From 0780efe87d28765520e0d31eaba6fdabc91dd13e Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sat, 29 Aug 2020 04:02:34 +0200 Subject: Vastly improve quality by using qmin and qmax (uses higher bitrate) --- src/main.cpp | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'src') diff --git a/src/main.cpp b/src/main.cpp index 4ca48bd..d4fa686 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -16,6 +16,7 @@ */ #include +#include #include #include #include @@ -100,6 +101,7 @@ static bool x11_supports_composite_named_window_pixmap(Display *dpy) { } static int x11_error_handler(Display *dpy, XErrorEvent *ev) { +#if 0 char type_str[128]; XGetErrorText(dpy, ev->type, type_str, sizeof(type_str)); @@ -117,6 +119,7 @@ static int x11_error_handler(Display *dpy, XErrorEvent *ev) { type_str, ev->request_code, major_opcode_str, ev->minor_code, minor_opcode_str); +#endif return 0; } @@ -422,12 +425,14 @@ static AVStream *add_video_stream(AVFormatContext *av_format_context, AVCodec ** fprintf(stderr, "video stream id: %d\n", stream->id); AVCodecContext *codec_context = stream->codec; + //double fps_ratio = (double)fps / 30.0; + assert((*codec)->type == AVMEDIA_TYPE_VIDEO); codec_context->codec_id = (*codec)->id; fprintf(stderr, "codec id: %d\n", (*codec)->id); codec_context->width = window_pixmap.texture_width & ~1; codec_context->height = window_pixmap.texture_height & ~1; - codec_context->bit_rate = 3500000 + (codec_context->width * codec_context->height) / 2; //5000000 * ((double)fps / 30.0) + (codec_context->width * codec_context->height) / 2; + codec_context->bit_rate = 4000000 + (codec_context->width * codec_context->height) / 2; // Timebase: This is the fundamental unit of time (in seconds) in terms // of which frame timestamps are represented. For fixed-fps content, // timebase should be 1/framerate and timestamp increments should be @@ -438,9 +443,15 @@ static AVStream *add_video_stream(AVFormatContext *av_format_context, AVCodec ** // codec_context->framerate.den = 1; codec_context->sample_aspect_ratio.num = 0; codec_context->sample_aspect_ratio.den = 0; - codec_context->gop_size = 250;//fps * 2; + codec_context->gop_size = 40;//fps * 2; codec_context->max_b_frames = 2; codec_context->pix_fmt = AV_PIX_FMT_CUDA; + codec_context->color_range = AVCOL_RANGE_JPEG; + codec_context->qmin = 16; + codec_context->qmax = 27; + av_opt_set(codec_context->priv_data, "preset", "slow", 0); + av_opt_set(codec_context->priv_data, "profile", "high", 0); + codec_context->profile = FF_PROFILE_H264_HIGH; stream->time_base = codec_context->time_base; stream->avg_frame_rate = av_inv_q(codec_context->time_base); if (codec_context->codec_id == AV_CODEC_ID_MPEG1VIDEO) @@ -585,7 +596,7 @@ static void usage() { fprintf(stderr, " -a Audio device to record from (pulse audio device). Optional, disabled by default.\n"); fprintf(stderr, " -r Replay buffer size in seconds. If this is set, then only the last seconds as set by this option will be stored" " and the video will only be saved when the gpu-screen-recorder is closed. This feature is similar to Nvidia's instant replay feature." - " This option has be between 5 and 1200. Note that the replay buffer size will not always be precise, because of keyframes. Optional, disable by default.\n"); + " This option has be between 5 and 1200. Note that the replay buffer size will not always be precise, because of keyframes. Optional, disabled by default.\n"); fprintf(stderr, " -o The output file path. If omitted, then the encoded data is sent to stdout.\n"); exit(1); } @@ -699,10 +710,10 @@ int main(int argc, char **argv) { glfwSwapInterval(0); glfwHideWindow(window); -#if defined(DEBUG) +//#if defined(DEBUG) XSetErrorHandler(x11_error_handler); XSetIOErrorHandler(x11_io_error_handler); -#endif +//#endif glewExperimental = GL_TRUE; GLenum nGlewError = glewInit(); -- cgit v1.2.3