mirror of https://github.com/mpv-player/mpv
718 lines
19 KiB
C
718 lines
19 KiB
C
/*
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* This file is part of MPlayer.
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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 along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifndef __MINGW32__
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#endif
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#include <fcntl.h>
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#include <strings.h>
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#include <assert.h>
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#include "talloc.h"
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#include "config.h"
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#if HAVE_WINSOCK2_H
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#include <winsock2.h>
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#endif
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#include <libavutil/common.h>
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#include "mp_msg.h"
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#include "osdep/shmem.h"
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#include "osdep/timer.h"
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#include "network.h"
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#include "stream.h"
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#include "libmpdemux/demuxer.h"
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#include "ffmpeg_files/intreadwrite.h"
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#include "m_option.h"
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#include "m_struct.h"
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#include "cache2.h"
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struct input_ctx;
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static int (*stream_check_interrupt_cb)(struct input_ctx *ctx, int time);
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static struct input_ctx *stream_check_interrupt_ctx;
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extern const stream_info_t stream_info_vcd;
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extern const stream_info_t stream_info_cdda;
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extern const stream_info_t stream_info_netstream;
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extern const stream_info_t stream_info_pnm;
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extern const stream_info_t stream_info_asf;
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extern const stream_info_t stream_info_rtsp;
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extern const stream_info_t stream_info_rtp;
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extern const stream_info_t stream_info_udp;
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extern const stream_info_t stream_info_http1;
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extern const stream_info_t stream_info_http2;
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extern const stream_info_t stream_info_dvb;
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extern const stream_info_t stream_info_tv;
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extern const stream_info_t stream_info_radio;
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extern const stream_info_t stream_info_pvr;
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extern const stream_info_t stream_info_ftp;
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extern const stream_info_t stream_info_vstream;
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extern const stream_info_t stream_info_dvdnav;
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extern const stream_info_t stream_info_smb;
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extern const stream_info_t stream_info_sdp;
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extern const stream_info_t stream_info_rtsp_sip;
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extern const stream_info_t stream_info_cue;
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extern const stream_info_t stream_info_null;
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extern const stream_info_t stream_info_mf;
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extern const stream_info_t stream_info_ffmpeg;
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extern const stream_info_t stream_info_file;
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extern const stream_info_t stream_info_ifo;
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extern const stream_info_t stream_info_dvd;
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extern const stream_info_t stream_info_bluray;
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static const stream_info_t* const auto_open_streams[] = {
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#ifdef CONFIG_VCD
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&stream_info_vcd,
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#endif
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#ifdef CONFIG_CDDA
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&stream_info_cdda,
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#endif
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#ifdef CONFIG_NETWORKING
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&stream_info_netstream,
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&stream_info_http1,
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&stream_info_asf,
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&stream_info_pnm,
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&stream_info_rtsp,
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#ifdef CONFIG_LIVE555
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&stream_info_sdp,
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&stream_info_rtsp_sip,
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#endif
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&stream_info_rtp,
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&stream_info_udp,
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&stream_info_http2,
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#endif
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#ifdef CONFIG_DVBIN
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&stream_info_dvb,
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#endif
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#ifdef CONFIG_TV
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&stream_info_tv,
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#endif
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#ifdef CONFIG_RADIO
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&stream_info_radio,
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#endif
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#ifdef CONFIG_PVR
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&stream_info_pvr,
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#endif
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#ifdef CONFIG_FTP
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&stream_info_ftp,
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#endif
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#ifdef CONFIG_VSTREAM
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&stream_info_vstream,
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#endif
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#ifdef CONFIG_LIBSMBCLIENT
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&stream_info_smb,
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#endif
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&stream_info_cue,
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#ifdef CONFIG_DVDREAD
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&stream_info_ifo,
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&stream_info_dvd,
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#endif
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#ifdef CONFIG_DVDNAV
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&stream_info_dvdnav,
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#endif
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#ifdef CONFIG_LIBBLURAY
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&stream_info_bluray,
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#endif
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#ifdef CONFIG_FFMPEG
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&stream_info_ffmpeg,
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#endif
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&stream_info_null,
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&stream_info_mf,
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&stream_info_file,
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NULL
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};
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static stream_t *open_stream_plugin(const stream_info_t *sinfo,
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const char *filename,
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int mode, struct MPOpts *options,
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int *file_format, int *ret,
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char **redirected_url)
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{
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void* arg = NULL;
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stream_t* s;
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m_struct_t* desc = (m_struct_t*)sinfo->opts;
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// Parse options
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if(desc) {
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arg = m_struct_alloc(desc);
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if(sinfo->opts_url) {
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m_option_t url_opt =
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{ "stream url", arg , CONF_TYPE_CUSTOM_URL, 0, 0 ,0, (void *)sinfo->opts };
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if(m_option_parse(&url_opt,"stream url",filename,arg,M_CONFIG_FILE) < 0) {
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mp_tmsg(MSGT_OPEN,MSGL_ERR, "URL parsing failed on url %s\n",filename);
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m_struct_free(desc,arg);
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return NULL;
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}
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}
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}
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s = new_stream(-2,-2);
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s->opts = options;
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s->url=strdup(filename);
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s->flags |= mode;
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*ret = sinfo->open(s,mode,arg,file_format);
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if((*ret) != STREAM_OK) {
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#ifdef CONFIG_NETWORKING
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if (*ret == STREAM_REDIRECTED && redirected_url) {
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if (s->streaming_ctrl && s->streaming_ctrl->url
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&& s->streaming_ctrl->url->url)
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*redirected_url = strdup(s->streaming_ctrl->url->url);
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else
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*redirected_url = NULL;
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}
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streaming_ctrl_free(s->streaming_ctrl);
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#endif
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free(s->url);
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free(s);
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return NULL;
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}
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if(s->type <= -2)
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mp_msg(MSGT_OPEN,MSGL_WARN, "Warning streams need a type !!!!\n");
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if(s->flags & MP_STREAM_SEEK && !s->seek)
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s->flags &= ~MP_STREAM_SEEK;
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if(s->seek && !(s->flags & MP_STREAM_SEEK))
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s->flags |= MP_STREAM_SEEK;
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s->mode = mode;
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mp_msg(MSGT_OPEN,MSGL_V, "STREAM: [%s] %s\n",sinfo->name,filename);
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mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Description: %s\n",sinfo->info);
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mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Author: %s\n", sinfo->author);
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mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Comment: %s\n", sinfo->comment);
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return s;
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}
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stream_t *open_stream_full(const char *filename, int mode,
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struct MPOpts *options, int *file_format)
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{
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int i,j,l,r;
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const stream_info_t* sinfo;
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stream_t* s;
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char *redirected_url = NULL;
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for(i = 0 ; auto_open_streams[i] ; i++) {
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sinfo = auto_open_streams[i];
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if(!sinfo->protocols) {
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mp_msg(MSGT_OPEN,MSGL_WARN, "Stream type %s has protocols == NULL, it's a bug\n", sinfo->name);
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continue;
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}
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for(j = 0 ; sinfo->protocols[j] ; j++) {
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l = strlen(sinfo->protocols[j]);
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// l == 0 => Don't do protocol matching (ie network and filenames)
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if((l == 0 && !strstr(filename, "://")) ||
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((strncasecmp(sinfo->protocols[j],filename,l) == 0) &&
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(strncmp("://",filename+l,3) == 0))) {
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*file_format = DEMUXER_TYPE_UNKNOWN;
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s = open_stream_plugin(sinfo,filename,mode,options,file_format,&r,
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&redirected_url);
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if(s) return s;
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if(r == STREAM_REDIRECTED && redirected_url) {
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mp_msg(MSGT_OPEN,MSGL_V, "[%s] open %s redirected to %s\n",
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sinfo->info, filename, redirected_url);
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s = open_stream_full(redirected_url, mode, options, file_format);
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free(redirected_url);
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return s;
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}
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else if(r != STREAM_UNSUPPORTED) {
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mp_tmsg(MSGT_OPEN,MSGL_ERR, "Failed to open %s.\n",filename);
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return NULL;
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}
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break;
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}
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}
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}
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mp_tmsg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n", filename);
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return NULL;
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}
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stream_t *open_output_stream(const char *filename, struct MPOpts *options)
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{
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int file_format; //unused
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if(!filename) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"open_output_stream(), NULL filename, report this bug\n");
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return NULL;
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}
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return open_stream_full(filename,STREAM_WRITE,options,&file_format);
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}
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//=================== STREAMER =========================
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void stream_capture_do(stream_t *s)
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{
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if (fwrite(s->buffer, s->buf_len, 1, s->capture_file) < 1) {
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mp_tmsg(MSGT_GLOBAL, MSGL_ERR, "Error writing capture file: %s\n",
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strerror(errno));
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fclose(s->capture_file);
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s->capture_file = NULL;
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}
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}
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int stream_read_internal(stream_t *s, void *buf, int len)
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{
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int orig_len = len;
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// we will retry even if we already reached EOF previously.
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switch(s->type){
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case STREAMTYPE_STREAM:
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#ifdef CONFIG_NETWORKING
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if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_read ) {
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len=s->streaming_ctrl->streaming_read(s->fd, buf, len, s->streaming_ctrl);
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} else
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#endif
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if (s->fill_buffer)
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len = s->fill_buffer(s, buf, len);
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else
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len = read(s->fd, buf, len);
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break;
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case STREAMTYPE_DS:
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len = demux_read_data((demux_stream_t*)s->priv, buf, len);
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break;
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default:
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len= s->fill_buffer ? s->fill_buffer(s, buf, len) : 0;
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}
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if(len<=0){
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// dvdnav has some horrible hacks to "suspend" reads,
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// we need to skip this code or seeks will hang.
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if (!s->eof && s->type != STREAMTYPE_DVDNAV) {
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// just in case this is an error e.g. due to network
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// timeout reset and retry
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// Seeking is used as a hack to make network streams
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// reopen the connection, ideally they would implement
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// e.g. a STREAM_CTRL_RECONNECT to do this
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off_t pos = s->pos;
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s->eof=1;
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stream_reset(s);
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stream_seek_internal(s, pos);
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// make sure EOF is set to ensure no endless loops
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s->eof=1;
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return stream_read_internal(s, buf, orig_len);
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}
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s->eof=1;
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return 0;
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}
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// When reading succeeded we are obviously not at eof.
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// This e.g. avoids issues with eof getting stuck when lavf seeks in MPEG-TS
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s->eof=0;
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s->pos+=len;
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return len;
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}
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int stream_fill_buffer(stream_t *s){
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int len = stream_read_internal(s, s->buffer, STREAM_BUFFER_SIZE);
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if (len <= 0)
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return 0;
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s->buf_pos=0;
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s->buf_len=len;
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// printf("[%d]",len);fflush(stdout);
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if (s->capture_file)
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stream_capture_do(s);
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return len;
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}
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int stream_write_buffer(stream_t *s, unsigned char *buf, int len) {
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int rd;
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if(!s->write_buffer)
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return -1;
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rd = s->write_buffer(s, buf, len);
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if(rd < 0)
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return -1;
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s->pos += rd;
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assert(rd == len && "stream_write_buffer(): unexpected short write");
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return rd;
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}
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int stream_seek_internal(stream_t *s, off_t newpos)
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{
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if(newpos==0 || newpos!=s->pos){
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switch(s->type){
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case STREAMTYPE_STREAM:
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//s->pos=newpos; // real seek
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// Some streaming protocol allow to seek backward and forward
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// A function call that return -1 can tell that the protocol
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// doesn't support seeking.
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#ifdef CONFIG_NETWORKING
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if(s->seek) { // new stream seek is much cleaner than streaming_ctrl one
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if(!s->seek(s,newpos)) {
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mp_tmsg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
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return 0;
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}
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break;
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}
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if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_seek ) {
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if( s->streaming_ctrl->streaming_seek( s->fd, newpos, s->streaming_ctrl )<0 ) {
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mp_tmsg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n");
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return 1;
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}
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break;
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}
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#endif
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if(newpos<s->pos){
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mp_tmsg(MSGT_STREAM, MSGL_INFO,
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"Cannot seek backward in linear streams!\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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// This should at the beginning as soon as all streams are converted
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if(!s->seek)
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return 0;
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// Now seek
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if(!s->seek(s,newpos)) {
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mp_tmsg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
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return 0;
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}
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}
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// putchar('.');fflush(stdout);
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//} else {
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// putchar('%');fflush(stdout);
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}
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return -1;
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}
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int stream_seek_long(stream_t *s,off_t pos){
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int res;
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off_t newpos=0;
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// if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ) printf("seek_long to 0x%X\n",(unsigned int)pos);
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s->buf_pos=s->buf_len=0;
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if(s->mode == STREAM_WRITE) {
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if(!s->seek || !s->seek(s,pos))
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return 0;
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return 1;
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}
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if(s->sector_size)
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newpos = (pos/s->sector_size)*s->sector_size;
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else
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newpos = pos&(~((off_t)STREAM_BUFFER_SIZE-1));
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if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ){
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mp_msg(MSGT_STREAM,MSGL_DBG3, "s->pos=%"PRIX64" newpos=%"PRIX64" new_bufpos=%"PRIX64" buflen=%X \n",
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(int64_t)s->pos,(int64_t)newpos,(int64_t)pos,s->buf_len);
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}
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pos-=newpos;
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res = stream_seek_internal(s, newpos);
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if (res >= 0)
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return res;
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while(s->pos<newpos){
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if(stream_fill_buffer(s)<=0) break; // EOF
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}
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s->eof = 0; // EOF reset when seek succeeds.
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while (stream_fill_buffer(s) > 0) {
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if(pos<=s->buf_len){
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s->buf_pos=pos; // byte position in sector
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return 1;
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}
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pos -= s->buf_len;
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}
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// Fill failed, but seek still is a success.
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s->pos += pos;
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s->buf_pos = 0;
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s->buf_len = 0;
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mp_msg(MSGT_STREAM,MSGL_V,
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"stream_seek: Seek to/past EOF: no buffer preloaded.\n");
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return 1;
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}
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void stream_reset(stream_t *s){
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if(s->eof){
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s->pos=0;
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s->buf_pos=s->buf_len=0;
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s->eof=0;
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}
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if(s->control) s->control(s,STREAM_CTRL_RESET,NULL);
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//stream_seek(s,0);
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}
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int stream_control(stream_t *s, int cmd, void *arg){
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if(!s->control) return STREAM_UNSUPPORTED;
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#ifdef CONFIG_STREAM_CACHE
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if (s->cache_pid)
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return cache_do_control(s, cmd, arg);
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#endif
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return s->control(s, cmd, arg);
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}
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stream_t* new_memory_stream(unsigned char* data,int len){
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stream_t *s;
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if(len < 0)
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return NULL;
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s=calloc(1, sizeof(stream_t)+len);
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s->fd=-1;
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s->type=STREAMTYPE_MEMORY;
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s->buf_pos=0; s->buf_len=len;
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s->start_pos=0; s->end_pos=len;
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stream_reset(s);
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s->pos=len;
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memcpy(s->buffer,data,len);
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return s;
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}
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stream_t* new_stream(int fd,int type){
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stream_t *s=calloc(1, sizeof(stream_t));
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if(s==NULL) return NULL;
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#if HAVE_WINSOCK2_H
|
|
{
|
|
WSADATA wsdata;
|
|
int temp = WSAStartup(0x0202, &wsdata); // there might be a better place for this (-> later)
|
|
mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 init: %i\n", temp);
|
|
}
|
|
#endif
|
|
|
|
s->fd=fd;
|
|
s->type=type;
|
|
s->buf_pos=s->buf_len=0;
|
|
s->start_pos=s->end_pos=0;
|
|
s->priv=NULL;
|
|
s->url=NULL;
|
|
s->cache_pid=0;
|
|
stream_reset(s);
|
|
return s;
|
|
}
|
|
|
|
void free_stream(stream_t *s){
|
|
// printf("\n*** free_stream() called ***\n");
|
|
#ifdef CONFIG_STREAM_CACHE
|
|
cache_uninit(s);
|
|
#endif
|
|
if (s->capture_file) {
|
|
fclose(s->capture_file);
|
|
s->capture_file = NULL;
|
|
}
|
|
|
|
if(s->close) s->close(s);
|
|
if(s->fd>0){
|
|
/* on unix we define closesocket to close
|
|
on windows however we have to distinguish between
|
|
network socket and file */
|
|
if(s->url && strstr(s->url,"://"))
|
|
closesocket(s->fd);
|
|
else close(s->fd);
|
|
}
|
|
#if HAVE_WINSOCK2_H
|
|
mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 uninit\n");
|
|
WSACleanup(); // there might be a better place for this (-> later)
|
|
#endif
|
|
// Disabled atm, i don't like that. s->priv can be anything after all
|
|
// streams should destroy their priv on close
|
|
//free(s->priv);
|
|
free(s->url);
|
|
free(s);
|
|
}
|
|
|
|
stream_t* new_ds_stream(demux_stream_t *ds) {
|
|
stream_t* s = new_stream(-1,STREAMTYPE_DS);
|
|
s->priv = ds;
|
|
return s;
|
|
}
|
|
|
|
void stream_set_interrupt_callback(int (*cb)(struct input_ctx *, int),
|
|
struct input_ctx *ctx)
|
|
{
|
|
stream_check_interrupt_cb = cb;
|
|
stream_check_interrupt_ctx = ctx;
|
|
}
|
|
|
|
int stream_check_interrupt(int time) {
|
|
if(!stream_check_interrupt_cb) {
|
|
usec_sleep(time * 1000);
|
|
return 0;
|
|
}
|
|
return stream_check_interrupt_cb(stream_check_interrupt_ctx, time);
|
|
}
|
|
|
|
/**
|
|
* Helper function to read 16 bits little-endian and advance pointer
|
|
*/
|
|
static uint16_t get_le16_inc(const uint8_t **buf)
|
|
{
|
|
uint16_t v = AV_RL16(*buf);
|
|
*buf += 2;
|
|
return v;
|
|
}
|
|
|
|
/**
|
|
* Helper function to read 16 bits big-endian and advance pointer
|
|
*/
|
|
static uint16_t get_be16_inc(const uint8_t **buf)
|
|
{
|
|
uint16_t v = AV_RB16(*buf);
|
|
*buf += 2;
|
|
return v;
|
|
}
|
|
|
|
/**
|
|
* Find a newline character in buffer
|
|
* \param buf buffer to search
|
|
* \param len amount of bytes to search in buffer, may not overread
|
|
* \param utf16 chose between UTF-8/ASCII/other and LE and BE UTF-16
|
|
* 0 = UTF-8/ASCII/other, 1 = UTF-16-LE, 2 = UTF-16-BE
|
|
*/
|
|
static const uint8_t *find_newline(const uint8_t *buf, int len, int utf16)
|
|
{
|
|
uint32_t c;
|
|
const uint8_t *end = buf + len;
|
|
switch (utf16) {
|
|
case 0:
|
|
return (uint8_t *)memchr(buf, '\n', len);
|
|
case 1:
|
|
while (buf < end - 1) {
|
|
GET_UTF16(c, buf < end - 1 ? get_le16_inc(&buf) : 0, return NULL;)
|
|
if (buf <= end && c == '\n')
|
|
return buf - 1;
|
|
}
|
|
break;
|
|
case 2:
|
|
while (buf < end - 1) {
|
|
GET_UTF16(c, buf < end - 1 ? get_be16_inc(&buf) : 0, return NULL;)
|
|
if (buf <= end && c == '\n')
|
|
return buf - 1;
|
|
}
|
|
break;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Copy a number of bytes, converting to UTF-8 if input is UTF-16
|
|
* \param dst buffer to copy to
|
|
* \param dstsize size of dst buffer
|
|
* \param src buffer to copy from
|
|
* \param len amount of bytes to copy from src
|
|
* \param utf16 chose between UTF-8/ASCII/other and LE and BE UTF-16
|
|
* 0 = UTF-8/ASCII/other, 1 = UTF-16-LE, 2 = UTF-16-BE
|
|
*/
|
|
static int copy_characters(uint8_t *dst, int dstsize,
|
|
const uint8_t *src, int *len, int utf16)
|
|
{
|
|
uint32_t c;
|
|
uint8_t *dst_end = dst + dstsize;
|
|
const uint8_t *end = src + *len;
|
|
switch (utf16) {
|
|
case 0:
|
|
if (*len > dstsize)
|
|
*len = dstsize;
|
|
memcpy(dst, src, *len);
|
|
return *len;
|
|
case 1:
|
|
while (src < end - 1 && dst_end - dst > 8) {
|
|
uint8_t tmp;
|
|
GET_UTF16(c, src < end - 1 ? get_le16_inc(&src) : 0, ;)
|
|
PUT_UTF8(c, tmp, *dst++ = tmp;)
|
|
}
|
|
*len -= end - src;
|
|
return dstsize - (dst_end - dst);
|
|
case 2:
|
|
while (src < end - 1 && dst_end - dst > 8) {
|
|
uint8_t tmp;
|
|
GET_UTF16(c, src < end - 1 ? get_be16_inc(&src) : 0, ;)
|
|
PUT_UTF8(c, tmp, *dst++ = tmp;)
|
|
}
|
|
*len -= end - src;
|
|
return dstsize - (dst_end - dst);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned char* stream_read_line(stream_t *s,unsigned char* mem, int max, int utf16) {
|
|
int len;
|
|
const unsigned char *end;
|
|
unsigned char *ptr = mem;
|
|
if (max < 1) return NULL;
|
|
max--; // reserve one for 0-termination
|
|
do {
|
|
len = s->buf_len-s->buf_pos;
|
|
// try to fill the buffer
|
|
if(len <= 0 &&
|
|
(!cache_stream_fill_buffer(s) ||
|
|
(len = s->buf_len-s->buf_pos) <= 0)) break;
|
|
end = find_newline(s->buffer+s->buf_pos, len, utf16);
|
|
if(end) len = end - (s->buffer+s->buf_pos) + 1;
|
|
if(len > 0 && max > 0) {
|
|
int l = copy_characters(ptr, max, s->buffer+s->buf_pos, &len, utf16);
|
|
max -= l;
|
|
ptr += l;
|
|
if (!len)
|
|
break;
|
|
}
|
|
s->buf_pos += len;
|
|
} while(!end);
|
|
ptr[0] = 0;
|
|
if(s->eof && ptr == mem) return NULL;
|
|
return mem;
|
|
}
|
|
|
|
struct bstr stream_read_complete(struct stream *s, void *talloc_ctx,
|
|
int max_size, int padding_bytes)
|
|
{
|
|
if (max_size > 1000000000)
|
|
abort();
|
|
|
|
int bufsize;
|
|
int total_read = 0;
|
|
int padding = FFMAX(padding_bytes, 1);
|
|
char *buf = NULL;
|
|
if (s->end_pos > max_size)
|
|
return (struct bstr){NULL, 0};
|
|
if (s->end_pos > 0)
|
|
bufsize = s->end_pos + padding;
|
|
else
|
|
bufsize = 1000;
|
|
while (1) {
|
|
buf = talloc_realloc_size(talloc_ctx, buf, bufsize);
|
|
int readsize = stream_read(s, buf + total_read, bufsize - total_read);
|
|
total_read += readsize;
|
|
if (total_read < bufsize)
|
|
break;
|
|
if (bufsize > max_size) {
|
|
talloc_free(buf);
|
|
return (struct bstr){NULL, 0};
|
|
}
|
|
bufsize = FFMIN(bufsize + (bufsize >> 1), max_size + padding);
|
|
}
|
|
buf = talloc_realloc_size(talloc_ctx, buf, total_read + padding);
|
|
return (struct bstr){buf, total_read};
|
|
}
|