/* * This file is part of MPlayer. * * MPlayer is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * MPlayer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with MPlayer; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include #ifndef __MINGW32__ #include #include #endif #include #include #include #include "config.h" #if HAVE_WINSOCK2_H #include #endif #include #include "mp_msg.h" #include "osdep/shmem.h" #include "osdep/timer.h" #include "network.h" #include "stream.h" #include "libmpdemux/demuxer.h" #include "ffmpeg_files/intreadwrite.h" #include "m_option.h" #include "m_struct.h" #include "cache2.h" struct input_ctx; static int (*stream_check_interrupt_cb)(struct input_ctx *ctx, int time); static struct input_ctx *stream_check_interrupt_ctx; extern const stream_info_t stream_info_vcd; extern const stream_info_t stream_info_cdda; extern const stream_info_t stream_info_netstream; extern const stream_info_t stream_info_pnm; extern const stream_info_t stream_info_asf; extern const stream_info_t stream_info_rtsp; extern const stream_info_t stream_info_rtp; extern const stream_info_t stream_info_udp; extern const stream_info_t stream_info_http1; extern const stream_info_t stream_info_http2; extern const stream_info_t stream_info_dvb; extern const stream_info_t stream_info_tv; extern const stream_info_t stream_info_radio; extern const stream_info_t stream_info_pvr; extern const stream_info_t stream_info_ftp; extern const stream_info_t stream_info_vstream; extern const stream_info_t stream_info_dvdnav; extern const stream_info_t stream_info_smb; extern const stream_info_t stream_info_sdp; extern const stream_info_t stream_info_rtsp_sip; extern const stream_info_t stream_info_cue; extern const stream_info_t stream_info_null; extern const stream_info_t stream_info_mf; extern const stream_info_t stream_info_ffmpeg; extern const stream_info_t stream_info_file; extern const stream_info_t stream_info_ifo; extern const stream_info_t stream_info_dvd; extern const stream_info_t stream_info_bluray; static const stream_info_t* const auto_open_streams[] = { #ifdef CONFIG_VCD &stream_info_vcd, #endif #ifdef CONFIG_CDDA &stream_info_cdda, #endif #ifdef CONFIG_NETWORKING &stream_info_netstream, &stream_info_http1, &stream_info_asf, &stream_info_pnm, &stream_info_rtsp, #ifdef CONFIG_LIVE555 &stream_info_sdp, &stream_info_rtsp_sip, #endif &stream_info_rtp, &stream_info_udp, &stream_info_http2, #endif #ifdef CONFIG_DVBIN &stream_info_dvb, #endif #ifdef CONFIG_TV &stream_info_tv, #endif #ifdef CONFIG_RADIO &stream_info_radio, #endif #ifdef CONFIG_PVR &stream_info_pvr, #endif #ifdef CONFIG_FTP &stream_info_ftp, #endif #ifdef CONFIG_VSTREAM &stream_info_vstream, #endif #ifdef CONFIG_LIBSMBCLIENT &stream_info_smb, #endif &stream_info_cue, #ifdef CONFIG_DVDREAD &stream_info_ifo, &stream_info_dvd, #endif #ifdef CONFIG_DVDNAV &stream_info_dvdnav, #endif #ifdef CONFIG_LIBBLURAY &stream_info_bluray, #endif #ifdef CONFIG_FFMPEG &stream_info_ffmpeg, #endif &stream_info_null, &stream_info_mf, &stream_info_file, NULL }; static stream_t *open_stream_plugin(const stream_info_t *sinfo, const char *filename, int mode, struct MPOpts *options, int *file_format, int *ret, char **redirected_url) { void* arg = NULL; stream_t* s; m_struct_t* desc = (m_struct_t*)sinfo->opts; // Parse options if(desc) { arg = m_struct_alloc(desc); if(sinfo->opts_url) { m_option_t url_opt = { "stream url", arg , CONF_TYPE_CUSTOM_URL, 0, 0 ,0, sinfo->opts }; if(m_option_parse(&url_opt,"stream url",filename,arg,M_CONFIG_FILE) < 0) { mp_msg(MSGT_OPEN,MSGL_ERR, "URL parsing failed on url %s\n",filename); m_struct_free(desc,arg); return NULL; } } } s = new_stream(-2,-2); s->opts = options; s->url=strdup(filename); s->flags |= mode; *ret = sinfo->open(s,mode,arg,file_format); if((*ret) != STREAM_OK) { #ifdef CONFIG_NETWORKING if (*ret == STREAM_REDIRECTED && redirected_url) { if (s->streaming_ctrl && s->streaming_ctrl->url && s->streaming_ctrl->url->url) *redirected_url = strdup(s->streaming_ctrl->url->url); else *redirected_url = NULL; } streaming_ctrl_free(s->streaming_ctrl); #endif free(s->url); free(s); return NULL; } if(s->type <= -2) mp_msg(MSGT_OPEN,MSGL_WARN, "Warning streams need a type !!!!\n"); if(s->flags & MP_STREAM_SEEK && !s->seek) s->flags &= ~MP_STREAM_SEEK; if(s->seek && !(s->flags & MP_STREAM_SEEK)) s->flags |= MP_STREAM_SEEK; s->mode = mode; mp_msg(MSGT_OPEN,MSGL_V, "STREAM: [%s] %s\n",sinfo->name,filename); mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Description: %s\n",sinfo->info); mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Author: %s\n", sinfo->author); mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Comment: %s\n", sinfo->comment); return s; } stream_t *open_stream_full(const char *filename, int mode, struct MPOpts *options, int *file_format) { int i,j,l,r; const stream_info_t* sinfo; stream_t* s; char *redirected_url = NULL; for(i = 0 ; auto_open_streams[i] ; i++) { sinfo = auto_open_streams[i]; if(!sinfo->protocols) { mp_msg(MSGT_OPEN,MSGL_WARN, "Stream type %s has protocols == NULL, it's a bug\n", sinfo->name); continue; } for(j = 0 ; sinfo->protocols[j] ; j++) { l = strlen(sinfo->protocols[j]); // l == 0 => Don't do protocol matching (ie network and filenames) if((l == 0 && !strstr(filename, "://")) || ((strncasecmp(sinfo->protocols[j],filename,l) == 0) && (strncmp("://",filename+l,3) == 0))) { *file_format = DEMUXER_TYPE_UNKNOWN; s = open_stream_plugin(sinfo,filename,mode,options,file_format,&r, &redirected_url); if(s) return s; if(r == STREAM_REDIRECTED && redirected_url) { mp_msg(MSGT_OPEN,MSGL_V, "[%s] open %s redirected to %s\n", sinfo->info, filename, redirected_url); s = open_stream_full(redirected_url, mode, options, file_format); free(redirected_url); return s; } else if(r != STREAM_UNSUPPORTED) { mp_tmsg(MSGT_OPEN,MSGL_ERR, "Failed to open %s.\n",filename); return NULL; } break; } } } mp_msg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n",filename); return NULL; } stream_t *open_output_stream(const char *filename, struct MPOpts *options) { int file_format; //unused if(!filename) { mp_msg(MSGT_OPEN,MSGL_ERR,"open_output_stream(), NULL filename, report this bug\n"); return NULL; } return open_stream_full(filename,STREAM_WRITE,options,&file_format); } //=================== STREAMER ========================= void stream_capture_do(stream_t *s) { if (fwrite(s->buffer, s->buf_len, 1, s->capture_file) < 1) { mp_tmsg(MSGT_GLOBAL, MSGL_ERR, "Error writing capture file: %s\n", strerror(errno)); fclose(s->capture_file); s->capture_file = NULL; } } int stream_read_internal(stream_t *s, void *buf, int len) { int orig_len = len; // we will retry even if we already reached EOF previously. switch(s->type){ case STREAMTYPE_STREAM: #ifdef CONFIG_NETWORKING if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_read ) { len=s->streaming_ctrl->streaming_read(s->fd, buf, len, s->streaming_ctrl); } else #endif if (s->fill_buffer) len = s->fill_buffer(s, buf, len); else len = read(s->fd, buf, len); break; case STREAMTYPE_DS: len = demux_read_data((demux_stream_t*)s->priv, buf, len); break; default: len= s->fill_buffer ? s->fill_buffer(s, buf, len) : 0; } if(len<=0){ // dvdnav has some horrible hacks to "suspend" reads, // we need to skip this code or seeks will hang. if (!s->eof && s->type != STREAMTYPE_DVDNAV) { // just in case this is an error e.g. due to network // timeout reset and retry // Seeking is used as a hack to make network streams // reopen the connection, ideally they would implement // e.g. a STREAM_CTRL_RECONNECT to do this off_t pos = s->pos; s->eof=1; stream_reset(s); stream_seek_internal(s, pos); // make sure EOF is set to ensure no endless loops s->eof=1; return stream_read_internal(s, buf, orig_len); } s->eof=1; return 0; } // When reading succeeded we are obviously not at eof. // This e.g. avoids issues with eof getting stuck when lavf seeks in MPEG-TS s->eof=0; s->pos+=len; return len; } int stream_fill_buffer(stream_t *s){ int len = stream_read_internal(s, s->buffer, STREAM_BUFFER_SIZE); if (len <= 0) return 0; s->buf_pos=0; s->buf_len=len; // printf("[%d]",len);fflush(stdout); if (s->capture_file) stream_capture_do(s); return len; } int stream_write_buffer(stream_t *s, unsigned char *buf, int len) { int rd; if(!s->write_buffer) return -1; rd = s->write_buffer(s, buf, len); if(rd < 0) return -1; s->pos += rd; assert(rd == len && "stream_write_buffer(): unexpected short write"); return rd; } int stream_seek_internal(stream_t *s, off_t newpos) { if(newpos==0 || newpos!=s->pos){ switch(s->type){ case STREAMTYPE_STREAM: //s->pos=newpos; // real seek // Some streaming protocol allow to seek backward and forward // A function call that return -1 can tell that the protocol // doesn't support seeking. #ifdef CONFIG_NETWORKING if(s->seek) { // new stream seek is much cleaner than streaming_ctrl one if(!s->seek(s,newpos)) { mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n"); return 0; } break; } if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_seek ) { if( s->streaming_ctrl->streaming_seek( s->fd, newpos, s->streaming_ctrl )<0 ) { mp_msg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n"); return 1; } break; } #endif if(newpospos){ mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek backward in linear streams!\n"); return 1; } break; default: // This should at the beginning as soon as all streams are converted if(!s->seek) return 0; // Now seek if(!s->seek(s,newpos)) { mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n"); return 0; } } // putchar('.');fflush(stdout); //} else { // putchar('%');fflush(stdout); } return -1; } int stream_seek_long(stream_t *s,off_t pos){ int res; off_t newpos=0; // if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ) printf("seek_long to 0x%X\n",(unsigned int)pos); s->buf_pos=s->buf_len=0; if(s->mode == STREAM_WRITE) { if(!s->seek || !s->seek(s,pos)) return 0; return 1; } if(s->sector_size) newpos = (pos/s->sector_size)*s->sector_size; else newpos = pos&(~((off_t)STREAM_BUFFER_SIZE-1)); if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ){ mp_msg(MSGT_STREAM,MSGL_DBG3, "s->pos=%"PRIX64" newpos=%"PRIX64" new_bufpos=%"PRIX64" buflen=%X \n", (int64_t)s->pos,(int64_t)newpos,(int64_t)pos,s->buf_len); } pos-=newpos; res = stream_seek_internal(s, newpos); if (res >= 0) return res; while(s->poseof = 0; // EOF reset when seek succeeds. while (stream_fill_buffer(s) > 0) { if(pos<=s->buf_len){ s->buf_pos=pos; // byte position in sector return 1; } pos -= s->buf_len; } // Fill failed, but seek still is a success. s->pos += pos; s->buf_pos = 0; s->buf_len = 0; mp_msg(MSGT_STREAM,MSGL_V, "stream_seek: Seek to/past EOF: no buffer preloaded.\n"); return 1; } void stream_reset(stream_t *s){ if(s->eof){ s->pos=0; s->buf_pos=s->buf_len=0; s->eof=0; } if(s->control) s->control(s,STREAM_CTRL_RESET,NULL); //stream_seek(s,0); } int stream_control(stream_t *s, int cmd, void *arg){ if(!s->control) return STREAM_UNSUPPORTED; #ifdef CONFIG_STREAM_CACHE if (s->cache_pid) return cache_do_control(s, cmd, arg); #endif return s->control(s, cmd, arg); } stream_t* new_memory_stream(unsigned char* data,int len){ stream_t *s; if(len < 0) return NULL; s=calloc(1, sizeof(stream_t)+len); s->fd=-1; s->type=STREAMTYPE_MEMORY; s->buf_pos=0; s->buf_len=len; s->start_pos=0; s->end_pos=len; stream_reset(s); s->pos=len; memcpy(s->buffer,data,len); return s; } stream_t* new_stream(int fd,int type){ stream_t *s=calloc(1, sizeof(stream_t)); if(s==NULL) return NULL; #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; }