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mpv/asf_streaming.c

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#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;
}
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