ff_jni_utf_chars_to_jstring(env, name, format);
752     if (!key) {
753         ret = 0;
754         goto fail;
755     }
756 
757     contains_key = (*env)->CallBooleanMethod(env, format->object, format->jfields.contains_key_id, key);
758     if (!contains_key || (ret = ff_jni_exception_check(env, 1, format)) < 0) {
759         ret = 0;
760         goto fail;
761     }
762 
763     *out = (*env)->CallIntMethod(env, format->object, format->jfields.get_integer_id, key);
764     if ((ret = ff_jni_exception_check(env, 1, format)) < 0) {
765         ret = 0;
766         goto fail;
767     }
768 
769     ret = 1;
770 fail:
771     if (key) {
772         (*env)->DeleteLocalRef(env, key);
773     }
774 
775     return ret;
776 }
777 
ff_AMediaFormat_getInt64(FFAMediaFormat * format,const char * name,int64_t * out)778 int ff_AMediaFormat_getInt64(FFAMediaFormat* format, const char *name, int64_t *out)
779 {
780     int ret = 1;
781 
782     JNIEnv *env = NULL;
783     jstring key = NULL;
784     jboolean contains_key;
785 
786     av_assert0(format != NULL);
787 
788     JNI_GET_ENV_OR_RETURN(env, format, 0);
789 
790     key = ff_jni_utf_chars_to_jstring(env, name, format);
791     if (!key) {
792         ret = 0;
793         goto fail;
794     }
795 
796     contains_key = (*env)->CallBooleanMethod(env, format->object, format->jfields.contains_key_id, key);
797     if (!contains_key || (ret = ff_jni_exception_check(env, 1, format)) < 0) {
798         ret = 0;
799         goto fail;
800     }
801 
802     *out = (*env)->CallLongMethod(env, format->object, format->jfields.get_long_id, key);
803     if ((ret = ff_jni_exception_check(env, 1, format)) < 0) {
804         ret = 0;
805         goto fail;
806     }
807 
808     ret = 1;
809 fail:
810     if (key) {
811         (*env)->DeleteLocalRef(env, key);
812     }
813 
814     return ret;
815 }
816 
ff_AMediaFormat_getFloat(FFAMediaFormat * format,const char * name,float * out)817 int ff_AMediaFormat_getFloat(FFAMediaFormat* format, const char *name, float *out)
818 {
819     int ret = 1;
820 
821     JNIEnv *env = NULL;
822     jstring key = NULL;
823     jboolean contains_key;
824 
825     av_assert0(format != NULL);
826 
827     JNI_GET_ENV_OR_RETURN(env, format, 0);
828 
829     key = ff_jni_utf_chars_to_jstring(env, name, format);
830     if (!key) {
831         ret = 0;
832         goto fail;
833     }
834 
835     contains_key = (*env)->CallBooleanMethod(env, format->object, format->jfields.contains_key_id, key);
836     if (!contains_key || (ret = ff_jni_exception_check(env, 1, format)) < 0) {
837         ret = 0;
838         goto fail;
839     }
840 
841     *out = (*env)->CallFloatMethod(env, format->object, format->jfields.get_float_id, key);
842     if ((ret = ff_jni_exception_check(env, 1, format)) < 0) {
843         ret = 0;
844         goto fail;
845     }
846 
847     ret = 1;
848 fail:
849     if (key) {
850         (*env)->DeleteLocalRef(env, key);
851     }
852 
853     return ret;
854 }
855 
ff_AMediaFormat_getBuffer(FFAMediaFormat * format,const char * name,void ** data,size_t * size)856 int ff_AMediaFormat_getBuffer(FFAMediaFormat* format, const char *name, void** data, size_t *size)
857 {
858     int ret = 1;
859 
860     JNIEnv *env = NULL;
861     jstring key = NULL;
862     jboolean contains_key;
863     jobject result = NULL;
864 
865     av_assert0(format != NULL);
866 
867     JNI_GET_ENV_OR_RETURN(env, format, 0);
868 
869     key = ff_jni_utf_chars_to_jstring(env, name, format);
870     if (!key) {
871         ret = 0;
872         goto fail;
873     }
874 
875     contains_key = (*env)->CallBooleanMethod(env, format->object, format->jfields.contains_key_id, key);
876     if (!contains_key || (ret = ff_jni_exception_check(env, 1, format)) < 0) {
877         ret = 0;
878         goto fail;
879     }
880 
881     result = (*env)->CallObjectMethod(env, format->object, format->jfields.get_bytebuffer_id, key);
882     if ((ret = ff_jni_exception_check(env, 1, format)) < 0) {
883         ret = 0;
884         goto fail;
885     }
886 
887     *data = (*env)->GetDirectBufferAddress(env, result);
888     *size = (*env)->GetDirectBufferCapacity(env, result);
889 
890     if (*data && *size) {
891         void *src = *data;
892         *data = av_malloc(*size);
893         if (!*data) {
894             ret = 0;
895             goto fail;
896         }
897 
898         memcpy(*data, src, *size);
899     }
900 
901     ret = 1;
902 fail:
903     if (key) {
904         (*env)->DeleteLocalRef(env, key);
905     }
906 
907     if (result) {
908         (*env)->DeleteLocalRef(env, result);
909     }
910 
911     return ret;
912 }
913 
ff_AMediaFormat_getString(FFAMediaFormat * format,const char * name,const char ** out)914 int ff_AMediaFormat_getString(FFAMediaFormat* format, const char *name, const char **out)
915 {
916     int ret = 1;
917 
918     JNIEnv *env = NULL;
919     jstring key = NULL;
920     jboolean contains_key;
921     jstring result = NULL;
922 
923     av_assert0(format != NULL);
924 
925     JNI_GET_ENV_OR_RETURN(env, format, 0);
926 
927     key = ff_jni_utf_chars_to_jstring(env, name, format);
928     if (!key) {
929         ret = 0;
930         goto fail;
931     }
932 
933     contains_key = (*env)->CallBooleanMethod(env, format->object, format->jfields.contains_key_id, key);
934     if (!contains_key || (ret = ff_jni_exception_check(env, 1, format)) < 0) {
935         ret = 0;
936         goto fail;
937     }
938 
939     result = (*env)->CallObjectMethod(env, format->object, format->jfields.get_string_id, key);
940     if ((ret = ff_jni_exception_check(env, 1, format)) < 0) {
941         ret = 0;
942         goto fail;
943     }
944 
945     *out = ff_jni_jstring_to_utf_chars(env, result, format);
946     if (!*out) {
947         ret = 0;
948         goto fail;
949     }
950 
951     ret = 1;
952 fail:
953     if (key) {
954         (*env)->DeleteLocalRef(env, key);
955     }
956 
957     if (result) {
958         (*env)->DeleteLocalRef(env, result);
959     }
960 
961     return ret;
962 }
963 
ff_AMediaFormat_setInt32(FFAMediaFormat * format,const char * name,int32_t value)964 void ff_AMediaFormat_setInt32(FFAMediaFormat* format, const char* name, int32_t value)
965 {
966     JNIEnv *env = NULL;
967     jstring key = NULL;
968 
969     av_assert0(format != NULL);
970 
971     JNI_GET_ENV_OR_RETURN_VOID(env, format);
972 
973     key = ff_jni_utf_chars_to_jstring(env, name, format);
974     if (!key) {
975         goto fail;
976     }
977 
978     (*env)->CallVoidMethod(env, format->object, format->jfields.set_integer_id, key, value);
979     if (ff_jni_exception_check(env, 1, format) < 0) {
980         goto fail;
981     }
982 
983 fail:
984     if (key) {
985         (*env)->DeleteLocalRef(env, key);
986     }
987 }
988 
ff_AMediaFormat_setInt64(FFAMediaFormat * format,const char * name,int64_t value)989 void ff_AMediaFormat_setInt64(FFAMediaFormat* format, const char* name, int64_t value)
990 {
991     JNIEnv *env = NULL;
992     jstring key = NULL;
993 
994     av_assert0(format != NULL);
995 
996     JNI_GET_ENV_OR_RETURN_VOID(env, format);
997 
998     key = ff_jni_utf_chars_to_jstring(env, name, format);
999     if (!key) {
1000         goto fail;
1001     }
1002 
1003     (*env)->CallVoidMethod(env, format->object, format->jfields.set_long_id, key, value);
1004     if (ff_jni_exception_check(env, 1, format) < 0) {
1005         goto fail;
1006     }
1007 
1008 fail:
1009     if (key) {
1010         (*env)->DeleteLocalRef(env, key);
1011     }
1012 }
1013 
ff_AMediaFormat_setFloat(FFAMediaFormat * format,const char * name,float value)1014 void ff_AMediaFormat_setFloat(FFAMediaFormat* format, const char* name, float value)
1015 {
1016     JNIEnv *env = NULL;
1017     jstring key = NULL;
1018 
1019     av_assert0(format != NULL);
1020 
1021     JNI_GET_ENV_OR_RETURN_VOID(env, format);
1022 
1023     key = ff_jni_utf_chars_to_jstring(env, name, format);
1024     if (!key) {
1025         goto fail;
1026     }
1027 
1028     (*env)->CallVoidMethod(env, format->object, format->jfields.set_float_id, key, value);
1029     if (ff_jni_exception_check(env, 1, format) < 0) {
1030         goto fail;
1031     }
1032 
1033 fail:
1034     if (key) {
1035         (*env)->DeleteLocalRef(env, key);
1036     }
1037 }
1038 
ff_AMediaFormat_setString(FFAMediaFormat * format,const char * name,const char * value)1039 void ff_AMediaFormat_setString(FFAMediaFormat* format, const char* name, const char* value)
1040 {
1041     JNIEnv *env = NULL;
1042     jstring key = NULL;
1043     jstring string = NULL;
1044 
1045     av_assert0(format != NULL);
1046 
1047     JNI_GET_ENV_OR_RETURN_VOID(env, format);
1048 
1049     key = ff_jni_utf_chars_to_jstring(env, name, format);
1050     if (!key) {
1051         goto fail;
1052     }
1053 
1054     string = ff_jni_utf_chars_to_jstring(env, value, format);
1055     if (!string) {
1056         goto fail;
1057     }
1058 
1059     (*env)->CallVoidMethod(env, format->object, format->jfields.set_string_id, key, string);
1060     if (ff_jni_exception_check(env, 1, format) < 0) {
1061         goto fail;
1062     }
1063 
1064 fail:
1065     if (key) {
1066         (*env)->DeleteLocalRef(env, key);
1067     }
1068 
1069     if (string) {
1070         (*env)->DeleteLocalRef(env, string);
1071     }
1072 }
1073 
ff_AMediaFormat_setBuffer(FFAMediaFormat * format,const char * name,void * data,size_t size)1074 void ff_AMediaFormat_setBuffer(FFAMediaFormat* format, const char* name, void* data, size_t size)
1075 {
1076     JNIEnv *env = NULL;
1077     jstring key = NULL;
1078     jobject buffer = NULL;
1079     void *buffer_data = NULL;
1080 
1081     av_assert0(format != NULL);
1082 
1083     JNI_GET_ENV_OR_RETURN_VOID(env, format);
1084 
1085     key = ff_jni_utf_chars_to_jstring(env, name, format);
1086     if (!key) {
1087         goto fail;
1088     }
1089 
1090     if (!data || !size) {
1091         goto fail;
1092     }
1093 
1094     buffer_data = av_malloc(size);
1095     if (!buffer_data) {
1096         goto fail;
1097     }
1098 
1099     memcpy(buffer_data, data, size);
1100 
1101     buffer = (*env)->NewDirectByteBuffer(env, buffer_data, size);
1102     if (!buffer) {
1103         goto fail;
1104     }
1105 
1106     (*env)->CallVoidMethod(env, format->object, format->jfields.set_bytebuffer_id, key, buffer);
1107     if (ff_jni_exception_check(env, 1, format) < 0) {
1108         goto fail;
1109     }
1110 
1111 fail:
1112     if (key) {
1113         (*env)->DeleteLocalRef(env, key);
1114     }
1115 
1116     if (buffer) {
1117         (*env)->DeleteLocalRef(env, buffer);
1118     }
1119 }
1120 
codec_init_static_fields(FFAMediaCodec * codec)1121 static int codec_init_static_fields(FFAMediaCodec *codec)
1122 {
1123     int ret = 0;
1124     JNIEnv *env = NULL;
1125 
1126     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1127 
1128     codec->INFO_TRY_AGAIN_LATER = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.info_try_again_later_id);
1129     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1130         goto fail;
1131     }
1132 
1133     codec->BUFFER_FLAG_CODEC_CONFIG = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.buffer_flag_codec_config_id);
1134     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1135         goto fail;
1136     }
1137 
1138     codec->BUFFER_FLAG_END_OF_STREAM = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.buffer_flag_end_of_stream_id);
1139     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1140         goto fail;
1141     }
1142 
1143     if (codec->jfields.buffer_flag_key_frame_id) {
1144         codec->BUFFER_FLAG_KEY_FRAME = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.buffer_flag_key_frame_id);
1145         if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1146             goto fail;
1147         }
1148     }
1149 
1150     codec->CONFIGURE_FLAG_ENCODE = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.configure_flag_encode_id);
1151     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1152         goto fail;
1153     }
1154 
1155     codec->INFO_TRY_AGAIN_LATER = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.info_try_again_later_id);
1156     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1157         goto fail;
1158     }
1159 
1160     codec->INFO_OUTPUT_BUFFERS_CHANGED = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.info_output_buffers_changed_id);
1161     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1162         goto fail;
1163     }
1164 
1165     codec->INFO_OUTPUT_FORMAT_CHANGED = (*env)->GetStaticIntField(env, codec->jfields.mediacodec_class, codec->jfields.info_output_format_changed_id);
1166     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1167         goto fail;
1168     }
1169 
1170 fail:
1171 
1172     return ret;
1173 }
1174 
1175 #define CREATE_CODEC_BY_NAME   0
1176 #define CREATE_DECODER_BY_TYPE 1
1177 #define CREATE_ENCODER_BY_TYPE 2
1178 
codec_create(int method,const char * arg)1179 static inline FFAMediaCodec *codec_create(int method, const char *arg)
1180 {
1181     int ret = -1;
1182     JNIEnv *env = NULL;
1183     FFAMediaCodec *codec = NULL;
1184     jstring jarg = NULL;
1185     jobject object = NULL;
1186     jobject buffer_info = NULL;
1187     jmethodID create_id = NULL;
1188 
1189     codec = av_mallocz(sizeof(FFAMediaCodec));
1190     if (!codec) {
1191         return NULL;
1192     }
1193     codec->class = &amediacodec_class;
1194 
1195     env = ff_jni_get_env(codec);
1196     if (!env) {
1197         av_freep(&codec);
1198         return NULL;
1199     }
1200 
1201     if (ff_jni_init_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec) < 0) {
1202         goto fail;
1203     }
1204 
1205     jarg = ff_jni_utf_chars_to_jstring(env, arg, codec);
1206     if (!jarg) {
1207         goto fail;
1208     }
1209 
1210     switch (method) {
1211     case CREATE_CODEC_BY_NAME:   create_id = codec->jfields.create_by_codec_name_id;   break;
1212     case CREATE_DECODER_BY_TYPE: create_id = codec->jfields.create_decoder_by_type_id; break;
1213     case CREATE_ENCODER_BY_TYPE: create_id = codec->jfields.create_encoder_by_type_id; break;
1214     default:
1215         av_assert0(0);
1216     }
1217 
1218     object = (*env)->CallStaticObjectMethod(env,
1219                                             codec->jfields.mediacodec_class,
1220                                             create_id,
1221                                             jarg);
1222     if (ff_jni_exception_check(env, 1, codec) < 0) {
1223         goto fail;
1224     }
1225 
1226     codec->object = (*env)->NewGlobalRef(env, object);
1227     if (!codec->object) {
1228         goto fail;
1229     }
1230 
1231     if (codec_init_static_fields(codec) < 0) {
1232         goto fail;
1233     }
1234 
1235     if (codec->jfields.get_input_buffer_id && codec->jfields.get_output_buffer_id) {
1236         codec->has_get_i_o_buffer = 1;
1237     }
1238 
1239     buffer_info = (*env)->NewObject(env, codec->jfields.mediainfo_class, codec->jfields.init_id);
1240     if (ff_jni_exception_check(env, 1, codec) < 0) {
1241         goto fail;
1242     }
1243 
1244     codec->buffer_info = (*env)->NewGlobalRef(env, buffer_info);
1245     if (!codec->buffer_info) {
1246         goto fail;
1247     }
1248 
1249     ret = 0;
1250 fail:
1251     if (jarg) {
1252         (*env)->DeleteLocalRef(env, jarg);
1253     }
1254 
1255     if (object) {
1256         (*env)->DeleteLocalRef(env, object);
1257     }
1258 
1259     if (buffer_info) {
1260         (*env)->DeleteLocalRef(env, buffer_info);
1261     }
1262 
1263     if (ret < 0) {
1264         if (codec->object) {
1265             (*env)->DeleteGlobalRef(env, codec->object);
1266         }
1267 
1268         if (codec->buffer_info) {
1269             (*env)->DeleteGlobalRef(env, codec->buffer_info);
1270         }
1271 
1272         ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);
1273         av_freep(&codec);
1274     }
1275 
1276     return codec;
1277 }
1278 
1279 #define DECLARE_FF_AMEDIACODEC_CREATE_FUNC(name, method) \
1280 FFAMediaCodec *ff_AMediaCodec_##name(const char *arg)    \
1281 {                                                        \
1282     return codec_create(method, arg);                    \
1283 }                                                        \
1284 
DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createCodecByName,CREATE_CODEC_BY_NAME)1285 DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createCodecByName,   CREATE_CODEC_BY_NAME)
1286 DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createDecoderByType, CREATE_DECODER_BY_TYPE)
1287 DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createEncoderByType, CREATE_ENCODER_BY_TYPE)
1288 
1289 int ff_AMediaCodec_delete(FFAMediaCodec* codec)
1290 {
1291     int ret = 0;
1292 
1293     JNIEnv *env = NULL;
1294 
1295     if (!codec) {
1296         return 0;
1297     }
1298 
1299     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1300 
1301     (*env)->CallVoidMethod(env, codec->object, codec->jfields.release_id);
1302     if (ff_jni_exception_check(env, 1, codec) < 0) {
1303         ret = AVERROR_EXTERNAL;
1304     }
1305 
1306     (*env)->DeleteGlobalRef(env, codec->input_buffers);
1307     codec->input_buffers = NULL;
1308 
1309     (*env)->DeleteGlobalRef(env, codec->output_buffers);
1310     codec->output_buffers = NULL;
1311 
1312     (*env)->DeleteGlobalRef(env, codec->object);
1313     codec->object = NULL;
1314 
1315     (*env)->DeleteGlobalRef(env, codec->buffer_info);
1316     codec->buffer_info = NULL;
1317 
1318     ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);
1319 
1320     av_freep(&codec);
1321 
1322     return ret;
1323 }
1324 
ff_AMediaCodec_getName(FFAMediaCodec * codec)1325 char *ff_AMediaCodec_getName(FFAMediaCodec *codec)
1326 {
1327     char *ret = NULL;
1328     JNIEnv *env = NULL;
1329     jobject *name = NULL;
1330 
1331     JNI_GET_ENV_OR_RETURN(env, codec, NULL);
1332 
1333     name = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_name_id);
1334     if (ff_jni_exception_check(env, 1, codec) < 0) {
1335         goto fail;
1336     }
1337 
1338     ret = ff_jni_jstring_to_utf_chars(env, name, codec);
1339 
1340 fail:
1341     if (name) {
1342         (*env)->DeleteLocalRef(env, name);
1343     }
1344 
1345     return ret;
1346 }
1347 
ff_AMediaCodec_configure(FFAMediaCodec * codec,const FFAMediaFormat * format,void * surface,void * crypto,uint32_t flags)1348 int ff_AMediaCodec_configure(FFAMediaCodec* codec, const FFAMediaFormat* format, void* surface, void *crypto, uint32_t flags)
1349 {
1350     int ret = 0;
1351     JNIEnv *env = NULL;
1352 
1353     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1354 
1355     (*env)->CallVoidMethod(env, codec->object, codec->jfields.configure_id, format->object, surface, NULL, flags);
1356     if (ff_jni_exception_check(env, 1, codec) < 0) {
1357         ret = AVERROR_EXTERNAL;
1358         goto fail;
1359     }
1360 
1361 fail:
1362     return ret;
1363 }
1364 
ff_AMediaCodec_start(FFAMediaCodec * codec)1365 int ff_AMediaCodec_start(FFAMediaCodec* codec)
1366 {
1367     int ret = 0;
1368     JNIEnv *env = NULL;
1369 
1370     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1371 
1372     (*env)->CallVoidMethod(env, codec->object, codec->jfields.start_id);
1373     if (ff_jni_exception_check(env, 1, codec) < 0) {
1374         ret = AVERROR_EXTERNAL;
1375         goto fail;
1376     }
1377 
1378 fail:
1379     return ret;
1380 }
1381 
ff_AMediaCodec_stop(FFAMediaCodec * codec)1382 int ff_AMediaCodec_stop(FFAMediaCodec* codec)
1383 {
1384     int ret = 0;
1385     JNIEnv *env = NULL;
1386 
1387     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1388 
1389     (*env)->CallVoidMethod(env, codec->object, codec->jfields.stop_id);
1390     if (ff_jni_exception_check(env, 1, codec) < 0) {
1391         ret = AVERROR_EXTERNAL;
1392         goto fail;
1393     }
1394 
1395 fail:
1396     return ret;
1397 }
1398 
ff_AMediaCodec_flush(FFAMediaCodec * codec)1399 int ff_AMediaCodec_flush(FFAMediaCodec* codec)
1400 {
1401     int ret = 0;
1402     JNIEnv *env = NULL;
1403 
1404     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1405 
1406     (*env)->CallVoidMethod(env, codec->object, codec->jfields.flush_id);
1407     if (ff_jni_exception_check(env, 1, codec) < 0) {
1408         ret = AVERROR_EXTERNAL;
1409         goto fail;
1410     }
1411 
1412 fail:
1413     return ret;
1414 }
1415 
ff_AMediaCodec_releaseOutputBuffer(FFAMediaCodec * codec,size_t idx,int render)1416 int ff_AMediaCodec_releaseOutputBuffer(FFAMediaCodec* codec, size_t idx, int render)
1417 {
1418     int ret = 0;
1419     JNIEnv *env = NULL;
1420 
1421     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1422 
1423     (*env)->CallVoidMethod(env, codec->object, codec->jfields.release_output_buffer_id, (jint)idx, (jboolean)render);
1424     if (ff_jni_exception_check(env, 1, codec) < 0) {
1425         ret = AVERROR_EXTERNAL;
1426         goto fail;
1427     }
1428 
1429 fail:
1430     return ret;
1431 }
1432 
ff_AMediaCodec_releaseOutputBufferAtTime(FFAMediaCodec * codec,size_t idx,int64_t timestampNs)1433 int ff_AMediaCodec_releaseOutputBufferAtTime(FFAMediaCodec *codec, size_t idx, int64_t timestampNs)
1434 {
1435     int ret = 0;
1436     JNIEnv *env = NULL;
1437 
1438     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1439 
1440     (*env)->CallVoidMethod(env, codec->object, codec->jfields.release_output_buffer_at_time_id, (jint)idx, (jlong)timestampNs);
1441     if (ff_jni_exception_check(env, 1, codec) < 0) {
1442         ret = AVERROR_EXTERNAL;
1443         goto fail;
1444     }
1445 
1446 fail:
1447     return ret;
1448 }
1449 
ff_AMediaCodec_dequeueInputBuffer(FFAMediaCodec * codec,int64_t timeoutUs)1450 ssize_t ff_AMediaCodec_dequeueInputBuffer(FFAMediaCodec* codec, int64_t timeoutUs)
1451 {
1452     int ret = 0;
1453     JNIEnv *env = NULL;
1454 
1455     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1456 
1457     ret = (*env)->CallIntMethod(env, codec->object, codec->jfields.dequeue_input_buffer_id, timeoutUs);
1458     if (ff_jni_exception_check(env, 1, codec) < 0) {
1459         ret = AVERROR_EXTERNAL;
1460         goto fail;
1461     }
1462 
1463 fail:
1464     return ret;
1465 }
1466 
ff_AMediaCodec_queueInputBuffer(FFAMediaCodec * codec,size_t idx,off_t offset,size_t size,uint64_t time,uint32_t flags)1467 int ff_AMediaCodec_queueInputBuffer(FFAMediaCodec* codec, size_t idx, off_t offset, size_t size, uint64_t time, uint32_t flags)
1468 {
1469     int ret = 0;
1470     JNIEnv *env = NULL;
1471 
1472     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1473 
1474     (*env)->CallVoidMethod(env, codec->object, codec->jfields.queue_input_buffer_id, (jint)idx, (jint)offset, (jint)size, time, flags);
1475     if ((ret = ff_jni_exception_check(env, 1, codec)) < 0) {
1476         ret = AVERROR_EXTERNAL;
1477         goto fail;
1478     }
1479 
1480 fail:
1481     return ret;
1482 }
1483 
ff_AMediaCodec_dequeueOutputBuffer(FFAMediaCodec * codec,FFAMediaCodecBufferInfo * info,int64_t timeoutUs)1484 ssize_t ff_AMediaCodec_dequeueOutputBuffer(FFAMediaCodec* codec, FFAMediaCodecBufferInfo *info, int64_t timeoutUs)
1485 {
1486     int ret = 0;
1487     JNIEnv *env = NULL;
1488 
1489     JNI_GET_ENV_OR_RETURN(env, codec, AVERROR_EXTERNAL);
1490 
1491     ret = (*env)->CallIntMethod(env, codec->object, codec->jfields.dequeue_output_buffer_id, codec->buffer_info, timeoutUs);
1492     if (ff_jni_exception_check(env, 1, codec) < 0) {
1493         return AVERROR_EXTERNAL;
1494     }
1495 
1496     info->flags = (*env)->GetIntField(env, codec->buffer_info, codec->jfields.flags_id);
1497     if (ff_jni_exception_check(env, 1, codec) < 0) {
1498         return AVERROR_EXTERNAL;
1499     }
1500 
1501     info->offset = (*env)->GetIntField(env, codec->buffer_info, codec->jfields.offset_id);
1502     if (ff_jni_exception_check(env, 1, codec) < 0) {
1503         return AVERROR_EXTERNAL;
1504     }
1505 
1506     info->presentationTimeUs = (*env)->GetLongField(env, codec->buffer_info, codec->jfields.presentation_time_us_id);
1507     if (ff_jni_exception_check(env, 1, codec) < 0) {
1508         return AVERROR_EXTERNAL;
1509     }
1510 
1511     info->size = (*env)->GetIntField(env, codec->buffer_info, codec->jfields.size_id);
1512     if (ff_jni_exception_check(env, 1, codec) < 0) {
1513         return AVERROR_EXTERNAL;
1514     }
1515 
1516     return ret;
1517 }
1518 
ff_AMediaCodec_getInputBuffer(FFAMediaCodec * codec,size_t idx,size_t * out_size)1519 uint8_t* ff_AMediaCodec_getInputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size)
1520 {
1521     uint8_t *ret = NULL;
1522     JNIEnv *env = NULL;
1523 
1524     jobject buffer = NULL;
1525     jobject input_buffers = NULL;
1526 
1527     JNI_GET_ENV_OR_RETURN(env, codec, NULL);
1528 
1529     if (codec->has_get_i_o_buffer) {
1530         buffer = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_input_buffer_id, (jint)idx);
1531         if (ff_jni_exception_check(env, 1, codec) < 0) {
1532             goto fail;
1533         }
1534     } else {
1535         if (!codec->input_buffers) {
1536             input_buffers = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_input_buffers_id);
1537             if (ff_jni_exception_check(env, 1, codec) < 0) {
1538                 goto fail;
1539             }
1540 
1541             codec->input_buffers = (*env)->NewGlobalRef(env, input_buffers);
1542             if (ff_jni_exception_check(env, 1, codec) < 0) {
1543                 goto fail;
1544             }
1545         }
1546 
1547         buffer = (*env)->GetObjectArrayElement(env, codec->input_buffers, idx);
1548         if (ff_jni_exception_check(env, 1, codec) < 0) {
1549             goto fail;
1550         }
1551     }
1552 
1553     ret = (*env)->GetDirectBufferAddress(env, buffer);
1554     *out_size = (*env)->GetDirectBufferCapacity(env, buffer);
1555 fail:
1556     if (buffer) {
1557         (*env)->DeleteLocalRef(env, buffer);
1558     }
1559 
1560     if (input_buffers) {
1561         (*env)->DeleteLocalRef(env, input_buffers);
1562     }
1563 
1564     return ret;
1565 }
1566 
ff_AMediaCodec_getOutputBuffer(FFAMediaCodec * codec,size_t idx,size_t * out_size)1567 uint8_t* ff_AMediaCodec_getOutputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size)
1568 {
1569     uint8_t *ret = NULL;
1570     JNIEnv *env = NULL;
1571 
1572     jobject buffer = NULL;
1573     jobject output_buffers = NULL;
1574 
1575     JNI_GET_ENV_OR_RETURN(env, codec, NULL);
1576 
1577     if (codec->has_get_i_o_buffer) {
1578         buffer = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_output_buffer_id, (jint)idx);
1579         if (ff_jni_exception_check(env, 1, codec) < 0) {
1580             goto fail;
1581         }
1582     } else {
1583         if (!codec->output_buffers) {
1584             output_buffers = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_output_buffers_id);
1585             if (ff_jni_exception_check(env, 1, codec) < 0) {
1586                 goto fail;
1587             }
1588 
1589             codec->output_buffers = (*env)->NewGlobalRef(env, output_buffers);
1590             if (ff_jni_exception_check(env, 1, codec) < 0) {
1591                 goto fail;
1592             }
1593         }
1594 
1595         buffer = (*env)->GetObjectArrayElement(env, codec->output_buffers, idx);
1596         if (ff_jni_exception_check(env, 1, codec) < 0) {
1597             goto fail;
1598         }
1599     }
1600 
1601     ret = (*env)->GetDirectBufferAddress(env, buffer);
1602     *out_size = (*env)->GetDirectBufferCapacity(env, buffer);
1603 fail:
1604     if (buffer) {
1605         (*env)->DeleteLocalRef(env, buffer);
1606     }
1607 
1608     if (output_buffers) {
1609         (*env)->DeleteLocalRef(env, output_buffers);
1610     }
1611 
1612     return ret;
1613 }
1614 
ff_AMediaCodec_getOutputFormat(FFAMediaCodec * codec)1615 FFAMediaFormat* ff_AMediaCodec_getOutputFormat(FFAMediaCodec* codec)
1616 {
1617     FFAMediaFormat *ret = NULL;
1618     JNIEnv *env = NULL;
1619 
1620     jobject mediaformat = NULL;
1621 
1622     JNI_GET_ENV_OR_RETURN(env, codec, NULL);
1623 
1624     mediaformat = (*env)->CallObjectMethod(env, codec->object, codec->jfields.get_output_format_id);
1625     if (ff_jni_exception_check(env, 1, codec) < 0) {
1626         goto fail;
1627     }
1628 
1629     ret = ff_AMediaFormat_newFromObject(mediaformat);
1630 fail:
1631     if (mediaformat) {
1632         (*env)->DeleteLocalRef(env, mediaformat);
1633     }
1634 
1635     return ret;
1636 }
1637 
ff_AMediaCodec_infoTryAgainLater(FFAMediaCodec * codec,ssize_t idx)1638 int ff_AMediaCodec_infoTryAgainLater(FFAMediaCodec *codec, ssize_t idx)
1639 {
1640     return idx == codec->INFO_TRY_AGAIN_LATER;
1641 }
1642 
ff_AMediaCodec_infoOutputBuffersChanged(FFAMediaCodec * codec,ssize_t idx)1643 int ff_AMediaCodec_infoOutputBuffersChanged(FFAMediaCodec *codec, ssize_t idx)
1644 {
1645     return idx == codec->INFO_OUTPUT_BUFFERS_CHANGED;
1646 }
1647 
ff_AMediaCodec_infoOutputFormatChanged(FFAMediaCodec * codec,ssize_t idx)1648 int ff_AMediaCodec_infoOutputFormatChanged(FFAMediaCodec *codec, ssize_t idx)
1649 {
1650     return idx == codec->INFO_OUTPUT_FORMAT_CHANGED;
1651 }
1652 
ff_AMediaCodec_getBufferFlagCodecConfig(FFAMediaCodec * codec)1653 int ff_AMediaCodec_getBufferFlagCodecConfig(FFAMediaCodec *codec)
1654 {
1655     return codec->BUFFER_FLAG_CODEC_CONFIG;
1656 }
1657 
ff_AMediaCodec_getBufferFlagEndOfStream(FFAMediaCodec * codec)1658 int ff_AMediaCodec_getBufferFlagEndOfStream(FFAMediaCodec *codec)
1659 {
1660     return codec->BUFFER_FLAG_END_OF_STREAM;
1661 }
1662 
ff_AMediaCodec_getBufferFlagKeyFrame(FFAMediaCodec * codec)1663 int ff_AMediaCodec_getBufferFlagKeyFrame(FFAMediaCodec *codec)
1664 {
1665     return codec->BUFFER_FLAG_KEY_FRAME;
1666 }
1667 
ff_AMediaCodec_getConfigureFlagEncode(FFAMediaCodec * codec)1668 int ff_AMediaCodec_getConfigureFlagEncode(FFAMediaCodec *codec)
1669 {
1670     return codec->CONFIGURE_FLAG_ENCODE;
1671 }
1672 
ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec * codec)1673 int ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec *codec)
1674 {
1675     int ret = 0;
1676 
1677     if (!codec->has_get_i_o_buffer) {
1678         if (codec->output_buffers) {
1679             JNIEnv *env = NULL;
1680 
1681             env = ff_jni_get_env(codec);
1682             if (!env) {
1683                 ret = AVERROR_EXTERNAL;
1684                 goto fail;
1685             }
1686 
1687             (*env)->DeleteGlobalRef(env, codec->output_buffers);
1688             codec->output_buffers = NULL;
1689         }
1690     }
1691 
1692 fail:
1693     return ret;
1694 }
1695 
ff_Build_SDK_INT(AVCodecContext * avctx)1696 int ff_Build_SDK_INT(AVCodecContext *avctx)
1697 {
1698     int ret = -1;
1699     JNIEnv *env = NULL;
1700     jclass versionClass;
1701     jfieldID sdkIntFieldID;
1702     JNI_GET_ENV_OR_RETURN(env, avctx, -1);
1703 
1704     versionClass = (*env)->FindClass(env, "android/os/Build$VERSION");
1705     sdkIntFieldID = (*env)->GetStaticFieldID(env, versionClass, "SDK_INT", "I");
1706     ret = (*env)->GetStaticIntField(env, versionClass, sdkIntFieldID);
1707     (*env)->DeleteLocalRef(env, versionClass);
1708     return ret;
1709 }
1710