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examples: drop dead client code 

Client examples have been moved to another repo, but it seems I
forgot to delete some files.

Fixes: 0bb445eeff ("examples: split clients in separate repository")
This commit is contained in:
Simon Ser 2023-10-25 17:53:43 +02:00
parent 47bf87ade2
commit ffa8e3ec81
2 changed files with 0 additions and 1398 deletions
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909
examples/dmabuf-capture.c
View File

@ -1,909 +0,0 @@
#define _POSIX_C_SOURCE 199309L
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/display.h>
#include <libavutil/hwcontext_drm.h>
#include <libavutil/pixdesc.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <stdbool.h>
#include <drm_fourcc.h>
#include "wlr-export-dmabuf-unstable-v1-client-protocol.h"
struct wayland_output {
struct wl_list link;
uint32_t id;
struct wl_output *output;
char *make;
char *model;
int width;
int height;
AVRational framerate;
};
struct fifo_buffer {
AVFrame **queued_frames;
int num_queued_frames;
int max_queued_frames;
pthread_mutex_t lock;
pthread_cond_t cond;
pthread_mutex_t cond_lock;
};
struct capture_context {
AVClass *class; /* For pretty logging */
struct wl_display *display;
struct wl_registry *registry;
struct zwlr_export_dmabuf_manager_v1 *export_manager;
struct wl_list output_list;
/* Target */
struct wl_output *target_output;
bool with_cursor;
/* Main frame callback */
struct zwlr_export_dmabuf_frame_v1 *frame_callback;
/* If something happens during capture */
int err;
bool quit;
/* FFmpeg specific parts */
pthread_t vid_thread;
AVFrame *current_frame;
AVFormatContext *avf;
AVCodecContext *avctx;
AVBufferRef *drm_device_ref;
AVBufferRef *drm_frames_ref;
AVBufferRef *mapped_device_ref;
AVBufferRef *mapped_frames_ref;
/* Sync stuff */
struct fifo_buffer vid_frames;
int64_t start_pts;
/* Config */
enum AVPixelFormat software_format;
enum AVHWDeviceType hw_device_type;
AVDictionary *encoder_opts;
int is_software_encoder;
char *hardware_device;
char *out_filename;
char *encoder_name;
float out_bitrate;
};
static int init_fifo(struct fifo_buffer *buf, int max_queued_frames) {
pthread_mutex_init(&buf->lock, NULL);
pthread_cond_init(&buf->cond, NULL);
pthread_mutex_init(&buf->cond_lock, NULL);
buf->num_queued_frames = 0;
buf->max_queued_frames = max_queued_frames;
buf->queued_frames = av_mallocz(buf->max_queued_frames * sizeof(AVFrame));
return !buf->queued_frames ? AVERROR(ENOMEM) : 0;
}
static int get_fifo_size(struct fifo_buffer *buf) {
pthread_mutex_lock(&buf->lock);
int ret = buf->num_queued_frames;
pthread_mutex_unlock(&buf->lock);
return ret;
}
static int push_to_fifo(struct fifo_buffer *buf, AVFrame *f) {
int ret;
pthread_mutex_lock(&buf->lock);
if ((buf->num_queued_frames + 1) > buf->max_queued_frames) {
av_frame_free(&f);
ret = 1;
} else {
buf->queued_frames[buf->num_queued_frames++] = f;
ret = 0;
}
pthread_mutex_unlock(&buf->lock);
pthread_cond_signal(&buf->cond);
return ret;
}
static AVFrame *pop_from_fifo(struct fifo_buffer *buf) {
pthread_mutex_lock(&buf->lock);
if (!buf->num_queued_frames) {
pthread_mutex_unlock(&buf->lock);
pthread_cond_wait(&buf->cond, &buf->cond_lock);
pthread_mutex_lock(&buf->lock);
}
AVFrame *rf = buf->queued_frames[0];
for (int i = 1; i < buf->num_queued_frames; i++) {
buf->queued_frames[i - 1] = buf->queued_frames[i];
}
buf->num_queued_frames--;
buf->queued_frames[buf->num_queued_frames] = NULL;
pthread_mutex_unlock(&buf->lock);
return rf;
}
static void free_fifo(struct fifo_buffer *buf) {
pthread_mutex_lock(&buf->lock);
if (buf->num_queued_frames) {
for (int i = 0; i < buf->num_queued_frames; i++) {
av_frame_free(&buf->queued_frames[i]);
}
}
av_freep(&buf->queued_frames);
pthread_mutex_unlock(&buf->lock);
}
static void output_handle_geometry(void *data, struct wl_output *wl_output,
int32_t x, int32_t y, int32_t phys_width, int32_t phys_height,
int32_t subpixel, const char *make, const char *model,
int32_t transform) {
struct wayland_output *output = data;
output->make = av_strdup(make);
output->model = av_strdup(model);
}
static void output_handle_mode(void *data, struct wl_output *wl_output,
uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
if (flags & WL_OUTPUT_MODE_CURRENT) {
struct wayland_output *output = data;
output->width = width;
output->height = height;
output->framerate = (AVRational){ refresh, 1000 };
}
}
static void output_handle_done(void* data, struct wl_output *wl_output) {
/* Nothing to do */
}
static void output_handle_scale(void* data, struct wl_output *wl_output,
int32_t factor) {
/* Nothing to do */
}
static const struct wl_output_listener output_listener = {
.geometry = output_handle_geometry,
.mode = output_handle_mode,
.done = output_handle_done,
.scale = output_handle_scale,
};
static void registry_handle_add(void *data, struct wl_registry *reg,
uint32_t id, const char *interface, uint32_t ver) {
struct capture_context *ctx = data;
if (!strcmp(interface, wl_output_interface.name)) {
struct wayland_output *output = av_mallocz(sizeof(*output));
output->id = id;
output->output = wl_registry_bind(reg, id, &wl_output_interface, 1);
wl_output_add_listener(output->output, &output_listener, output);
wl_list_insert(&ctx->output_list, &output->link);
}
if (!strcmp(interface, zwlr_export_dmabuf_manager_v1_interface.name)) {
ctx->export_manager = wl_registry_bind(reg, id,
&zwlr_export_dmabuf_manager_v1_interface, 1);
}
}
static void remove_output(struct wayland_output *out) {
wl_list_remove(&out->link);
av_free(out->make);
av_free(out->model);
av_free(out);
}
static struct wayland_output *find_output(struct capture_context *ctx,
struct wl_output *out, int id) {
struct wayland_output *output, *tmp;
wl_list_for_each_safe(output, tmp, &ctx->output_list, link) {
if (output->output == out || (id >= 0 && output->id == (uint32_t)id)
|| id == -1) {
return output;
}
}
return NULL;
}
static void registry_handle_remove(void *data, struct wl_registry *reg,
uint32_t id) {
remove_output(find_output((struct capture_context *)data, NULL, id));
}
static const struct wl_registry_listener registry_listener = {
.global = registry_handle_add,
.global_remove = registry_handle_remove,
};
static void frame_free(void *opaque, uint8_t *data) {
AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor *)data;
if (desc) {
for (int i = 0; i < desc->nb_objects; ++i) {
close(desc->objects[i].fd);
}
av_free(data);
}
zwlr_export_dmabuf_frame_v1_destroy(opaque);
}
static void frame_start(void *data, struct zwlr_export_dmabuf_frame_v1 *frame,
uint32_t width, uint32_t height, uint32_t offset_x, uint32_t offset_y,
uint32_t buffer_flags, uint32_t flags, uint32_t format,
uint32_t mod_high, uint32_t mod_low, uint32_t num_objects) {
struct capture_context *ctx = data;
int err = 0;
/* Allocate DRM specific struct */
AVDRMFrameDescriptor *desc = av_mallocz(sizeof(*desc));
if (!desc) {
err = AVERROR(ENOMEM);
goto fail;
}
desc->nb_objects = num_objects;
desc->objects[0].format_modifier = ((uint64_t)mod_high << 32) | mod_low;
desc->nb_layers = 1;
desc->layers[0].format = format;
/* Allocate a frame */
AVFrame *f = av_frame_alloc();
if (!f) {
err = AVERROR(ENOMEM);
goto fail;
}
/* Set base frame properties */
ctx->current_frame = f;
f->width = width;
f->height = height;
f->format = AV_PIX_FMT_DRM_PRIME;
/* Set the frame data to the DRM specific struct */
f->buf[0] = av_buffer_create((uint8_t*)desc, sizeof(*desc),
&frame_free, frame, 0);
if (!f->buf[0]) {
err = AVERROR(ENOMEM);
goto fail;
}
f->data[0] = (uint8_t*)desc;
return;
fail:
ctx->err = err;
frame_free(frame, (uint8_t *)desc);
}
static void frame_object(void *data, struct zwlr_export_dmabuf_frame_v1 *frame,
uint32_t index, int32_t fd, uint32_t size, uint32_t offset,
uint32_t stride, uint32_t plane_index) {
struct capture_context *ctx = data;
AVFrame *f = ctx->current_frame;
AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor *)f->data[0];
desc->objects[index].fd = fd;
desc->objects[index].size = size;
desc->layers[0].planes[plane_index].object_index = index;
desc->layers[0].planes[plane_index].offset = offset;
desc->layers[0].planes[plane_index].pitch = stride;
}
static enum AVPixelFormat drm_fmt_to_pixfmt(uint32_t fmt) {
switch (fmt) {
case DRM_FORMAT_NV12: return AV_PIX_FMT_NV12;
case DRM_FORMAT_ARGB8888: return AV_PIX_FMT_BGRA;
case DRM_FORMAT_XRGB8888: return AV_PIX_FMT_BGR0;
case DRM_FORMAT_ABGR8888: return AV_PIX_FMT_RGBA;
case DRM_FORMAT_XBGR8888: return AV_PIX_FMT_RGB0;
case DRM_FORMAT_RGBA8888: return AV_PIX_FMT_ABGR;
case DRM_FORMAT_RGBX8888: return AV_PIX_FMT_0BGR;
case DRM_FORMAT_BGRA8888: return AV_PIX_FMT_ARGB;
case DRM_FORMAT_BGRX8888: return AV_PIX_FMT_0RGB;
default: return AV_PIX_FMT_NONE;
};
}
static int attach_drm_frames_ref(struct capture_context *ctx, AVFrame *f,
enum AVPixelFormat sw_format) {
int err = 0;
AVHWFramesContext *hwfc;
if (ctx->drm_frames_ref) {
hwfc = (AVHWFramesContext*)ctx->drm_frames_ref->data;
if (hwfc->width == f->width && hwfc->height == f->height &&
hwfc->sw_format == sw_format) {
goto attach;
}
av_buffer_unref(&ctx->drm_frames_ref);
}
ctx->drm_frames_ref = av_hwframe_ctx_alloc(ctx->drm_device_ref);
if (!ctx->drm_frames_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
hwfc = (AVHWFramesContext*)ctx->drm_frames_ref->data;
hwfc->format = f->format;
hwfc->sw_format = sw_format;
hwfc->width = f->width;
hwfc->height = f->height;
err = av_hwframe_ctx_init(ctx->drm_frames_ref);
if (err) {
av_log(ctx, AV_LOG_ERROR, "AVHWFramesContext init failed: %s!\n",
av_err2str(err));
goto fail;
}
attach:
/* Set frame hardware context referencce */
f->hw_frames_ctx = av_buffer_ref(ctx->drm_frames_ref);
if (!f->hw_frames_ctx) {
err = AVERROR(ENOMEM);
goto fail;
}
return 0;
fail:
av_buffer_unref(&ctx->drm_frames_ref);
return err;
}
static void register_cb(struct capture_context *ctx);
static void frame_ready(void *data, struct zwlr_export_dmabuf_frame_v1 *frame,
uint32_t tv_sec_hi, uint32_t tv_sec_lo, uint32_t tv_nsec) {
struct capture_context *ctx = data;
AVFrame *f = ctx->current_frame;
AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor *)f->data[0];
enum AVPixelFormat pix_fmt = drm_fmt_to_pixfmt(desc->layers[0].format);
int err = 0;
/* Timestamp, nanoseconds timebase */
f->pts = ((((uint64_t)tv_sec_hi) << 32) | tv_sec_lo) * 1000000000 + tv_nsec;
if (!ctx->start_pts) {
ctx->start_pts = f->pts;
}
f->pts = av_rescale_q(f->pts - ctx->start_pts, (AVRational){ 1, 1000000000 },
ctx->avctx->time_base);
/* Attach the hardware frame context to the frame */
err = attach_drm_frames_ref(ctx, f, pix_fmt);
if (err) {
goto end;
}
/* TODO: support multiplane stuff */
desc->layers[0].nb_planes = av_pix_fmt_count_planes(pix_fmt);
AVFrame *mapped_frame = av_frame_alloc();
if (!mapped_frame) {
err = AVERROR(ENOMEM);
goto end;
}
AVHWFramesContext *mapped_hwfc;
mapped_hwfc = (AVHWFramesContext *)ctx->mapped_frames_ref->data;
mapped_frame->format = mapped_hwfc->format;
mapped_frame->pts = f->pts;
/* Set frame hardware context referencce */
mapped_frame->hw_frames_ctx = av_buffer_ref(ctx->mapped_frames_ref);
if (!mapped_frame->hw_frames_ctx) {
err = AVERROR(ENOMEM);
goto end;
}
err = av_hwframe_map(mapped_frame, f, 0);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Error mapping: %s!\n", av_err2str(err));
goto end;
}
if (push_to_fifo(&ctx->vid_frames, mapped_frame)) {
av_log(ctx, AV_LOG_WARNING, "Dropped frame!\n");
}
if (!ctx->quit && !ctx->err) {
register_cb(ctx);
}
end:
ctx->err = err;
av_frame_free(&ctx->current_frame);
}
static void frame_cancel(void *data, struct zwlr_export_dmabuf_frame_v1 *frame,
uint32_t reason) {
struct capture_context *ctx = data;
av_log(ctx, AV_LOG_WARNING, "Frame cancelled!\n");
av_frame_free(&ctx->current_frame);
if (reason == ZWLR_EXPORT_DMABUF_FRAME_V1_CANCEL_REASON_PERMANENT) {
av_log(ctx, AV_LOG_ERROR, "Permanent failure, exiting\n");
ctx->err = true;
} else {
register_cb(ctx);
}
}
static const struct zwlr_export_dmabuf_frame_v1_listener frame_listener = {
.frame = frame_start,
.object = frame_object,
.ready = frame_ready,
.cancel = frame_cancel,
};
static void register_cb(struct capture_context *ctx) {
ctx->frame_callback = zwlr_export_dmabuf_manager_v1_capture_output(
ctx->export_manager, ctx->with_cursor, ctx->target_output);
zwlr_export_dmabuf_frame_v1_add_listener(ctx->frame_callback,
&frame_listener, ctx);
}
static void *vid_encode_thread(void *arg) {
int err = 0;
struct capture_context *ctx = arg;
do {
AVFrame *f = NULL;
if (get_fifo_size(&ctx->vid_frames) || !ctx->quit) {
f = pop_from_fifo(&ctx->vid_frames);
}
if (ctx->is_software_encoder && f) {
AVFrame *soft_frame = av_frame_alloc();
av_hwframe_transfer_data(soft_frame, f, 0);
soft_frame->pts = f->pts;
av_frame_free(&f);
f = soft_frame;
}
err = avcodec_send_frame(ctx->avctx, f);
av_frame_free(&f);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Error encoding: %s!\n", av_err2str(err));
goto end;
}
while (1) {
AVPacket *pkt = av_packet_alloc();
int ret = avcodec_receive_packet(ctx->avctx, pkt);
if (ret == AVERROR(EAGAIN)) {
av_packet_free(&pkt);
break;
} else if (ret == AVERROR_EOF) {
av_log(ctx, AV_LOG_INFO, "Encoder flushed!\n");
av_packet_free(&pkt);
goto end;
} else if (ret) {
av_log(ctx, AV_LOG_ERROR, "Error encoding: %s!\n",
av_err2str(ret));
av_packet_free(&pkt);
err = ret;
goto end;
}
pkt->stream_index = 0;
err = av_interleaved_write_frame(ctx->avf, pkt);
av_packet_free(&pkt);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Writing packet fail: %s!\n",
av_err2str(err));
goto end;
}
};
int64_t frame_num;
#if LIBAVUTIL_VERSION_MAJOR >= 58
frame_num = ctx->avctx->frame_num;
#else
frame_num = ctx->avctx->frame_number;
#endif
av_log(ctx, AV_LOG_INFO, "Encoded frame %"PRIi64" (%i in queue)\n",
frame_num, get_fifo_size(&ctx->vid_frames));
} while (!ctx->err);
end:
if (!ctx->err) {
ctx->err = err;
}
return NULL;
}
static int init_lavu_hwcontext(struct capture_context *ctx) {
/* DRM hwcontext */
ctx->drm_device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DRM);
if (!ctx->drm_device_ref)
return AVERROR(ENOMEM);
AVHWDeviceContext *ref_data = (AVHWDeviceContext*)ctx->drm_device_ref->data;
AVDRMDeviceContext *hwctx = ref_data->hwctx;
/* We don't need a device (we don't even know it and can't open it) */
hwctx->fd = -1;
av_hwdevice_ctx_init(ctx->drm_device_ref);
/* Mapped hwcontext */
int err = av_hwdevice_ctx_create(&ctx->mapped_device_ref,
ctx->hw_device_type, ctx->hardware_device, NULL, 0);
if (err < 0) {
av_log(ctx, AV_LOG_ERROR, "Failed to create a hardware device: %s\n",
av_err2str(err));
return err;
}
return 0;
}
static int set_hwframe_ctx(struct capture_context *ctx,
AVBufferRef *hw_device_ctx) {
AVHWFramesContext *frames_ctx = NULL;
int err = 0;
if (!(ctx->mapped_frames_ref = av_hwframe_ctx_alloc(hw_device_ctx))) {
return AVERROR(ENOMEM);
}
AVHWFramesConstraints *cst =
av_hwdevice_get_hwframe_constraints(ctx->mapped_device_ref, NULL);
if (!cst) {
av_log(ctx, AV_LOG_ERROR, "Failed to get hw device constraints!\n");
av_buffer_unref(&ctx->mapped_frames_ref);
return AVERROR(ENOMEM);
}
frames_ctx = (AVHWFramesContext *)(ctx->mapped_frames_ref->data);
frames_ctx->format = cst->valid_hw_formats[0];
frames_ctx->sw_format = ctx->avctx->pix_fmt;
frames_ctx->width = ctx->avctx->width;
frames_ctx->height = ctx->avctx->height;
av_hwframe_constraints_free(&cst);
if ((err = av_hwframe_ctx_init(ctx->mapped_frames_ref))) {
av_log(ctx, AV_LOG_ERROR, "Failed to initialize hw frame context: %s!\n",
av_err2str(err));
av_buffer_unref(&ctx->mapped_frames_ref);
return err;
}
if (!ctx->is_software_encoder) {
ctx->avctx->pix_fmt = frames_ctx->format;
ctx->avctx->hw_frames_ctx = av_buffer_ref(ctx->mapped_frames_ref);
if (!ctx->avctx->hw_frames_ctx) {
av_buffer_unref(&ctx->mapped_frames_ref);
err = AVERROR(ENOMEM);
}
}
return err;
}
static int init_encoding(struct capture_context *ctx) {
int err;
/* lavf init */
err = avformat_alloc_output_context2(&ctx->avf, NULL,
NULL, ctx->out_filename);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Unable to init lavf context!\n");
return err;
}
AVStream *st = avformat_new_stream(ctx->avf, NULL);
if (!st) {
av_log(ctx, AV_LOG_ERROR, "Unable to alloc stream!\n");
return 1;
}
/* Find encoder */
const AVCodec *out_codec = avcodec_find_encoder_by_name(ctx->encoder_name);
if (!out_codec) {
av_log(ctx, AV_LOG_ERROR, "Codec not found (not compiled in lavc?)!\n");
return AVERROR(EINVAL);
}
ctx->avf->oformat = av_guess_format(ctx->encoder_name, NULL, NULL);
ctx->is_software_encoder = !(out_codec->capabilities & AV_CODEC_CAP_HARDWARE);
ctx->avctx = avcodec_alloc_context3(out_codec);
if (!ctx->avctx)
return 1;
ctx->avctx->opaque = ctx;
ctx->avctx->bit_rate = (int)ctx->out_bitrate*1000000.0f;
ctx->avctx->pix_fmt = ctx->software_format;
ctx->avctx->time_base = (AVRational){ 1, 1000 };
ctx->avctx->compression_level = 7;
ctx->avctx->width = find_output(ctx, ctx->target_output, 0)->width;
ctx->avctx->height = find_output(ctx, ctx->target_output, 0)->height;
if (ctx->avf->oformat->flags & AVFMT_GLOBALHEADER) {
ctx->avctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
}
st->id = 0;
st->time_base = ctx->avctx->time_base;
st->avg_frame_rate = find_output(ctx, ctx->target_output, 0)->framerate;
/* Init hw frames context */
err = set_hwframe_ctx(ctx, ctx->mapped_device_ref);
if (err) {
return err;
}
err = avcodec_open2(ctx->avctx, out_codec, &ctx->encoder_opts);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Cannot open encoder: %s!\n",
av_err2str(err));
return err;
}
if (avcodec_parameters_from_context(st->codecpar, ctx->avctx) < 0) {
av_log(ctx, AV_LOG_ERROR, "Couldn't copy codec params: %s!\n",
av_err2str(err));
return err;
}
/* Debug print */
av_dump_format(ctx->avf, 0, ctx->out_filename, 1);
/* Open for writing */
err = avio_open(&ctx->avf->pb, ctx->out_filename, AVIO_FLAG_WRITE);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Couldn't open %s: %s!\n", ctx->out_filename,
av_err2str(err));
return err;
}
err = avformat_write_header(ctx->avf, NULL);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Couldn't write header: %s!\n", av_err2str(err));
return err;
}
return err;
}
struct capture_context *q_ctx = NULL;
static void on_quit_signal(int signo) {
printf("\r");
av_log(q_ctx, AV_LOG_WARNING, "Quitting!\n");
q_ctx->quit = true;
}
static int main_loop(struct capture_context *ctx) {
int err;
q_ctx = ctx;
if (signal(SIGINT, on_quit_signal) == SIG_ERR) {
av_log(ctx, AV_LOG_ERROR, "Unable to install signal handler!\n");
return AVERROR(EINVAL);
}
err = init_lavu_hwcontext(ctx);
if (err) {
return err;
}
err = init_encoding(ctx);
if (err) {
return err;
}
/* Start video encoding thread */
err = init_fifo(&ctx->vid_frames, 16);
if (err) {
return err;
}
pthread_create(&ctx->vid_thread, NULL, vid_encode_thread, ctx);
/* Start the frame callback */
register_cb(ctx);
/* Run capture */
while (wl_display_dispatch(ctx->display) != -1 && !ctx->err && !ctx->quit);
/* Join with encoder thread */
pthread_join(ctx->vid_thread, NULL);
err = av_write_trailer(ctx->avf);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Error writing trailer: %s!\n",
av_err2str(err));
return err;
}
av_log(ctx, AV_LOG_INFO, "Wrote trailer!\n");
return ctx->err;
}
static int init(struct capture_context *ctx) {
ctx->display = wl_display_connect(NULL);
if (!ctx->display) {
av_log(ctx, AV_LOG_ERROR, "Failed to connect to display!\n");
return AVERROR(EINVAL);
}
wl_list_init(&ctx->output_list);
ctx->registry = wl_display_get_registry(ctx->display);
wl_registry_add_listener(ctx->registry, &registry_listener, ctx);
// First roundtrip to fetch globals
wl_display_roundtrip(ctx->display);
// Second roundtrip to fetch wl_output information
wl_display_roundtrip(ctx->display);
if (!ctx->export_manager) {
av_log(ctx, AV_LOG_ERROR, "Compositor doesn't support %s!\n",
zwlr_export_dmabuf_manager_v1_interface.name);
return -1;
}
return 0;
}
static void uninit(struct capture_context *ctx);
static const char usage[] = "usage: dmabuf-capture [options...] <destination file path>\n"
" -o <output ID>\n"
" -t <hardware device type>\n"
" -d <device path>\n"
" -e <encoder>\n"
" -f <pixel format>\n"
" -r <bitrate in Mbps>\n"
"\n"
"Example:\n"
" dmabuf-capture -o 32 -t vaapi -d /dev/dri/renderD129 \\\n"
" -e libx264 -f nv12 -r 12 recording.mkv\n";
int main(int argc, char *argv[]) {
struct capture_context ctx = {
.hardware_device = "/dev/dri/renderD128",
.encoder_name = "libx264",
.out_bitrate = 12,
};
int output_id = -1;
const char *hw_device_type = "vaapi";
const char *software_format = "nv12";
int opt;
while ((opt = getopt(argc, argv, "ho:t:d:e:f:r:")) != -1) {
char *end;
switch (opt) {
case 'o':
output_id = strtol(optarg, &end, 10);
if (optarg[0] == '\0' || end[0] != '\0') {
fprintf(stderr, "Output ID is not an integer\n");
return 1;
}
break;
case 't':
hw_device_type = optarg;
break;
case 'd':
ctx.hardware_device = optarg;
break;
case 'e':
ctx.encoder_name = optarg;
break;
case 'f':
software_format = optarg;
break;
case 'r':
ctx.out_bitrate = strtof(optarg, &end);
if (optarg[0] == '\0' || end[0] != '\0') {
fprintf(stderr, "Bitrate is not a floating-pointer number\n");
return 1;
}
break;
default:
fprintf(stderr, "%s", usage);
return 1;
}
}
if (optind >= argc) {
fprintf(stderr, "Missing destination file argument\n");
fprintf(stderr, "%s", usage);
return 1;
}
ctx.out_filename = argv[optind];
ctx.class = &((AVClass){
.class_name = "dmabuf-capture",
.item_name = av_default_item_name,
.version = LIBAVUTIL_VERSION_INT,
});
int err = init(&ctx);
if (err) {
goto end;
}
struct wayland_output *o, *tmp_o;
wl_list_for_each_reverse_safe(o, tmp_o, &ctx.output_list, link) {
printf("Capturable output: %s Model: %s: ID: %i\n",
o->make, o->model, o->id);
}
o = find_output(&ctx, NULL, output_id);
if (!o) {
printf("Unable to find output with ID %d\n", output_id);
return 1;
}
ctx.target_output = o->output;
ctx.with_cursor = true;
ctx.hw_device_type = av_hwdevice_find_type_by_name(hw_device_type);
ctx.software_format = av_get_pix_fmt(software_format);
av_dict_set(&ctx.encoder_opts, "preset", "veryfast", 0);
err = main_loop(&ctx);
if (err) {
goto end;
}
end:
uninit(&ctx);
return err;
}
static void uninit(struct capture_context *ctx) {
struct wayland_output *output, *tmp_o;
wl_list_for_each_safe(output, tmp_o, &ctx->output_list, link) {
remove_output(output);
}
if (ctx->export_manager) {
zwlr_export_dmabuf_manager_v1_destroy(ctx->export_manager);
}
free_fifo(&ctx->vid_frames);
av_buffer_unref(&ctx->drm_frames_ref);
av_buffer_unref(&ctx->drm_device_ref);
av_buffer_unref(&ctx->mapped_frames_ref);
av_buffer_unref(&ctx->mapped_device_ref);
av_dict_free(&ctx->encoder_opts);
avcodec_close(ctx->avctx);
if (ctx->avf) {
avio_closep(&ctx->avf->pb);
}
avformat_free_context(ctx->avf);
}

489
examples/relative-pointer-unstable-v1.c
View File

@ -1,489 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <GLES2/gl2.h>
#include <linux/input-event-codes.h>
#include <wayland-egl.h>
#include "egl_common.h"
#include "pointer-constraints-unstable-v1-client-protocol.h"
#include "relative-pointer-unstable-v1-client-protocol.h"
#include "xdg-shell-client-protocol.h"
/**
* structs storing global state
*
* These are passed around as user data in the wayland globals.
*/
struct egl_info {
struct wl_egl_window *egl_window;
struct wlr_egl_surface *egl_surface;
uint32_t width;
uint32_t height;
struct wl_surface *surface;
struct wl_callback *frame_callback;
};
struct window {
struct egl_info *egl_info;
struct wl_pointer *pointer;
struct zwp_locked_pointer_v1 *locked_pointer;
struct zwp_relative_pointer_v1 *relative_pointer;
int32_t pointer_x, pointer_y;
uint32_t last_draw;
};
/**
* surface handling and helpers
*
* draw_cursor and draw_relative_cursor draw a small 5px by 5px box around the
* cursor and relative motion coordinates respectively. draw_background colors
* the background black.
*
* The functions are somewhat duplicated, but it doesn't really matter.
*/
static void surface_callback_handle_done(void *data,
struct wl_callback *callback, uint32_t time) {
wl_callback_destroy(callback);
struct egl_info *e = data;
e->frame_callback = NULL;
}
static struct wl_callback_listener surface_callback_listener = {
.done = surface_callback_handle_done,
};
static void draw_init(struct egl_info *e) {
eglMakeCurrent(egl_display, e->egl_surface,
e->egl_surface, egl_context);
glViewport(0, 0, e->width, e->height);
}
static void draw_cursor(struct egl_info *e, int32_t x, int32_t y) {
glEnable(GL_SCISSOR_TEST);
glScissor(x, e->height - y, 5, 5);
glClearColor(1.0f, 1.0f, 1.0f, 1.0f); /* white */
glClear(GL_COLOR_BUFFER_BIT);
glDisable(GL_SCISSOR_TEST);
}
static void draw_relative_cursor(struct egl_info *e, int32_t x, int32_t y) {
glEnable(GL_SCISSOR_TEST);
glScissor(x, e->height - y, 5, 5);
glClearColor(1.0f, 0.0f, 0.0f, 1.0f); /* red */
glClear(GL_COLOR_BUFFER_BIT);
glDisable(GL_SCISSOR_TEST);
}
static void draw_background(struct egl_info *e) {
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); /* black */
glClear(GL_COLOR_BUFFER_BIT);
}
static void draw_end(struct egl_info *e) {
e->frame_callback = wl_surface_frame(e->surface);
wl_callback_add_listener(e->frame_callback, &surface_callback_listener, e);
eglSwapBuffers(egl_display, e->egl_surface);
}
/**
* registry and globals handling
*/
static struct wl_compositor *compositor = NULL;
static struct wl_seat *seat = NULL;
static struct xdg_wm_base *wm_base = NULL;
static struct zwp_pointer_constraints_v1 *pointer_constraints = NULL;
static struct zwp_relative_pointer_manager_v1 *relative_pointer_manager = NULL;
static void registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
if (strcmp(interface, wl_compositor_interface.name) == 0) {
compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, version);
} else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
wm_base = wl_registry_bind(registry, name,
&xdg_wm_base_interface, version);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
seat = wl_registry_bind(registry, name,
&wl_seat_interface, version);
} else if (strcmp(interface, zwp_pointer_constraints_v1_interface.name) == 0) {
pointer_constraints = wl_registry_bind(registry, name,
&zwp_pointer_constraints_v1_interface, version);
} else if (strcmp(interface, zwp_relative_pointer_manager_v1_interface.name) == 0) {
relative_pointer_manager = wl_registry_bind(registry, name,
&zwp_relative_pointer_manager_v1_interface, version);
}
}
static void registry_handle_global_remove(void *data, struct wl_registry *registry,
uint32_t time) {
/* This space intentionally left blank */
}
static const struct wl_registry_listener registry_listener = {
.global = registry_handle_global,
.global_remove = registry_handle_global_remove,
};
/**
* xdg_surface handling
*/
static void xdg_surface_handle_configure(void *data,
struct xdg_surface *xdg_surface, uint32_t serial) {
struct egl_info *e = data;
xdg_surface_ack_configure(xdg_surface, serial);
wl_egl_window_resize(e->egl_window, e->width, e->height, 0, 0);
draw_init(e);
draw_background(e);
draw_end(e);
}
static const struct xdg_surface_listener xdg_surface_listener = {
.configure = xdg_surface_handle_configure,
};
/**
* xdg_toplevel handling
*/
static void xdg_toplevel_handle_configure(void *data,
struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height,
struct wl_array *states) {
struct egl_info *e = data;
// TODO: Why do we get 0,0 on initialization here? (in rootston)
if (width == 0 && height == 0) {
return;
}
e->width = width;
e->height = height;
}
static void xdg_toplevel_handle_close(void *data,
struct xdg_toplevel *xdg_toplevel) {
egl_finish();
exit(EXIT_SUCCESS);
}
static const struct xdg_toplevel_listener xdg_toplevel_listener = {
.configure = xdg_toplevel_handle_configure,
.close = xdg_toplevel_handle_close,
};
/**
* zwp_locked_pointer handling
*
* Pointer unlocks need to be handled properly since the relative pointer needs
* to be released as well. Unlocks happen when the focus is changed, for
* example.
*/
static void locked_pointer_handle_locked(void *data,
struct zwp_locked_pointer_v1 *zwp_locked_pointer_v1) {
/* This space intentionally left blank */
}
static void locked_pointer_handle_unlocked(void *data,
struct zwp_locked_pointer_v1 *zwp_locked_pointer_v1) {
struct window *w = data;
/* The locked pointer doesn't need to be destroyed since it was oneshot */
w->locked_pointer = NULL;
if (w->relative_pointer) {
/* Destroy the relative pointer */
zwp_relative_pointer_v1_destroy(w->relative_pointer);
w->relative_pointer = NULL;
}
draw_init(w->egl_info);
draw_background(w->egl_info);
draw_end(w->egl_info);
}
static const struct zwp_locked_pointer_v1_listener locked_pointer_listener = {
.locked = locked_pointer_handle_locked,
.unlocked = locked_pointer_handle_unlocked,
};
/**
* zwp_relative_pointer handling
*
* Handling relative_motion events is the meat of the code. The handler simply
* tries to indicate what the deltas look like.
*/
static void relative_pointer_handle_relative_motion(void *data,
struct zwp_relative_pointer_v1 *zwp_relative_pointer_v1,
uint32_t utime_hi, uint32_t utime_lo,
wl_fixed_t dx, wl_fixed_t dy,
wl_fixed_t dx_unaccel, wl_fixed_t dy_unaccel) {
struct window *w = data;
/**
* This renders the last location of the pointer (before it as locked), as
* well as what the position would have been after the given relative
* motion. Note that, if the device sends absolute motion events, the
* cursor location after relative motion is always identical to the actual
* cursor position.
*/
uint64_t utime = (((uint64_t) utime_hi << 32) + utime_lo) / 1000;
if (utime - w->last_draw > 30 && w->egl_info->frame_callback == NULL) {
w->last_draw = utime;
struct egl_info *e = w->egl_info;
draw_init(e);
draw_background(e);
draw_cursor(e, w->pointer_x, w->pointer_y);
draw_relative_cursor(e, w->pointer_x + wl_fixed_to_int(dx),
w->pointer_y + wl_fixed_to_int(dy));
draw_end(e);
}
}
static const struct zwp_relative_pointer_v1_listener relative_pointer_listener = {
.relative_motion = relative_pointer_handle_relative_motion,
};
/**
* wl_pointer handling
*
* The client toggles between locking the pointer and receiving relative motion
* events, and releasing the locked pointer and falling back to normal motion
* events, on a mouse button one (left mouse button) click.
*
* It additionally removes the cursor image, and indicates the pointer location
* via a small white box.
*/
static void pointer_handle_button(void *data, struct wl_pointer *pointer,
uint32_t serial, uint32_t time, uint32_t button, uint32_t state_w) {
struct window *w = data;
struct egl_info *e = w->egl_info;
if (button == BTN_LEFT && state_w == WL_POINTER_BUTTON_STATE_PRESSED) {
if (w->locked_pointer == NULL && w->relative_pointer == NULL) {
/* Get a locked pointer and add listener */
w->locked_pointer = zwp_pointer_constraints_v1_lock_pointer(
pointer_constraints, w->egl_info->surface, w->pointer, NULL,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_ONESHOT);
zwp_locked_pointer_v1_add_listener(w->locked_pointer,
&locked_pointer_listener, w);
/* Get relative pointer and add listener */
w->relative_pointer = zwp_relative_pointer_manager_v1_get_relative_pointer(
relative_pointer_manager, w->pointer);
zwp_relative_pointer_v1_add_listener(w->relative_pointer,
&relative_pointer_listener, w);
/* Commit the surface and render */
wl_surface_commit(e->surface);
draw_init(e);
draw_background(e);
draw_cursor(e, w->pointer_x, w->pointer_y);
draw_end(e);
} else if (w->locked_pointer && w->relative_pointer) {
/* Destroy the locked pointer */
zwp_locked_pointer_v1_destroy(w->locked_pointer);
w->locked_pointer = NULL;
/* Destroy the relative pointer */
zwp_relative_pointer_v1_destroy(w->relative_pointer);
w->relative_pointer = NULL;
/* Render */
draw_init(e);
draw_background(e);
draw_cursor(e, w->pointer_x, w->pointer_y);
draw_end(e);
} else {
fprintf(stderr, "Unknown state!\n");
exit(EXIT_FAILURE);
}
}
}
static void pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface,
wl_fixed_t surface_x, wl_fixed_t surface_y) {
struct window *w = data;
wl_pointer_set_cursor(w->pointer, serial, NULL, 0, 0);
}
static void pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface) {
/* This space intentionally left blank */
}
static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
struct window *w = data;
struct egl_info *e = w->egl_info;
w->pointer_x = wl_fixed_to_int(surface_x);
w->pointer_y = wl_fixed_to_int(surface_y);
if (time - w->last_draw > 30 && e->frame_callback == NULL) {
w->last_draw = time;
draw_init(e);
draw_background(e);
draw_cursor(e, w->pointer_x, w->pointer_y);
draw_end(e);
}
}
static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
uint32_t time, uint32_t axis, wl_fixed_t value) {
/* This space intentionally left blank */
}
static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer) {
/* This space intentionally left blank */
}
static void pointer_handle_axis_source(void *data,
struct wl_pointer *wl_pointer, uint32_t axis_source) {
/* This space intentionally left blank */
}
static void pointer_handle_axis_stop(void *data,
struct wl_pointer *wl_pointer, uint32_t time, uint32_t axis) {
/* This space intentionally left blank */
}
static void pointer_handle_axis_discrete(void *data,
struct wl_pointer *wl_pointer, uint32_t axis, int32_t discrete) {
/* This space intentionally left blank */
}
static const struct wl_pointer_listener pointer_listener = {
.enter = pointer_handle_enter,
.leave = pointer_handle_leave,
.motion = pointer_handle_motion,
.button = pointer_handle_button,
.axis = pointer_handle_axis,
.frame = pointer_handle_frame,
.axis_source = pointer_handle_axis_source,
.axis_stop = pointer_handle_axis_stop,
.axis_discrete = pointer_handle_axis_discrete,
};
/**
* relative-pointer:
*
* This client servers as an example for the relative-pointer-v1 protocol, and
* to some extent the pointer-constraints protocol as well (the locked_pointer
* interface).
*
* The intended behavior is the following. In the default state, the client
* shows a black background, and renders the pointer location as a small white
* box. No cursor is shown. In the locked state, the pointer is locked and the
* client only listens for relative motion events, which are rendered relative
* to the last unlocked pointer location by a small red box. Clicking with the
* left mouse button toggles the state.
*
* Most of the code is standard. The interesting stuff happens in "wl_pointer
* handling" (toggling states), and "zwp_relative_pointer handling" (rendering
* relative motion events).
*/
int main(int argc, char **argv) {
/* Connect to the display */
struct wl_display *display = wl_display_connect(NULL);
if (display == NULL) {
fprintf(stderr, "Could not connect to a Wayland display\n");
return EXIT_FAILURE;
}
/* Get the registry and set listeners */
struct wl_registry *registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, NULL);
wl_display_roundtrip(display);
/* Check that all the global interfaces were captured */
if (compositor == NULL) {
fprintf(stderr, "wl_compositor not available\n");
return EXIT_FAILURE;
}
if (seat == NULL) {
fprintf(stderr, "wl_seat not available\n");
return EXIT_FAILURE;
}
if (wm_base == NULL) {
fprintf(stderr, "xdg_wm_base not available\n");
return EXIT_FAILURE;
}
if (pointer_constraints == NULL) {
fprintf(stderr, "zwp_pointer_constraints_v1 not available\n");
return EXIT_FAILURE;
}
if (relative_pointer_manager == NULL) {
fprintf(stderr, "zwp_relative_pointer_manager_v1 not available\n");
return EXIT_FAILURE;
}
/* Initialize EGL context */
struct egl_info *e = calloc(1, sizeof(*e));
e->width = e->height = 512;
egl_init(display);
/* Create the surface and xdg_toplevels, and set listeners */
struct wl_surface *surface = wl_compositor_create_surface(compositor);
struct xdg_surface *xdg_surface =
xdg_wm_base_get_xdg_surface(wm_base, surface);
struct xdg_toplevel *xdg_toplevel = xdg_surface_get_toplevel(xdg_surface);
xdg_surface_add_listener(xdg_surface, &xdg_surface_listener, e);
xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, e);
/* Create the egl window and surface */
wl_surface_commit(surface);
e->egl_window = wl_egl_window_create(surface, e->width, e->height);
e->egl_surface = eglCreatePlatformWindowSurfaceEXT(
egl_display, egl_config, e->egl_window, NULL);
e->surface = surface;
wl_display_roundtrip(display);
/* Setup global state and render */
struct window *w = calloc(1, sizeof(*w));
w->egl_info = e;
draw_init(e);
draw_background(e);
draw_end(e);
/* Setup the pointer */
struct wl_pointer *pointer = wl_seat_get_pointer(seat);
wl_pointer_add_listener(pointer, &pointer_listener, w);
w->pointer = pointer;
/* Run display */
while (wl_display_dispatch(display) != -1) {
/* This space intentionally left blank */
}
return EXIT_SUCCESS;
}