C++ (Cpp) obs_encoder_get_sample_rate Examples

Example #1

File: obs-ffmpeg-mux.c Project: SpaderQueen/Gifscreen1

static void add_audio_encoder_params(struct dstr *cmd, obs_encoder_t *aencoder)
{
	obs_data_t *settings = obs_encoder_get_settings(aencoder);
	int bitrate = (int)obs_data_get_int(settings, "bitrate");
	audio_t *audio = obs_get_audio();
	struct dstr name = {0};

	obs_data_release(settings);

	dstr_copy(&name, obs_encoder_get_name(aencoder));
	dstr_replace(&name, "\"", "\"\"");

	dstr_catf(cmd, "\"%s\" %d %d %d ",
			name.array,
			bitrate,
			(int)obs_encoder_get_sample_rate(aencoder),
			(int)audio_output_get_channels(audio));

	dstr_free(&name);
}

Example #2

File: flv-mux.c Project: Jack0r/obs-studio

static bool build_flv_meta_data(obs_output_t *context,
		uint8_t **output, size_t *size, size_t a_idx)
{
	obs_encoder_t *vencoder = obs_output_get_video_encoder(context);
	obs_encoder_t *aencoder = obs_output_get_audio_encoder(context, a_idx);
	video_t       *video    = obs_encoder_video(vencoder);
	audio_t       *audio    = obs_encoder_audio(aencoder);
	char buf[4096];
	char *enc = buf;
	char *end = enc+sizeof(buf);
	struct dstr encoder_name = {0};

	if (a_idx > 0 && !aencoder)
		return false;

	enc_str(&enc, end, "onMetaData");

	*enc++ = AMF_ECMA_ARRAY;
	enc    = AMF_EncodeInt32(enc, end, a_idx == 0 ? 14 : 9);

	enc_num_val(&enc, end, "duration", 0.0);
	enc_num_val(&enc, end, "fileSize", 0.0);

	if (a_idx == 0) {
		enc_num_val(&enc, end, "width",
				(double)obs_encoder_get_width(vencoder));
		enc_num_val(&enc, end, "height",
				(double)obs_encoder_get_height(vencoder));

		enc_str_val(&enc, end, "videocodecid", "avc1");
		enc_num_val(&enc, end, "videodatarate",
				encoder_bitrate(vencoder));
		enc_num_val(&enc, end, "framerate",
				video_output_get_frame_rate(video));
	}

	enc_str_val(&enc, end, "audiocodecid", "mp4a");
	enc_num_val(&enc, end, "audiodatarate", encoder_bitrate(aencoder));
	enc_num_val(&enc, end, "audiosamplerate",
			(double)obs_encoder_get_sample_rate(aencoder));
	enc_num_val(&enc, end, "audiosamplesize", 16.0);
	enc_num_val(&enc, end, "audiochannels",
			(double)audio_output_get_channels(audio));

	enc_bool_val(&enc, end, "stereo",
			audio_output_get_channels(audio) == 2);
	enc_bool_val(&enc, end, "2.1",
			audio_output_get_channels(audio) == 3);
	enc_bool_val(&enc, end, "3.1",
			audio_output_get_channels(audio) == 4);
	enc_bool_val(&enc, end, "4.0",
			audio_output_get_channels(audio) == 4);
	enc_bool_val(&enc, end, "4.1",
			audio_output_get_channels(audio) == 5);
	enc_bool_val(&enc, end, "5.1",
			audio_output_get_channels(audio) == 6);
	enc_bool_val(&enc, end, "7.1",
			audio_output_get_channels(audio) == 8);

	dstr_printf(&encoder_name, "%s (libobs version ",
			MODULE_NAME);

#ifdef HAVE_OBSCONFIG_H
	dstr_cat(&encoder_name, OBS_VERSION);
#else
	dstr_catf(&encoder_name, "%d.%d.%d",
			LIBOBS_API_MAJOR_VER,
			LIBOBS_API_MINOR_VER,
			LIBOBS_API_PATCH_VER);
#endif

	dstr_cat(&encoder_name, ")");

	enc_str_val(&enc, end, "encoder", encoder_name.array);
	dstr_free(&encoder_name);

	*enc++  = 0;
	*enc++  = 0;
	*enc++  = AMF_OBJECT_END;

	*size   = enc-buf;
	*output = bmemdup(buf, *size);
	return true;
}