Commit a75d76c1 authored by Gildas Bazin's avatar Gildas Bazin

* modules/access/dshow/*: fixes and optimizations. Also changed all the...

* modules/access/dshow/*: fixes and optimizations. Also changed all the parameters into config options.
parent d20e5f41
......@@ -2,7 +2,7 @@
* dshow.cpp : DirectShow access module for vlc
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: dshow.cpp,v 1.9 2003/09/21 10:23:59 gbazin Exp $
* $Id: dshow.cpp,v 1.10 2003/10/18 20:09:23 gbazin Exp $
*
* Author: Gildas Bazin <gbazin@netcourrier.com>
*
......@@ -49,9 +49,16 @@ static int OpenDevice( input_thread_t *, string, vlc_bool_t );
static IBaseFilter *FindCaptureDevice( vlc_object_t *, string *,
list<string> *, vlc_bool_t );
static AM_MEDIA_TYPE EnumDeviceCaps( vlc_object_t *, IBaseFilter *,
vlc_bool_t, int, int, int );
int, int, int, int, int, int );
static bool ConnectFilters( IFilterGraph *, IBaseFilter *, IPin * );
#if 0
/* Debug only, use this to find out GUIDs */
unsigned char p_st[];
UuidToString( (IID *)&IID_IAMBufferNegotiation, &p_st );
msg_Err( p_input, "BufferNegotiation: %s" , p_st );
#endif
/*****************************************************************************
* Module descriptior
*****************************************************************************/
......@@ -59,12 +66,36 @@ static bool ConnectFilters( IFilterGraph *, IBaseFilter *, IPin * );
#define CACHING_LONGTEXT N_( \
"Allows you to modify the default caching value for directshow streams. " \
"This value should be set in miliseconds units." )
#define VDEV_TEXT N_("Video device name")
#define VDEV_LONGTEXT N_( \
"You can specify the name of the video device that will be used by the " \
"DirectShow plugin. If you don't specify anything, the default device " \
"will be used.")
#define ADEV_TEXT N_("Audio device name")
#define ADEV_LONGTEXT N_( \
"You can specify the name of the audio device that will be used by the " \
"DirectShow plugin. If you don't specify anything, the default device " \
"will be used.")
#define SIZE_TEXT N_("Video size")
#define SIZE_LONGTEXT N_( \
"You can specify the size of the video that will be displayed by the " \
"DirectShow plugin. If you don't specify anything the default size for " \
"your device will be used.")
#define CHROMA_TEXT N_("Video input chroma format")
#define CHROMA_LONGTEXT N_( \
"Force the DirectShow video input to use a specific chroma format " \
"(eg. I420 (default), RV24, etc...)")
vlc_module_begin();
set_description( _("DirectShow input") );
add_category_hint( N_("dshow"), NULL, VLC_TRUE );
add_integer( "dshow-caching", DEFAULT_PTS_DELAY / 1000, NULL,
add_integer( "dshow-caching", (mtime_t)(0.2*CLOCK_FREQ) / 1000, NULL,
CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
add_string( "dshow-vdev", NULL, NULL, VDEV_TEXT, VDEV_LONGTEXT, VLC_FALSE);
add_string( "dshow-adev", NULL, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_FALSE);
add_string( "dshow-size", NULL, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE);
add_string( "dshow-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
VLC_TRUE );
add_shortcut( "dshow" );
set_capability( "access", 0 );
set_callbacks( AccessOpen, AccessClose );
......@@ -135,10 +166,7 @@ typedef struct dshow_stream_t
} header;
VLCMediaSample sample;
int i_data_size;
int i_data_pos;
uint8_t *p_data;
vlc_bool_t b_pts;
} dshow_stream_t;
......@@ -147,6 +175,9 @@ typedef struct dshow_stream_t
****************************************************************************/
struct access_sys_t
{
vlc_mutex_t lock;
vlc_cond_t wait;
IFilterGraph *p_graph;
IMediaControl *p_control;
......@@ -173,130 +204,72 @@ static int AccessOpen( vlc_object_t *p_this )
{
input_thread_t *p_input = (input_thread_t *)p_this;
access_sys_t *p_sys;
vlc_value_t val;
/* parse url and open device(s) */
char *psz_dup, *psz_parser;
psz_dup = strdup( p_input->psz_name );
psz_parser = psz_dup;
/* Get/parse options and open device(s) */
string vdevname, adevname;
int i_width = 0, i_height = 0, i_chroma = VLC_FOURCC('I','4','2','0');
while( *psz_parser && *psz_parser != ':' )
{
psz_parser++;
}
var_Create( p_input, "dshow-vdev", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Get( p_input, "dshow-vdev", &val );
if( val.psz_string ) vdevname = string( val.psz_string );
if( val.psz_string ) free( val.psz_string );
if( *psz_parser == ':' )
var_Create( p_input, "dshow-adev", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Get( p_input, "dshow-adev", &val );
if( val.psz_string ) adevname = string( val.psz_string );
if( val.psz_string ) free( val.psz_string );
var_Create( p_input, "dshow-size", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Get( p_input, "dshow-size", &val );
if( val.psz_string && *val.psz_string )
{
/* read options */
for( ;; )
if( !strcmp( val.psz_string, "subqcif" ) )
{
int i_len;
*psz_parser++ = '\0';
if( !strncmp( psz_parser, "vdev=", strlen( "vdev=" ) ) )
{
psz_parser += strlen( "vdev=" );
if( strchr( psz_parser, ':' ) )
{
i_len = strchr( psz_parser, ':' ) - psz_parser;
}
else
{
i_len = strlen( psz_parser );
}
vdevname = string( psz_parser, i_len );
psz_parser += i_len;
}
else if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) ) )
{
psz_parser += strlen( "adev=" );
if( strchr( psz_parser, ':' ) )
{
i_len = strchr( psz_parser, ':' ) - psz_parser;
}
else
{
i_len = strlen( psz_parser );
}
adevname = string( psz_parser, i_len );
psz_parser += i_len;
}
else if( !strncmp( psz_parser, "size=", strlen( "size=" ) ) )
{
psz_parser += strlen( "size=" );
if( !strncmp( psz_parser, "subqcif", strlen( "subqcif" ) ) )
{
i_width = 128;
i_height = 96;
}
else if( !strncmp( psz_parser, "qsif", strlen( "qsif" ) ) )
{
i_width = 160;
i_height = 120;
}
else if( !strncmp( psz_parser, "qcif", strlen( "qcif" ) ) )
{
i_width = 176;
i_height = 144;
}
else if( !strncmp( psz_parser, "sif", strlen( "sif" ) ) )
{
i_width = 320;
i_height = 240;
}
else if( !strncmp( psz_parser, "cif", strlen( "cif" ) ) )
{
i_width = 352;
i_height = 288;
}
else if( !strncmp( psz_parser, "vga", strlen( "vga" ) ) )
{
i_width = 640;
i_height = 480;
}
else
{
/* widthxheight */
i_width = strtol( psz_parser, &psz_parser, 0 );
if( *psz_parser == 'x' || *psz_parser == 'X')
{
i_height = strtol( psz_parser + 1, &psz_parser, 0 );
}
msg_Dbg( p_input, "WidthxHeight %dx%d", i_width, i_height );
}
}
else if( !strncmp( psz_parser, "chroma=", strlen( "chroma=" ) ) )
{
psz_parser += strlen( "chroma=" );
if( strlen( psz_parser ) >= 4 )
{
i_chroma = VLC_FOURCC( psz_parser[0],psz_parser[1],
psz_parser[2],psz_parser[3] );
}
}
else
{
msg_Warn( p_input, "unknown option" );
}
while( *psz_parser && *psz_parser != ':' )
{
psz_parser++;
}
if( *psz_parser == '\0' )
i_width = 128; i_height = 96;
}
else if( !strcmp( val.psz_string, "qsif" ) )
{
i_width = 160; i_height = 120;
}
else if( !strcmp( val.psz_string, "qcif" ) )
{
i_width = 176; i_height = 144;
}
else if( !strcmp( val.psz_string, "sif" ) )
{
i_width = 320; i_height = 240;
}
else if( !strcmp( val.psz_string, "cif" ) )
{
i_width = 352; i_height = 288;
}
else if( !strcmp( val.psz_string, "vga" ) )
{
i_width = 640; i_height = 480;
}
else
{
/* Width x Height */
char *psz_parser;
i_width = strtol( val.psz_string, &psz_parser, 0 );
if( *psz_parser == 'x' || *psz_parser == 'X')
{
break;
i_height = strtol( psz_parser + 1, &psz_parser, 0 );
}
msg_Dbg( p_input, "Width x Height %dx%d", i_width, i_height );
}
}
if( val.psz_string ) free( val.psz_string );
free( psz_dup );
var_Create( p_input, "dshow-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Get( p_input, "dshow-chroma", &val );
if( val.psz_string && strlen( val.psz_string ) >= 4 )
{
i_chroma = VLC_FOURCC( val.psz_string[0], val.psz_string[1],
val.psz_string[2], val.psz_string[3] );
}
if( val.psz_string ) free( val.psz_string );
p_input->pf_read = Read;
p_input->pf_seek = NULL;
......@@ -310,7 +283,10 @@ static int AccessOpen( vlc_object_t *p_this )
p_input->stream.p_selected_area->i_tell = 0;
p_input->stream.i_method = INPUT_METHOD_FILE;
vlc_mutex_unlock( &p_input->stream.stream_lock );
p_input->i_pts_delay = config_GetInt( p_input, "dshow-caching" ) * 1000;
var_Create( p_input, "dshow-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Get( p_input, "dshow-caching", &val );
p_input->i_pts_delay = val.i_int * 1000;
/* Initialize OLE/COM */
CoInitializeEx( 0, COINIT_APARTMENTTHREADED );
......@@ -367,7 +343,10 @@ static int AccessOpen( vlc_object_t *p_this )
/* Initialize some data */
p_sys->i_current_stream = 0;
p_sys->i_header_pos = 0;
p_input->i_mtu += p_sys->i_header_size + 16 /* data header size */;
vlc_mutex_init( p_input, &p_sys->lock );
vlc_cond_init( p_input, &p_sys->wait );
/* Everything is ready. Let's rock baby */
p_sys->p_control->Run();
......@@ -390,10 +369,10 @@ static void AccessClose( vlc_object_t *p_this )
/* Remove filters from graph */
for( int i = 0; i < p_sys->i_streams; i++ )
{
p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_capture_filter );
p_sys->pp_streams[i]->p_device_filter->Release();
p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
p_sys->pp_streams[i]->p_capture_filter->Release();
p_sys->pp_streams[i]->p_device_filter->Release();
}
p_sys->p_graph->Release();
......@@ -467,8 +446,9 @@ static int OpenDevice( input_thread_t *p_input, string devicename,
}
AM_MEDIA_TYPE media_type =
EnumDeviceCaps( (vlc_object_t *)p_input, p_device_filter, b_audio,
p_sys->i_chroma, p_sys->i_width, p_sys->i_height );
EnumDeviceCaps( (vlc_object_t *)p_input, p_device_filter,
p_sys->i_chroma, p_sys->i_width, p_sys->i_height,
0, 0, 0 );
/* Create and add our capture filter */
CaptureFilter *p_capture_filter = new CaptureFilter( p_input, media_type );
......@@ -486,6 +466,7 @@ static int OpenDevice( input_thread_t *p_input, string devicename,
/* Success */
dshow_stream_t dshow_stream;
dshow_stream.b_invert = VLC_FALSE;
dshow_stream.b_pts = VLC_FALSE;
dshow_stream.mt =
p_capture_filter->CustomGetPin()->CustomGetMediaType();
......@@ -568,6 +549,11 @@ static int OpenDevice( input_thread_t *p_input, string devicename,
SetDWBE( &p_sys->p_header[p_sys->i_header_pos + 12], i_height );
SetDWBE( &p_sys->p_header[p_sys->i_header_pos + 16], 0 );
p_sys->i_header_pos = p_sys->i_header_size;
/* Greatly simplifies the reading routine */
int i_mtu = dshow_stream.header.video.bmiHeader.biWidth *
dshow_stream.header.video.bmiHeader.biHeight * 4;
p_input->i_mtu = __MAX(p_input->i_mtu,i_mtu);
}
else if( dshow_stream.mt.majortype == MEDIATYPE_Audio &&
......@@ -577,10 +563,8 @@ static int OpenDevice( input_thread_t *p_input, string devicename,
if( dshow_stream.mt.subtype == MEDIASUBTYPE_PCM )
dshow_stream.i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
#if 0
else if( dshow_stream.mt.subtype == MEDIASUBTYPE_IEEE_FLOAT )
dshow_stream.i_fourcc = VLC_FOURCC( 'f', 'l', '3', '2' );
#endif
else goto fail;
dshow_stream.header.audio =
......@@ -600,13 +584,35 @@ static int OpenDevice( input_thread_t *p_input, string devicename,
SetDWBE( &p_sys->p_header[p_sys->i_header_pos + 16],
dshow_stream.header.audio.wBitsPerSample );
p_sys->i_header_pos = p_sys->i_header_size;
/* Greatly simplifies the reading routine */
IAMBufferNegotiation *p_ambuf;
IPin *p_pin;
int i_mtu;
p_capture_filter->CustomGetPin()->ConnectedTo( &p_pin );
if( SUCCEEDED( p_pin->QueryInterface(
IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
{
ALLOCATOR_PROPERTIES AllocProp;
memset( &AllocProp, 0, sizeof( ALLOCATOR_PROPERTIES ) );
p_ambuf->GetAllocatorProperties( &AllocProp );
p_ambuf->Release();
i_mtu = AllocProp.cbBuffer;
}
else
{
/* Worst case */
i_mtu = dshow_stream.header.audio.nSamplesPerSec *
dshow_stream.header.audio.nChannels *
dshow_stream.header.audio.wBitsPerSample / 8;
}
p_pin->Release();
p_input->i_mtu = __MAX( p_input->i_mtu, i_mtu );
}
else goto fail;
/* Add directshow elementary stream to our list */
dshow_stream.sample.p_sample = NULL;
dshow_stream.i_data_size = 0;
dshow_stream.i_data_pos = 0;
dshow_stream.p_device_filter = p_device_filter;
dshow_stream.p_capture_filter = p_capture_filter;
......@@ -732,8 +738,10 @@ FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
}
static AM_MEDIA_TYPE EnumDeviceCaps( vlc_object_t *p_this,
IBaseFilter *p_filter, vlc_bool_t b_audio,
int i_chroma, int i_width, int i_height )
IBaseFilter *p_filter,
int i_chroma, int i_width, int i_height,
int i_channels, int i_samplespersec,
int i_bitspersample )
{
IEnumPins *p_enumpins;
IPin *p_output_pin;
......@@ -752,62 +760,119 @@ static AM_MEDIA_TYPE EnumDeviceCaps( vlc_object_t *p_this,
/*while*/if( p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
{
/* Probe pin */
if( !b_audio &&
SUCCEEDED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
if( SUCCEEDED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
{
AM_MEDIA_TYPE *p_mt;
while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
{
int i_fourcc = VLC_FOURCC(' ', ' ', ' ', ' ');
/* Packed RGB formats */
if( p_mt->subtype == MEDIASUBTYPE_RGB1 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '1' );
if( p_mt->subtype == MEDIASUBTYPE_RGB4 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '4' );
if( p_mt->subtype == MEDIASUBTYPE_RGB8 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '8' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB555 )
i_fourcc = VLC_FOURCC( 'R', 'V', '1', '5' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB565 )
i_fourcc = VLC_FOURCC( 'R', 'V', '1', '6' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB24 )
i_fourcc = VLC_FOURCC( 'R', 'V', '2', '4' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB32 )
i_fourcc = VLC_FOURCC( 'R', 'V', '3', '2' );
else if( p_mt->subtype == MEDIASUBTYPE_ARGB32 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', 'A' );
else i_fourcc = *((int *)&p_mt->subtype);
int i_current_width = p_mt->pbFormat ?
((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth : 0;
int i_current_height = p_mt->pbFormat ?
((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight : 0;
msg_Dbg( p_this, "EnumDeviceCaps: input pin "
"accepts chroma: %4.4s, width:%i, height:%i",
(char *)&i_fourcc, i_current_width,
i_current_height );
if( i_fourcc == i_chroma )
{
media_type.subtype = p_mt->subtype;
}
if( i_fourcc == i_chroma && p_mt->pbFormat &&
i_width && i_height && i_width == i_current_width &&
i_height == i_current_height )
if( p_mt->majortype == MEDIATYPE_Video )
{
media_type = *p_mt;
int i_fourcc = VLC_FOURCC(' ', ' ', ' ', ' ');
/* Packed RGB formats */
if( p_mt->subtype == MEDIASUBTYPE_RGB1 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '1' );
if( p_mt->subtype == MEDIASUBTYPE_RGB4 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '4' );
if( p_mt->subtype == MEDIASUBTYPE_RGB8 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '8' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB555 )
i_fourcc = VLC_FOURCC( 'R', 'V', '1', '5' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB565 )
i_fourcc = VLC_FOURCC( 'R', 'V', '1', '6' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB24 )
i_fourcc = VLC_FOURCC( 'R', 'V', '2', '4' );
else if( p_mt->subtype == MEDIASUBTYPE_RGB32 )
i_fourcc = VLC_FOURCC( 'R', 'V', '3', '2' );
else if( p_mt->subtype == MEDIASUBTYPE_ARGB32 )
i_fourcc = VLC_FOURCC( 'R', 'G', 'B', 'A' );
else i_fourcc = *((int *)&p_mt->subtype);
int i_current_width = p_mt->pbFormat ?
((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth : 0;
int i_current_height = p_mt->pbFormat ?
((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight : 0;
msg_Dbg( p_this, "EnumDeviceCaps: input pin "
"accepts chroma: %4.4s, width:%i, height:%i",
(char *)&i_fourcc, i_current_width,
i_current_height );
if( (!i_chroma || i_fourcc == i_chroma) &&
(!i_width || i_width == i_current_width) &&
(!i_height || i_height == i_current_height) )
{
/* Pick the 1st match */
media_type = *p_mt;
i_chroma = i_fourcc;
i_width = i_current_width;
i_height = i_current_height;
}
else
{
FreeMediaType( *p_mt );
}
}
else
else if( p_mt->majortype == MEDIATYPE_Audio )
{
FreeMediaType( *p_mt );
int i_fourcc;
int i_current_channels =
((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
int i_current_samplespersec =
((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
int i_current_bitspersample =
((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
if( p_mt->subtype == MEDIASUBTYPE_PCM )
i_fourcc = VLC_FOURCC( 'p', 'c', 'm', ' ' );
else i_fourcc = *((int *)&p_mt->subtype);
msg_Dbg( p_this, "EnumDeviceCaps: input pin "
"accepts format: %4.4s, channels:%i, "
"samples/sec:%i bits/sample:%i",
(char *)&i_fourcc, i_current_channels,
i_current_samplespersec, i_current_bitspersample);
if( (!i_channels || i_channels == i_current_channels) &&
(!i_samplespersec ||
i_samplespersec == i_current_samplespersec) &&
(!i_bitspersample ||
i_bitspersample == i_current_bitspersample) )
{
/* Pick the 1st match */
media_type = *p_mt;
i_channels = i_current_channels;
i_samplespersec = i_current_samplespersec;
i_bitspersample = i_current_bitspersample;
/* Setup a few properties like the audio latency */
IAMBufferNegotiation *p_ambuf;
if( SUCCEEDED( p_output_pin->QueryInterface(
IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
{
ALLOCATOR_PROPERTIES AllocProp;
AllocProp.cbAlign = -1;
AllocProp.cbBuffer = i_channels * i_samplespersec *
i_bitspersample / 8 / 10 ; /*100 ms of latency*/
AllocProp.cbPrefix = -1;
AllocProp.cBuffers = -1;
p_ambuf->SuggestAllocatorProperties( &AllocProp );
p_ambuf->Release();
}
}
else
{
FreeMediaType( *p_mt );
}
}
CoTaskMemFree( (PVOID)p_mt );
}
p_enummt->Release();
}
p_output_pin->Release();
}
......@@ -825,171 +890,140 @@ static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer,
size_t i_len )
{
access_sys_t *p_sys = p_input->p_access_data;
dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_current_stream];
int i_data = 0;
dshow_stream_t *p_stream = NULL;
byte_t *p_buf_orig = p_buffer;
VLCMediaSample sample;
int i_data_size;
uint8_t *p_data;
#if 0
msg_Info( p_input, "access read data_size %i, data_pos %i",
p_sys->i_data_size, p_sys->i_data_pos );
#endif
if( p_sys->i_header_pos )
{
/* First header of the stream */
memcpy( p_buffer, p_sys->p_header, p_sys->i_header_size );
p_buffer += p_sys->i_header_size;
p_sys->i_header_pos = 0;
}
while( i_len > 0 )
while( 1 )
{
/* First copy header if any */
if( i_len > 0 && p_sys->i_header_pos < p_sys->i_header_size )
/* Get new sample/frame from next elementary stream.
* We first loop through all the elementary streams and if all our
* fifos are empty we block until we are signaled some new data has
* arrived. */
vlc_mutex_lock( &p_sys->lock );
int i_stream;
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
{
int i_copy;
i_copy = __MIN( p_sys->i_header_size -
p_sys->i_header_pos, (int)i_len );
memcpy( p_buffer, &p_sys->p_header[p_sys->i_header_pos], i_copy );
p_sys->i_header_pos += i_copy;
p_buffer += i_copy;
i_len -= i_copy;
i_data += i_copy;
p_stream = p_sys->pp_streams[i_stream];
if( p_stream->mt.majortype == MEDIATYPE_Audio &&
p_stream->p_capture_filter &&
p_stream->p_capture_filter->CustomGetPin()
->CustomGetSample( &sample ) == S_OK )
{
break;
}
}
/* Then copy stream data if any */
if( i_len > 0 && p_stream->i_data_pos < p_stream->i_data_size )
if( i_stream == p_sys->i_streams )
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
{
int i_copy = __MIN( p_stream->i_data_size -
p_stream->i_data_pos, (int)i_len );
if( !p_stream->b_invert )
p_stream = p_sys->pp_streams[i_stream];