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mpv/stream/asf_streaming.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifndef HAVE_WINSOCK2
#define closesocket close
#else
#include <winsock2.h>
#endif
#include "url.h"
#include "http.h"
#include "libmpdemux/asf.h"
#include "stream.h"
#include "libmpdemux/demuxer.h"
#include "network.h"
#include "tcp.h"
#include "libavutil/intreadwrite.h"
#include "libmpdemux/asfguid.h"
extern int network_bandwidth;
int asf_mmst_streaming_start( stream_t *stream );
static int asf_http_streaming_start(stream_t *stream, int *demuxer_type);
static int asf_read_wrapper(int fd, void *buffer, int len, streaming_ctrl_t *stream_ctrl) {
uint8_t *buf = buffer;
while (len > 0) {
int got = nop_streaming_read(fd, buf, len, stream_ctrl);
if (got <= 0) {
mp_msg(MSGT_NETWORK, MSGL_ERR, MSGTR_MPDEMUX_ASF_ErrReadingNetworkStream);
return got;
}
buf += got;
len -= got;
}
return 1;
}
// We can try several protocol for asf streaming
// * first the UDP protcol, if there is a firewall, UDP
// packets will not come back, so the mmsu will fail.
// * Then we can try TCP, but if there is a proxy for
// internet connection, the TCP connection will not get
// through
// * Then we can try HTTP.
//
// Note: Using WMP sequence MMSU then MMST and then HTTP.
static int asf_streaming_start( stream_t *stream, int *demuxer_type) {
char *proto = stream->streaming_ctrl->url->protocol;
int fd = -1;
int port = stream->streaming_ctrl->url->port;
// Is protocol mms or mmsu?
if (!strcasecmp(proto, "mmsu") || !strcasecmp(proto, "mms"))
{
mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/UDP...\n");
//fd = asf_mmsu_streaming_start( stream );
if( fd>-1 ) return fd; //mmsu support is not implemented yet - using this code
mp_msg(MSGT_NETWORK,MSGL_V," ===> ASF/UDP failed\n");
if( fd==-2 ) return -1;
}
//Is protocol mms or mmst?
if (!strcasecmp(proto, "mmst") || !strcasecmp(proto, "mms"))
{
mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/TCP...\n");
fd = asf_mmst_streaming_start( stream );
stream->streaming_ctrl->url->port = port;
if( fd>-1 ) return fd;
mp_msg(MSGT_NETWORK,MSGL_V," ===> ASF/TCP failed\n");
if( fd==-2 ) return -1;
}
//Is protocol http, http_proxy, or mms?
if (!strcasecmp(proto, "http_proxy") || !strcasecmp(proto, "http") ||
!strcasecmp(proto, "mms") || !strcasecmp(proto, "mmshttp"))
{
mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/HTTP...\n");
fd = asf_http_streaming_start( stream, demuxer_type );
stream->streaming_ctrl->url->port = port;
if( fd>-1 ) return fd;
mp_msg(MSGT_NETWORK,MSGL_V," ===> ASF/HTTP failed\n");
if( fd==-2 ) return -1;
}
//everything failed
return -1;
}
static int asf_streaming(ASF_stream_chunck_t *stream_chunck, int *drop_packet ) {
/*
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( stream_chunck->size<8 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_StreamChunkSize2Small, stream_chunck->size);
return -1;
}
if( stream_chunck->size!=stream_chunck->size_confirm ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_SizeConfirmMismatch, 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 ASF_STREAMING_CLEAR: // $C Clear ASF configuration
mp_msg(MSGT_NETWORK,MSGL_V,"=====> Clearing ASF stream configuration!\n");
if( drop_packet!=NULL ) *drop_packet = 1;
return stream_chunck->size;
break;
case ASF_STREAMING_DATA: // $D Data follows
// printf("=====> Data follows\n");
break;
case ASF_STREAMING_END_TRANS: // $E Transfer complete
mp_msg(MSGT_NETWORK,MSGL_V,"=====> Transfer complete\n");
if( drop_packet!=NULL ) *drop_packet = 1;
return stream_chunck->size;
break;
case ASF_STREAMING_HEADER: // $H ASF header chunk follows
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF header chunk follows\n");
break;
default:
mp_msg(MSGT_NETWORK,MSGL_V,"=====> Unknown stream type 0x%x\n", stream_chunck->type );
}
return stream_chunck->size+4;
}
extern int audio_id;
extern int video_id;
static void close_s(stream_t *stream) {
close(stream->fd);
stream->fd=-1;
}
static int max_idx(int s_count, int *s_rates, int bound) {
int i, best = -1, rate = -1;
for (i = 0; i < s_count; i++) {
if (s_rates[i] > rate && s_rates[i] <= bound) {
rate = s_rates[i];
best = i;
}
}
return best;
}
static int asf_streaming_parse_header(int fd, streaming_ctrl_t* streaming_ctrl) {
ASF_stream_chunck_t chunk;
asf_http_streaming_ctrl_t* asf_ctrl = streaming_ctrl->data;
char* buffer=NULL, *chunk_buffer=NULL;
int i,r,size,pos = 0;
int start;
int buffer_size = 0;
int chunk_size2read = 0;
int bw = streaming_ctrl->bandwidth;
int *v_rates = NULL, *a_rates = NULL;
int v_rate = 0, a_rate = 0, a_idx = -1, v_idx = -1;
if(asf_ctrl == NULL) return -1;
// The ASF header can be in several network chunks. For example if the content description
// is big, the ASF header will be split in 2 network chunk.
// So we need to retrieve all the chunk before starting to parse the header.
do {
if (asf_read_wrapper(fd, &chunk, sizeof(ASF_stream_chunck_t), streaming_ctrl) <= 0)
return -1;
// Endian handling of the stream chunk
le2me_ASF_stream_chunck_t(&chunk);
size = asf_streaming( &chunk, &r) - sizeof(ASF_stream_chunck_t);
if(r) mp_msg(MSGT_NETWORK,MSGL_WARN,MSGTR_MPDEMUX_ASF_WarnDropHeader);
if(size < 0){
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrorParsingChunkHeader);
return -1;
}
if (chunk.type != ASF_STREAMING_HEADER) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_NoHeaderAtFirstChunk);
return -1;
}
// audit: do not overflow buffer_size
if (size > SIZE_MAX - buffer_size) return -1;
buffer = malloc(size+buffer_size);
if(buffer == NULL) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MPDEMUX_ASF_BufferMallocFailed,size+buffer_size);
return -1;
}
if( chunk_buffer!=NULL ) {
memcpy( buffer, chunk_buffer, buffer_size );
free( chunk_buffer );
}
chunk_buffer = buffer;
buffer += buffer_size;
buffer_size += size;
if (asf_read_wrapper(fd, buffer, size, streaming_ctrl) <= 0)
return -1;
if( chunk_size2read==0 ) {
ASF_header_t *asfh = (ASF_header_t *)buffer;
if(size < (int)sizeof(ASF_header_t)) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrChunk2Small);
return -1;
} else mp_msg(MSGT_NETWORK,MSGL_DBG2,"Got chunk\n");
chunk_size2read = AV_RL64(&asfh->objh.size);
mp_msg(MSGT_NETWORK,MSGL_DBG2,"Size 2 read=%d\n", chunk_size2read);
}
} while( buffer_size<chunk_size2read);
buffer = chunk_buffer;
size = buffer_size;
start = sizeof(ASF_header_t);
pos = find_asf_guid(buffer, asf_file_header_guid, start, size);
if (pos >= 0) {
ASF_file_header_t *fileh = (ASF_file_header_t *) &buffer[pos];
pos += sizeof(ASF_file_header_t);
if (pos > size) goto len_err_out;
/*
if(fileh.packetsize != fileh.packetsize2) {
printf("Error packetsize check don't match\n");
return -1;
}
*/
asf_ctrl->packet_size = AV_RL32(&fileh->max_packet_size);
// before playing.
// preroll: time in ms to bufferize before playing
streaming_ctrl->prebuffer_size = (unsigned int)(((double)fileh->preroll/1000.0)*((double)fileh->max_bitrate/8.0));
}
pos = start;
while ((pos = find_asf_guid(buffer, asf_stream_header_guid, pos, size)) >= 0)
{
ASF_stream_header_t *streamh = (ASF_stream_header_t *)&buffer[pos];
pos += sizeof(ASF_stream_header_t);
if (pos > size) goto len_err_out;
switch(ASF_LOAD_GUID_PREFIX(streamh->type)) {
case 0xF8699E40 : // audio stream
if(asf_ctrl->audio_streams == NULL){
asf_ctrl->audio_streams = malloc(sizeof(int));
asf_ctrl->n_audio = 1;
} else {
asf_ctrl->n_audio++;
asf_ctrl->audio_streams = realloc(asf_ctrl->audio_streams,
asf_ctrl->n_audio*sizeof(int));
}
asf_ctrl->audio_streams[asf_ctrl->n_audio-1] = AV_RL16(&streamh->stream_no);
break;
case 0xBC19EFC0 : // video stream
if(asf_ctrl->video_streams == NULL){
asf_ctrl->video_streams = malloc(sizeof(int));
asf_ctrl->n_video = 1;
} else {
asf_ctrl->n_video++;
asf_ctrl->video_streams = realloc(asf_ctrl->video_streams,
asf_ctrl->n_video*sizeof(int));
}
asf_ctrl->video_streams[asf_ctrl->n_video-1] = AV_RL16(&streamh->stream_no);
break;
}
}
// always allocate to avoid lots of ifs later
v_rates = calloc(asf_ctrl->n_video, sizeof(int));
a_rates = calloc(asf_ctrl->n_audio, sizeof(int));
pos = find_asf_guid(buffer, asf_stream_group_guid, start, size);
if (pos >= 0) {
// stream bitrate properties object
int stream_count;
char *ptr = &buffer[pos];
char *end = &buffer[size];
mp_msg(MSGT_NETWORK, MSGL_V, "Stream bitrate properties object\n");
if (ptr + 2 > end) goto len_err_out;
stream_count = AV_RL16(ptr);
ptr += 2;
mp_msg(MSGT_NETWORK, MSGL_V, " stream count=[0x%x][%u]\n",
stream_count, stream_count );
for( i=0 ; i<stream_count ; i++ ) {
uint32_t rate;
int id;
int j;
if (ptr + 6 > end) goto len_err_out;
id = AV_RL16(ptr);
ptr += 2;
rate = AV_RL32(ptr);
ptr += 4;
mp_msg(MSGT_NETWORK, MSGL_V,
" stream id=[0x%x][%u]\n", id, id);
mp_msg(MSGT_NETWORK, MSGL_V,
" max bitrate=[0x%x][%u]\n", rate, rate);
for (j = 0; j < asf_ctrl->n_video; j++) {
if (id == asf_ctrl->video_streams[j]) {
mp_msg(MSGT_NETWORK, MSGL_V, " is video stream\n");
v_rates[j] = rate;
break;
}
}
for (j = 0; j < asf_ctrl->n_audio; j++) {
if (id == asf_ctrl->audio_streams[j]) {
mp_msg(MSGT_NETWORK, MSGL_V, " is audio stream\n");
a_rates[j] = rate;
break;
}
}
}
}
free(buffer);
// automatic stream selection based on bandwidth
if (bw == 0) bw = INT_MAX;
mp_msg(MSGT_NETWORK, MSGL_V, "Max bandwidth set to %d\n", bw);
if (asf_ctrl->n_audio) {
// find lowest-bitrate audio stream
a_rate = a_rates[0];
a_idx = 0;
for (i = 0; i < asf_ctrl->n_audio; i++) {
if (a_rates[i] < a_rate) {
a_rate = a_rates[i];
a_idx = i;
}
}
if (max_idx(asf_ctrl->n_video, v_rates, bw - a_rate) < 0) {
// both audio and video are not possible, try video only next
a_idx = -1;
a_rate = 0;
}
}
// find best video stream
v_idx = max_idx(asf_ctrl->n_video, v_rates, bw - a_rate);
if (v_idx >= 0)
v_rate = v_rates[v_idx];
// find best audio stream
a_idx = max_idx(asf_ctrl->n_audio, a_rates, bw - v_rate);
free(v_rates);
free(a_rates);
if (a_idx < 0 && v_idx < 0) {
mp_msg(MSGT_NETWORK, MSGL_FATAL, MSGTR_MPDEMUX_ASF_Bandwidth2SmallCannotPlay);
return -1;
}
if (audio_id > 0)
// a audio stream was forced
asf_ctrl->audio_id = audio_id;
else if (a_idx >= 0)
asf_ctrl->audio_id = asf_ctrl->audio_streams[a_idx];
else if (asf_ctrl->n_audio) {
mp_msg(MSGT_NETWORK, MSGL_WARN, MSGTR_MPDEMUX_ASF_Bandwidth2SmallDeselectedAudio);
audio_id = -2;
}
if (video_id > 0)
// a video stream was forced
asf_ctrl->video_id = video_id;
else if (v_idx >= 0)
asf_ctrl->video_id = asf_ctrl->video_streams[v_idx];
else if (asf_ctrl->n_video) {
mp_msg(MSGT_NETWORK, MSGL_WARN, MSGTR_MPDEMUX_ASF_Bandwidth2SmallDeselectedVideo);
video_id = -2;
}
return 1;
len_err_out:
mp_msg(MSGT_NETWORK, MSGL_FATAL, MSGTR_MPDEMUX_ASF_InvalidLenInHeader);
if (buffer) free(buffer);
if (v_rates) free(v_rates);
if (a_rates) free(a_rates);
return -1;
}
static int asf_http_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *streaming_ctrl ) {
static ASF_stream_chunck_t chunk;
int read,chunk_size = 0;
static int rest = 0, drop_chunk = 0, waiting = 0;
asf_http_streaming_ctrl_t *asf_http_ctrl = (asf_http_streaming_ctrl_t*)streaming_ctrl->data;
while(1) {
if (rest == 0 && waiting == 0) {
if (asf_read_wrapper(fd, &chunk, sizeof(ASF_stream_chunck_t), streaming_ctrl) <= 0)
return -1;
// Endian handling of the stream chunk
le2me_ASF_stream_chunck_t(&chunk);
chunk_size = asf_streaming( &chunk, &drop_chunk );
if(chunk_size < 0) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrorParsingChunkHeader);
return -1;
}
chunk_size -= sizeof(ASF_stream_chunck_t);
if(chunk.type != ASF_STREAMING_HEADER && (!drop_chunk)) {
if (asf_http_ctrl->packet_size < chunk_size) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrChunkBiggerThanPacket);
return -1;
}
waiting = asf_http_ctrl->packet_size;
} else {
waiting = chunk_size;
}
} else if (rest){
chunk_size = rest;
rest = 0;
}
read = 0;
if ( waiting >= chunk_size) {
if (chunk_size > size){
rest = chunk_size - size;
chunk_size = size;
}
if (asf_read_wrapper(fd, buffer, chunk_size, streaming_ctrl) <= 0)
return -1;
read = chunk_size;
waiting -= read;
if (drop_chunk) continue;
}
if (rest == 0 && waiting > 0 && size-read > 0) {
int s = FFMIN(waiting,size-read);
memset(buffer+read,0,s);
waiting -= s;
read += s;
}
break;
}
return read;
}
static int asf_http_streaming_seek( int fd, off_t pos, streaming_ctrl_t *streaming_ctrl ) {
return -1;
// to shut up gcc warning
fd++;
pos++;
streaming_ctrl=NULL;
}
static int asf_header_check( HTTP_header_t *http_hdr ) {
ASF_obj_header_t *objh;
if( http_hdr==NULL ) return -1;
if( http_hdr->body==NULL || http_hdr->body_size<sizeof(ASF_obj_header_t) ) return -1;
objh = (ASF_obj_header_t*)http_hdr->body;
if( ASF_LOAD_GUID_PREFIX(objh->guid)==0x75B22630 ) return 0;
return -1;
}
static int asf_http_streaming_type(char *content_type, char *features, HTTP_header_t *http_hdr ) {
if( content_type==NULL ) return ASF_Unknown_e;
if( !strcasecmp(content_type, "application/octet-stream") ||
!strcasecmp(content_type, "application/vnd.ms.wms-hdr.asfv1") || // New in Corona, first request
!strcasecmp(content_type, "application/x-mms-framed") || // New in Corana, second request
!strcasecmp(content_type, "video/x-ms-asf")) {
if( strstr(features, "broadcast") ) {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Live stream\n");
return ASF_Live_e;
} else {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Prerecorded\n");
return ASF_Prerecorded_e;
}
} else {
// Ok in a perfect world, web servers should be well configured
// so we could used mime type to know the stream type,
// but guess what? All of them are not well configured.
// So we have to check for an asf header :(, but it works :p
if( http_hdr->body_size>sizeof(ASF_obj_header_t) ) {
if( asf_header_check( http_hdr )==0 ) {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Plain text\n");
return ASF_PlainText_e;
} else if( (!strcasecmp(content_type, "text/html")) ) {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> HTML, MPlayer is not a browser...yet!\n");
return ASF_Unknown_e;
} else {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Redirector\n");
return ASF_Redirector_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-wmv")) ||
(!strcasecmp(content_type, "video/x-ms-wma")) ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ASFRedirector);
return ASF_Redirector_e;
} else if( !strcasecmp(content_type, "text/plain") ) {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Plain text\n");
return ASF_PlainText_e;
} else {
mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF unknown content-type: %s\n", content_type );
return ASF_Unknown_e;
}
}
}
return ASF_Unknown_e;
}
static HTTP_header_t *asf_http_request(streaming_ctrl_t *streaming_ctrl) {
HTTP_header_t *http_hdr;
URL_t *url = NULL;
URL_t *server_url = NULL;
asf_http_streaming_ctrl_t *asf_http_ctrl;
char str[250];
char *ptr;
int i, enable;
int offset_hi=0, offset_lo=0, length=0;
int asf_nb_stream=0, stream_id;
// Sanity check
if( streaming_ctrl==NULL ) return NULL;
url = streaming_ctrl->url;
asf_http_ctrl = (asf_http_streaming_ctrl_t*)streaming_ctrl->data;
if( url==NULL || asf_http_ctrl==NULL ) return NULL;
// Common header for all requests.
http_hdr = http_new_header();
http_set_field( http_hdr, "Accept: */*" );
http_set_field( http_hdr, "User-Agent: NSPlayer/4.1.0.3856" );
http_add_basic_authentication( http_hdr, url->username, url->password );
// Check if we are using a proxy
if( !strcasecmp( url->protocol, "http_proxy" ) ) {
server_url = url_new( (url->file)+1 );
if( server_url==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_InvalidProxyURL);
http_free( http_hdr );
return NULL;
}
http_set_uri( http_hdr, server_url->url );
sprintf( str, "Host: %.220s:%d", server_url->hostname, server_url->port );
url_free( server_url );
} else {
http_set_uri( http_hdr, url->file );
sprintf( str, "Host: %.220s:%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, asf_http_ctrl->request, length );
http_set_field( http_hdr, str );
switch( asf_http_ctrl->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=");
if(asf_http_ctrl->n_audio > 0) {
for( i=0; i<asf_http_ctrl->n_audio ; i++ ) {
stream_id = asf_http_ctrl->audio_streams[i];
if(stream_id == asf_http_ctrl->audio_id) {
enable = 0;
} else {
enable = 2;
continue;
}
asf_nb_stream++;
ptr += sprintf(ptr, "ffff:%x:%d ", stream_id, enable);
}
}
if(asf_http_ctrl->n_video > 0) {
for( i=0; i<asf_http_ctrl->n_video ; i++ ) {
stream_id = asf_http_ctrl->video_streams[i];
if(stream_id == asf_http_ctrl->video_id) {
enable = 0;
} else {
enable = 2;
continue;
}
asf_nb_stream++;
ptr += sprintf(ptr, "ffff:%x:%d ", stream_id, enable);
}
}
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:
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_UnknownASFStreamType);
}
http_set_field( http_hdr, "Connection: Close" );
http_build_request( http_hdr );
return http_hdr;
}
static int asf_http_parse_response(asf_http_streaming_ctrl_t *asf_http_ctrl, HTTP_header_t *http_hdr ) {
char *content_type, *pragma;
char features[64] = "\0";
size_t len;
if( http_response_parse(http_hdr)<0 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_Failed2ParseHTTPResponse);
return -1;
}
switch( http_hdr->status_code ) {
case 200:
break;
case 401: // Authentication required
return ASF_Authenticate_e;
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ServerReturn, http_hdr->status_code, http_hdr->reason_phrase);
return -1;
}
content_type = http_get_field( http_hdr, "Content-Type");
//printf("Content-Type: [%s]\n", content_type);
pragma = http_get_field( http_hdr, "Pragma");
while( pragma!=NULL ) {
char *comma_ptr=NULL;
char *end;
//printf("Pragma: [%s]\n", pragma );
// 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);
} else {
len = (unsigned int)(end-pragma);
}
if(len > sizeof(features) - 1) {
mp_msg(MSGT_NETWORK,MSGL_WARN,MSGTR_MPDEMUX_ASF_ASFHTTPParseWarnCuttedPragma,pragma,len,sizeof(features) - 1);
len = sizeof(features) - 1;
}
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 );
}
asf_http_ctrl->streaming_type = asf_http_streaming_type( content_type, features, http_hdr );
return 0;
}
static int asf_http_streaming_start( stream_t *stream, int *demuxer_type ) {
HTTP_header_t *http_hdr=NULL;
URL_t *url = stream->streaming_ctrl->url;
asf_http_streaming_ctrl_t *asf_http_ctrl;
char buffer[BUFFER_SIZE];
int i, ret;
int fd = stream->fd;
int done;
int auth_retry = 0;
asf_http_ctrl = malloc(sizeof(asf_http_streaming_ctrl_t));
if( asf_http_ctrl==NULL ) {
mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
return -1;
}
asf_http_ctrl->streaming_type = ASF_Unknown_e;
asf_http_ctrl->request = 1;
asf_http_ctrl->audio_streams = asf_http_ctrl->video_streams = NULL;
asf_http_ctrl->n_audio = asf_http_ctrl->n_video = 0;
stream->streaming_ctrl->data = (void*)asf_http_ctrl;
do {
done = 1;
if( fd>0 ) closesocket( fd );
if( !strcasecmp( url->protocol, "http_proxy" ) ) {
if( url->port==0 ) url->port = 8080;
} else {
if( url->port==0 ) url->port = 80;
}
fd = connect2Server( url->hostname, url->port, 1);
if( fd<0 ) return fd;
http_hdr = asf_http_request( stream->streaming_ctrl );
mp_msg(MSGT_NETWORK,MSGL_DBG2,"Request [%s]\n", http_hdr->buffer );
for(i=0; i < (int)http_hdr->buffer_size ; ) {
int r = send( fd, http_hdr->buffer+i, http_hdr->buffer_size-i, 0 );
if(r <0) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_SocketWriteError,strerror(errno));
goto err_out;
}
i += r;
}
http_free( http_hdr );
http_hdr = http_new_header();
do {
i = recv( fd, buffer, BUFFER_SIZE, 0 );
//printf("read: %d\n", i );
if( i<=0 ) {
perror("read");
goto err_out;
}
http_response_append( http_hdr, buffer, i );
} while( !http_is_header_entire( http_hdr ) );
if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
http_hdr->buffer[http_hdr->buffer_size]='\0';
mp_msg(MSGT_NETWORK,MSGL_DBG2,"Response [%s]\n", http_hdr->buffer );
}
ret = asf_http_parse_response(asf_http_ctrl, http_hdr);
if( ret<0 ) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_HeaderParseFailed);
goto err_out;
}
switch( asf_http_ctrl->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 ) {
goto err_out;
}
}
if( asf_http_ctrl->request==1 ) {
if( asf_http_ctrl->streaming_type!=ASF_PlainText_e ) {
// First request, we only got the ASF header.
ret = asf_streaming_parse_header(fd,stream->streaming_ctrl);
if(ret < 0) goto err_out;
if(asf_http_ctrl->n_audio == 0 && asf_http_ctrl->n_video == 0) {
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_NoStreamFound);
goto err_out;
}
asf_http_ctrl->request++;
done = 0;
} else {
done = 1;
}
}
break;
case ASF_Redirector_e:
if( http_hdr->body_size>0 ) {
if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
goto err_out;
}
}
*demuxer_type = DEMUXER_TYPE_PLAYLIST;
done = 1;
break;
case ASF_Authenticate_e:
if( http_authenticate( http_hdr, url, &auth_retry)<0 ) return -1;
asf_http_ctrl->streaming_type = ASF_Unknown_e;
done = 0;
break;
case ASF_Unknown_e:
default:
mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_UnknownASFStreamingType);
goto err_out;
}
// Check if we got a redirect.
} while(!done);
stream->fd = fd;
if( asf_http_ctrl->streaming_type==ASF_PlainText_e || asf_http_ctrl->streaming_type==ASF_Redirector_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->buffering = 1;
}
stream->streaming_ctrl->status = streaming_playing_e;
stream->close = close_s;
http_free( http_hdr );
return 0;
err_out:
if (fd > 0)
closesocket(fd);
stream->fd = -1;
http_free(http_hdr);
return -1;
}
static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
URL_t *url;
stream->streaming_ctrl = streaming_ctrl_new();
if( stream->streaming_ctrl==NULL ) {
return STREAM_ERROR;
}
stream->streaming_ctrl->bandwidth = network_bandwidth;
url = url_new(stream->url);
stream->streaming_ctrl->url = check4proxies(url);
url_free(url);
mp_msg(MSGT_OPEN, MSGL_INFO, MSGTR_MPDEMUX_ASF_InfoStreamASFURL, stream->url);
if((!strncmp(stream->url, "http", 4)) && (*file_format!=DEMUXER_TYPE_ASF && *file_format!=DEMUXER_TYPE_UNKNOWN)) {
streaming_ctrl_free(stream->streaming_ctrl);
stream->streaming_ctrl = NULL;
return STREAM_UNSUPPORTED;
}
if(asf_streaming_start(stream, file_format) < 0) {
mp_msg(MSGT_OPEN, MSGL_ERR, MSGTR_MPDEMUX_ASF_StreamingFailed);
streaming_ctrl_free(stream->streaming_ctrl);
stream->streaming_ctrl = NULL;
return STREAM_UNSUPPORTED;
}
if (*file_format != DEMUXER_TYPE_PLAYLIST)
*file_format = DEMUXER_TYPE_ASF;
stream->type = STREAMTYPE_STREAM;
fixup_network_stream_cache(stream);
return STREAM_OK;
}
const stream_info_t stream_info_asf = {
"mms and mms over http streaming",
"null",
"Bertrand, Reimar Doeffinger, Albeu",
"originally based on work by Majormms (is that code still there?)",
open_s,
{"mms", "mmsu", "mmst", "http", "http_proxy", "mmshttp", NULL},
NULL,
0 // Urls are an option string
};
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