// Created by Peng Li on 30/4/2018.
//
#include "ai_suanzi_rtmpclient_Ffmpeg.h"
-#include <android/log.h>
+#include <android/native_window.h>
+#include <android/native_window_jni.h>
+#include "log.h"
-#define TAG "PENG"
-#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,TAG,__VA_ARGS__)
+extern "C" {
+ #include "libavformat/avformat.h"
+ #include "libavcodec/avcodec.h"
+ #include "libswscale/swscale.h"
+ #include "libavutil/imgutils.h"
+ #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) {
- LOGE("######### Ffmpeg JNI ######");
+ jint v = avformat_version();
+ LOGE("######### Ffmpeg JNI version i= %d", v);
return env->NewStringUTF("====== Ffmpeg call =======");
+}
+
+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(¶m, "preset", "ultrafast", 0);
+ av_dict_set(¶m, "tune", "zerolatency", 0);
+
+ if (avcodec_open2(pCodecCtx, pCodec, ¶m) < 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 *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 *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 *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 *env, jobject obj, jobject obj2, jstring fname){
+ return 0;
}
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projects / rtmpclient.git / blobdiff