forked from KolibriOS/kolibrios
385 lines
11 KiB
C
385 lines
11 KiB
C
/*
|
|
* DirectShow capture interface
|
|
* Copyright (c) 2010 Ramiro Polla
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "dshow_capture.h"
|
|
|
|
#include <stddef.h>
|
|
#define imemoffset offsetof(libAVPin, imemvtbl)
|
|
|
|
DECLARE_QUERYINTERFACE(libAVPin,
|
|
{ {&IID_IUnknown,0}, {&IID_IPin,0}, {&IID_IMemInputPin,imemoffset} })
|
|
DECLARE_ADDREF(libAVPin)
|
|
DECLARE_RELEASE(libAVPin)
|
|
|
|
long WINAPI
|
|
libAVPin_Connect(libAVPin *this, IPin *pin, const AM_MEDIA_TYPE *type)
|
|
{
|
|
dshowdebug("libAVPin_Connect(%p, %p, %p)\n", this, pin, type);
|
|
/* Input pins receive connections. */
|
|
return S_FALSE;
|
|
}
|
|
long WINAPI
|
|
libAVPin_ReceiveConnection(libAVPin *this, IPin *pin,
|
|
const AM_MEDIA_TYPE *type)
|
|
{
|
|
enum dshowDeviceType devtype = this->filter->type;
|
|
dshowdebug("libAVPin_ReceiveConnection(%p)\n", this);
|
|
|
|
if (!pin)
|
|
return E_POINTER;
|
|
if (this->connectedto)
|
|
return VFW_E_ALREADY_CONNECTED;
|
|
|
|
ff_print_AM_MEDIA_TYPE(type);
|
|
if (devtype == VideoDevice) {
|
|
if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Video))
|
|
return VFW_E_TYPE_NOT_ACCEPTED;
|
|
} else {
|
|
if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Audio))
|
|
return VFW_E_TYPE_NOT_ACCEPTED;
|
|
}
|
|
|
|
IPin_AddRef(pin);
|
|
this->connectedto = pin;
|
|
|
|
ff_copy_dshow_media_type(&this->type, type);
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_Disconnect(libAVPin *this)
|
|
{
|
|
dshowdebug("libAVPin_Disconnect(%p)\n", this);
|
|
|
|
if (this->filter->state != State_Stopped)
|
|
return VFW_E_NOT_STOPPED;
|
|
if (!this->connectedto)
|
|
return S_FALSE;
|
|
IPin_Release(this->connectedto);
|
|
this->connectedto = NULL;
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_ConnectedTo(libAVPin *this, IPin **pin)
|
|
{
|
|
dshowdebug("libAVPin_ConnectedTo(%p)\n", this);
|
|
|
|
if (!pin)
|
|
return E_POINTER;
|
|
if (!this->connectedto)
|
|
return VFW_E_NOT_CONNECTED;
|
|
IPin_AddRef(this->connectedto);
|
|
*pin = this->connectedto;
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_ConnectionMediaType(libAVPin *this, AM_MEDIA_TYPE *type)
|
|
{
|
|
dshowdebug("libAVPin_ConnectionMediaType(%p)\n", this);
|
|
|
|
if (!type)
|
|
return E_POINTER;
|
|
if (!this->connectedto)
|
|
return VFW_E_NOT_CONNECTED;
|
|
|
|
return ff_copy_dshow_media_type(type, &this->type);
|
|
}
|
|
long WINAPI
|
|
libAVPin_QueryPinInfo(libAVPin *this, PIN_INFO *info)
|
|
{
|
|
dshowdebug("libAVPin_QueryPinInfo(%p)\n", this);
|
|
|
|
if (!info)
|
|
return E_POINTER;
|
|
|
|
if (this->filter)
|
|
libAVFilter_AddRef(this->filter);
|
|
|
|
info->pFilter = (IBaseFilter *) this->filter;
|
|
info->dir = PINDIR_INPUT;
|
|
wcscpy(info->achName, L"Capture");
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_QueryDirection(libAVPin *this, PIN_DIRECTION *dir)
|
|
{
|
|
dshowdebug("libAVPin_QueryDirection(%p)\n", this);
|
|
if (!dir)
|
|
return E_POINTER;
|
|
*dir = PINDIR_INPUT;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_QueryId(libAVPin *this, wchar_t **id)
|
|
{
|
|
dshowdebug("libAVPin_QueryId(%p)\n", this);
|
|
|
|
if (!id)
|
|
return E_POINTER;
|
|
|
|
*id = wcsdup(L"libAV Pin");
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_QueryAccept(libAVPin *this, const AM_MEDIA_TYPE *type)
|
|
{
|
|
dshowdebug("libAVPin_QueryAccept(%p)\n", this);
|
|
return S_FALSE;
|
|
}
|
|
long WINAPI
|
|
libAVPin_EnumMediaTypes(libAVPin *this, IEnumMediaTypes **enumtypes)
|
|
{
|
|
const AM_MEDIA_TYPE *type = NULL;
|
|
libAVEnumMediaTypes *new;
|
|
dshowdebug("libAVPin_EnumMediaTypes(%p)\n", this);
|
|
|
|
if (!enumtypes)
|
|
return E_POINTER;
|
|
new = libAVEnumMediaTypes_Create(type);
|
|
if (!new)
|
|
return E_OUTOFMEMORY;
|
|
|
|
*enumtypes = (IEnumMediaTypes *) new;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_QueryInternalConnections(libAVPin *this, IPin **pin,
|
|
unsigned long *npin)
|
|
{
|
|
dshowdebug("libAVPin_QueryInternalConnections(%p)\n", this);
|
|
return E_NOTIMPL;
|
|
}
|
|
long WINAPI
|
|
libAVPin_EndOfStream(libAVPin *this)
|
|
{
|
|
dshowdebug("libAVPin_EndOfStream(%p)\n", this);
|
|
/* I don't care. */
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_BeginFlush(libAVPin *this)
|
|
{
|
|
dshowdebug("libAVPin_BeginFlush(%p)\n", this);
|
|
/* I don't care. */
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_EndFlush(libAVPin *this)
|
|
{
|
|
dshowdebug("libAVPin_EndFlush(%p)\n", this);
|
|
/* I don't care. */
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVPin_NewSegment(libAVPin *this, REFERENCE_TIME start, REFERENCE_TIME stop,
|
|
double rate)
|
|
{
|
|
dshowdebug("libAVPin_NewSegment(%p)\n", this);
|
|
/* I don't care. */
|
|
return S_OK;
|
|
}
|
|
|
|
static int
|
|
libAVPin_Setup(libAVPin *this, libAVFilter *filter)
|
|
{
|
|
IPinVtbl *vtbl = this->vtbl;
|
|
IMemInputPinVtbl *imemvtbl;
|
|
|
|
if (!filter)
|
|
return 0;
|
|
|
|
imemvtbl = av_malloc(sizeof(IMemInputPinVtbl));
|
|
if (!imemvtbl)
|
|
return 0;
|
|
|
|
SETVTBL(imemvtbl, libAVMemInputPin, QueryInterface);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, AddRef);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, Release);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, GetAllocator);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, NotifyAllocator);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, GetAllocatorRequirements);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, Receive);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, ReceiveMultiple);
|
|
SETVTBL(imemvtbl, libAVMemInputPin, ReceiveCanBlock);
|
|
|
|
this->imemvtbl = imemvtbl;
|
|
|
|
SETVTBL(vtbl, libAVPin, QueryInterface);
|
|
SETVTBL(vtbl, libAVPin, AddRef);
|
|
SETVTBL(vtbl, libAVPin, Release);
|
|
SETVTBL(vtbl, libAVPin, Connect);
|
|
SETVTBL(vtbl, libAVPin, ReceiveConnection);
|
|
SETVTBL(vtbl, libAVPin, Disconnect);
|
|
SETVTBL(vtbl, libAVPin, ConnectedTo);
|
|
SETVTBL(vtbl, libAVPin, ConnectionMediaType);
|
|
SETVTBL(vtbl, libAVPin, QueryPinInfo);
|
|
SETVTBL(vtbl, libAVPin, QueryDirection);
|
|
SETVTBL(vtbl, libAVPin, QueryId);
|
|
SETVTBL(vtbl, libAVPin, QueryAccept);
|
|
SETVTBL(vtbl, libAVPin, EnumMediaTypes);
|
|
SETVTBL(vtbl, libAVPin, QueryInternalConnections);
|
|
SETVTBL(vtbl, libAVPin, EndOfStream);
|
|
SETVTBL(vtbl, libAVPin, BeginFlush);
|
|
SETVTBL(vtbl, libAVPin, EndFlush);
|
|
SETVTBL(vtbl, libAVPin, NewSegment);
|
|
|
|
this->filter = filter;
|
|
|
|
return 1;
|
|
}
|
|
DECLARE_CREATE(libAVPin, libAVPin_Setup(this, filter), libAVFilter *filter)
|
|
DECLARE_DESTROY(libAVPin, nothing)
|
|
|
|
/*****************************************************************************
|
|
* libAVMemInputPin
|
|
****************************************************************************/
|
|
long WINAPI
|
|
libAVMemInputPin_QueryInterface(libAVMemInputPin *this, const GUID *riid,
|
|
void **ppvObject)
|
|
{
|
|
libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
|
|
dshowdebug("libAVMemInputPin_QueryInterface(%p)\n", this);
|
|
return libAVPin_QueryInterface(pin, riid, ppvObject);
|
|
}
|
|
unsigned long WINAPI
|
|
libAVMemInputPin_AddRef(libAVMemInputPin *this)
|
|
{
|
|
libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
|
|
dshowdebug("libAVMemInputPin_AddRef(%p)\n", this);
|
|
return libAVPin_AddRef(pin);
|
|
}
|
|
unsigned long WINAPI
|
|
libAVMemInputPin_Release(libAVMemInputPin *this)
|
|
{
|
|
libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
|
|
dshowdebug("libAVMemInputPin_Release(%p)\n", this);
|
|
return libAVPin_Release(pin);
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_GetAllocator(libAVMemInputPin *this, IMemAllocator **alloc)
|
|
{
|
|
dshowdebug("libAVMemInputPin_GetAllocator(%p)\n", this);
|
|
return VFW_E_NO_ALLOCATOR;
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_NotifyAllocator(libAVMemInputPin *this, IMemAllocator *alloc,
|
|
BOOL rdwr)
|
|
{
|
|
dshowdebug("libAVMemInputPin_NotifyAllocator(%p)\n", this);
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *this,
|
|
ALLOCATOR_PROPERTIES *props)
|
|
{
|
|
dshowdebug("libAVMemInputPin_GetAllocatorRequirements(%p)\n", this);
|
|
return E_NOTIMPL;
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_Receive(libAVMemInputPin *this, IMediaSample *sample)
|
|
{
|
|
libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
|
|
enum dshowDeviceType devtype = pin->filter->type;
|
|
void *priv_data;
|
|
AVFormatContext *s;
|
|
uint8_t *buf;
|
|
int buf_size; /* todo should be a long? */
|
|
int index;
|
|
int64_t curtime;
|
|
int64_t orig_curtime;
|
|
int64_t graphtime;
|
|
const char *devtypename = (devtype == VideoDevice) ? "video" : "audio";
|
|
IReferenceClock *clock = pin->filter->clock;
|
|
int64_t dummy;
|
|
struct dshow_ctx *ctx;
|
|
|
|
|
|
dshowdebug("libAVMemInputPin_Receive(%p)\n", this);
|
|
|
|
if (!sample)
|
|
return E_POINTER;
|
|
|
|
IMediaSample_GetTime(sample, &orig_curtime, &dummy);
|
|
orig_curtime += pin->filter->start_time;
|
|
IReferenceClock_GetTime(clock, &graphtime);
|
|
if (devtype == VideoDevice) {
|
|
/* PTS from video devices is unreliable. */
|
|
IReferenceClock_GetTime(clock, &curtime);
|
|
} else {
|
|
IMediaSample_GetTime(sample, &curtime, &dummy);
|
|
if(curtime > 400000000000000000LL) {
|
|
/* initial frames sometimes start < 0 (shown as a very large number here,
|
|
like 437650244077016960 which FFmpeg doesn't like.
|
|
TODO figure out math. For now just drop them. */
|
|
av_log(NULL, AV_LOG_DEBUG,
|
|
"dshow dropping initial (or ending) audio frame with odd PTS too high %"PRId64"\n", curtime);
|
|
return S_OK;
|
|
}
|
|
curtime += pin->filter->start_time;
|
|
}
|
|
|
|
buf_size = IMediaSample_GetActualDataLength(sample);
|
|
IMediaSample_GetPointer(sample, &buf);
|
|
priv_data = pin->filter->priv_data;
|
|
s = priv_data;
|
|
ctx = s->priv_data;
|
|
index = pin->filter->stream_index;
|
|
|
|
av_log(NULL, AV_LOG_VERBOSE, "dshow passing through packet of type %s size %8d "
|
|
"timestamp %"PRId64" orig timestamp %"PRId64" graph timestamp %"PRId64" diff %"PRId64" %s\n",
|
|
devtypename, buf_size, curtime, orig_curtime, graphtime, graphtime - orig_curtime, ctx->device_name[devtype]);
|
|
pin->filter->callback(priv_data, index, buf, buf_size, curtime, devtype);
|
|
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_ReceiveMultiple(libAVMemInputPin *this,
|
|
IMediaSample **samples, long n, long *nproc)
|
|
{
|
|
int i;
|
|
dshowdebug("libAVMemInputPin_ReceiveMultiple(%p)\n", this);
|
|
|
|
for (i = 0; i < n; i++)
|
|
libAVMemInputPin_Receive(this, samples[i]);
|
|
|
|
*nproc = n;
|
|
return S_OK;
|
|
}
|
|
long WINAPI
|
|
libAVMemInputPin_ReceiveCanBlock(libAVMemInputPin *this)
|
|
{
|
|
dshowdebug("libAVMemInputPin_ReceiveCanBlock(%p)\n", this);
|
|
/* I swear I will not block. */
|
|
return S_FALSE;
|
|
}
|
|
|
|
void
|
|
libAVMemInputPin_Destroy(libAVMemInputPin *this)
|
|
{
|
|
libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset);
|
|
dshowdebug("libAVMemInputPin_Destroy(%p)\n", this);
|
|
libAVPin_Destroy(pin);
|
|
}
|