X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Fai_suanzi_rtmpclient_Ffmpeg.cpp;h=485afea34e55a656aa460f306d07a8d5ca984b48;hb=bceaa4c3f8bbfddb7f4cab257b759d0d0136284c;hp=59292bd25e6010f29a7c92ff68ab7f33d1f07af7;hpb=3e977e8fa8df4d0f336fd4dfce40168fcdfc0b07;p=rtmpclient.git

diff --git a/app/src/main/jni/ai_suanzi_rtmpclient_Ffmpeg.cpp b/app/src/main/jni/ai_suanzi_rtmpclient_Ffmpeg.cpp
index 59292bd..485afea 100644
--- a/app/src/main/jni/ai_suanzi_rtmpclient_Ffmpeg.cpp
+++ b/app/src/main/jni/ai_suanzi_rtmpclient_Ffmpeg.cpp
@@ -14,6 +14,20 @@ extern "C" {
     #include "libavutil/time.h"
 }
 
+int64_t start_time;
+AVFormatContext *ofmt_ctx;
+AVStream* video_st;
+AVCodecContext* pCodecCtx;
+AVCodec* pCodec;
+AVPacket enc_pkt;
+AVFrame *pFrameYUV;
+
+
+int framecnt = 0;
+int yuv_width;
+int yuv_height;
+int y_length;
+int uv_length;
 
 JNIEXPORT jstring JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_getVersion (JNIEnv *env, jobject obj) {
     jint v = avformat_version();
@@ -21,22 +35,198 @@ JNIEXPORT jstring JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_getVersion (JNIEnv *e
     return env->NewStringUTF("====== Ffmpeg call =======");
 }
 
-JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_init (JNIEnv *, jobject, jint, jint) {
+JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_init (JNIEnv *env, jobject obj, jint width, jint height) {
+
+	//const char* out_path = "/storage/emulated/0/Movies/output.flv";
+
+    const char* out_path = "rtmp://192.168.0.101:1935/myapp/suanzi";
+
+
+    LOGE("Ffmpeg init, width=%d, heigh=%d", width, height);
+
+
+	yuv_width=width;
+	yuv_height=height;
+	y_length=width*height;
+	uv_length=width*height/4;
+
+
+	av_register_all();
+
+	//output initialize
+	avformat_alloc_output_context2(&ofmt_ctx, NULL, "flv", out_path);
+	//output encoder initialize
+	pCodec = avcodec_find_encoder(AV_CODEC_ID_H264);
+	if (!pCodec){
+		LOGE("Can not find encoder!\n");
+		return -1;
+	}
+	pCodecCtx = avcodec_alloc_context3(pCodec);
+	pCodecCtx->pix_fmt = AV_PIX_FMT_YUV420P;
+	pCodecCtx->width = width;
+	pCodecCtx->height = height;
+	pCodecCtx->time_base.num = 1;
+	pCodecCtx->time_base.den = 30;
+	pCodecCtx->bit_rate = 800000;
+	pCodecCtx->gop_size = 300;
+	/* Some formats want stream headers to be separate. */
+	if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
+		pCodecCtx->flags |= CODEC_FLAG_GLOBAL_HEADER;
+
+	//H264 codec param
+	//pCodecCtx->me_range = 16;
+	//pCodecCtx->max_qdiff = 4;
+	//pCodecCtx->qcompress = 0.6;
+	pCodecCtx->qmin = 10;
+	pCodecCtx->qmax = 51;
+	//Optional Param
+	pCodecCtx->max_b_frames = 3;
+	// Set H264 preset and tune
+	AVDictionary *param = 0;
+	av_dict_set(&param, "preset", "ultrafast", 0);
+	av_dict_set(&param, "tune", "zerolatency", 0);
+
+	if (avcodec_open2(pCodecCtx, pCodec, &param) < 0){
+		LOGE("Failed to open encoder!\n");
+		return -1;
+	}
+
+	//Add a new stream to output,should be called by the user before avformat_write_header() for muxing
+	video_st = avformat_new_stream(ofmt_ctx, pCodec);
+	if (video_st == NULL){
+		return -1;
+	}
+	video_st->time_base.num = 1;
+	video_st->time_base.den = 30;
+	video_st->codec = pCodecCtx;
+
+	//Open output URL,set before avformat_write_header() for muxing
+	jint ret = 0;
+	if (( ret = avio_open(&ofmt_ctx->pb, out_path, AVIO_FLAG_READ_WRITE)) < 0){
+		LOGE("Failed to open output file! return :%d\n", ret);
+		return -1;
+	}
+
+	//Write File Header
+	avformat_write_header(ofmt_ctx, NULL);
+
+	start_time = av_gettime();
     return 0;
 }
 
-JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_flush (JNIEnv *, jobject){
+JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_flush (JNIEnv *env, jobject obj){
+	int ret;
+	int got_frame;
+	AVPacket enc_pkt;
+	if (!(ofmt_ctx->streams[0]->codec->codec->capabilities & CODEC_CAP_DELAY))
+		return 0;
+	while (1) {
+		enc_pkt.data = NULL;
+		enc_pkt.size = 0;
+		av_init_packet(&enc_pkt);
+		ret = avcodec_encode_video2(ofmt_ctx->streams[0]->codec, &enc_pkt,
+			NULL, &got_frame);
+		if (ret < 0)
+			break;
+		if (!got_frame){
+			ret = 0;
+			break;
+		}
+		LOGE("Flush Encoder: Succeed to encode 1 frame!\tsize:%5d\n", enc_pkt.size);
+
+		//Write PTS
+		AVRational time_base = ofmt_ctx->streams[0]->time_base;//{ 1, 1000 };
+		AVRational r_framerate1 = { 60, 2 };
+		AVRational time_base_q = { 1, AV_TIME_BASE };
+		//Duration between 2 frames (us)
+		int64_t calc_duration = (double)(AV_TIME_BASE)*(1 / av_q2d(r_framerate1));	//内部时间戳
+		//Parameters
+		enc_pkt.pts = av_rescale_q(framecnt*calc_duration, time_base_q, time_base);
+		enc_pkt.dts = enc_pkt.pts;
+		enc_pkt.duration = av_rescale_q(calc_duration, time_base_q, time_base);
+
+		//转换PTS/DTS（Convert PTS/DTS）
+		enc_pkt.pos = -1;
+		framecnt++;
+		ofmt_ctx->duration = enc_pkt.duration * framecnt;
+
+		/* mux encoded frame */
+		ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
+		if (ret < 0)
+			break;
+	}
+	//Write file trailer
+	av_write_trailer(ofmt_ctx);
     return 0;
 }
 
-JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_close (JNIEnv *, jobject){
+JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_close (JNIEnv *env, jobject obj){
+	if (video_st)
+		avcodec_close(video_st->codec);
+	avio_close(ofmt_ctx->pb);
+	avformat_free_context(ofmt_ctx);
     return 0;
 }
 
-JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_process (JNIEnv *, jobject, jbyteArray){
+JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_process (JNIEnv *env, jobject obj, jbyteArray yuv){
+	int ret;
+	int enc_got_frame=0;
+	int i=0;
+
+    //LOGE(" process data - ffmpeg");
+	pFrameYUV = av_frame_alloc();
+	uint8_t *out_buffer = (uint8_t *)av_malloc(avpicture_get_size(AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height));
+	avpicture_fill((AVPicture *)pFrameYUV, out_buffer, AV_PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height);
+
+	//安卓摄像头数据为NV21格式，此处将其转换为YUV420P格式
+	jbyte* in= (jbyte*)env->GetByteArrayElements(yuv,0);
+	memcpy(pFrameYUV->data[0],in,y_length);
+	for(i=0;i<uv_length;i++)
+	{
+		*(pFrameYUV->data[2]+i)=*(in+y_length+i*2);
+		*(pFrameYUV->data[1]+i)=*(in+y_length+i*2+1);
+	}
+
+	pFrameYUV->format = AV_PIX_FMT_YUV420P;
+	pFrameYUV->width = yuv_width;
+	pFrameYUV->height = yuv_height;
+
+	enc_pkt.data = NULL;
+	enc_pkt.size = 0;
+	av_init_packet(&enc_pkt);
+	ret = avcodec_encode_video2(pCodecCtx, &enc_pkt, pFrameYUV, &enc_got_frame);
+	av_frame_free(&pFrameYUV);
+
+	if (enc_got_frame == 1){
+		//LOGE("Succeed to encode frame: %5d\tsize:%5d\n", framecnt, enc_pkt.size);
+		framecnt++;
+		enc_pkt.stream_index = video_st->index;
+
+		//Write PTS
+		AVRational time_base = ofmt_ctx->streams[0]->time_base;//{ 1, 1000 };
+		AVRational r_framerate1 = {60, 2 };//{ 50, 2 };
+		AVRational time_base_q = { 1, AV_TIME_BASE };
+		//Duration between 2 frames (us)
+		int64_t calc_duration = (double)(AV_TIME_BASE)*(1 / av_q2d(r_framerate1));	//内部时间戳
+		//Parameters
+		//enc_pkt.pts = (double)(framecnt*calc_duration)*(double)(av_q2d(time_base_q)) / (double)(av_q2d(time_base));
+		enc_pkt.pts = av_rescale_q(framecnt*calc_duration, time_base_q, time_base);
+		enc_pkt.dts = enc_pkt.pts;
+		enc_pkt.duration = av_rescale_q(calc_duration, time_base_q, time_base); //(double)(calc_duration)*(double)(av_q2d(time_base_q)) / (double)(av_q2d(time_base));
+		enc_pkt.pos = -1;
+
+		//Delay
+		int64_t pts_time = av_rescale_q(enc_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);
+
+		ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
+		av_free_packet(&enc_pkt);
+	}
     return 0;
 }
 
-JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_play (JNIEnv *, jobject, jobject, jstring){
+JNIEXPORT jint JNICALL Java_ai_suanzi_rtmpclient_Ffmpeg_play (JNIEnv *env, jobject obj, jobject obj2, jstring fname){
     return 0;
 }
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