PapaTutuWawa/gpu-screen-recorder
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Find /dev/dri/card path that exists (the first one)

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dec05eba 2023-04-16 22:48:22 +02:00 committed by dec05eba
parent d953d0bb36
commit c0ebae365d
7 changed files with 42 additions and 15 deletions
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1
include/capture/kms_vaapi.h
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@ -12,6 +12,7 @@ typedef struct {
Display *dpy;
const char *display_to_capture; /* if this is "screen", then the entire x11 screen is captured (all displays). A copy is made of this */
gsr_gpu_info gpu_inf;
const char *card_path; /* reference */
} gsr_capture_kms_vaapi_params;
gsr_capture* gsr_capture_kms_vaapi_create(const gsr_capture_kms_vaapi_params *params);

1
include/capture/xcomposite_vaapi.h
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@ -11,6 +11,7 @@ typedef struct {
Window window;
bool follow_focused; /* If this is set then |window| is ignored */
vec2i region_size; /* This is currently only used with |follow_focused| */
const char *card_path; /* reference */
} gsr_capture_xcomposite_vaapi_params;
gsr_capture* gsr_capture_xcomposite_vaapi_create(const gsr_capture_xcomposite_vaapi_params *params);

3
include/utils.h
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@ -36,4 +36,7 @@ bool get_monitor_by_name(Display *display, const char *name, gsr_monitor *monito
bool gl_get_gpu_info(Display *dpy, gsr_gpu_info *info);
/* |output| should be at least 128 bytes in size */
bool gsr_get_valid_card_path(char *output);
#endif /* GSR_UTILS_H */

4
src/capture/kms_vaapi.c
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@ -65,7 +65,7 @@ static void gsr_capture_kms_vaapi_stop(gsr_capture *cap, AVCodecContext *video_c
static bool drm_create_codec_context(gsr_capture_kms_vaapi *cap_kms, AVCodecContext *video_codec_context) {
AVBufferRef *device_ctx;
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, "/dev/dri/renderD128", NULL, 0) < 0) {
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, cap_kms->params.card_path, NULL, 0) < 0) {
fprintf(stderr, "Error: Failed to create hardware device context\n");
return false;
}
@ -123,7 +123,7 @@ static int gsr_capture_kms_vaapi_start(gsr_capture *cap, AVCodecContext *video_c
gsr_capture_kms_vaapi *cap_kms = cap->priv;
// TODO: Allow specifying another card, and in other places
if(gsr_kms_client_init(&cap_kms->kms_client, "/dev/dri/renderD128") != 0) {
if(gsr_kms_client_init(&cap_kms->kms_client, cap_kms->params.card_path) != 0) {
return -1;
}

2
src/capture/xcomposite_vaapi.c
View File

@ -74,7 +74,7 @@ static Window get_focused_window(Display *display, Atom net_active_window_atom)
static bool drm_create_codec_context(gsr_capture_xcomposite_vaapi *cap_xcomp, AVCodecContext *video_codec_context) {
AVBufferRef *device_ctx;
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, "/dev/dri/renderD128", NULL, 0) < 0) {
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, cap_xcomp->params.card_path, NULL, 0) < 0) {
fprintf(stderr, "Error: Failed to create hardware device context\n");
return false;
}

36
src/main.cpp
View File

@ -372,9 +372,9 @@ static AVCodecContext *create_video_codec_context(AVPixelFormat pix_fmt,
return codec_context;
}
static bool vaapi_create_codec_context(AVCodecContext *video_codec_context) {
static bool vaapi_create_codec_context(AVCodecContext *video_codec_context, const char *card_path) {
AVBufferRef *device_ctx;
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, "/dev/dri/renderD128", NULL, 0) < 0) {
if(av_hwdevice_ctx_create(&device_ctx, AV_HWDEVICE_TYPE_VAAPI, card_path, NULL, 0) < 0) {
fprintf(stderr, "Error: Failed to create hardware device context\n");
return false;
}
@ -410,7 +410,7 @@ static bool vaapi_create_codec_context(AVCodecContext *video_codec_context) {
return true;
}
static bool check_if_codec_valid_for_hardware(const AVCodec *codec, gsr_gpu_vendor vendor) {
static bool check_if_codec_valid_for_hardware(const AVCodec *codec, gsr_gpu_vendor vendor, const char *card_path) {
// Do not use AV_PIX_FMT_CUDA because we dont want to do full check with hardware context
AVCodecContext *codec_context = create_video_codec_context(vendor == GSR_GPU_VENDOR_NVIDIA ? AV_PIX_FMT_YUV420P : AV_PIX_FMT_VAAPI, VideoQuality::VERY_HIGH, 60, codec, false, vendor, FramerateMode::CONSTANT);
if(!codec_context)
@ -420,7 +420,7 @@ static bool check_if_codec_valid_for_hardware(const AVCodec *codec, gsr_gpu_vend
codec_context->height = 512;
if(vendor != GSR_GPU_VENDOR_NVIDIA) {
if(!vaapi_create_codec_context(codec_context)) {
if(!vaapi_create_codec_context(codec_context, card_path)) {
avcodec_free_context(&codec_context);
return false;
}
@ -436,7 +436,7 @@ static bool check_if_codec_valid_for_hardware(const AVCodec *codec, gsr_gpu_vend
return success;
}
static const AVCodec* find_h264_encoder(gsr_gpu_vendor vendor) {
static const AVCodec* find_h264_encoder(gsr_gpu_vendor vendor, const char *card_path) {
const AVCodec *codec = avcodec_find_encoder_by_name(vendor == GSR_GPU_VENDOR_NVIDIA ? "h264_nvenc" : "h264_vaapi");
if(!codec)
codec = avcodec_find_encoder_by_name(vendor == GSR_GPU_VENDOR_NVIDIA ? "nvenc_h264" : "vaapi_h264");
@ -448,13 +448,13 @@ static const AVCodec* find_h264_encoder(gsr_gpu_vendor vendor) {
static bool checked_success = true;
if(!checked) {
checked = true;
if(!check_if_codec_valid_for_hardware(codec, vendor))
if(!check_if_codec_valid_for_hardware(codec, vendor, card_path))
checked_success = false;
}
return checked_success ? codec : nullptr;
}
static const AVCodec* find_h265_encoder(gsr_gpu_vendor vendor) {
static const AVCodec* find_h265_encoder(gsr_gpu_vendor vendor, const char *card_path) {
const AVCodec *codec = avcodec_find_encoder_by_name(vendor == GSR_GPU_VENDOR_NVIDIA ? "hevc_nvenc" : "hevc_vaapi");
if(!codec)
codec = avcodec_find_encoder_by_name(vendor == GSR_GPU_VENDOR_NVIDIA ? "nvenc_hevc" : "vaapi_hevc");
@ -466,7 +466,7 @@ static const AVCodec* find_h265_encoder(gsr_gpu_vendor vendor) {
static bool checked_success = true;
if(!checked) {
checked = true;
if(!check_if_codec_valid_for_hardware(codec, vendor))
if(!check_if_codec_valid_for_hardware(codec, vendor, card_path))
checked_success = false;
}
return checked_success ? codec : nullptr;
@ -1264,6 +1264,15 @@ int main(int argc, char **argv) {
fprintf(stderr, "Info: overclock option has no effect on amd/intel, ignoring option...\n");
}
char card_path[128];
card_path[0] = '\0';
if(gpu_inf.vendor != GSR_GPU_VENDOR_NVIDIA) {
if(!gsr_get_valid_card_path(card_path)) {
fprintf(stderr, "Error: no /dev/dri/cardX device found\n");
return 2;
}
}
// TODO: Fix constant framerate not working properly on amd/intel because capture framerate gets locked to the same framerate as
// game framerate, which doesn't work well when you need to encode multiple duplicate frames.
const FramerateMode framerate_mode = gpu_inf.vendor == GSR_GPU_VENDOR_NVIDIA ? FramerateMode::CONSTANT : FramerateMode::VARIABLE;
@ -1347,6 +1356,7 @@ int main(int argc, char **argv) {
kms_params.dpy = dpy;
kms_params.display_to_capture = capture_target;
kms_params.gpu_inf = gpu_inf;
kms_params.card_path = card_path;
capture = gsr_capture_kms_vaapi_create(&kms_params);
if(!capture)
return 1;
@ -1367,6 +1377,7 @@ int main(int argc, char **argv) {
xcomposite_params.window = src_window_id;
xcomposite_params.follow_focused = follow_focused;
xcomposite_params.region_size = region_size;
xcomposite_params.card_path = card_path;
capture = gsr_capture_xcomposite_vaapi_create(&xcomposite_params);
if(!capture)
return 1;
@ -1377,6 +1388,7 @@ int main(int argc, char **argv) {
xcomposite_params.window = src_window_id;
xcomposite_params.follow_focused = follow_focused;
xcomposite_params.region_size = region_size;
xcomposite_params.card_path = card_path;
capture = gsr_capture_xcomposite_vaapi_create(&xcomposite_params);
if(!capture)
return 1;
@ -1467,7 +1479,7 @@ int main(int argc, char **argv) {
if(strcmp(video_codec_to_use, "auto") == 0) {
if(gpu_inf.vendor == GSR_GPU_VENDOR_INTEL) {
const AVCodec *h264_codec = find_h264_encoder(gpu_inf.vendor);
const AVCodec *h264_codec = find_h264_encoder(gpu_inf.vendor, card_path);
if(!h264_codec) {
fprintf(stderr, "Info: using h265 encoder because a codec was not specified and your gpu does not support h264\n");
video_codec_to_use = "h265";
@ -1478,7 +1490,7 @@ int main(int argc, char **argv) {
video_codec = VideoCodec::H264;
}
} else {
const AVCodec *h265_codec = find_h265_encoder(gpu_inf.vendor);
const AVCodec *h265_codec = find_h265_encoder(gpu_inf.vendor, card_path);
// h265 generally allows recording at a higher resolution than h264 on nvidia cards. On a gtx 1080 4k is the max resolution for h264 but for h265 it's 8k.
// Another important info is that when recording at a higher fps than.. 60? h265 has very bad performance. For example when recording at 144 fps the fps drops to 1
@ -1509,10 +1521,10 @@ int main(int argc, char **argv) {
const AVCodec *video_codec_f = nullptr;
switch(video_codec) {
case VideoCodec::H264:
video_codec_f = find_h264_encoder(gpu_inf.vendor);
video_codec_f = find_h264_encoder(gpu_inf.vendor, card_path);
break;
case VideoCodec::H265:
video_codec_f = find_h265_encoder(gpu_inf.vendor);
video_codec_f = find_h265_encoder(gpu_inf.vendor, card_path);
break;
}

10
src/utils.c
View File

@ -3,6 +3,7 @@
#include <time.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
double clock_get_monotonic_seconds(void) {
struct timespec ts;
@ -103,3 +104,12 @@ bool gl_get_gpu_info(Display *dpy, gsr_gpu_info *info) {
gsr_egl_unload(&gl);
return supported;
}
bool gsr_get_valid_card_path(char *output) {
for(int i = 0; i < 10; ++i) {
sprintf(output, "/dev/dri/card%d", i);
if(access(output, F_OK) == 0)
return true;
}
return false;
}