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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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