k
/
FFmpegAndroid
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

media_player改为jni宏定义调用

Browse Source 
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
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 48
      app/src/main/cpp/media_player.c

48
app/src/main/cpp/media_player.c
Unescape View File

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

Write Preview
Loading…
Cancel
Save