parent
c97ea1701a
commit
e661b3211a
@ -1,144 +0,0 @@ |
||||
//
|
||||
// Created by frank on 2018/2/1.
|
||||
//
|
||||
#include <android/native_window.h> |
||||
#include <android/native_window_jni.h> |
||||
#include <stdio.h> |
||||
#include <unistd.h> |
||||
|
||||
#ifdef __cplusplus |
||||
extern "C" { |
||||
#endif |
||||
#include "libavcodec/avcodec.h" |
||||
#include "libavformat/avformat.h" |
||||
#include "libswscale/swscale.h" |
||||
#include "libavutil/imgutils.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( 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, nullptr, nullptr) != 0) { |
||||
LOGE(TAG, "Couldn't open file:%s\n", file_name); |
||||
return -1; |
||||
} |
||||
if (avformat_find_stream_info(pFormatCtx, nullptr) < 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]->codecpar->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 == nullptr) { |
||||
LOGE(TAG, "couldn't find Codec."); |
||||
return -1; |
||||
} |
||||
if (avcodec_open2(pCodecCtx, pCodec, nullptr) < 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, nullptr) < 0) { |
||||
LOGE(TAG, "Couldn't open codec."); |
||||
return -1; |
||||
} |
||||
AVFrame *pFrame = av_frame_alloc(); |
||||
AVFrame *pFrameRGBA = av_frame_alloc(); |
||||
if (pFrameRGBA == nullptr || pFrame == nullptr) { |
||||
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, |
||||
nullptr, |
||||
nullptr, |
||||
nullptr); |
||||
|
||||
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, nullptr); |
||||
sws_scale(sws_ctx, (uint8_t const *const *) pFrame->data, |
||||
pFrame->linesize, 0, pCodecCtx->height, |
||||
pFrameRGBA->data, pFrameRGBA->linesize); |
||||
uint8_t *dst = static_cast<uint8_t *>(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_free_context(&pCodecCtx); |
||||
avformat_close_input(&pFormatCtx); |
||||
return 0; |
||||
} |
||||
|
||||
VIDEO_PLAYER_FUNC(void, setPlayRate, jfloat playRate) { |
||||
play_rate = playRate; |
||||
} |
||||
|
||||
VIDEO_PLAYER_FUNC(jint, getDuration) { |
||||
return duration; |
||||
} |
||||
|
||||
#ifdef __cplusplus |
||||
} |
||||
#endif |
Loading…
Reference in new issue