void video_stream_change_camera(VideoStream *stream, MSWebCam *cam){
if (stream->ticker && stream->source){
#ifdef ENABLE_UDT
if (stream->udt) ms_ticker_detach (stream->ticker, stream->udt);
#endif // ENABLE_UDT
ms_ticker_detach(stream->ticker,stream->source);
/*unlink source filters and subsequent post processin filters */
ms_filter_unlink (stream->source, 0, stream->pixconv, 0);
ms_filter_unlink (stream->pixconv, 0, stream->sizeconv, 0);
ms_filter_unlink (stream->sizeconv, 0, stream->tee, 0);
/*destroy the filters */
ms_filter_destroy(stream->source);
ms_filter_destroy(stream->pixconv);
ms_filter_destroy(stream->sizeconv);
/*re create new ones and configure them*/
stream->source = ms_web_cam_create_reader(cam);
configure_video_source(stream);
ms_filter_link (stream->source, 0, stream->pixconv, 0);
ms_filter_link (stream->pixconv, 0, stream->sizeconv, 0);
ms_filter_link (stream->sizeconv, 0, stream->tee, 0);
ms_ticker_attach(stream->ticker,stream->source);
}
}
void video_stream_change_camera(VideoStream *stream, MSWebCam *cam){
bool_t keep_source=(cam==stream->cam);
bool_t encoder_has_builtin_converter = (!stream->pixconv && !stream->sizeconv);
if (stream->ms.ticker && stream->source){
ms_ticker_detach(stream->ms.ticker,stream->source);
/*unlink source filters and subsequent post processin filters */
if (encoder_has_builtin_converter || (stream->source_performs_encoding == TRUE)) {
ms_filter_unlink(stream->source, 0, stream->tee, 0);
} else {
ms_filter_unlink (stream->source, 0, stream->pixconv, 0);
ms_filter_unlink (stream->pixconv, 0, stream->sizeconv, 0);
ms_filter_unlink (stream->sizeconv, 0, stream->tee, 0);
}
/*destroy the filters */
if (!keep_source) ms_filter_destroy(stream->source);
if (!encoder_has_builtin_converter && (stream->source_performs_encoding == FALSE)) {
ms_filter_destroy(stream->pixconv);
ms_filter_destroy(stream->sizeconv);
}
/*re create new ones and configure them*/
if (!keep_source) stream->source = ms_web_cam_create_reader(cam);
stream->cam=cam;
/* update orientation */
if (stream->source){
ms_filter_call_method(stream->source,MS_VIDEO_CAPTURE_SET_DEVICE_ORIENTATION,&stream->device_orientation);
if (!stream->display_filter_auto_rotate_enabled)
ms_filter_call_method(stream->source,MS_VIDEO_DISPLAY_SET_DEVICE_ORIENTATION,&stream->device_orientation);
}
if (stream->output && stream->display_filter_auto_rotate_enabled) {
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_SET_DEVICE_ORIENTATION,&stream->device_orientation);
}
configure_video_source(stream);
if (encoder_has_builtin_converter || (stream->source_performs_encoding == TRUE)) {
ms_filter_link (stream->source, 0, stream->tee, 0);
}
else {
ms_filter_link (stream->source, 0, stream->pixconv, 0);
ms_filter_link (stream->pixconv, 0, stream->sizeconv, 0);
ms_filter_link (stream->sizeconv, 0, stream->tee, 0);
}
ms_ticker_attach(stream->ms.ticker,stream->source);
}
}
int video_stream_start (VideoStream *stream, RtpProfile *profile, const char *rem_rtp_ip, int rem_rtp_port,
const char *rem_rtcp_ip, int rem_rtcp_port, int payload, int jitt_comp, MSWebCam *cam){
PayloadType *pt;
RtpSession *rtps=stream->ms.session;
MSPixFmt format;
MSVideoSize disp_size;
int tmp;
JBParameters jbp;
const int socket_buf_size=2000000;
if (cam==NULL){
cam=ms_web_cam_manager_get_default_cam (
ms_web_cam_manager_get());
}
pt=rtp_profile_get_payload(profile,payload);
if (pt==NULL){
ms_error("videostream.c: undefined payload type.");
return -1;
}
if ((cam != NULL) && (cam->desc->encode_to_mime_type != NULL) && (cam->desc->encode_to_mime_type(cam, pt->mime_type) == TRUE)) {
stream->source_performs_encoding = TRUE;
}
rtp_session_set_profile(rtps,profile);
if (rem_rtp_port>0) rtp_session_set_remote_addr_full(rtps,rem_rtp_ip,rem_rtp_port,rem_rtcp_ip,rem_rtcp_port);
rtp_session_set_payload_type(rtps,payload);
rtp_session_set_jitter_compensation(rtps,jitt_comp);
rtp_session_signal_connect(stream->ms.session,"payload_type_changed",
(RtpCallback)mediastream_payload_type_changed,(unsigned long)&stream->ms);
rtp_session_get_jitter_buffer_params(stream->ms.session,&jbp);
jbp.max_packets=1000;//needed for high resolution video
rtp_session_set_jitter_buffer_params(stream->ms.session,&jbp);
rtp_session_set_rtp_socket_recv_buffer_size(stream->ms.session,socket_buf_size);
rtp_session_set_rtp_socket_send_buffer_size(stream->ms.session,socket_buf_size);
if (stream->dir==VideoStreamSendRecv || stream->dir==VideoStreamSendOnly){
MSConnectionHelper ch;
/*plumb the outgoing stream */
if (rem_rtp_port>0) ms_filter_call_method(stream->ms.rtpsend,MS_RTP_SEND_SET_SESSION,stream->ms.session);
if (stream->source_performs_encoding == FALSE) {
stream->ms.encoder=ms_filter_create_encoder(pt->mime_type);
if ((stream->ms.encoder==NULL) ){
/* big problem: we don't have a registered codec for this payload...*/
ms_error("videostream.c: No encoder available for payload %i:%s.",payload,pt->mime_type);
return -1;
}
}
/* creates the filters */
stream->cam=cam;
stream->source = ms_web_cam_create_reader(cam);
stream->tee = ms_filter_new(MS_TEE_ID);
if (stream->source_performs_encoding == TRUE) {
stream->ms.encoder = stream->source; /* Consider the encoder is the source */
}
if (pt->normal_bitrate>0){
MSVideoConfiguration *vconf_list = NULL;
ms_message("Limiting bitrate of video encoder to %i bits/s",pt->normal_bitrate);
ms_filter_call_method(stream->ms.encoder, MS_VIDEO_ENCODER_GET_CONFIGURATION_LIST, &vconf_list);
if (vconf_list != NULL) {
MSVideoConfiguration vconf = ms_video_find_best_configuration_for_bitrate(vconf_list, pt->normal_bitrate);
ms_filter_call_method(stream->ms.encoder, MS_VIDEO_ENCODER_SET_CONFIGURATION, &vconf);
} else {
ms_filter_call_method(stream->ms.encoder, MS_FILTER_SET_BITRATE, &pt->normal_bitrate);
}
}
if (pt->send_fmtp){
ms_filter_call_method(stream->ms.encoder,MS_FILTER_ADD_FMTP,pt->send_fmtp);
}
if (stream->use_preview_window){
if (stream->rendercb==NULL){
stream->output2=ms_filter_new_from_name (stream->display_name);
}
}
configure_video_source (stream);
/* and then connect all */
ms_connection_helper_start(&ch);
ms_connection_helper_link(&ch, stream->source, -1, 0);
if (stream->pixconv) {
ms_connection_helper_link(&ch, stream->pixconv, 0, 0);
}
if (stream->sizeconv) {
ms_connection_helper_link(&ch, stream->sizeconv, 0, 0);
}
ms_connection_helper_link(&ch, stream->tee, 0, 0);
if (stream->source_performs_encoding == FALSE) {
ms_connection_helper_link(&ch, stream->ms.encoder, 0, 0);
}
ms_connection_helper_link(&ch, stream->ms.rtpsend, 0, -1);
if (stream->output2){
if (stream->preview_window_id!=0){
ms_filter_call_method(stream->output2, MS_VIDEO_DISPLAY_SET_NATIVE_WINDOW_ID,&stream->preview_window_id);
}
ms_filter_link(stream->tee,1,stream->output2,0);
}
}
if (stream->dir==VideoStreamSendRecv || stream->dir==VideoStreamRecvOnly){
MSConnectionHelper ch;
MSVideoDisplayDecodingSupport decoding_support;
if (stream->rendercb!=NULL){
stream->output=ms_filter_new(MS_EXT_DISPLAY_ID);
ms_filter_set_notify_callback(stream->output,ext_display_cb,stream);
}else{
stream->output=ms_filter_new_from_name (stream->display_name);
}
/* Don't allow null output */
if(stream->output == NULL) {
ms_fatal("No video display filter could be instantiated. Please check build-time configuration");
}
/* Check if the output filter can perform the decoding process */
decoding_support.mime_type = pt->mime_type;
decoding_support.supported = FALSE;
ms_filter_call_method(stream->output, MS_VIDEO_DISPLAY_SUPPORT_DECODING, &decoding_support);
stream->output_performs_decoding = decoding_support.supported;
/*plumb the incoming stream */
if (stream->output_performs_decoding == TRUE) {
stream->ms.decoder = stream->output; /* Consider the decoder is the output */
} else {
stream->ms.decoder=ms_filter_create_decoder(pt->mime_type);
if ((stream->ms.decoder==NULL) ){
/* big problem: we don't have a registered decoderfor this payload...*/
ms_error("videostream.c: No decoder available for payload %i:%s.",payload,pt->mime_type);
ms_filter_destroy(stream->output);
return -1;
}
}
ms_filter_set_notify_callback(stream->ms.decoder, event_cb, stream);
stream->ms.rtprecv = ms_filter_new (MS_RTP_RECV_ID);
ms_filter_call_method(stream->ms.rtprecv,MS_RTP_RECV_SET_SESSION,stream->ms.session);
if (stream->output_performs_decoding == FALSE) {
stream->jpegwriter=ms_filter_new(MS_JPEG_WRITER_ID);
if (stream->jpegwriter)
stream->tee2=ms_filter_new(MS_TEE_ID);
}
/* set parameters to the decoder*/
if (pt->send_fmtp){
ms_filter_call_method(stream->ms.decoder,MS_FILTER_ADD_FMTP,pt->send_fmtp);
}
if (pt->recv_fmtp!=NULL)
ms_filter_call_method(stream->ms.decoder,MS_FILTER_ADD_FMTP,(void*)pt->recv_fmtp);
/*force the decoder to output YUV420P */
format=MS_YUV420P;
ms_filter_call_method(stream->ms.decoder,MS_FILTER_SET_PIX_FMT,&format);
/*configure the display window */
if(stream->output != NULL) {
disp_size.width=MS_VIDEO_SIZE_CIF_W;
disp_size.height=MS_VIDEO_SIZE_CIF_H;
tmp=1;
ms_filter_call_method(stream->output,MS_FILTER_SET_VIDEO_SIZE,&disp_size);
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_ENABLE_AUTOFIT,&tmp);
ms_filter_call_method(stream->output,MS_FILTER_SET_PIX_FMT,&format);
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_SET_LOCAL_VIEW_MODE,&stream->corner);
if (stream->window_id!=0){
ms_filter_call_method(stream->output, MS_VIDEO_DISPLAY_SET_NATIVE_WINDOW_ID,&stream->window_id);
}
if (stream->display_filter_auto_rotate_enabled) {
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_SET_DEVICE_ORIENTATION,&stream->device_orientation);
}
}
/* and connect the filters */
ms_connection_helper_start (&ch);
ms_connection_helper_link (&ch,stream->ms.rtprecv,-1,0);
if (stream->output_performs_decoding == FALSE) {
ms_connection_helper_link (&ch,stream->ms.decoder,0,0);
}
if (stream->tee2){
ms_connection_helper_link (&ch,stream->tee2,0,0);
ms_filter_link(stream->tee2,1,stream->jpegwriter,0);
}
if (stream->output!=NULL)
ms_connection_helper_link (&ch,stream->output,0,-1);
/* the video source must be send for preview , if it exists*/
if (stream->tee!=NULL && stream->output!=NULL && stream->output2==NULL)
ms_filter_link(stream->tee,1,stream->output,1);
}
if (stream->dir == VideoStreamSendOnly) {
stream->ms.rtprecv = ms_filter_new (MS_RTP_RECV_ID);
ms_filter_call_method(stream->ms.rtprecv, MS_RTP_RECV_SET_SESSION, stream->ms.session);
stream->ms.voidsink = ms_filter_new(MS_VOID_SINK_ID);
ms_filter_link(stream->ms.rtprecv, 0, stream->ms.voidsink, 0);
}
/* create the ticker */
if (stream->ms.ticker==NULL) start_ticker(&stream->ms);
stream->ms.start_time=ms_time(NULL);
stream->ms.is_beginning=TRUE;
/* attach the graphs */
if (stream->source)
ms_ticker_attach (stream->ms.ticker, stream->source);
if (stream->ms.rtprecv)
ms_ticker_attach (stream->ms.ticker, stream->ms.rtprecv);
return 0;
}
int video_stream_start (VideoStream *stream, RtpProfile *profile, const char *remip, int remport,
int rem_rtcp_port, int payload, int jitt_comp, MSWebCam *cam){
PayloadType *pt;
RtpSession *rtps=stream->session;
MSPixFmt format;
MSVideoSize disp_size;
int tmp;
JBParameters jbp;
const int socket_buf_size=2000000;
if (cam==NULL){
cam=ms_web_cam_manager_get_default_cam (
ms_web_cam_manager_get());
}
pt=rtp_profile_get_payload(profile,payload);
if (pt==NULL){
ms_error("videostream.c: undefined payload type.");
return -1;
}
rtp_session_set_profile(rtps,profile);
if (remport>0) rtp_session_set_remote_addr_full(rtps,remip,remport,rem_rtcp_port);
rtp_session_set_payload_type(rtps,payload);
rtp_session_set_jitter_compensation(rtps,jitt_comp);
rtp_session_signal_connect(stream->session,"payload_type_changed",
(RtpCallback)payload_type_changed,(unsigned long)stream);
rtp_session_set_recv_buf_size(stream->session,MAX_RTP_SIZE);
rtp_session_get_jitter_buffer_params(stream->session,&jbp);
jbp.max_packets=1000;//needed for high resolution video
rtp_session_set_jitter_buffer_params(stream->session,&jbp);
rtp_session_set_rtp_socket_recv_buffer_size(stream->session,socket_buf_size);
rtp_session_set_rtp_socket_send_buffer_size(stream->session,socket_buf_size);
if (stream->dir==VideoStreamSendRecv || stream->dir==VideoStreamSendOnly){
/*plumb the outgoing stream */
if (remport>0) ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_SET_SESSION,stream->session);
stream->encoder=ms_filter_create_encoder(pt->mime_type);
if ((stream->encoder==NULL) ){
/* big problem: we don't have a registered codec for this payload...*/
ms_error("videostream.c: No encoder available for payload %i:%s.",payload,pt->mime_type);
return -1;
}
/* creates the filters */
stream->source = ms_web_cam_create_reader(cam);
stream->tee = ms_filter_new(MS_TEE_ID);
if (pt->normal_bitrate>0){
ms_message("Limiting bitrate of video encoder to %i bits/s",pt->normal_bitrate);
ms_filter_call_method(stream->encoder,MS_FILTER_SET_BITRATE,&pt->normal_bitrate);
}
if (pt->send_fmtp){
ms_filter_call_method(stream->encoder,MS_FILTER_ADD_FMTP,pt->send_fmtp);
}
if (stream->use_preview_window){
if (stream->rendercb==NULL){
stream->output2=ms_filter_new_from_name (stream->display_name);
}
}
configure_video_source (stream);
/* and then connect all */
ms_filter_link (stream->source, 0, stream->pixconv, 0);
ms_filter_link (stream->pixconv, 0, stream->sizeconv, 0);
ms_filter_link (stream->sizeconv, 0, stream->tee, 0);
ms_filter_link (stream->tee, 0 ,stream->encoder, 0 );
ms_filter_link (stream->encoder,0, stream->rtpsend,0);
if (stream->output2){
if (stream->window_id!=0){
ms_filter_call_method(stream->output2, MS_VIDEO_DISPLAY_SET_NATIVE_WINDOW_ID,&stream->preview_window_id);
}
ms_filter_link(stream->tee,1,stream->output2,0);
}
}
if (stream->dir==VideoStreamSendRecv || stream->dir==VideoStreamRecvOnly){
MSConnectionHelper ch;
/*plumb the incoming stream */
stream->decoder=ms_filter_create_decoder(pt->mime_type);
if ((stream->decoder==NULL) ){
/* big problem: we don't have a registered decoderfor this payload...*/
ms_error("videostream.c: No decoder available for payload %i:%s.",payload,pt->mime_type);
return -1;
}
stream->rtprecv = ms_filter_new (MS_RTP_RECV_ID);
ms_filter_call_method(stream->rtprecv,MS_RTP_RECV_SET_SESSION,stream->session);
if(stream->conf_mode==FALSE)
{
stream->tee2=ms_filter_new(MS_TEE_ID);
stream->jpegwriter=ms_filter_new(MS_JPEG_WRITER_ID);
}
if (stream->rendercb!=NULL){
stream->output=ms_filter_new(MS_EXT_DISPLAY_ID);
ms_filter_set_notify_callback (stream->output,ext_display_cb,stream);
}else{
if(stream->conf_mode)
stream->output=ms_filter_new(MS_VOID_SINK_ID);
else
stream->output=ms_filter_new_from_name (stream->display_name);
}
/* set parameters to the decoder*/
if (pt->send_fmtp){
ms_filter_call_method(stream->decoder,MS_FILTER_ADD_FMTP,pt->send_fmtp);
}
if (pt->recv_fmtp!=NULL)
ms_filter_call_method(stream->decoder,MS_FILTER_ADD_FMTP,(void*)pt->recv_fmtp);
/*force the decoder to output YUV420P */
format=MS_YUV420P;
ms_filter_call_method(stream->decoder,MS_FILTER_SET_PIX_FMT,&format);
/*configure the display window */
disp_size.width=MS_VIDEO_SIZE_CIF_W;
disp_size.height=MS_VIDEO_SIZE_CIF_H;
tmp=1;
ms_filter_call_method(stream->output,MS_FILTER_SET_VIDEO_SIZE,&disp_size);
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_ENABLE_AUTOFIT,&tmp);
ms_filter_call_method(stream->output,MS_FILTER_SET_PIX_FMT,&format);
ms_filter_call_method(stream->output,MS_VIDEO_DISPLAY_SET_LOCAL_VIEW_MODE,&stream->corner);
if (stream->window_id!=0){
ms_filter_call_method(stream->output, MS_VIDEO_DISPLAY_SET_NATIVE_WINDOW_ID,&stream->window_id);
}
/* and connect the filters */
ms_connection_helper_start (&ch);
ms_connection_helper_link (&ch,stream->rtprecv,-1,0);
ms_connection_helper_link (&ch,stream->decoder,0,0);
if (stream->tee2){
ms_connection_helper_link (&ch,stream->tee2,0,0);
ms_filter_link(stream->tee2,1,stream->jpegwriter,0);
//Êä³öÊÓƵ¼ÖÆÖ¡.
if(stream->video_record)
ms_filter_link(stream->tee2,2,stream->video_record,0);
}
ms_connection_helper_link (&ch,stream->output,0,-1);
/* the video source must be send for preview , if it exists*/
if (stream->tee!=NULL && stream->output2==NULL)
ms_filter_link(stream->tee,1,stream->output,1);
}
/* create the ticker */
stream->ticker = ms_ticker_new();
ms_ticker_set_name(stream->ticker,"Video MSTicker");
//¼æÈÝPVX Ðëµ÷Õû±àÂë¼ä¸ô
//stream->ticker->interval = 3;
#ifdef ENABLE_UDT
if(stream->enable_udt){
stream->udt = ms_filter_new(MS_UDT_TRANSPORT_ID);
ms_filter_call_method(stream->udt,MS_UDT_SET_RTP_SESSION,stream->session);
}
#endif //ENABLE_UDT
/* attach the graphs */
if (stream->source)
ms_ticker_attach (stream->ticker, stream->source);
if (stream->rtprecv)
ms_ticker_attach (stream->ticker, stream->rtprecv);
#ifdef ENABLE_UDT //×îºóÔËÐУ¬±ÜÃâ×èÈûUI
if (stream->udt) ms_ticker_attach (stream->ticker, stream->udt);
#endif // ENABLE_UDT
return 0;
}
