mirror of https://github.com/mpv-player/mpv
558 lines
15 KiB
C
558 lines
15 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include "config.h"
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#include "url.h"
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#include "http.h"
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#include "asf.h"
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#include "network.h"
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#include "stream.h"
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typedef struct {
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ASF_StreamType_e streaming_type;
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int request;
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} asf_http_streaming_ctrl_t;
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#ifdef ARCH_X86
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#define ASF_LOAD_GUID_PREFIX(guid) (*(uint32_t *)(guid))
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#else
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#define ASF_LOAD_GUID_PREFIX(guid) \
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((guid)[3] << 24 | (guid)[2] << 16 | (guid)[1] << 8 | (guid)[0])
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#endif
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// ASF streaming support several network protocol.
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// One use UDP, not known, yet!
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// Another is HTTP, this one is known.
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// So for now, we use the HTTP protocol.
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//
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// We can try several protocol for asf streaming
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// * first the UDP protcol, if there is a firewall, UDP
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// packets will not come back, so the mmsu will failed.
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// * Then we can try TCP, but if there is a proxy for
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// internet connection, the TCP connection will not get
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// through
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// * Then we can try HTTP.
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int
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asf_streaming_start( stream_t *stream ) {
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char proto_s[10];
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int fd = -1;
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strncpy( proto_s, stream->streaming_ctrl->url->protocol, 10 );
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if( !strncasecmp( proto_s, "mms", 3) && strncasecmp( proto_s, "mmst", 4) ) {
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printf("Trying ASF/UDP...\n");
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//fd = asf_mmsu_streaming_start( stream );
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if( fd!=-1 ) return fd;
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printf(" ===> ASF/UDP failed\n");
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}
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if( !strncasecmp( proto_s, "mms", 3) ) {
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printf("Trying ASF/TCP...\n");
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//fd = asf_mmst_streaming_start( stream );
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if( fd!=-1 ) return fd;
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printf(" ===> ASF/TCP failed\n");
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}
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if( !strncasecmp( proto_s, "http", 4) || !strncasecmp( proto_s, "mms", 3) ) {
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printf("Trying ASF/HTTP...\n");
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fd = asf_http_streaming_start( stream );
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if( fd!=-1 ) return fd;
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printf(" ===> ASF/HTTP failed\n");
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}
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printf("Unknown protocol: %s\n", proto_s );
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return -1;
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}
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static int
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asf_streaming_parse_header(char* buffer,int size) {
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ASF_header_t asfh;
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ASF_obj_header_t objh;
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ASF_file_header_t fileh;
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int pos = 0;
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if(size < (int)sizeof(asfh)) {
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printf("Error chunk is too small\n");
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return -1;
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}
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memcpy(&asfh,buffer,sizeof(asfh));
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le2me_ASF_header_t(&asfh);
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if(size < (int)asfh.objh.size) {
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printf("Error chunk is too small\n");
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return -1;
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}
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if(asfh.cno > 256) {
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printf("Error sub chunks number is invalid\n");
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return -1;
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}
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pos += sizeof(asfh);
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while(size - pos >= (int)sizeof(objh)) {
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memcpy(&objh,buffer+pos,sizeof(objh));
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le2me_ASF_obj_header_t(&objh);
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if(ASF_LOAD_GUID_PREFIX(objh.guid) == 0x8CABDCA1) {
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pos += sizeof(objh);
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memcpy(&fileh,buffer + pos,sizeof(fileh));
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le2me_ASF_file_header_t(&fileh);
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return fileh.packetsize == fileh.packetsize2 ? fileh.packetsize : -1;
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} else {
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pos += objh.size;
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}
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}
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return -1;
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}
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int
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asf_http_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *streaming_ctrl ) {
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static ASF_stream_chunck_t chunk;
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int read,chunk_size = 0;
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static int rest = 0, drop_chunk = 0, waiting = 0;
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static int asf_packetsize = 0;
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while(1) {
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if (rest == 0 && waiting == 0) {
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read = 0;
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while(read < (int)sizeof(ASF_stream_chunck_t)){
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int r = nop_streaming_read( fd, ((char*)&chunk) + read,
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sizeof(ASF_stream_chunck_t)-read,
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streaming_ctrl );
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if(r < 0){
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printf("End of stream without a full chunk header\n");
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return -1;
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}
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read += r;
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}
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chunk_size = asf_streaming( (char*)&chunk, read, &drop_chunk );
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if(chunk_size < 0) {
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printf("Error while parsing chunk header\n");
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return -1;
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}
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chunk_size -= sizeof(ASF_stream_chunck_t);
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if(asf_packetsize && (!drop_chunk)) {
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if (asf_packetsize < chunk_size) {
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printf("Error chunk_size > asf_packetsize\n");
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return -1;
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}
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waiting = asf_packetsize;
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} else {
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waiting = chunk_size;
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}
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} else if (rest){
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chunk_size = rest;
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rest = 0;
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}
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read = 0;
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if ( waiting >= chunk_size) {
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if (chunk_size > size){
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rest = chunk_size - size;
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chunk_size = size;
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}
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while(read < chunk_size) {
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int got = nop_streaming_read( fd,buffer+read,chunk_size-read,streaming_ctrl );
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if(got < 0) {
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printf("Error while reading chunk EOF ?\n");
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return -1;
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}
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read += got;
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}
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waiting -= read;
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if (drop_chunk) continue;
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}
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if (rest == 0 && waiting > 0 && size-read > 0) {
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int s = MIN(waiting,size-read);
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memset(buffer+read,0,s);
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waiting -= s;
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read += s;
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}
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break;
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}
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if (chunk.type == 0x4824) { // Header
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static char* save_buffer = NULL;
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static int save_pos = 0,save_size = 0;
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if(rest > 0 || save_buffer) {
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if(save_buffer == NULL){
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save_size = read+rest;
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save_pos = 0;
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save_buffer = (char*)malloc(save_size);
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}
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memcpy(save_buffer+save_pos,buffer,MIN(read,save_size-save_pos));
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save_pos += MIN(read,save_size-save_pos);
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}
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if( rest == 0 ){
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if(save_buffer && save_pos != save_size){
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printf("Header buffer inconsitency\n");
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return -1;
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}
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asf_packetsize = asf_streaming_parse_header(save_buffer ? save_buffer : buffer,
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save_buffer ? save_pos : read);
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if(save_buffer) {
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free(save_buffer);
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save_buffer = NULL;
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}
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if(asf_packetsize < 0) {
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printf("Error during header parsing\n");
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return -1;
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}
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}
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}
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return read;
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}
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int
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asf_streaming(char *data, int length, int *drop_packet ) {
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ASF_stream_chunck_t *stream_chunck=(ASF_stream_chunck_t*)data;
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/*
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printf("ASF stream chunck size=%d\n", stream_chunck->size);
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printf("length: %d\n", length );
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printf("0x%02X\n", stream_chunck->type );
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*/
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if( data==NULL || length<=0 ) return -1;
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if( drop_packet!=NULL ) *drop_packet = 0;
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if( stream_chunck->size<8 ) {
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printf("Ahhhh, stream_chunck size is too small: %d\n", stream_chunck->size);
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return -1;
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}
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if( stream_chunck->size!=stream_chunck->size_confirm ) {
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printf("size_confirm mismatch!: %d %d\n", stream_chunck->size, stream_chunck->size_confirm);
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return -1;
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}
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/*
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printf(" type: 0x%02X\n", stream_chunck->type );
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printf(" size: %d (0x%02X)\n", stream_chunck->size, stream_chunck->size );
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printf(" sequence_number: 0x%04X\n", stream_chunck->sequence_number );
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printf(" unknown: 0x%02X\n", stream_chunck->unknown );
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printf(" size_confirm: 0x%02X\n", stream_chunck->size_confirm );
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*/
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switch(stream_chunck->type) {
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case 0x4324: // $C Clear ASF configuration
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printf("=====> Clearing ASF stream configuration!\n");
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if( drop_packet!=NULL ) *drop_packet = 1;
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return stream_chunck->size;
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break;
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case 0x4424: // $D Data follows
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// printf("=====> Data follows\n");
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break;
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case 0x4524: // $E Transfer complete
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printf("=====> Transfer complete\n");
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if( drop_packet!=NULL ) *drop_packet = 1;
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return stream_chunck->size;
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break;
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case 0x4824: // $H ASF header chunk follows
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printf("=====> ASF header chunk follows\n");
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break;
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default:
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printf("=====> Unknown stream type 0x%x\n", stream_chunck->type );
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}
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return stream_chunck->size+4;
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}
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int
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asf_http_streaming_seek( int fd, off_t pos, streaming_ctrl_t *streaming_ctrl ) {
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return -1;
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}
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int
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asf_http_streaming_type(char *content_type, char *features) {
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if( content_type==NULL ) return ASF_Unknown_e;
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if( !strcasecmp(content_type, "application/octet-stream") ) {
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if( features==NULL ) {
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printf("=====> ASF Prerecorded\n");
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return ASF_Prerecorded_e;
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} else if( strstr(features, "broadcast")) {
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printf("=====> ASF Live stream\n");
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return ASF_Live_e;
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} else {
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printf("=====> ASF Prerecorded\n");
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return ASF_Prerecorded_e;
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}
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} else {
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if( (!strcasecmp(content_type, "audio/x-ms-wax")) ||
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(!strcasecmp(content_type, "audio/x-ms-wma")) ||
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(!strcasecmp(content_type, "video/x-ms-asf")) ||
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(!strcasecmp(content_type, "video/x-ms-afs")) ||
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(!strcasecmp(content_type, "video/x-ms-wvx")) ||
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(!strcasecmp(content_type, "video/x-ms-wmv")) ||
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(!strcasecmp(content_type, "video/x-ms-wma")) ) {
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printf("=====> ASF Redirector\n");
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return ASF_Redirector_e;
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} else if( !strcasecmp(content_type, "text/plain") ) {
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printf("=====> ASF Plain text\n");
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return ASF_PlainText_e;
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} else {
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printf("=====> ASF unknown content-type: %s\n", content_type );
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return ASF_Unknown_e;
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}
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}
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return ASF_Unknown_e;
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}
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HTTP_header_t *
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//asf_http_request(URL_t *url) {
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asf_http_request(streaming_ctrl_t *streaming_ctrl) {
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HTTP_header_t *http_hdr;
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URL_t *url = streaming_ctrl->url;
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asf_http_streaming_ctrl_t *asf_http_ctrl = (asf_http_streaming_ctrl_t*)streaming_ctrl->data;
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char str[250];
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char *ptr;
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char *request;
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int i;
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int offset_hi=0, offset_lo=0, length=0;
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int asf_nb_stream;
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// Common header for all requests.
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http_hdr = http_new_header();
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http_set_uri( http_hdr, url->file );
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http_set_field( http_hdr, "Accept: */*" );
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http_set_field( http_hdr, "User-Agent: NSPlayer/4.1.0.3856" );
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sprintf( str, "Host: %s:%d", url->hostname, url->port );
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http_set_field( http_hdr, str );
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http_set_field( http_hdr, "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}" );
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sprintf(str,
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"Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=%u",
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offset_hi, offset_lo, asf_http_ctrl->request, length );
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http_set_field( http_hdr, str );
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switch( asf_http_ctrl->streaming_type ) {
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case ASF_Live_e:
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case ASF_Prerecorded_e:
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http_set_field( http_hdr, "Pragma: xPlayStrm=1" );
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ptr = str;
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ptr += sprintf( ptr, "Pragma: stream-switch-entry=");
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#if 0
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for( i=0, asf_nb_stream=0 ; i<256 ; i++ ) {
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// FIXME START
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if( demuxer==NULL ) {
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ptr += sprintf( ptr, " ffff:1:0" );
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asf_nb_stream = 1;
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break;
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}
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// FIXME END
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if( demuxer->a_streams[i] ) {
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ptr += sprintf( ptr, " ffff:%d:0", i );
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asf_nb_stream++;
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}
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if( demuxer->v_streams[i] ) {
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ptr += sprintf( ptr, " ffff:%d:0", i );
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asf_nb_stream++;
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}
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}
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#endif
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http_set_field( http_hdr, str );
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sprintf( str, "Pragma: stream-switch-count=%d", asf_nb_stream );
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http_set_field( http_hdr, str );
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break;
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case ASF_Redirector_e:
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break;
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case ASF_Unknown_e:
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// First request goes here.
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break;
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default:
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printf("Unknown asf stream type\n");
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}
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http_set_field( http_hdr, "Connection: Close" );
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http_build_request( http_hdr );
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return http_hdr;
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}
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int
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asf_http_parse_response( HTTP_header_t *http_hdr ) {
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char *content_type, *pragma;
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char features[64] = "\0";
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int len;
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if( http_response_parse(http_hdr)<0 ) {
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printf("Failed to parse HTTP response\n");
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return -1;
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}
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if( http_hdr->status_code!=200 ) {
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printf("Server return %d:%s\n", http_hdr->status_code, http_hdr->reason_phrase);
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return -1;
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}
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content_type = http_get_field( http_hdr, "Content-Type");
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//printf("Content-Type: [%s]\n", content_type);
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pragma = http_get_field( http_hdr, "Pragma");
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while( pragma!=NULL ) {
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char *comma_ptr=NULL;
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char *end;
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//printf("Pragma: [%s]\n", pragma );
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// The pragma line can get severals attributes
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// separeted with a comma ','.
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do {
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if( !strncasecmp( pragma, "features=", 9) ) {
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pragma += 9;
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end = strstr( pragma, "," );
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if( end==NULL ) {
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int s = strlen(pragma);
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if(s > sizeof(features)) {
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printf("ASF HTTP PARSE WARNING : Pragma %s cuted from %d bytes to %d\n",pragma,s,sizeof(features));
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len = sizeof(features);
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} else
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len = s;
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} else
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len = MIN(end-pragma,sizeof(features));
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strncpy( features, pragma, len );
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features[len]='\0';
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break;
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}
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comma_ptr = strstr( pragma, "," );
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if( comma_ptr!=NULL ) {
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pragma = comma_ptr+1;
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if( pragma[0]==' ' ) pragma++;
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}
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} while( comma_ptr!=NULL );
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pragma = http_get_next_field( http_hdr );
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}
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return asf_http_streaming_type( content_type, features );
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}
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URL_t *
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asf_http_ASX_redirect( HTTP_header_t *http_hdr ) {
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URL_t *url_redirect=NULL;
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printf("=========>> ASX parser not yet implemented <<==========\n");
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printf("ASX=[%s]\n", http_hdr->body );
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return url_redirect;
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}
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int
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asf_http_streaming_start( stream_t *stream ) {
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HTTP_header_t *http_hdr=NULL;
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URL_t *url_next=NULL;
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URL_t *url = stream->streaming_ctrl->url;
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asf_http_streaming_ctrl_t *asf_http_ctrl;
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ASF_StreamType_e streaming_type;
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char buffer[BUFFER_SIZE];
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unsigned int port;
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int i, ret;
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int fd = stream->fd;
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int done;
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asf_http_ctrl = (asf_http_streaming_ctrl_t*)malloc(sizeof(asf_http_streaming_ctrl_t));
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if( asf_http_ctrl==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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asf_http_ctrl->streaming_type = ASF_Unknown_e;
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asf_http_ctrl->request = 1;
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stream->streaming_ctrl->data = (void*)asf_http_ctrl;
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//streaming_type = ASF_Live_e;
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do {
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done = 1;
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if( fd>0 ) close( fd );
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if( url->port==0 ) url->port = 80;
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fd = connect2Server( url->hostname, url->port );
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if( fd<0 ) return -1;
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//http_hdr = asf_http_request( url );
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http_hdr = asf_http_request( stream->streaming_ctrl );
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printf("Request [%s]\n", http_hdr->buffer );
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for(i=0; i < http_hdr->buffer_size ; ) {
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int r = write( fd, http_hdr->buffer+i, http_hdr->buffer_size-i );
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if(r <0) {
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printf("Socket write error : %s\n",strerror(errno));
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return -1;
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}
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i += r;
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}
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// http_free( http_hdr );
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http_hdr = http_new_header();
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do {
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i = read( 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_entire( http_hdr ) );
|
|
http_hdr->buffer[http_hdr->buffer_size]='\0';
|
|
printf("Response [%s]\n", http_hdr->buffer );
|
|
streaming_type = asf_http_parse_response(http_hdr);
|
|
if( streaming_type<0 ) {
|
|
printf("Failed to parse header\n");
|
|
http_free( http_hdr );
|
|
return -1;
|
|
}
|
|
asf_http_ctrl->streaming_type = streaming_type;
|
|
switch( streaming_type ) {
|
|
case ASF_Live_e:
|
|
case ASF_Prerecorded_e:
|
|
case ASF_PlainText_e:
|
|
if( http_hdr->body_size>0 ) {
|
|
if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
|
|
http_free( http_hdr );
|
|
return -1;
|
|
}
|
|
}
|
|
if( asf_http_ctrl->request==1 ) {
|
|
// First request, we only got the ASF header.
|
|
// We can redo the request and ask for all the stream.
|
|
// TODO: Here goes the code to read the ASF header and get the proper values.
|
|
asf_http_ctrl->request++;
|
|
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;
|
|
}
|
|
url_free( stream->streaming_ctrl->url );
|
|
stream->streaming_ctrl->url = url_next;
|
|
url = url_next;
|
|
done = 0;
|
|
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);
|
|
|
|
stream->fd= fd;
|
|
if( streaming_type==ASF_PlainText_e ) {
|
|
stream->streaming_ctrl->streaming_read = nop_streaming_read;
|
|
stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
|
|
} else {
|
|
stream->streaming_ctrl->streaming_read = asf_http_streaming_read;
|
|
stream->streaming_ctrl->streaming_seek = asf_http_streaming_seek;
|
|
}
|
|
stream->streaming_ctrl->prebuffer_size = 20000;
|
|
stream->streaming_ctrl->buffering = 1;
|
|
stream->streaming_ctrl->status = streaming_playing_e;
|
|
|
|
http_free( http_hdr );
|
|
return fd;
|
|
}
|
|
|