mirror of https://github.com/mpv-player/mpv
461 lines
14 KiB
C
461 lines
14 KiB
C
/*
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* Copyright (C) 2007 Alessandro Molina <amol.wrk@gmail.com>
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MPlayer; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "demux_nemesi.h"
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#include "stheader.h"
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#define HAVE_STRUCT_SOCKADDR_STORAGE
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#include "nemesi/rtsp.h"
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#include "nemesi/rtp.h"
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#include <sched.h>
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int rtsp_transport_tcp = 0;
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int rtsp_transport_sctp = 0;
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// extern int rtsp_port;
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typedef enum { NEMESI_SESSION_VIDEO,
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NEMESI_SESSION_AUDIO } Nemesi_SessionType;
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typedef struct {
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rtsp_ctrl * rtsp;
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rtp_session * session[2];
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rtp_frame first_pkt[2];
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double time[2];
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double seek;
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} Nemesi_DemuxerStreamData;
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#define STYPE_TO_DS(demuxer, stype) \
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((stype) == NEMESI_SESSION_VIDEO ? (demuxer)->video : (demuxer)->audio)
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#define DS_TO_STYPE(demuxer, ds) \
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((ds) == (demuxer)->video ? NEMESI_SESSION_VIDEO : NEMESI_SESSION_AUDIO)
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#define INVERT_STYPE(stype) ((stype + 1) % 2)
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static rtp_ssrc *wait_for_packets(Nemesi_DemuxerStreamData * ndsd, Nemesi_SessionType stype)
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{
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rtp_ssrc *ssrc = NULL;
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/* Wait for prebuffering (prebuffering must be enabled in nemesi) */
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int terminated = rtp_fill_buffers(rtsp_get_rtp_th(ndsd->rtsp));
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/* Wait for the ssrc to be registered, if prebuffering is on in nemesi
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this will just get immediatly the correct ssrc */
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if (!terminated) {
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while ( !(ssrc = rtp_session_get_ssrc(ndsd->session[stype], ndsd->rtsp)) )
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sched_yield();
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}
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return ssrc;
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}
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static void link_session_and_fetch_conf(Nemesi_DemuxerStreamData * ndsd,
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Nemesi_SessionType stype,
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rtp_session * sess,
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rtp_buff * buff, unsigned int * fps)
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{
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extern float force_fps;
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rtp_ssrc *ssrc = NULL;
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rtp_frame * fr = &ndsd->first_pkt[stype];
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rtp_buff trash_buff;
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ndsd->session[stype] = sess;
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ssrc = wait_for_packets(ndsd, stype);
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if ( (ssrc) && (fps != NULL) ) {
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if (buff == NULL)
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buff = &trash_buff;
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rtp_fill_buffer(ssrc, fr, buff); //Prefetch the first packet
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/* Packet prefecthing must be done anyway or we won't be
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able to get the metadata, but fps calculation happens
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only if the user didn't specify the FPS */
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if (!force_fps) {
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while ( *fps <= 0 ) {
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//Wait more pkts to calculate FPS and try again
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sched_yield();
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*fps = rtp_get_fps(ssrc);
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}
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}
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}
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}
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demuxer_t* demux_open_rtp(demuxer_t* demuxer)
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{
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nms_rtsp_hints hints;
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char * url = demuxer->stream->streaming_ctrl->url->url;
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rtsp_ctrl * ctl;
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RTSP_Error reply;
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rtsp_medium * media;
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Nemesi_DemuxerStreamData * ndsd = calloc(1, sizeof(Nemesi_DemuxerStreamData));
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memset(&hints,0,sizeof(hints));
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// if (rtsp_port) hints.first_rtp_port = rtsp_port;
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if (rtsp_transport_tcp) {
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hints.pref_rtsp_proto = TCP;
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hints.pref_rtp_proto = TCP;
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}
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if (rtsp_transport_sctp) {
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hints.pref_rtsp_proto = SCTP;
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hints.pref_rtp_proto = SCTP;
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}
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Initializing libNemesi\n");
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if ((ctl = rtsp_init(&hints)) == NULL) {
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free(ndsd);
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return STREAM_ERROR;
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}
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ndsd->rtsp = ctl;
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demuxer->priv = ndsd;
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//nms_verbosity_set(1);
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Opening: %s\n", url);
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if (rtsp_open(ctl, url)) {
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mp_msg(MSGT_DEMUX, MSGL_ERR, "rtsp_open failed.\n");
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return demuxer;
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}
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reply = rtsp_wait(ctl);
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if (reply.got_error) {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"OPEN Error from the server: %s\n",
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reply.message.reply_str);
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return demuxer;
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}
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rtsp_play(ctl, 0, 0);
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reply = rtsp_wait(ctl);
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if (reply.got_error) {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"PLAY Error from the server: %s\n",
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reply.message.reply_str);
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return demuxer;
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}
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media = ctl->rtsp_queue->media_queue;
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for (; media; media=media->next) {
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sdp_medium_info * info = media->medium_info;
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rtp_session * sess = media->rtp_sess;
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int media_format = atoi(info->fmts);
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rtp_pt * ptinfo = rtp_get_pt_info(sess, media_format);
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char const * format_name = ptinfo ? ptinfo->name : NULL;
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if (sess->parsers[media_format] == NULL) {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"libNemesi unsupported media format: %s\n",
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format_name ? format_name : info->fmts);
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continue;
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}
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else {
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mp_msg(MSGT_DEMUX, MSGL_INFO,
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"libNemesi supported media: %s\n",
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format_name);
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}
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if (ptinfo->type == AU) {
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if (ndsd->session[NEMESI_SESSION_AUDIO] == NULL) {
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sh_audio_t* sh_audio = new_sh_audio(demuxer,0);
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WAVEFORMATEX* wf = calloc(1,sizeof(WAVEFORMATEX));
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demux_stream_t* d_audio = demuxer->audio;
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Detected as AUDIO stream...\n");
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link_session_and_fetch_conf(ndsd, NEMESI_SESSION_AUDIO,
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sess, NULL, NULL);
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sh_audio->wf = wf;
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d_audio->sh = sh_audio;
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sh_audio->ds = d_audio;
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wf->nSamplesPerSec = 0;
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//List of known audio formats
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if (!strcmp(format_name, "MPA"))
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wf->wFormatTag =
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sh_audio->format = 0x55;
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else if (!strcmp(format_name, "vorbis"))
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wf->wFormatTag =
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sh_audio->format = mmioFOURCC('v','r','b','s');
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else
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mp_msg(MSGT_DEMUX, MSGL_WARN,
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"Unknown MPlayer format code for MIME"
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" type \"audio/%s\"\n", format_name);
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} else {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"There is already an audio session registered,"
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" ignoring...\n");
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}
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} else if (ptinfo->type == VI) {
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if (ndsd->session[NEMESI_SESSION_AUDIO] == NULL) {
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sh_video_t* sh_video;
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BITMAPINFOHEADER* bih;
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demux_stream_t* d_video;
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int fps = 0;
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rtp_buff buff;
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memset(&buff, 0, sizeof(rtp_buff));
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Detected as VIDEO stream...\n");
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link_session_and_fetch_conf(ndsd, NEMESI_SESSION_VIDEO,
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sess, &buff, &fps);
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if (buff.len) {
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bih = calloc(1,sizeof(BITMAPINFOHEADER)+buff.len);
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bih->biSize = sizeof(BITMAPINFOHEADER)+buff.len;
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memcpy(bih+1, buff.data, buff.len);
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} else {
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bih = calloc(1,sizeof(BITMAPINFOHEADER));
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bih->biSize = sizeof(BITMAPINFOHEADER);
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}
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sh_video = new_sh_video(demuxer,0);
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sh_video->bih = bih;
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d_video = demuxer->video;
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d_video->sh = sh_video;
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sh_video->ds = d_video;
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if (fps) {
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sh_video->fps = fps;
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sh_video->frametime = 1.0/fps;
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}
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//List of known video formats
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if (!strcmp(format_name, "MPV")) {
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bih->biCompression =
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sh_video->format = mmioFOURCC('M','P','E','G');
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} else if (!strcmp(format_name, "H264")) {
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bih->biCompression =
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sh_video->format = mmioFOURCC('H','2','6','4');
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} else if (!strcmp(format_name, "H263-1998")) {
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bih->biCompression =
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sh_video->format = mmioFOURCC('H','2','6','3');
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} else {
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mp_msg(MSGT_DEMUX, MSGL_WARN,
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"Unknown MPlayer format code for MIME"
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" type \"video/%s\"\n", format_name);
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}
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} else {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"There is already a video session registered,"
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" ignoring...\n");
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}
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} else {
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mp_msg(MSGT_DEMUX, MSGL_ERR, "Unsupported media type\n");
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}
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}
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demuxer->stream->eof = 0;
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return demuxer;
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}
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static int get_data_for_session(Nemesi_DemuxerStreamData * ndsd,
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Nemesi_SessionType stype, rtp_ssrc * ssrc,
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rtp_frame * fr)
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{
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if (ndsd->first_pkt[stype].len != 0) {
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fr->data = ndsd->first_pkt[stype].data;
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fr->time_sec = ndsd->first_pkt[stype].time_sec;
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fr->len = ndsd->first_pkt[stype].len;
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ndsd->first_pkt[stype].len = 0;
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return RTP_FILL_OK;
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} else {
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rtp_buff buff;
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return rtp_fill_buffer(ssrc, fr, &buff);
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}
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}
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static void stream_add_packet(Nemesi_DemuxerStreamData * ndsd,
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Nemesi_SessionType stype,
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demux_stream_t* ds, rtp_frame * fr)
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{
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demux_packet_t* dp = new_demux_packet(fr->len);
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memcpy(dp->buffer, fr->data, fr->len);
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fr->time_sec += ndsd->seek;
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ndsd->time[stype] = dp->pts = fr->time_sec;
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ds_add_packet(ds, dp);
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}
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int demux_rtp_fill_buffer(demuxer_t* demuxer, demux_stream_t* ds)
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{
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Nemesi_DemuxerStreamData * ndsd = demuxer->priv;
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Nemesi_SessionType stype;
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rtp_ssrc * ssrc;
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rtp_frame fr;
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if ( (!ndsd->rtsp->rtsp_queue) || (demuxer->stream->eof) ) {
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mp_msg(MSGT_DEMUX, MSGL_INFO, "End of Stream...\n");
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demuxer->stream->eof = 1;
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return 0;
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}
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stype = DS_TO_STYPE(demuxer, ds);
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if ( (ssrc = wait_for_packets(ndsd, stype)) == NULL ) {
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Bye...\n");
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demuxer->stream->eof = 1;
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return 0;
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}
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if(!get_data_for_session(ndsd, stype, ssrc, &fr))
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stream_add_packet(ndsd, stype, ds, &fr);
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else {
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stype = INVERT_STYPE(stype);
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ds = STYPE_TO_DS(demuxer, stype);
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ssrc = wait_for_packets(ndsd, stype);
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if(!get_data_for_session(ndsd, stype, ssrc, &fr))
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stream_add_packet(ndsd, stype, ds, &fr);
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}
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return 1;
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}
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void demux_close_rtp(demuxer_t* demuxer)
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{
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Nemesi_DemuxerStreamData * ndsd = demuxer->priv;
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rtsp_ctrl * ctl = ndsd->rtsp;
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RTSP_Error err;
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Closing libNemesi RTSP Stream...\n");
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if (ndsd == NULL)
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return;
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free(ndsd);
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if (rtsp_close(ctl)) {
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err = rtsp_wait(ctl);
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if (err.got_error)
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"Error Closing Stream: %s\n",
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err.message.reply_str);
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}
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rtsp_uninit(ctl);
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}
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static void demux_seek_rtp(demuxer_t *demuxer, float rel_seek_secs,
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float audio_delay, int flags)
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{
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Nemesi_DemuxerStreamData * ndsd = demuxer->priv;
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rtsp_ctrl * ctl = ndsd->rtsp;
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sdp_attr * r_attr = NULL;
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sdp_range r = {0, 0};
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double time = ndsd->time[NEMESI_SESSION_VIDEO] ?
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ndsd->time[NEMESI_SESSION_VIDEO] :
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ndsd->time[NEMESI_SESSION_AUDIO];
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if (!ctl->rtsp_queue)
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return;
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r_attr = sdp_get_attr(ctl->rtsp_queue->info->attr_list, "range");
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if (r_attr)
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r = sdp_parse_range(r_attr->value);
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//flags & 1 -> absolute seek
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//flags & 2 -> percent seek
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if (flags == 0) {
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time += rel_seek_secs;
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if (time < r.begin)
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time = r.begin;
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else if (time > r.end)
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time = r.end;
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ndsd->seek = time;
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mp_msg(MSGT_DEMUX,MSGL_WARN,"libNemesi SEEK %f on %f - %f)\n",
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time, r.begin, r.end);
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if (!rtsp_seek(ctl, time, 0)) {
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RTSP_Error err = rtsp_wait(ctl);
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if (err.got_error) {
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mp_msg(MSGT_DEMUX, MSGL_ERR,
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"Error Performing Seek: %s\n",
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err.message.reply_str);
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demuxer->stream->eof = 1;
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}
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else
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Seek, performed\n");
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}
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else {
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mp_msg(MSGT_DEMUX, MSGL_ERR, "Unable to pause stream to perform seek\n");
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demuxer->stream->eof = 1;
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}
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}
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else
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mp_msg(MSGT_DEMUX, MSGL_ERR, "Unsupported seek type\n");
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}
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static int demux_rtp_control(struct demuxer_st *demuxer, int cmd, void *arg)
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{
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Nemesi_DemuxerStreamData * ndsd = demuxer->priv;
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rtsp_ctrl * ctl = ndsd->rtsp;
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sdp_attr * r_attr = NULL;
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sdp_range r = {0, 0};
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double time = ndsd->time[NEMESI_SESSION_VIDEO] ?
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ndsd->time[NEMESI_SESSION_VIDEO] :
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ndsd->time[NEMESI_SESSION_AUDIO];
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if (!ctl->rtsp_queue)
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return DEMUXER_CTRL_DONTKNOW;
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r_attr = sdp_get_attr(ctl->rtsp_queue->info->attr_list, "range");
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if (r_attr)
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r = sdp_parse_range(r_attr->value);
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switch (cmd) {
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case DEMUXER_CTRL_GET_TIME_LENGTH:
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if (r.end == 0)
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return DEMUXER_CTRL_DONTKNOW;
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*((double *)arg) = ((double)r.end) - ((double)r.begin);
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return DEMUXER_CTRL_OK;
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case DEMUXER_CTRL_GET_PERCENT_POS:
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if (r.end == 0)
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return DEMUXER_CTRL_DONTKNOW;
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*((int *)arg) = (int)( time * 100 / (r.end - r.begin) );
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return DEMUXER_CTRL_OK;
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default:
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return DEMUXER_CTRL_DONTKNOW;
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}
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}
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demuxer_desc_t demuxer_desc_rtp = {
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"libNemesi demuxer",
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"rtp",
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"",
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"Alessandro Molina",
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"requires libNemesi",
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DEMUXER_TYPE_RTP,
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0, // no autodetect
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NULL,
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demux_rtp_fill_buffer,
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demux_open_rtp,
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demux_close_rtp,
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demux_seek_rtp,
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demux_rtp_control
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};
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