change ffprobe_cmd.c to cpp

app/CMakeLists.txt

@@ -33,7 +33,7 @@ add_library( # Sets the name of the library.
             src/main/cpp/media_player.cpp
             src/main/cpp/video_filter.c
             src/main/cpp/fast_start.c
-            src/main/cpp/ffprobe_cmd.c
+            src/main/cpp/ffprobe_cmd.cpp
         )
 
 add_library( ffmpeg

app/src/main/cpp/audio_player.c

@@ -35,7 +35,7 @@ AUDIO_PLAYER_FUNC(void, play, jstring input_jstr) {
     //get the audio stream index in the stream array
     int i = 0, audio_stream_idx = -1;
     for (; i < pFormatCtx->nb_streams; i++) {
-        if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+        if (pFormatCtx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
             audio_stream_idx = i;
             break;
         }

app/src/main/cpp/ffmpeg_jni_define.h

@@ -18,6 +18,14 @@
     JNIEXPORT RETURN_TYPE JNICALL Java_com_frank_ffmpeg_FFmpegCmd_ ## FUNC_NAME \
     (JNIEnv *env, jclass thiz, ##__VA_ARGS__)\
 
+#define FFPROBE_FUNC(RETURN_TYPE, FUNC_NAME, ...) \
+extern "C" { \
+    JNIEXPORT RETURN_TYPE JNICALL Java_com_frank_ffmpeg_FFmpegCmd_ ## FUNC_NAME \
+    (JNIEnv *env, jclass thiz, ##__VA_ARGS__);\
+}\
+    JNIEXPORT RETURN_TYPE JNICALL Java_com_frank_ffmpeg_FFmpegCmd_ ## FUNC_NAME \
+    (JNIEnv *env, jclass thiz, ##__VA_ARGS__)\
+
 #define VIDEO_PLAYER_FUNC(RETURN_TYPE, FUNC_NAME, ...) \
     JNIEXPORT RETURN_TYPE JNICALL Java_com_frank_ffmpeg_VideoPlayer_ ## FUNC_NAME \
     (JNIEnv *env, jobject thiz, ##__VA_ARGS__)\

app/src/main/cpp/ffprobe_cmd.c

@@ -1,33 +0,0 @@
-//
-// Created by frank on 2020-01-06.
-//
-
-#include <jni.h>
-#include <string.h>
-#include <malloc.h>
-#include <ffmpeg_jni_define.h>
-#include <ffmpeg/ffprobe.h>
-
-FFMPEG_FUNC(jstring, handleProbe, jobjectArray commands) {
-    int argc = (*env)->GetArrayLength(env, commands);
-    char **argv = (char **) malloc(argc * sizeof(char *));
-    int i;
-    for (i = 0; i < argc; i++) {
-        jstring jstr = (jstring) (*env)->GetObjectArrayElement(env, commands, i);
-        char *temp = (char *) (*env)->GetStringUTFChars(env, jstr, 0);
-        argv[i] = malloc(1024);
-        strcpy(argv[i], temp);
-        (*env)->ReleaseStringUTFChars(env, jstr, temp);
-    }
-    //execute ffprobe command
-    char *result = ffprobe_run(argc, argv);
-    //release memory
-    for (i = 0; i < argc; i++) {
-        free(argv[i]);
-    }
-    free(argv);
-
-    return (*env)->NewStringUTF(env, result);
-}
-
-

app/src/main/cpp/ffprobe_cmd.cpp

@@ -0,0 +1,42 @@
+//
+// Created by frank on 2020-01-06.
+//
+
+#include <jni.h>
+#include <string.h>
+#include <malloc.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ffmpeg_jni_define.h"
+#include "ffmpeg/ffprobe.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+FFPROBE_FUNC(jstring, handleProbe, jobjectArray commands) {
+    int argc = env->GetArrayLength(commands);
+    char **argv = (char **) malloc(argc * sizeof(char *));
+    int i;
+    for (i = 0; i < argc; i++) {
+        jstring jstr = (jstring) env->GetObjectArrayElement( commands, i);
+        char *temp = (char *) env->GetStringUTFChars(jstr, 0);
+        argv[i] = static_cast<char *>(malloc(1024));
+        strcpy(argv[i], temp);
+        env->ReleaseStringUTFChars(jstr, temp);
+    }
+    //execute ffprobe command
+    char *result = ffprobe_run(argc, argv);
+    //release memory
+    for (i = 0; i < argc; i++) {
+        free(argv[i]);
+    }
+    free(argv);
+
+    return env->NewStringUTF(result);
+}
+
+