上一篇写了如果编译ffmpeg在android上的动态库,写了如何把动态库引入eclipse android工程,
这次写如何将android端mp4文件推流到nginx,并在网页上观看直播
本文参考了:
最简单的基于FFmpeg的移动端例子：Android 推流器
windows下流媒体nginx-rmtp-module服务器搭建
1.下载nginx服务器,我也是从上面文章中找的,也可以直接下载
https://pan.baidu.com/s/1hspgWb6
这个nginx还是可以的,启用后在浏览器访问,可以推流摄像头内容到nginx,并且观看直播状态,
可以打开看看
2.创建android工程,我也是用的上面的例子的android推流器
视频文件时sd卡根目录的视频文件,
url是nginx服务器地址,可以先把nginx打开,用浏览器访问,允许打开摄像头,看url的规律
在手机端推流的同时,可以在浏览器打开推流的地址,播放视频内容
看android端代码:
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myffnpeg"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="19"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET"/>
</manifest>
MainActivity.java
package com.example.myffnpeg;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
JniUtils jniUtils;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
jniUtils=new JniUtils();
Button startButton = (Button) this.findViewById(R.id.button1);
final EditText urlEdittext_input= (EditText) this.findViewById(R.id.editText1);
final EditText urlEdittext_output= (EditText) this.findViewById(R.id.editText2);
startButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0){
String folderurl=Environment.getExternalStorageDirectory().getPath();
String urltext_input=urlEdittext_input.getText().toString();
String inputurl=folderurl+"/"+urltext_input;
String outputurl=urlEdittext_output.getText().toString();
Log.e("TestLog",inputurl);
Log.e("TestLog",outputurl);
String info="";
int stream = jniUtils.stream(inputurl,outputurl);//推流
Log.e("TestLog",String.valueOf(stream));
Log.e("TestLog",info);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
JniUtils.java
package com.example.myffnpeg;
public class JniUtils {
static {
System.loadLibrary("avcodec-57");
System.loadLibrary("avfilter-6");
System.loadLibrary("avformat-57");
System.loadLibrary("avutil-55");
System.loadLibrary("swresample-2");
System.loadLibrary("swscale-4");
System.loadLibrary("hello-jni");
}
//public native String stringFromJNI();
//public native String avformatinfo();
//public native String avcodecinfo();
//public native String avfilterinfo();
//public native String configurationinfo();
/*推流*/
public native int stream(String inputurl, String outputurl);
}
LOCAL_PATH := $(call my-dir)
#ffmpeg
include $(CLEAR_VARS)
LOCAL_MODULE:= avcodec
LOCAL_SRC_FILES:= libavcodec-57.so
LOCAL_MODULE_FILENAME:=libavcodec-57
include $(PREBUILT_SHARED_LIBRARY) ##指明此模块需要预编译
include $(CLEAR_VARS)
LOCAL_MODULE:= avfilter
LOCAL_SRC_FILES:= libavfilter-6.so
LOCAL_MODULE_FILENAME:=libavfilter-6
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= avformat
LOCAL_SRC_FILES:= libavformat-57.so
LOCAL_MODULE_FILENAME:=libavformat-57
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= avutil
LOCAL_SRC_FILES:= libavutil-55.so
LOCAL_MODULE_FILENAME:=libavutil-55
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= swresample
LOCAL_SRC_FILES:= libswresample-2.so
LOCAL_MODULE_FILENAME:=libswresample-2
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= swscale
LOCAL_SRC_FILES:= libswscale-4.so
LOCAL_MODULE_FILENAME:=libswscale-4
include $(PREBUILT_SHARED_LIBRARY)
#end
#my
include $(CLEAR_VARS)
#指明自己模块的名称
LOCAL_MODULE := hello-jni
#指明自己模块需要的源代码
LOCAL_SRC_FILES := HelloJni.c
#指明.so库的头文件路径
LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
#指明需要使用的ndk自带模块
LOCAL_LDLIBS := -llog -lz -landroid
#指明自己模块编译时需要依赖的模块
LOCAL_SHARED_LIBRARIES := avcodec avfilter avformat avutil swresample swscale
#指明自己的模块编译为动态库
include $(BUILD_SHARED_LIBRARY)
#指明编译时生成armeabi-v7a架构的so文件
APP_ABI := armeabi-v7a #include <string.h>
//#include "com_example_ffmpegtest001_JniUtils.h"
#include <stdio.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include "include/libavutil/avutil.h"
#include "include/libavfilter/avfilter.h"
//http://www.pps.tv/w_19rt0grxmx.html 很好的视频
//Log
#ifdef ANDROID
#include <jni.h>
#include <android/log.h>
#define LOGE(format, ...) __android_log_print(ANDROID_LOG_ERROR, "(>_<)", format, ##__VA_ARGS__)
#else
#define LOGE(format, ...) printf("(>_<) " format "\n", ##__VA_ARGS__)
#endif
/* 注释内容
JNIEXPORT jstring JNICALL Java_com_example_myffnpeg_JniUtils_stringFromJNI(
JNIEnv* env, jobject thiz) {
//return env->NewStringUTF("Hello from JNI ! Compiled with ABI ");
return (*env)->NewStringUTF(env, "Hello from JNI ! Compiled with ABI ");
}
JNIEXPORT jstring JNICALL Java_com_example_myffnpeg_JniUtils_avformatinfo(
JNIEnv* env, jobject thiz) {
char info[40000] = { 0 };
av_register_all();
AVInputFormat *if_temp = av_iformat_next(NULL);
AVOutputFormat *of_temp = av_oformat_next(NULL);
//Input
while (if_temp != NULL) {
sprintf(info, "%s[In ][%10s]\n", info, if_temp->name);
if_temp = if_temp->next;
}
//Output
while (of_temp != NULL) {
sprintf(info, "%s[Out][%10s]\n", info, of_temp->name);
of_temp = of_temp->next;
}
//LOGE("%s", info);
//return env->NewStringUTF(info);
return (*env)->NewStringUTF(env, info);
}
JNIEXPORT jstring JNICALL Java_com_example_myffnpeg_JniUtils_avcodecinfo(
JNIEnv* env, jobject thiz) {
char info[40000] = { 0 };
av_register_all();
AVCodec *c_temp = av_codec_next(NULL);
while (c_temp != NULL) {
if (c_temp->decode != NULL) {
sprintf(info, "%s[Dec]", info);
} else {
sprintf(info, "%s[Enc]", info);
}
switch (c_temp->type) {
case AVMEDIA_TYPE_VIDEO:
sprintf(info, "%s[Video]", info);
break;
case AVMEDIA_TYPE_AUDIO:
sprintf(info, "%s[Audio]", info);
break;
default:
sprintf(info, "%s[Other]", info);
break;
}
sprintf(info, "%s[%10s]\n", info, c_temp->name);
c_temp = c_temp->next;
}
//LOGE("%s", info);
return (*env)->NewStringUTF(env, info);
// return env->NewStringUTF(info);
}
JNIEXPORT jstring JNICALL Java_com_example_myffnpeg_JniUtils_avfilterinfo(
JNIEnv* env, jobject thiz) {
char info[40000] = { 0 };
avfilter_register_all();
AVFilter *f_temp = (AVFilter *) avfilter_next(NULL);
int i = 0;
while (f_temp != NULL) {
sprintf(info, "%s[%10s]\n", info, f_temp->name);
f_temp = f_temp->next;
}
return (*env)->NewStringUTF(env, info);
// return env->NewStringUTF( info);
}
JNIEXPORT jstring JNICALL Java_com_example_myffnpeg_JniUtils_configurationinfo(
JNIEnv* env, jobject thiz) {
char info[10000] = { 0 };
av_register_all();
sprintf(info, "%s\n", avcodec_configuration());
//LOGE("%s", info);
//return env->NewStringUTF(info);
return (*env)->NewStringUTF(env, info);
}
注释内容*/
//-------------------------------推流------------------
//Output FFmpeg's av_log()
void custom_log(void *ptr, int level, const char* fmt, va_list vl){
//To TXT file
FILE *fp=fopen("/storage/emulated/0/av_log.txt","a+");
if(fp){
vfprintf(fp,fmt,vl);
fflush(fp);
fclose(fp);
}
//To Logcat
//LOGE(fmt, vl);
}
JNIEXPORT jint JNICALL Java_com_example_myffnpeg_JniUtils_stream
(JNIEnv *env, jobject obj, jstring input_jstr, jstring output_jstr)
{
AVOutputFormat *ofmt = NULL;
AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
AVPacket pkt;
int ret, i;
char input_str[500]={0};
char output_str[500]={0};
char info[1000]={0};
sprintf(input_str,"%s",(*env)->GetStringUTFChars(env,input_jstr, NULL));
sprintf(output_str,"%s",(*env)->GetStringUTFChars(env,output_jstr, NULL));
//input_str = "cuc_ieschool.flv";
//output_str = "rtmp://localhost/publishlive/livestream";
//output_str = "rtp://233.233.233.233:6666";
//FFmpeg av_log() callback
av_log_set_callback(custom_log);
av_register_all();
//Network
avformat_network_init();
//Input
if ((ret = avformat_open_input(&ifmt_ctx, input_str, 0, 0)) < 0) {
LOGE( "Could not open input file.");
goto end;
}
if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0) {
LOGE( "Failed to retrieve input stream information");
goto end;
}
int videoindex=-1;
for(i=0; i<ifmt_ctx->nb_streams; i++)
if(ifmt_ctx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO){
videoindex=i;
break;
}
//Output
avformat_alloc_output_context2(&ofmt_ctx, NULL, "flv",output_str); //RTMP
//avformat_alloc_output_context2(&ofmt_ctx, NULL, "mpegts", output_str);//UDP
if (!ofmt_ctx) {
LOGE( "Could not create output context\n");
ret = AVERROR_UNKNOWN;
goto end;
}
ofmt = ofmt_ctx->oformat;
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
//Create output AVStream according to input AVStream
AVStream *in_stream = ifmt_ctx->streams[i];
AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec);
if (!out_stream) {
LOGE( "Failed allocating output stream\n");
ret = AVERROR_UNKNOWN;
goto end;
}
//Copy the settings of AVCodecContext
ret = avcodec_copy_context(out_stream->codec, in_stream->codec);
if (ret < 0) {
LOGE( "Failed to copy context from input to output stream codec context\n");
goto end;
}
out_stream->codec->codec_tag = 0;
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
//Open output URL
if (!(ofmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, output_str, AVIO_FLAG_WRITE);
if (ret < 0) {
LOGE( "Could not open output URL '%s'", output_str);
goto end;
}
}
//Write file header
ret = avformat_write_header(ofmt_ctx, NULL);
if (ret < 0) {
LOGE( "Error occurred when opening output URL\n");
goto end;
}
int frame_index=0;
int64_t start_time=av_gettime();
while (1) {
AVStream *in_stream, *out_stream;
//Get an AVPacket
ret = av_read_frame(ifmt_ctx, &pkt);
if (ret < 0)
break;
//FIX：No PTS (Example: Raw H.264)
//Simple Write PTS
if(pkt.pts==AV_NOPTS_VALUE){
//Write PTS
AVRational time_base1=ifmt_ctx->streams[videoindex]->time_base;
//Duration between 2 frames (us)
int64_t calc_duration=(double)AV_TIME_BASE/av_q2d(ifmt_ctx->streams[videoindex]->r_frame_rate);
//Parameters
pkt.pts=(double)(frame_index*calc_duration)/(double)(av_q2d(time_base1)*AV_TIME_BASE);
pkt.dts=pkt.pts;
pkt.duration=(double)calc_duration/(double)(av_q2d(time_base1)*AV_TIME_BASE);
}
//Important:Delay
if(pkt.stream_index==videoindex){
AVRational time_base=ifmt_ctx->streams[videoindex]->time_base;
AVRational time_base_q={1,AV_TIME_BASE};
int64_t pts_time = av_rescale_q(pkt.dts, time_base, time_base_q);
int64_t now_time = av_gettime() - start_time;
if (pts_time > now_time)
av_usleep(pts_time - now_time);
}
in_stream = ifmt_ctx->streams[pkt.stream_index];
out_stream = ofmt_ctx->streams[pkt.stream_index];
/* copy packet */
//Convert PTS/DTS
pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
pkt.pos = -1;
//Print to Screen
if(pkt.stream_index==videoindex){
LOGE("Send %8d video frames to output URL\n",frame_index);
frame_index++;
}
//ret = av_write_frame(ofmt_ctx, &pkt);
ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
if (ret < 0) {
LOGE( "Error muxing packet\n");
break;
}
av_free_packet(&pkt);
}
//Write file trailer
av_write_trailer(ofmt_ctx);
end:
avformat_close_input(&ifmt_ctx);
/* close output */
if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
avio_close(ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
if (ret < 0 && ret != AVERROR_EOF) {
LOGE( "Error occurred.\n");
return -1;
}
return 0;
}
这样应该就可以了,也可以下载我的工程参考
效果图就不上传了,推送手机mp4到nginx服务器,在网页中观看视频内容
我的eclipse工程
https://pan.baidu.com/s/1jIrKru2
我的apk
https://pan.baidu.com/s/1kUG46tL