Skip to content
Permalink
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
852 lines (694 sloc) 21.4 KB
#define _POSIX_C_SOURCE 199309L
#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, uint32_t id) {
struct wayland_output *output, *tmp;
wl_list_for_each_safe(output, tmp, &ctx->output_list, link) {
if ((output->output == out) || (output->id == id)) {
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);
}
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_init_packet(&pkt);
int ret = avcodec_receive_packet(ctx->avctx, &pkt);
if (ret == AVERROR(EAGAIN)) {
break;
} else if (ret == AVERROR_EOF) {
av_log(ctx, AV_LOG_INFO, "Encoder flushed!\n");
goto end;
} else if (ret) {
av_log(ctx, AV_LOG_ERROR, "Error encoding: %s!\n",
av_err2str(ret));
err = ret;
goto end;
}
pkt.stream_index = 0;
err = av_interleaved_write_frame(ctx->avf, &pkt);
av_packet_unref(&pkt);
if (err) {
av_log(ctx, AV_LOG_ERROR, "Writing packet fail: %s!\n",
av_err2str(err));
goto end;
}
};
av_log(ctx, AV_LOG_INFO, "Encoded frame %i (%i in queue)\n",
ctx->avctx->frame_number, 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 */
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->video_codec = out_codec->id;
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;
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);
wl_display_roundtrip(ctx->display);
wl_display_dispatch(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);
int main(int argc, char *argv[]) {
int err;
struct capture_context ctx = { 0 };
ctx.class = &((AVClass) {
.class_name = "dmabuf-capture",
.item_name = av_default_item_name,
.version = LIBAVUTIL_VERSION_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);
}
if (argc != 8) {
printf("Invalid number of arguments! Usage and example:\n"
"./dmabuf-capture <source id> <hardware device type> <device> "
"<encoder name> <pixel format> <bitrate in Mbps> <file path>\n"
"./dmabuf-capture 0 vaapi /dev/dri/renderD129 libx264 nv12 12 "
"dmabuf_recording_01.mkv\n");
return 1;
}
const int o_id = strtol(argv[1], NULL, 10);
o = find_output(&ctx, NULL, o_id);
if (!o) {
printf("Unable to find output with ID %i!\n", o_id);
return 1;
}
ctx.target_output = o->output;
ctx.with_cursor = true;
ctx.hw_device_type = av_hwdevice_find_type_by_name(argv[2]);
ctx.hardware_device = argv[3];
ctx.encoder_name = argv[4];
ctx.software_format = av_get_pix_fmt(argv[5]);
ctx.out_bitrate = strtof(argv[6], NULL);
ctx.out_filename = argv[7];
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);
}
You can’t perform that action at this time.