You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
137 lines
4.9 KiB
137 lines
4.9 KiB
//
|
|
// Created by frank on 2018/2/1.
|
|
//
|
|
#include "libavcodec/avcodec.h"
|
|
#include "libavformat/avformat.h"
|
|
#include "libswscale/swscale.h"
|
|
#include <android/native_window.h>
|
|
#include <android/native_window_jni.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <libavutil/imgutils.h>
|
|
#include <android/log.h>
|
|
#include "ffmpeg_jni_define.h"
|
|
|
|
#define TAG "VideoPlayer"
|
|
|
|
float play_rate = 1;
|
|
long duration = 0;
|
|
|
|
VIDEO_PLAYER_FUNC(jint, play, jstring filePath, jobject surface) {
|
|
|
|
const char *file_name = (*env)->GetStringUTFChars(env, filePath, JNI_FALSE);
|
|
LOGE(TAG, "open file:%s\n", file_name);
|
|
av_register_all();
|
|
AVFormatContext *pFormatCtx = avformat_alloc_context();
|
|
if (avformat_open_input(&pFormatCtx, file_name, NULL, NULL) != 0) {
|
|
LOGE(TAG, "Couldn't open file:%s\n", file_name);
|
|
return -1;
|
|
}
|
|
if (avformat_find_stream_info(pFormatCtx, NULL) < 0) {
|
|
LOGE(TAG, "Couldn't find stream information.");
|
|
return -1;
|
|
}
|
|
int videoStream = -1, i;
|
|
for (i = 0; i < pFormatCtx->nb_streams; i++) {
|
|
if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO
|
|
&& videoStream < 0) {
|
|
videoStream = i;
|
|
}
|
|
}
|
|
if (videoStream == -1) {
|
|
LOGE(TAG, "couldn't find a video stream.");
|
|
return -1;
|
|
}
|
|
|
|
//get duration of video
|
|
if (pFormatCtx->duration != AV_NOPTS_VALUE) {
|
|
duration = (long) (pFormatCtx->duration / AV_TIME_BASE);
|
|
LOGE(TAG, "duration==%ld", duration);
|
|
}
|
|
|
|
AVCodecContext *pCodecCtx = pFormatCtx->streams[videoStream]->codec;
|
|
AVCodec *pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
|
|
if (pCodec == NULL) {
|
|
LOGE(TAG, "couldn't find Codec.");
|
|
return -1;
|
|
}
|
|
if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
|
|
LOGE(TAG, "Couldn't open codec.");
|
|
return -1;
|
|
}
|
|
|
|
ANativeWindow *nativeWindow = ANativeWindow_fromSurface(env, surface);
|
|
int videoWidth = pCodecCtx->width;
|
|
int videoHeight = pCodecCtx->height;
|
|
ANativeWindow_setBuffersGeometry(nativeWindow, videoWidth, videoHeight,
|
|
WINDOW_FORMAT_RGBA_8888);
|
|
ANativeWindow_Buffer windowBuffer;
|
|
if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
|
|
LOGE(TAG, "Couldn't open codec.");
|
|
return -1;
|
|
}
|
|
AVFrame *pFrame = av_frame_alloc();
|
|
AVFrame *pFrameRGBA = av_frame_alloc();
|
|
if (pFrameRGBA == NULL || pFrame == NULL) {
|
|
LOGE(TAG, "Couldn't allocate video frame.");
|
|
return -1;
|
|
}
|
|
int numBytes = av_image_get_buffer_size(AV_PIX_FMT_RGBA, pCodecCtx->width, pCodecCtx->height,
|
|
1);
|
|
|
|
uint8_t *buffer = (uint8_t *) av_malloc(numBytes * sizeof(uint8_t));
|
|
av_image_fill_arrays(pFrameRGBA->data, pFrameRGBA->linesize, buffer, AV_PIX_FMT_RGBA,
|
|
pCodecCtx->width, pCodecCtx->height, 1);
|
|
|
|
struct SwsContext *sws_ctx = sws_getContext(pCodecCtx->width,
|
|
pCodecCtx->height,
|
|
pCodecCtx->pix_fmt,
|
|
pCodecCtx->width,
|
|
pCodecCtx->height,
|
|
AV_PIX_FMT_RGBA,
|
|
SWS_BILINEAR,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
|
|
int frameFinished;
|
|
AVPacket packet;
|
|
|
|
while (av_read_frame(pFormatCtx, &packet) >= 0) {
|
|
if (packet.stream_index == videoStream) {
|
|
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet);
|
|
if (frameFinished) {
|
|
// lock native window
|
|
ANativeWindow_lock(nativeWindow, &windowBuffer, 0);
|
|
sws_scale(sws_ctx, (uint8_t const *const *) pFrame->data,
|
|
pFrame->linesize, 0, pCodecCtx->height,
|
|
pFrameRGBA->data, pFrameRGBA->linesize);
|
|
uint8_t *dst = windowBuffer.bits;
|
|
int dstStride = windowBuffer.stride * 4;
|
|
uint8_t *src = pFrameRGBA->data[0];
|
|
int srcStride = pFrameRGBA->linesize[0];
|
|
int h;
|
|
for (h = 0; h < videoHeight; h++) {
|
|
memcpy(dst + h * dstStride, src + h * srcStride, (size_t) srcStride);
|
|
}
|
|
ANativeWindow_unlockAndPost(nativeWindow);
|
|
}
|
|
usleep((unsigned long) (1000 * 40 * play_rate));
|
|
}
|
|
av_packet_unref(&packet);
|
|
}
|
|
av_free(buffer);
|
|
av_free(pFrameRGBA);
|
|
av_free(pFrame);
|
|
avcodec_close(pCodecCtx);
|
|
avformat_close_input(&pFormatCtx);
|
|
return 0;
|
|
}
|
|
|
|
VIDEO_PLAYER_FUNC(void, setPlayRate, jfloat playRate) {
|
|
play_rate = playRate;
|
|
}
|
|
|
|
VIDEO_PLAYER_FUNC(jint, getDuration) {
|
|
return duration;
|
|
} |