static int Open( vlc_object_t *p_this )
{
stream_t *s = (stream_t*)p_this;
stream_sys_t *p_sys;
if( !isSmoothStreaming( s ) || s->psz_url == NULL )
return VLC_EGENERIC;
msg_Info( p_this, "Smooth Streaming (%s)", s->psz_url );
s->p_sys = p_sys = calloc( 1, sizeof(*p_sys ) );
if( unlikely( p_sys == NULL ) )
return VLC_ENOMEM;
char *uri = strdup( s->psz_url );
if( unlikely( uri == NULL ) )
{
free( p_sys );
return VLC_ENOMEM;
}
/* remove the last part of the url */
char *pos = strrchr( uri, '/');
*pos = '\0';
p_sys->download.base_url = uri;
ARRAY_INIT( p_sys->sms );
ARRAY_INIT( p_sys->sms_selected );
/* Parse SMS ismc content. */
if( parse_Manifest( s ) != VLC_SUCCESS )
{
SysCleanup( p_sys );
free( p_sys );
return VLC_EGENERIC;
}
if( !p_sys->vod_duration )
p_sys->b_live = true;
/* Choose first video / audio / subtitle stream available */
sms_stream_t *selected = NULL;
FOREACH_ARRAY( sms_stream_t *sms, p_sys->sms );
selected = SMS_GET_SELECTED_ST( sms->type );
if( !selected )
ARRAY_APPEND( p_sys->sms_selected, sms );
FOREACH_END();
/* Choose lowest quality for the first chunks */
FOREACH_ARRAY( sms_stream_t *sms, p_sys->sms );
quality_level_t *wanted = NULL;
if ( sms->qlevels.i_size )
{
wanted = sms->qlevels.p_elems[0];
for( int i=1; i < sms->qlevels.i_size; i++ )
{
if( sms->qlevels.p_elems[i]->Bitrate < wanted->Bitrate )
wanted = sms->qlevels.p_elems[i];
}
sms->current_qlvl = wanted;
}
FOREACH_END();
/* Init our playback queue */
p_sys->p_current_stream = next_playback_stream( p_sys );
if ( !p_sys->p_current_stream )
{
SysCleanup( p_sys );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->playback.next_chunk_offset = CHUNK_OFFSET_UNSET;
p_sys->i_probe_length = SMS_PROBE_LENGTH;
vlc_mutex_init( &p_sys->lock );
vlc_cond_init( &p_sys->download.wait );
vlc_cond_init( &p_sys->playback.wait );
vlc_mutex_init( &p_sys->playback.lock );
/* */
s->pf_read = Read;
s->pf_control = Control;
if( vlc_clone( &p_sys->download.thread, sms_Thread, s, VLC_THREAD_PRIORITY_INPUT ) )
{
SysCleanup( p_sys );
vlc_mutex_destroy( &p_sys->lock );
vlc_cond_destroy( &p_sys->download.wait );
vlc_mutex_destroy( &p_sys->playback.lock );
vlc_cond_destroy( &p_sys->playback.wait );
free( p_sys );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int Open( vlc_object_t *p_this )
{
stream_t *s = (stream_t*)p_this;
stream_sys_t *p_sys;
if( !isSmoothStreaming( s ) )
return VLC_EGENERIC;
msg_Info( p_this, "Smooth Streaming (%s)", s->psz_path );
s->p_sys = p_sys = calloc( 1, sizeof(*p_sys ) );
if( unlikely( p_sys == NULL ) )
return VLC_ENOMEM;
char *uri = NULL;
if( unlikely( asprintf( &uri, "%s://%s", s->psz_access, s->psz_path ) < 0 ) )
{
free( p_sys );
return VLC_ENOMEM;
}
/* remove the last part of the url */
char *pos = strrchr( uri, '/');
*pos = '\0';
p_sys->base_url = uri;
/* XXX I don't know wether or not we should allow caching */
p_sys->b_cache = false;
p_sys->sms_streams = vlc_array_new();
p_sys->selected_st = vlc_array_new();
p_sys->download.chunks = vlc_array_new();
p_sys->init_chunks = vlc_array_new();
if( unlikely( !p_sys->sms_streams || !p_sys->download.chunks ||
!p_sys->selected_st || !p_sys->init_chunks ) )
{
free( p_sys );
return VLC_ENOMEM;
}
/* Parse SMS ismc content. */
if( parse_Manifest( s ) != VLC_SUCCESS )
{
free( p_sys );
return VLC_EGENERIC;
}
if( !p_sys->vod_duration )
p_sys->b_live = true;
p_sys->i_tracks = vlc_array_count( p_sys->sms_streams );
/* Choose first video / audio / subtitle stream available */
sms_stream_t *tmp = NULL, *selected = NULL;
for( unsigned i = 0; i < p_sys->i_tracks; i++ )
{
tmp = vlc_array_item_at_index( p_sys->sms_streams, i );
selected = SMS_GET_SELECTED_ST( tmp->type );
if( !selected )
vlc_array_append( p_sys->selected_st, tmp );
}
/* Choose lowest quality for the first chunks */
quality_level_t *wanted, *qlvl;
sms_stream_t *sms = NULL;
for( unsigned i = 0; i < p_sys->i_tracks; i++ )
{
wanted = qlvl = NULL;
sms = vlc_array_item_at_index( p_sys->sms_streams, i );
wanted = vlc_array_item_at_index( sms->qlevels, 0 );
for( unsigned i=1; i < sms->qlevel_nb; i++ )
{
qlvl = vlc_array_item_at_index( sms->qlevels, i );
if( qlvl->Bitrate < wanted->Bitrate )
wanted = qlvl;
}
sms->download_qlvl = wanted->id;
}
vlc_mutex_init( &p_sys->download.lock_wait );
vlc_cond_init( &p_sys->download.wait );
/* */
s->pf_read = Read;
s->pf_peek = Peek;
s->pf_control = Control;
if( vlc_clone( &p_sys->thread, sms_Thread, s, VLC_THREAD_PRIORITY_INPUT ) )
{
free( p_sys );
vlc_mutex_destroy( &p_sys->download.lock_wait );
vlc_cond_destroy( &p_sys->download.wait );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int sms_Read( stream_t *s, uint8_t *p_read, int i_read )
{
stream_sys_t *p_sys = s->p_sys;
int copied = 0;
chunk_t *chunk = NULL;
do
{
chunk = get_chunk( s, true );
if( !chunk )
return copied;
if( chunk->read_pos >= (int)chunk->size )
{
if( chunk->type == VIDEO_ES ||
( !SMS_GET_SELECTED_ST( VIDEO_ES ) && chunk->type == AUDIO_ES ) )
{
vlc_mutex_lock( &p_sys->download.lock_wait );
p_sys->playback.toffset += chunk->duration;
vlc_mutex_unlock( &p_sys->download.lock_wait );
vlc_cond_signal( &p_sys->download.wait);
}
if( !p_sys->b_cache || p_sys->b_live )
{
FREENULL( chunk->data );
chunk->read_pos = 0;
}
chunk->read_pos = 0;
p_sys->playback.index += 1;
msg_Dbg( s, "Incrementing playback index" );
continue;
}
if( chunk->read_pos == 0 )
{
const char *verb = p_read == NULL ? "skipping" : "reading";
msg_Dbg( s, "%s chunk %u (%u bytes), type %i",
verb, chunk->sequence, i_read, chunk->type );
/* check integrity */
uint32_t type;
uint8_t *slice = chunk->data;
SMS_GET4BYTES( type );
SMS_GETFOURCC( type );
assert( type == ATOM_moof || type == ATOM_uuid );
}
int len = -1;
uint8_t *src = chunk->data + chunk->read_pos;
if( i_read <= chunk->size - chunk->read_pos )
len = i_read;
else
len = chunk->size - chunk->read_pos;
if( len > 0 )
{
if( p_read ) /* otherwise caller skips data */
memcpy( p_read + copied, src, len );
chunk->read_pos += len;
copied += len;
i_read -= len;
}
} while ( i_read > 0 );
return copied;
}
static unsigned int sms_Read( stream_t *s, uint8_t *p_read, unsigned int i_read )
{
stream_sys_t *p_sys = s->p_sys;
unsigned int copied = 0;
chunk_t *chunk = NULL;
do
{
bool b_isinitchunk = false;
chunk = get_chunk( s, true, &b_isinitchunk );
/* chunk here won't be processed further */
// msg_Dbg( s, "chunk %"PRIu64" init %d", (uint64_t) chunk, b_isinitchunk );
if( !chunk )
return copied;
if( chunk->read_pos >= chunk->size )
{
if( chunk->type == VIDEO_ES ||
( !SMS_GET_SELECTED_ST( VIDEO_ES ) && chunk->type == AUDIO_ES ) )
{
p_sys->playback.toffset += chunk->duration;
vlc_cond_signal( &p_sys->download.wait );
}
if ( b_isinitchunk )
{
assert( chunk->read_pos == chunk->size );
vlc_mutex_lock( &p_sys->playback.lock );
p_sys->playback.init.p_startchunk = NULL;
p_sys->playback.init.p_datachunk = NULL;
chunk_Free( chunk );
vlc_mutex_unlock( &p_sys->playback.lock );
}
else
{
vlc_mutex_lock( &p_sys->lock );
if( gotoNextChunk( p_sys ) == NULL )
{
vlc_mutex_unlock( &p_sys->lock );
return 0;
}
vlc_mutex_unlock( &p_sys->lock );
}
continue;
}
if( chunk->read_pos == 0 )
{
const char *verb = p_read == NULL ? "skipping" : "reading";
msg_Dbg( s, "%s chunk time %"PRIu64" (%u bytes), type %i",
verb, chunk->start_time, i_read, chunk->type );
}
uint64_t len = 0;
uint8_t *src = chunk->data + chunk->read_pos;
if( i_read <= chunk->size - chunk->read_pos )
len = i_read;
else
len = chunk->size - chunk->read_pos;
if( len > 0 )
{
if( p_read ) /* otherwise caller skips data */
memcpy( p_read + copied, src, len );
chunk->read_pos += len;
copied += len;
i_read -= len;
p_sys->playback.boffset += len;
}
} while ( i_read > 0 );
return copied;
}