[FFmpeg-devel] [PATCH 1/2] lavc/mediacodec_wrapper: factorize MediaCodec creation functions

Matthieu Bouron matthieu.bouron at gmail.com
Thu Dec 14 12:09:13 EET 2017


---
 libavcodec/mediacodec_wrapper.c | 262 +++++++++++-----------------------------
 1 file changed, 70 insertions(+), 192 deletions(-)

diff --git a/libavcodec/mediacodec_wrapper.c b/libavcodec/mediacodec_wrapper.c
index f34450a6d8..4660e895ca 100644
--- a/libavcodec/mediacodec_wrapper.c
+++ b/libavcodec/mediacodec_wrapper.c
@@ -1132,200 +1132,78 @@ fail:
     return ret;
 }
 
-FFAMediaCodec* ff_AMediaCodec_createCodecByName(const char *name)
-{
-    int ret = -1;
-    JNIEnv *env = NULL;
-    FFAMediaCodec *codec = NULL;
-    jstring codec_name = NULL;
-    jobject object = NULL;
-
-    codec = av_mallocz(sizeof(FFAMediaCodec));
-    if (!codec) {
-        return NULL;
-    }
-    codec->class = &amediacodec_class;
-
-    env = ff_jni_get_env(codec);
-    if (!env) {
-        av_freep(&codec);
-        return NULL;
-    }
-
-    if (ff_jni_init_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec) < 0) {
-        goto fail;
-    }
-
-    codec_name = ff_jni_utf_chars_to_jstring(env, name, codec);
-    if (!codec_name) {
-        goto fail;
-    }
-
-    object = (*env)->CallStaticObjectMethod(env, codec->jfields.mediacodec_class, codec->jfields.create_by_codec_name_id, codec_name);
-    if (ff_jni_exception_check(env, 1, codec) < 0) {
-        goto fail;
-    }
-
-    codec->object = (*env)->NewGlobalRef(env, object);
-    if (!codec->object) {
-        goto fail;
-    }
-
-    if (codec_init_static_fields(codec) < 0) {
-        goto fail;
-    }
-
-    if (codec->jfields.get_input_buffer_id && codec->jfields.get_output_buffer_id) {
-        codec->has_get_i_o_buffer = 1;
-    }
-
-    ret = 0;
-fail:
-    if (codec_name) {
-        (*env)->DeleteLocalRef(env, codec_name);
-    }
-
-    if (object) {
-        (*env)->DeleteLocalRef(env, object);
-    }
-
-    if (ret < 0) {
-        ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);
-        av_freep(&codec);
-    }
-
-    return codec;
+#define DECLARE_FF_AMEDIACODEC_CREATE_FUNC(func, jfunc)                                     \
+FFAMediaCodec* ff_AMediaCodec_##func(const char *arg)                                       \
+{                                                                                           \
+    int ret = -1;                                                                           \
+    JNIEnv *env = NULL;                                                                     \
+    FFAMediaCodec *codec = NULL;                                                            \
+    jstring jarg = NULL;                                                                    \
+    jobject object = NULL;                                                                  \
+                                                                                            \
+    codec = av_mallocz(sizeof(FFAMediaCodec));                                              \
+    if (!codec) {                                                                           \
+        return NULL;                                                                        \
+    }                                                                                       \
+    codec->class = &amediacodec_class;                                                      \
+                                                                                            \
+    env = ff_jni_get_env(codec);                                                            \
+    if (!env) {                                                                             \
+        av_freep(&codec);                                                                   \
+        return NULL;                                                                        \
+    }                                                                                       \
+                                                                                            \
+    if (ff_jni_init_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec) < 0) { \
+        goto fail;                                                                          \
+    }                                                                                       \
+                                                                                            \
+    jarg = ff_jni_utf_chars_to_jstring(env, arg, codec);                                    \
+    if (!jarg) {                                                                            \
+        goto fail;                                                                          \
+    }                                                                                       \
+                                                                                            \
+    object = (*env)->CallStaticObjectMethod(env,                                            \
+                                            codec->jfields.mediacodec_class,                \
+                                            codec->jfields.jfunc,                           \
+                                            jarg);                                          \
+    if (ff_jni_exception_check(env, 1, codec) < 0) {                                        \
+        goto fail;                                                                          \
+    }                                                                                       \
+                                                                                            \
+    codec->object = (*env)->NewGlobalRef(env, object);                                      \
+    if (!codec->object) {                                                                   \
+        goto fail;                                                                          \
+    }                                                                                       \
+                                                                                            \
+    if (codec_init_static_fields(codec) < 0) {                                              \
+        goto fail;                                                                          \
+    }                                                                                       \
+                                                                                            \
+    if (codec->jfields.get_input_buffer_id && codec->jfields.get_output_buffer_id) {        \
+        codec->has_get_i_o_buffer = 1;                                                      \
+    }                                                                                       \
+                                                                                            \
+    ret = 0;                                                                                \
+fail:                                                                                       \
+    if (jarg) {                                                                             \
+        (*env)->DeleteLocalRef(env, jarg);                                                  \
+    }                                                                                       \
+                                                                                            \
+    if (object) {                                                                           \
+        (*env)->DeleteLocalRef(env, object);                                                \
+    }                                                                                       \
+                                                                                            \
+    if (ret < 0) {                                                                          \
+        ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);      \
+        av_freep(&codec);                                                                   \
+    }                                                                                       \
+                                                                                            \
+    return codec;                                                                           \
 }
 
-FFAMediaCodec* ff_AMediaCodec_createDecoderByType(const char *mime)
-{
-    int ret = -1;
-    JNIEnv *env = NULL;
-    FFAMediaCodec *codec = NULL;
-    jstring mime_type = NULL;
-    jobject object = NULL;
-
-    codec = av_mallocz(sizeof(FFAMediaCodec));
-    if (!codec) {
-        return NULL;
-    }
-    codec->class = &amediacodec_class;
-
-    env = ff_jni_get_env(codec);
-    if (!env) {
-        av_freep(&codec);
-        return NULL;
-    }
-
-    if (ff_jni_init_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec) < 0) {
-        goto fail;
-    }
-
-    mime_type = ff_jni_utf_chars_to_jstring(env, mime, codec);
-    if (!mime_type) {
-        goto fail;
-    }
-
-    object = (*env)->CallStaticObjectMethod(env, codec->jfields.mediacodec_class, codec->jfields.create_decoder_by_type_id, mime_type);
-    if (ff_jni_exception_check(env, 1, codec) < 0) {
-        goto fail;
-    }
-
-    codec->object = (*env)->NewGlobalRef(env, object);
-    if (!codec->object) {
-        goto fail;
-    }
-
-    if (codec_init_static_fields(codec) < 0) {
-        goto fail;
-    }
-
-    if (codec->jfields.get_input_buffer_id && codec->jfields.get_output_buffer_id) {
-        codec->has_get_i_o_buffer = 1;
-    }
-
-    ret = 0;
-fail:
-    if (mime_type) {
-        (*env)->DeleteLocalRef(env, mime_type);
-    }
-
-    if (object) {
-        (*env)->DeleteLocalRef(env, object);
-    }
-
-    if (ret < 0) {
-        ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);
-        av_freep(&codec);
-    }
-
-    return codec;
-}
-
-FFAMediaCodec* ff_AMediaCodec_createEncoderByType(const char *mime)
-{
-    int ret = -1;
-    JNIEnv *env = NULL;
-    FFAMediaCodec *codec = NULL;
-    jstring mime_type = NULL;
-    jobject object = NULL;
-
-    codec = av_mallocz(sizeof(FFAMediaCodec));
-    if (!codec) {
-        return NULL;
-    }
-    codec->class = &amediacodec_class;
-
-    env = ff_jni_get_env(codec);
-    if (!env) {
-        av_freep(&codec);
-        return NULL;
-    }
-
-    if (ff_jni_init_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec) < 0) {
-        goto fail;
-    }
-
-    mime_type = ff_jni_utf_chars_to_jstring(env, mime, codec);
-    if (!mime_type) {
-        goto fail;
-    }
-
-    object = (*env)->CallStaticObjectMethod(env, codec->jfields.mediacodec_class, codec->jfields.create_encoder_by_type_id, mime_type);
-    if (ff_jni_exception_check(env, 1, codec) < 0) {
-        goto fail;
-    }
-
-    codec->object = (*env)->NewGlobalRef(env, object);
-    if (!codec->object) {
-        goto fail;
-    }
-
-    if (codec_init_static_fields(codec) < 0) {
-        goto fail;
-    }
-
-    if (codec->jfields.get_input_buffer_id && codec->jfields.get_output_buffer_id) {
-        codec->has_get_i_o_buffer = 1;
-    }
-
-    ret = 0;
-fail:
-    if (mime_type) {
-        (*env)->DeleteLocalRef(env, mime_type);
-    }
-
-    if (object) {
-        (*env)->DeleteLocalRef(env, object);
-    }
-
-    if  (ret < 0) {
-        ff_jni_reset_jfields(env, &codec->jfields, jni_amediacodec_mapping, 1, codec);
-        av_freep(&codec);
-    }
-
-    return codec;
-}
+DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createCodecByName, create_by_codec_name_id)
+DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createDecoderByType, create_decoder_by_type_id)
+DECLARE_FF_AMEDIACODEC_CREATE_FUNC(createEncoderByType, create_encoder_by_type_id)
 
 int ff_AMediaCodec_delete(FFAMediaCodec* codec)
 {
-- 
2.15.1



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