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media_player改为jni宏定义调用

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media_player改为jni宏定义调用
pull/107/head
xufulong 5 years ago
parent 603629010e
commit fa9e2d5461
1 changed files with 21 additions and 27 deletions
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  1. 48
      app/src/main/cpp/media_player.c

48
app/src/main/cpp/media_player.c
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@ -15,10 +15,9 @@
#include <pthread.h>
#include <jni.h>
#include <libavutil/time.h>
#include "ffmpeg_jni_define.h"
#define TAG "MediaPlayer"
#define LOGI(FORMAT,...) __android_log_print(ANDROID_LOG_INFO, TAG, FORMAT,##__VA_ARGS__);
#define LOGE(FORMAT,...) __android_log_print(ANDROID_LOG_ERROR, TAG, FORMAT,##__VA_ARGS__);
#define MAX_AUDIO_FRAME_SIZE 48000 * 4
#define PACKET_SIZE 50
@ -78,12 +77,12 @@ int init_input_format_context(MediaPlayer* player, const char* file_name){
player->format_context = avformat_alloc_context();
//打开视频文件
if(avformat_open_input(&player->format_context, file_name, NULL, NULL)!=0) {
LOGE("Couldn't open file:%s\n", file_name);
LOGE(TAG, "Couldn't open file:%s\n", file_name);
return -1;
}
//检索多媒体流信息
if(avformat_find_stream_info(player->format_context, NULL)<0) {
LOGE("Couldn't find stream information.");
LOGE(TAG, "Couldn't find stream information.");
return -1;
}
//寻找音视频流索引位置
@ -100,15 +99,15 @@ int init_input_format_context(MediaPlayer* player, const char* file_name){
}
}
if(player->video_stream_index==-1) {
LOGE("couldn't find a video stream.");
LOGE(TAG, "couldn't find a video stream.");
return -1;
}
if(player->audio_stream_index==-1) {
LOGE("couldn't find a audio stream.");
LOGE(TAG, "couldn't find a audio stream.");
return -1;
}
LOGI("video_stream_index=%d", player->video_stream_index);
LOGI("audio_stream_index=%d", player->audio_stream_index);
LOGI(TAG, "video_stream_index=%d", player->video_stream_index);
LOGI(TAG, "audio_stream_index=%d", player->audio_stream_index);
return 0;
}
@ -119,21 +118,21 @@ int init_condec_context(MediaPlayer* player){
//寻找视频流的解码器
player->video_codec = avcodec_find_decoder(player->video_codec_context->codec_id);
if(player->video_codec == NULL) {
LOGE("couldn't find video Codec.");
LOGE(TAG, "couldn't find video Codec.");
return -1;
}
if(avcodec_open2(player->video_codec_context, player->video_codec, NULL) < 0) {
LOGE("Couldn't open video codec.");
LOGE(TAG, "Couldn't open video codec.");
return -1;
}
player->audio_codec_context = player->format_context->streams[player->audio_stream_index]->codec;
player->audio_codec = avcodec_find_decoder(player->audio_codec_context->codec_id);
if( player->audio_codec == NULL) {
LOGE("couldn't find audio Codec.");
LOGE(TAG, "couldn't find audio Codec.");
return -1;
}
if(avcodec_open2(player->audio_codec_context, player->audio_codec, NULL) < 0) {
LOGE("Couldn't open audio codec.");
LOGE(TAG, "Couldn't open audio codec.");
return -1;
}
// 获取视频宽高
@ -196,7 +195,7 @@ int decode_video(MediaPlayer* player, AVPacket* packet){
player->yuv_frame = av_frame_alloc();
player->rgba_frame = av_frame_alloc();
if(player->rgba_frame == NULL || player->yuv_frame == NULL) {
LOGE("Couldn't allocate video frame.");
LOGE(TAG, "Couldn't allocate video frame.");
return -1;
}
@ -224,7 +223,7 @@ int decode_video(MediaPlayer* player, AVPacket* packet){
//对该帧进行解码
int ret = avcodec_decode_video2(player->video_codec_context, player->yuv_frame, &frameFinished, packet);
if(ret < 0){
LOGE("avcodec_decode_video2 error...");
LOGE(TAG, "avcodec_decode_video2 error...");
return -1;
}
if (frameFinished) {
@ -291,13 +290,13 @@ void audio_decoder_prepare(MediaPlayer* player) {
void audio_player_prepare(MediaPlayer* player, JNIEnv* env, jclass jthiz){
jclass player_class = (*env)->GetObjectClass(env,jthiz);
if(!player_class){
LOGE("player_class not found...");
LOGE(TAG, "player_class not found...");
}
//AudioTrack对象
jmethodID audio_track_method = (*env)->GetMethodID(
env,player_class,"createAudioTrack","(II)Landroid/media/AudioTrack;");
if(!audio_track_method){
LOGE("audio_track_method not found...");
LOGE(TAG, "audio_track_method not found...");
}
jobject audio_track = (*env)->CallObjectMethod(
env,jthiz,audio_track_method, player->out_sample_rate, player->out_channel_nb);
@ -323,7 +322,7 @@ int decode_audio(MediaPlayer* player, AVPacket* packet){
//解码
ret = avcodec_decode_audio4(player->audio_codec_context, player->audio_frame, &got_frame, packet);
if(ret < 0){
LOGE("avcodec_decode_audio4 error...");
LOGE(TAG, "avcodec_decode_audio4 error...");
return -1;
}
//解码一帧成功
@ -411,7 +410,7 @@ void* decode_func(void* arg){
//根据stream_index获取对应的AVPacket队列
AVPacketQueue *queue = player->packets[stream_index];
int ret = 0;
// int video_frame_count = 0, audio_frame_count = 0;
for(;;) {
pthread_mutex_lock(&player->mutex);
AVPacket *packet = (AVPacket*)queue_pop(queue, &player->mutex, &player->cond);
@ -419,10 +418,8 @@ void* decode_func(void* arg){
if(stream_index == player->video_stream_index) {//视频流
ret = decode_video(player, packet);
// LOGI("decode video stream = %d", video_frame_count++);
} else if(stream_index == player->audio_stream_index) {//音频流
ret = decode_audio(player, packet);
// LOGI("decode audio stream = %d", audio_frame_count++);
}
av_packet_unref(packet);
if(ret < 0){
@ -431,8 +428,7 @@ void* decode_func(void* arg){
}
}
JNIEXPORT jint JNICALL Java_com_frank_ffmpeg_MediaPlayer_setup
(JNIEnv * env, jobject instance, jstring filePath, jobject surface){
MEDIA_PLAYER_FUNC(jint, setup, jstring filePath, jobject surface){
const char *file_name = (*env)->GetStringUTFChars(env, filePath, JNI_FALSE);
int ret;
@ -455,15 +451,14 @@ JNIEXPORT jint JNICALL Java_com_frank_ffmpeg_MediaPlayer_setup
//初始化音频相关参数
audio_decoder_prepare(player);
//初始化音频播放器
audio_player_prepare(player, env, instance);
audio_player_prepare(player, env, thiz);
//初始化音视频packet队列
init_queue(player, PACKET_SIZE);
return 0;
}
JNIEXPORT jint JNICALL Java_com_frank_ffmpeg_MediaPlayer_play
(JNIEnv * env, jobject instance){
MEDIA_PLAYER_FUNC(jint, play){
pthread_mutex_init(&player->mutex, NULL);
pthread_cond_init(&player->cond, NULL);
@ -487,8 +482,7 @@ JNIEXPORT jint JNICALL Java_com_frank_ffmpeg_MediaPlayer_play
return 0;
}
JNIEXPORT void JNICALL Java_com_frank_ffmpeg_MediaPlayer_release
(JNIEnv * env, jobject instance){
MEDIA_PLAYER_FUNC(void, release){
//释放内存以及关闭文件
free(player->audio_track);
free(player->audio_track_write_mid);

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