static void build_command_line(struct ffmpeg_muxer *stream, struct dstr *cmd)
{
obs_encoder_t *vencoder = obs_output_get_video_encoder(stream->output);
obs_encoder_t *aencoders[MAX_AUDIO_MIXES];
int num_tracks = 0;
for (;;) {
obs_encoder_t *aencoder = obs_output_get_audio_encoder(
stream->output, num_tracks);
if (!aencoder)
break;
aencoders[num_tracks] = aencoder;
num_tracks++;
}
dstr_init_move_array(cmd, obs_module_file(FFMPEG_MUX));
dstr_insert_ch(cmd, 0, '\"');
dstr_cat(cmd, "\" \"");
dstr_cat_dstr(cmd, &stream->path);
dstr_catf(cmd, "\" %d %d ", vencoder ? 1 : 0, num_tracks);
if (vencoder)
add_video_encoder_params(stream, cmd, vencoder);
if (num_tracks) {
dstr_cat(cmd, "aac ");
for (int i = 0; i < num_tracks; i++) {
add_audio_encoder_params(cmd, aencoders[i]);
}
}
}
static bool send_audio_header(struct rtmp_stream *stream, size_t idx,
bool *next)
{
obs_output_t *context = stream->output;
obs_encoder_t *aencoder = obs_output_get_audio_encoder(context, idx);
uint8_t *header;
struct encoder_packet packet = {
.type = OBS_ENCODER_AUDIO,
.timebase_den = 1
};
if (!aencoder) {
*next = false;
return true;
}
obs_encoder_get_extra_data(aencoder, &header, &packet.size);
packet.data = bmemdup(header, packet.size);
return send_packet(stream, &packet, true, idx) >= 0;
}
static bool send_video_header(struct rtmp_stream *stream)
{
obs_output_t *context = stream->output;
obs_encoder_t *vencoder = obs_output_get_video_encoder(context);
uint8_t *header;
size_t size;
struct encoder_packet packet = {
.type = OBS_ENCODER_VIDEO,
.timebase_den = 1,
.keyframe = true
};
obs_encoder_get_extra_data(vencoder, &header, &size);
packet.size = obs_parse_avc_header(&packet.data, header, size);
return send_packet(stream, &packet, true, 0) >= 0;
}
static inline bool send_headers(struct rtmp_stream *stream)
{
stream->sent_headers = true;
size_t i = 0;
bool next = true;
bool fail = false;
if (!send_audio_header(stream, i++, &next))
return false;
if (!send_video_header(stream))
return false;
while (next) {
if (!send_audio_header(stream, i++, &next))
return false;
}
return true;
}
static void send_audio_header(struct rtmp_stream *stream)
{
obs_output_t context = stream->output;
obs_encoder_t aencoder = obs_output_get_audio_encoder(context);
uint8_t *header;
struct encoder_packet packet = {
.type = OBS_ENCODER_AUDIO,
.timebase_den = 1
};
obs_encoder_get_extra_data(aencoder, &header, &packet.size);
packet.data = bmemdup(header, packet.size);
send_packet(stream, &packet, true);
}
static void send_video_header(struct rtmp_stream *stream)
{
obs_output_t context = stream->output;
obs_encoder_t vencoder = obs_output_get_video_encoder(context);
uint8_t *header;
size_t size;
struct encoder_packet packet = {
.type = OBS_ENCODER_VIDEO,
.timebase_den = 1,
.keyframe = true
};
obs_encoder_get_extra_data(vencoder, &header, &size);
packet.size = obs_parse_avc_header(&packet.data, header, size);
send_packet(stream, &packet, true);
}
static void send_headers(struct rtmp_stream *stream)
{
#ifdef FILE_TEST
stream->test = os_fopen("D:\\bla.flv", "wb");
#endif
send_meta_data(stream);
send_audio_header(stream);
send_video_header(stream);
}
static void build_flv_meta_data(obs_output_t context,
uint8_t **output, size_t *size)
{
obs_encoder_t vencoder = obs_output_get_video_encoder(context);
obs_encoder_t aencoder = obs_output_get_audio_encoder(context);
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);
enc_str(&enc, end, "onMetaData");
*enc++ = AMF_ECMA_ARRAY;
enc = AMF_EncodeInt32(enc, end, 14);
enc_num_val(&enc, end, "duration", 0.0);
enc_num_val(&enc, end, "fileSize", 0.0);
enc_num_val(&enc, end, "width", (double)video_output_width(video));
enc_num_val(&enc, end, "height", (double)video_output_height(video));
enc_str_val(&enc, end, "videocodecid", "avc1");
enc_num_val(&enc, end, "videodatarate", encoder_bitrate(vencoder));
enc_num_val(&enc, end, "framerate", video_output_framerate(video));
enc_str_val(&enc, end, "audiocodecid", "mp4a");
enc_num_val(&enc, end, "audiodatarate", encoder_bitrate(aencoder));
enc_num_val(&enc, end, "audiosamplerate",
(double)audio_output_samplerate(audio));
enc_num_val(&enc, end, "audiosamplesize", 16.0);
enc_num_val(&enc, end, "audiochannels",
(double)audio_output_channels(audio));
enc_bool_val(&enc, end, "stereo", audio_output_channels(audio) == 2);
enc_str_val(&enc, end, "encoder", MODULE_NAME);
*enc++ = 0;
*enc++ = 0;
*enc++ = AMF_OBJECT_END;
*size = enc-buf;
*output = bmemdup(buf, *size);
}
static void write_audio_header(struct flv_output *stream)
{
obs_output_t *context = stream->output;
obs_encoder_t *aencoder = obs_output_get_audio_encoder(context, 0);
uint8_t *header;
struct encoder_packet packet = {
.type = OBS_ENCODER_AUDIO,
.timebase_den = 1
};
obs_encoder_get_extra_data(aencoder, &header, &packet.size);
packet.data = bmemdup(header, packet.size);
write_packet(stream, &packet, true);
}
static void write_video_header(struct flv_output *stream)
{
obs_output_t *context = stream->output;
obs_encoder_t *vencoder = obs_output_get_video_encoder(context);
uint8_t *header;
size_t size;
struct encoder_packet packet = {
.type = OBS_ENCODER_VIDEO,
.timebase_den = 1,
.keyframe = true
};
obs_encoder_get_extra_data(vencoder, &header, &size);
packet.size = obs_parse_avc_header(&packet.data, header, size);
write_packet(stream, &packet, true);
}
static void write_headers(struct flv_output *stream)
{
write_meta_data(stream);
write_audio_header(stream);
write_video_header(stream);
}
static bool write_packet(struct ffmpeg_muxer *stream,
struct encoder_packet *packet)
{
bool is_video = packet->type == OBS_ENCODER_VIDEO;
size_t ret;
struct ffm_packet_info info = {
.pts = packet->pts,
.dts = packet->dts,
.size = (uint32_t)packet->size,
.index = (int)packet->track_idx,
.type = is_video ? FFM_PACKET_VIDEO : FFM_PACKET_AUDIO,
.keyframe = packet->keyframe
};
ret = os_process_pipe_write(stream->pipe, (const uint8_t*)&info,
sizeof(info));
if (ret != sizeof(info)) {
warn("os_process_pipe_write for info structure failed");
signal_failure(stream);
return false;
}
ret = os_process_pipe_write(stream->pipe, packet->data, packet->size);
if (ret != packet->size) {
warn("os_process_pipe_write for packet data failed");
signal_failure(stream);
return false;
}
return true;
}
static bool send_audio_headers(struct ffmpeg_muxer *stream,
obs_encoder_t *aencoder, size_t idx)
{
struct encoder_packet packet = {
.type = OBS_ENCODER_AUDIO,
.timebase_den = 1,
.track_idx = idx
};
obs_encoder_get_extra_data(aencoder, &packet.data, &packet.size);
return write_packet(stream, &packet);
}
static bool send_video_headers(struct ffmpeg_muxer *stream)
{
obs_encoder_t *vencoder = obs_output_get_video_encoder(stream->output);
struct encoder_packet packet = {
.type = OBS_ENCODER_VIDEO,
.timebase_den = 1
};
obs_encoder_get_extra_data(vencoder, &packet.data, &packet.size);
return write_packet(stream, &packet);
}
static bool send_headers(struct ffmpeg_muxer *stream)
{
obs_encoder_t *aencoder;
size_t idx = 0;
if (!send_video_headers(stream))
return false;
do {
aencoder = obs_output_get_audio_encoder(stream->output, idx);
if (aencoder) {
if (!send_audio_headers(stream, aencoder, idx)) {
return false;
}
idx++;
}
} while (aencoder);
return true;
}
static void ffmpeg_mux_data(void *data, struct encoder_packet *packet)
{
struct ffmpeg_muxer *stream = data;
if (!stream->active)
return;
if (!stream->sent_headers) {
if (!send_headers(stream))
return;
stream->sent_headers = true;
}
write_packet(stream, packet);
}
static obs_properties_t *ffmpeg_mux_properties(void *unused)
{
UNUSED_PARAMETER(unused);
obs_properties_t *props = obs_properties_create();
obs_properties_add_text(props, "path",
obs_module_text("FilePath"),
OBS_TEXT_DEFAULT);
return props;
}
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;
}
static int init_send(struct rtmp_stream *stream)
{
int ret;
size_t idx = 0;
bool next = true;
#if defined(_WIN32)
adjust_sndbuf_size(stream, MIN_SENDBUF_SIZE);
#endif
reset_semaphore(stream);
ret = pthread_create(&stream->send_thread, NULL, send_thread, stream);
if (ret != 0) {
RTMP_Close(&stream->rtmp);
warn("Failed to create send thread");
return OBS_OUTPUT_ERROR;
}
if (stream->new_socket_loop) {
int one = 1;
#ifdef _WIN32
if (ioctlsocket(stream->rtmp.m_sb.sb_socket, FIONBIO, &one)) {
stream->rtmp.last_error_code = WSAGetLastError();
#else
if (ioctl(stream->rtmp.m_sb.sb_socket, FIONBIO, &one)) {
stream->rtmp.last_error_code = errno;
#endif
warn("Failed to set non-blocking socket");
return OBS_OUTPUT_ERROR;
}
os_event_reset(stream->send_thread_signaled_exit);
info("New socket loop enabled by user");
if (stream->low_latency_mode)
info("Low latency mode enabled by user");
if (stream->write_buf)
bfree(stream->write_buf);
int total_bitrate = 0;
obs_output_t *context = stream->output;
obs_encoder_t *vencoder = obs_output_get_video_encoder(context);
if (vencoder) {
obs_data_t *params = obs_encoder_get_settings(vencoder);
if (params) {
int bitrate = obs_data_get_int(params, "bitrate");
total_bitrate += bitrate;
obs_data_release(params);
}
}
obs_encoder_t *aencoder = obs_output_get_audio_encoder(context, 0);
if (aencoder) {
obs_data_t *params = obs_encoder_get_settings(aencoder);
if (params) {
int bitrate = obs_data_get_int(params, "bitrate");
total_bitrate += bitrate;
obs_data_release(params);
}
}
// to bytes/sec
int ideal_buffer_size = total_bitrate * 128;
if (ideal_buffer_size < 131072)
ideal_buffer_size = 131072;
stream->write_buf_size = ideal_buffer_size;
stream->write_buf = bmalloc(ideal_buffer_size);
#ifdef _WIN32
ret = pthread_create(&stream->socket_thread, NULL,
socket_thread_windows, stream);
#else
warn("New socket loop not supported on this platform");
return OBS_OUTPUT_ERROR;
#endif
if (ret != 0) {
RTMP_Close(&stream->rtmp);
warn("Failed to create socket thread");
return OBS_OUTPUT_ERROR;
}
stream->socket_thread_active = true;
stream->rtmp.m_bCustomSend = true;
stream->rtmp.m_customSendFunc = socket_queue_data;
stream->rtmp.m_customSendParam = stream;
}
os_atomic_set_bool(&stream->active, true);
while (next) {
if (!send_meta_data(stream, idx++, &next)) {
warn("Disconnected while attempting to connect to "
"server.");
set_output_error(stream);
return OBS_OUTPUT_DISCONNECTED;
}
}
obs_output_begin_data_capture(stream->output, 0);
return OBS_OUTPUT_SUCCESS;
}
#ifdef _WIN32
static void win32_log_interface_type(struct rtmp_stream *stream)
{
RTMP *rtmp = &stream->rtmp;
MIB_IPFORWARDROW route;
uint32_t dest_addr, source_addr;
char hostname[256];
HOSTENT *h;
if (rtmp->Link.hostname.av_len >= sizeof(hostname) - 1)
return;
strncpy(hostname, rtmp->Link.hostname.av_val, sizeof(hostname));
hostname[rtmp->Link.hostname.av_len] = 0;
h = gethostbyname(hostname);
if (!h)
return;
dest_addr = *(uint32_t*)h->h_addr_list[0];
if (rtmp->m_bindIP.addrLen == 0)
source_addr = 0;
else if (rtmp->m_bindIP.addr.ss_family == AF_INET)
source_addr = (*(struct sockaddr_in*)&rtmp->m_bindIP)
.sin_addr.S_un.S_addr;
else
return;
if (!GetBestRoute(dest_addr, source_addr, &route)) {
MIB_IFROW row;
memset(&row, 0, sizeof(row));
row.dwIndex = route.dwForwardIfIndex;
if (!GetIfEntry(&row)) {
uint32_t speed =row.dwSpeed / 1000000;
char *type;
struct dstr other = {0};
if (row.dwType == IF_TYPE_ETHERNET_CSMACD) {
type = "ethernet";
} else if (row.dwType == IF_TYPE_IEEE80211) {
type = "802.11";
} else {
dstr_printf(&other, "type %lu", row.dwType);
type = other.array;
}
info("Interface: %s (%s, %lu mbps)", row.bDescr, type,
speed);
dstr_free(&other);
}
}
}
