examples/dmabuf-capture: use getopt
This makes it a little bit less annoying to provide the right arguments. All options have reasonable defaults.
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@ -205,10 +205,11 @@ static void remove_output(struct wayland_output *out) {
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}
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}
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static struct wayland_output *find_output(struct capture_context *ctx,
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static struct wayland_output *find_output(struct capture_context *ctx,
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struct wl_output *out, uint32_t id) {
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struct wl_output *out, int id) {
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struct wayland_output *output, *tmp;
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struct wayland_output *output, *tmp;
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wl_list_for_each_safe(output, tmp, &ctx->output_list, link) {
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wl_list_for_each_safe(output, tmp, &ctx->output_list, link) {
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if ((output->output == out) || (output->id == id)) {
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if (output->output == out || (id >= 0 && output->id == (uint32_t)id)
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|| id == -1) {
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return output;
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return output;
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}
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}
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}
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}
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@ -766,16 +767,77 @@ static int init(struct capture_context *ctx) {
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static void uninit(struct capture_context *ctx);
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static void uninit(struct capture_context *ctx);
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static const char usage[] = "usage: dmabuf-capture [options...] <destination file path>\n"
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" -o <output ID>\n"
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" -t <hardware device type>\n"
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" -d <device path>\n"
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" -e <encoder>\n"
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" -f <pixel format>\n"
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" -r <bitrate in Mbps>\n"
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"\n"
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"Example:\n"
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" dmabuf-capture -o 32 -t vaapi -d /dev/dri/renderD129 \\\n"
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" -e libx264 -f nv12 -r 12 recording.mkv\n";
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int main(int argc, char *argv[]) {
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int main(int argc, char *argv[]) {
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int err;
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struct capture_context ctx = {
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struct capture_context ctx = { 0 };
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.hardware_device = "/dev/dri/renderD128",
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.encoder_name = "libx264",
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.out_bitrate = 12,
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};
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int output_id = -1;
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const char *hw_device_type = "vaapi";
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const char *software_format = "nv12";
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int opt;
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while ((opt = getopt(argc, argv, "ho:t:d:e:f:r:")) != -1) {
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char *end;
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switch (opt) {
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case 'o':
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output_id = strtol(optarg, &end, 10);
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if (optarg[0] == '\0' || end[0] != '\0') {
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fprintf(stderr, "Output ID is not an integer\n");
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return 1;
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}
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break;
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case 't':
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hw_device_type = optarg;
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break;
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case 'd':
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ctx.hardware_device = optarg;
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break;
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case 'e':
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ctx.encoder_name = optarg;
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break;
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case 'f':
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software_format = optarg;
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break;
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case 'r':
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ctx.out_bitrate = strtof(optarg, &end);
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if (optarg[0] == '\0' || end[0] != '\0') {
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fprintf(stderr, "Bitrate is not a floating-pointer number\n");
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return 1;
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}
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break;
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default:
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fprintf(stderr, "%s", usage);
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return 1;
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}
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}
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if (optind >= argc) {
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fprintf(stderr, "Missing destination file argument\n");
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fprintf(stderr, "%s", usage);
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return 1;
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}
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ctx.out_filename = argv[optind];
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ctx.class = &((AVClass){
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ctx.class = &((AVClass){
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.class_name = "dmabuf-capture",
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.class_name = "dmabuf-capture",
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.item_name = av_default_item_name,
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.item_name = av_default_item_name,
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.version = LIBAVUTIL_VERSION_INT,
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.version = LIBAVUTIL_VERSION_INT,
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});
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});
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err = init(&ctx);
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int err = init(&ctx);
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if (err) {
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if (err) {
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goto end;
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goto end;
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}
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}
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@ -786,31 +848,16 @@ int main(int argc, char *argv[]) {
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o->make, o->model, o->id);
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o->make, o->model, o->id);
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}
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}
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if (argc != 8) {
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o = find_output(&ctx, NULL, output_id);
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printf("Invalid number of arguments! Usage and example:\n"
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"./dmabuf-capture <source id> <hardware device type> <device> "
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"<encoder name> <pixel format> <bitrate in Mbps> <file path>\n"
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"./dmabuf-capture 0 vaapi /dev/dri/renderD129 libx264 nv12 12 "
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"dmabuf_recording_01.mkv\n");
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return 1;
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}
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const int o_id = strtol(argv[1], NULL, 10);
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o = find_output(&ctx, NULL, o_id);
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if (!o) {
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if (!o) {
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printf("Unable to find output with ID %i!\n", o_id);
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printf("Unable to find output with ID %d\n", output_id);
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return 1;
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return 1;
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}
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}
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ctx.target_output = o->output;
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ctx.target_output = o->output;
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ctx.with_cursor = true;
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ctx.with_cursor = true;
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ctx.hw_device_type = av_hwdevice_find_type_by_name(argv[2]);
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ctx.hw_device_type = av_hwdevice_find_type_by_name(hw_device_type);
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ctx.hardware_device = argv[3];
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ctx.software_format = av_get_pix_fmt(software_format);
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ctx.encoder_name = argv[4];
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ctx.software_format = av_get_pix_fmt(argv[5]);
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ctx.out_bitrate = strtof(argv[6], NULL);
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ctx.out_filename = argv[7];
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av_dict_set(&ctx.encoder_opts, "preset", "veryfast", 0);
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av_dict_set(&ctx.encoder_opts, "preset", "veryfast", 0);
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