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Implementation for openh264 codec

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This commit is contained in:
dijunkun
2023-11-03 02:31:57 -07:00
parent 3399d43501
commit a64655dec9
4 changed files with 13 additions and 27 deletions
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28
screen_capture/linux/screen_capture_x11.cpp
View File

@@ -5,14 +5,7 @@
#define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
unsigned char nv12_buffer_[NV12_BUFFER_SIZE];
FILE *file = nullptr;
ScreenCaptureX11::ScreenCaptureX11() {
file = fopen("nv12.yuv", "w+b");
if (!file) {
printf("Fail to open nv12.yuv\n");
}
}
ScreenCaptureX11::ScreenCaptureX11() {}
ScreenCaptureX11::~ScreenCaptureX11() {
if (capture_thread_->joinable()) {
@@ -79,7 +72,7 @@ int ScreenCaptureX11::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
}
pFrame_ = av_frame_alloc();
pFrameNV12_ = av_frame_alloc();
pFrameNv12_ = av_frame_alloc();
const int pixel_w = 1280, pixel_h = 720;
int screen_w = 1280, screen_h = 720;
@@ -100,31 +93,24 @@ int ScreenCaptureX11::Init(const RECORD_DESKTOP_RECT &rect, const int fps,
int ScreenCaptureX11::Start() {
capture_thread_.reset(new std::thread([this]() {
while (1) {
printf("00000\n");
if (av_read_frame(pFormatCtx_, packet_) >= 0) {
printf("111111444444\n");
if (packet_->stream_index == videoindex_) {
printf("11111155555\n");
avcodec_send_packet(pCodecCtx_, packet_);
got_picture_ = avcodec_receive_frame(pCodecCtx_, pFrame_);
printf("33333333\n");
if (!got_picture_) {
printf("44444444444\n");
av_image_fill_arrays(pFrameNV12_->data, pFrameNV12_->linesize,
if (!got_picture_) {
av_image_fill_arrays(pFrameNv12_->data, pFrameNv12_->linesize,
nv12_buffer_, AV_PIX_FMT_NV12, pFrame_->width,
pFrame_->height, 1);
sws_scale(img_convert_ctx_, pFrame_->data, pFrame_->linesize, 0,
pFrame_->height, pFrameNV12_->data,
pFrameNV12_->linesize);
fwrite(nv12_buffer_, 1, pFrame_->width * pFrame_->height * 3 / 2,
file);
pFrame_->height, pFrameNv12_->data,
pFrameNv12_->linesize);
_on_data((unsigned char *)nv12_buffer_,
pFrame_->width * pFrame_->height * 3 / 2, pFrame_->width,
pFrame_->height);
// av_packet_unref(packet_);
}
}
}

2
screen_capture/linux/screen_capture_x11.h
View File

@@ -74,7 +74,7 @@ class ScreenCaptureX11 {
AVDictionary *options_ = nullptr;
AVInputFormat *ifmt_ = nullptr;
AVFrame *pFrame_ = nullptr;
AVFrame *pFrameNV12_ = nullptr;
AVFrame *pFrameNv12_ = nullptr;
AVPacket *packet_ = nullptr;
struct SwsContext *img_convert_ctx_ = nullptr;