diff options
Diffstat (limited to 'libmpdemux/asf_streaming.c')
-rw-r--r-- | libmpdemux/asf_streaming.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/libmpdemux/asf_streaming.c b/libmpdemux/asf_streaming.c new file mode 100644 index 0000000000..5205a143b6 --- /dev/null +++ b/libmpdemux/asf_streaming.c @@ -0,0 +1,353 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "url.h" +#include "http.h" +#include "asf.h" +#include "network.h" + +#include "stream.h" +//#include "demuxer.h" + +//extern demuxer_t *demuxer; + +static ASF_StreamType_e streaming_type = ASF_Unknown_e; + +int +asf_http_streaming_read( streaming_ctrl_t *streaming_ctrl ) { + char *buffer; + int drop_packet; + int ret; +printf("asf_streaming_read\n"); + ret = asf_streaming( streaming_ctrl->buffer->buffer, streaming_ctrl->buffer->length, &drop_packet ); +printf("ret: %d\n", ret); + if( ret<0 ) return -1; + if( ret>streaming_ctrl->buffer->length ) return 0; + buffer = (char*)malloc(ret); + if( buffer==NULL ) { + printf("Memory allocation failed\n"); + return -1; + } +printf("buffer length: %d\n", streaming_ctrl->buffer->length ); + net_fifo_pop( streaming_ctrl->buffer, buffer, ret ); +printf(" pop: 0x%02X\n", *((unsigned int*)buffer) ); +printf("buffer length: %d\n", streaming_ctrl->buffer->length ); +printf("0x%02X\n", *((unsigned int*)(buffer+sizeof(ASF_stream_chunck_t))) ); + if( !drop_packet ) { + write( streaming_ctrl->fd_pipe_in, buffer+sizeof(ASF_stream_chunck_t), ret-sizeof(ASF_stream_chunck_t) ); + } + free( buffer ); + return ret; +} + +int +asf_streaming(char *data, int length, int *drop_packet ) { + ASF_stream_chunck_t *stream_chunck=(ASF_stream_chunck_t*)data; + printf("ASF stream chunck size=%d\n", stream_chunck->size); +printf("length: %d\n", length ); +printf("0x%02X\n", stream_chunck->type ); + + if( drop_packet!=NULL ) *drop_packet = 0; + if( data==NULL || length<=0 ) return -1; + + if( stream_chunck->size<8 ) { + printf("Ahhhh, stream_chunck size is too small: %d\n", stream_chunck->size); + return -1; + } + if( stream_chunck->size!=stream_chunck->size_confirm ) { + printf("size_confirm mismatch!: %d %d\n", stream_chunck->size, stream_chunck->size_confirm); + return -1; + } + + printf(" type: 0x%02X\n", stream_chunck->type ); + printf(" size: %d (0x%02X)\n", stream_chunck->size, stream_chunck->size ); + printf(" sequence_number: 0x%04X\n", stream_chunck->sequence_number ); + printf(" unknown: 0x%02X\n", stream_chunck->unknown ); + printf(" size_confirm: 0x%02X\n", stream_chunck->size_confirm ); + + + switch(stream_chunck->type) { + case 0x4324: // Clear ASF configuration + printf("=====> Clearing ASF stream configuration!\n"); + if( drop_packet!=NULL ) *drop_packet = 1; + return stream_chunck->size; + break; + case 0x4424: // Data follows + printf("=====> Data follows\n"); + break; + case 0x4524: // Transfer complete + printf("=====> Transfer complete\n"); + if( drop_packet!=NULL ) *drop_packet = 1; + return stream_chunck->size; + break; + case 0x4824: // ASF header chunk follows + printf("=====> ASF header chunk follows\n"); + break; + default: + printf("=====> Unknown stream type 0x%x\n", stream_chunck->type ); + } + return stream_chunck->size+4; +} + +int +asf_http_streaming_type(char *content_type, char *features) { + if( content_type==NULL ) return ASF_Unknown_e; + if( !strcasecmp(content_type, "application/octet-stream") ) { + if( features==NULL ) { + printf("=====> ASF Prerecorded\n"); + return ASF_Prerecorded_e; + } else if( strstr(features, "broadcast")) { + printf("=====> ASF Live stream\n"); + return ASF_Live_e; + } else { + printf("=====> ASF Prerecorded\n"); + return ASF_Prerecorded_e; + } + } else { + if( (!strcasecmp(content_type, "audio/x-ms-wax")) || + (!strcasecmp(content_type, "audio/x-ms-wma")) || + (!strcasecmp(content_type, "video/x-ms-asf")) || + (!strcasecmp(content_type, "video/x-ms-afs")) || + (!strcasecmp(content_type, "video/x-ms-wvx")) || + (!strcasecmp(content_type, "video/x-ms-wmv")) || + (!strcasecmp(content_type, "video/x-ms-wma")) ) { + printf("=====> ASF Redirector\n"); + return ASF_Redirector_e; + } else { + printf("=====> ASF unknown content-type: %s\n", content_type ); + return ASF_Unknown_e; + } + } + return ASF_Unknown_e; +} + +HTTP_header_t * +asf_http_request(URL_t *url) { + HTTP_header_t *http_hdr; + char str[250]; + char *ptr; + char *request; + int i; + + int offset_hi=0, offset_lo=0, req_nb=1, length=0; + int asf_nb_stream; + + // Common header for all requests. + http_hdr = http_new_header(); + http_set_uri( http_hdr, url->file ); + http_set_field( http_hdr, "Accept: */*" ); + http_set_field( http_hdr, "User-Agent: NSPlayer/4.1.0.3856" ); + sprintf( str, "Host: %s:%d", url->hostname, url->port ); + http_set_field( http_hdr, str ); + http_set_field( http_hdr, "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}" ); + sprintf(str, + "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=%u", + offset_hi, offset_lo, req_nb, length ); + http_set_field( http_hdr, str ); + + switch( streaming_type ) { + case ASF_Live_e: + case ASF_Prerecorded_e: + http_set_field( http_hdr, "Pragma: xPlayStrm=1" ); + ptr = str; + ptr += sprintf( ptr, "Pragma: stream-switch-entry="); + +// FIXME: why do you need demuxer here? if you really need it, pass it as +// parameter. -- A'rpi + +#if 0 + for( i=0, asf_nb_stream=0 ; i<256 ; i++ ) { + // FIXME START + if( demuxer==NULL ) { + ptr += sprintf( ptr, " ffff:1:0" ); + asf_nb_stream = 1; + break; + } + // FIXME END + if( demuxer->a_streams[i] ) { + ptr += sprintf( ptr, " ffff:%d:0", i ); + asf_nb_stream++; + } + if( demuxer->v_streams[i] ) { + ptr += sprintf( ptr, " ffff:%d:0", i ); + asf_nb_stream++; + } + } +#endif + http_set_field( http_hdr, str ); + sprintf( str, "Pragma: stream-switch-count=%d", asf_nb_stream ); + http_set_field( http_hdr, str ); + break; + case ASF_Redirector_e: + break; + case ASF_Unknown_e: + // First request goes here. + break; + default: + printf("Unknown asf stream type\n"); + } + + http_set_field( http_hdr, "Connection: Close" ); + http_build_request( http_hdr ); + + return http_hdr; +} + +int +asf_http_parse_response( HTTP_header_t *http_hdr ) { + char *content_type, *pragma; + char features[64] = "\0"; + int len; + if( http_response_parse(http_hdr)<0 ) { + printf("Failed to parse HTTP response\n"); + return -1; + } + if( http_hdr->status_code!=200 ) { + printf("Server return %d:%s\n", http_hdr->status_code, http_hdr->reason_phrase); + return -1; + } + + content_type = http_get_field( http_hdr, "Content-Type"); + + pragma = http_get_field( http_hdr, "Pragma"); + while( pragma!=NULL ) { + char *comma_ptr=NULL; + char *end; + // The pragma line can get severals attributes + // separeted with a comma ','. + do { + if( !strncasecmp( pragma, "features=", 9) ) { + pragma += 9; + end = strstr( pragma, "," ); + if( end==NULL ) { + len = strlen(pragma); + } + len = MIN(end-pragma,sizeof(features)); + strncpy( features, pragma, len ); + features[len]='\0'; + break; + } + comma_ptr = strstr( pragma, "," ); + if( comma_ptr!=NULL ) { + pragma = comma_ptr+1; + if( pragma[0]==' ' ) pragma++; + } + } while( comma_ptr!=NULL ); + pragma = http_get_next_field( http_hdr ); + } + + streaming_type = asf_http_streaming_type( content_type, features ); + + if( http_hdr->body_size>0 ) { + asf_streaming( http_hdr->body, http_hdr->body_size, NULL); + } + + return 0; +} + +URL_t * +asf_http_ASX_redirect( HTTP_header_t *http_hdr ) { + URL_t *url_redirect=NULL; + printf("=========>> ASX parser not yet implemented <<==========\n"); + + printf("ASX=[%s]\n", http_hdr->body ); + + return url_redirect; +} + +int +asf_http_streaming_start( streaming_ctrl_t *streaming_ctrl ) { + HTTP_header_t *http_hdr=NULL; + URL_t *url_next=NULL; + URL_t *url = *(streaming_ctrl->url); + char buffer[BUFFER_SIZE]; + int i; + int fd = streaming_ctrl->fd_net; + int done=1; + +streaming_type = ASF_Live_e; + do { + if( fd>0 ) close( fd ); + + fd = connect2Server( url->hostname, url->port ); + if( fd<0 ) return -1; + + http_hdr = asf_http_request( url ); +printf("[%s]\n", http_hdr->buffer ); + write( fd, http_hdr->buffer, http_hdr->buffer_size ); +// http_free( http_hdr ); + + http_hdr = http_new_header(); + do { + i = readFromServer( fd, buffer, BUFFER_SIZE ); +printf("read: %d\n", i ); + if( i<0 ) { + perror("read"); + http_free( http_hdr ); + return -1; + } + http_response_append( http_hdr, buffer, i ); + } while( !http_is_header_entired( http_hdr ) ); +//http_hdr->buffer[http_hdr->buffer_len]='\0'; +//printf("[%s]\n", http_hdr->buffer ); + if( asf_http_parse_response(http_hdr)<0 ) { + printf("Failed to parse header\n"); + http_free( http_hdr ); + return -1; + } + switch( streaming_type ) { + case ASF_Live_e: + case ASF_Prerecorded_e: + if( http_hdr->body_size>0 ) { +printf("--- 0x%02X\n", streaming_ctrl->buffer ); + net_fifo_push( streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size ); + } else { + ASF_stream_chunck_t *ptr; + int ret; + i = readFromServer( fd, buffer, sizeof(ASF_stream_chunck_t) ); +printf("read: %d\n", i ); + ret = asf_streaming( buffer, i, NULL ); + net_fifo_push( streaming_ctrl->buffer, buffer, i ); + ptr = (ASF_stream_chunck_t*)buffer; + if( ret==ptr->size ) { + } + } +// done = 0; + break; + case ASF_Redirector_e: + url_next = asf_http_ASX_redirect( http_hdr ); + if( url_next==NULL ) { + printf("Failed to parse ASX file\n"); + close(fd); + http_free( http_hdr ); + return -1; + } + if( url_next->port==0 ) url_next->port=80; + url_free( url ); + url = url_next; + *(streaming_ctrl->url) = url_next; + url_next = NULL; + break; + case ASF_Unknown_e: + default: + printf("Unknown ASF streaming type\n"); + close(fd); + http_free( http_hdr ); + return -1; + } + + // Check if we got a redirect. + } while(!done); + + streaming_ctrl->fd_net = fd; + streaming_ctrl->streaming_read = asf_http_streaming_read; + streaming_ctrl->prebuffer_size = 10000; + streaming_ctrl->buffering = 1; + streaming_ctrl->status = streaming_playing_e; + + http_free( http_hdr ); + return fd; +} + |