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/*
* 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.h"
long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src)
{
uint8_t *pbFormat = NULL;
if (src->cbFormat) {
pbFormat = CoTaskMemAlloc(src->cbFormat);
if (!pbFormat)
return E_OUTOFMEMORY;
memcpy(pbFormat, src->pbFormat, src->cbFormat);
}
*dst = *src;
dst->pUnk = NULL;
dst->pbFormat = pbFormat;
return S_OK;
}
void ff_printGUID(const GUID *g)
{
#if DSHOWDEBUG
const uint32_t *d = (const uint32_t *) &g->Data1;
const uint16_t *w = (const uint16_t *) &g->Data2;
const uint8_t *c = (const uint8_t *) &g->Data4;
dshowdebug("0x%08x 0x%04x 0x%04x %02x%02x%02x%02x%02x%02x%02x%02x",
d[0], w[0], w[1],
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
#endif
}
static const char *dshow_context_to_name(void *ptr)
{
return "dshow";
}
static const AVClass ff_dshow_context_class = { "DirectShow", dshow_context_to_name };
const AVClass *ff_dshow_context_class_ptr = &ff_dshow_context_class;
#define dstruct(pctx, sname, var, type) \
dshowdebug(" "#var":\t%"type"\n", sname->var)
#if DSHOWDEBUG
static void dump_bih(void *s, BITMAPINFOHEADER *bih)
{
dshowdebug(" BITMAPINFOHEADER\n");
dstruct(s, bih, biSize, "lu");
dstruct(s, bih, biWidth, "ld");
dstruct(s, bih, biHeight, "ld");
dstruct(s, bih, biPlanes, "d");
dstruct(s, bih, biBitCount, "d");
dstruct(s, bih, biCompression, "lu");
dshowdebug(" biCompression:\t\"%.4s\"\n",
(char*) &bih->biCompression);
dstruct(s, bih, biSizeImage, "lu");
dstruct(s, bih, biXPelsPerMeter, "lu");
dstruct(s, bih, biYPelsPerMeter, "lu");
dstruct(s, bih, biClrUsed, "lu");
dstruct(s, bih, biClrImportant, "lu");
}
#endif
void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type)
{
#if DSHOWDEBUG
dshowdebug(" majortype\t");
ff_printGUID(&type->majortype);
dshowdebug("\n");
dshowdebug(" subtype\t");
ff_printGUID(&type->subtype);
dshowdebug("\n");
dshowdebug(" bFixedSizeSamples\t%d\n", type->bFixedSizeSamples);
dshowdebug(" bTemporalCompression\t%d\n", type->bTemporalCompression);
dshowdebug(" lSampleSize\t%lu\n", type->lSampleSize);
dshowdebug(" formattype\t");
ff_printGUID(&type->formattype);
dshowdebug("\n");
dshowdebug(" pUnk\t%p\n", type->pUnk);
dshowdebug(" cbFormat\t%lu\n", type->cbFormat);
dshowdebug(" pbFormat\t%p\n", type->pbFormat);
if (IsEqualGUID(&type->formattype, &FORMAT_VideoInfo)) {
VIDEOINFOHEADER *v = (void *) type->pbFormat;
dshowdebug(" rcSource: left %ld top %ld right %ld bottom %ld\n",
v->rcSource.left, v->rcSource.top, v->rcSource.right, v->rcSource.bottom);
dshowdebug(" rcTarget: left %ld top %ld right %ld bottom %ld\n",
v->rcTarget.left, v->rcTarget.top, v->rcTarget.right, v->rcTarget.bottom);
dshowdebug(" dwBitRate: %lu\n", v->dwBitRate);
dshowdebug(" dwBitErrorRate: %lu\n", v->dwBitErrorRate);
dshowdebug(" AvgTimePerFrame: %"PRId64"\n", v->AvgTimePerFrame);
dump_bih(NULL, &v->bmiHeader);
} else if (IsEqualGUID(&type->formattype, &FORMAT_VideoInfo2)) {
VIDEOINFOHEADER2 *v = (void *) type->pbFormat;
dshowdebug(" rcSource: left %ld top %ld right %ld bottom %ld\n",
v->rcSource.left, v->rcSource.top, v->rcSource.right, v->rcSource.bottom);
dshowdebug(" rcTarget: left %ld top %ld right %ld bottom %ld\n",
v->rcTarget.left, v->rcTarget.top, v->rcTarget.right, v->rcTarget.bottom);
dshowdebug(" dwBitRate: %lu\n", v->dwBitRate);
dshowdebug(" dwBitErrorRate: %lu\n", v->dwBitErrorRate);
dshowdebug(" AvgTimePerFrame: %"PRId64"\n", v->AvgTimePerFrame);
dshowdebug(" dwInterlaceFlags: %lu\n", v->dwInterlaceFlags);
dshowdebug(" dwCopyProtectFlags: %lu\n", v->dwCopyProtectFlags);
dshowdebug(" dwPictAspectRatioX: %lu\n", v->dwPictAspectRatioX);
dshowdebug(" dwPictAspectRatioY: %lu\n", v->dwPictAspectRatioY);
// dshowdebug(" dwReserved1: %lu\n", v->u.dwReserved1); /* mingw-w64 is buggy and doesn't name unnamed unions */
dshowdebug(" dwReserved2: %lu\n", v->dwReserved2);
dump_bih(NULL, &v->bmiHeader);
} else if (IsEqualGUID(&type->formattype, &FORMAT_WaveFormatEx)) {
WAVEFORMATEX *fx = (void *) type->pbFormat;
dshowdebug(" wFormatTag: %u\n", fx->wFormatTag);
dshowdebug(" nChannels: %u\n", fx->nChannels);
dshowdebug(" nSamplesPerSec: %lu\n", fx->nSamplesPerSec);
dshowdebug(" nAvgBytesPerSec: %lu\n", fx->nAvgBytesPerSec);
dshowdebug(" nBlockAlign: %u\n", fx->nBlockAlign);
dshowdebug(" wBitsPerSample: %u\n", fx->wBitsPerSample);
dshowdebug(" cbSize: %u\n", fx->cbSize);
}
#endif
}
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