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-rw-r--r--libavdevice/dshow_common.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/libavdevice/dshow_common.c b/libavdevice/dshow_common.c
new file mode 100644
index 0000000000..f7f0dfbdbb
--- /dev/null
+++ b/libavdevice/dshow_common.c
@@ -0,0 +1,190 @@
+/*
+ * 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"
+
+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_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps)
+{
+#if DSHOWDEBUG
+ dshowdebug(" VIDEO_STREAM_CONFIG_CAPS\n");
+ dshowdebug(" guid\t");
+ ff_printGUID(&caps->guid);
+ dshowdebug("\n");
+ dshowdebug(" VideoStandard\t%lu\n", caps->VideoStandard);
+ dshowdebug(" InputSize %ld\t%ld\n", caps->InputSize.cx, caps->InputSize.cy);
+ dshowdebug(" MinCroppingSize %ld\t%ld\n", caps->MinCroppingSize.cx, caps->MinCroppingSize.cy);
+ dshowdebug(" MaxCroppingSize %ld\t%ld\n", caps->MaxCroppingSize.cx, caps->MaxCroppingSize.cy);
+ dshowdebug(" CropGranularityX\t%d\n", caps->CropGranularityX);
+ dshowdebug(" CropGranularityY\t%d\n", caps->CropGranularityY);
+ dshowdebug(" CropAlignX\t%d\n", caps->CropAlignX);
+ dshowdebug(" CropAlignY\t%d\n", caps->CropAlignY);
+ dshowdebug(" MinOutputSize %ld\t%ld\n", caps->MinOutputSize.cx, caps->MinOutputSize.cy);
+ dshowdebug(" MaxOutputSize %ld\t%ld\n", caps->MaxOutputSize.cx, caps->MaxOutputSize.cy);
+ dshowdebug(" OutputGranularityX\t%d\n", caps->OutputGranularityX);
+ dshowdebug(" OutputGranularityY\t%d\n", caps->OutputGranularityY);
+ dshowdebug(" StretchTapsX\t%d\n", caps->StretchTapsX);
+ dshowdebug(" StretchTapsY\t%d\n", caps->StretchTapsY);
+ dshowdebug(" ShrinkTapsX\t%d\n", caps->ShrinkTapsX);
+ dshowdebug(" ShrinkTapsY\t%d\n", caps->ShrinkTapsY);
+ dshowdebug(" MinFrameInterval\t%"PRId64"\n", caps->MinFrameInterval);
+ dshowdebug(" MaxFrameInterval\t%"PRId64"\n", caps->MaxFrameInterval);
+ dshowdebug(" MinBitsPerSecond\t%ld\n", caps->MinBitsPerSecond);
+ dshowdebug(" MaxBitsPerSecond\t%ld\n", caps->MaxBitsPerSecond);
+#endif
+}
+
+void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps)
+{
+#if DSHOWDEBUG
+ dshowdebug(" AUDIO_STREAM_CONFIG_CAPS\n");
+ dshowdebug(" guid\t");
+ ff_printGUID(&caps->guid);
+ dshowdebug("\n");
+ dshowdebug(" MinimumChannels\t%lu\n", caps->MinimumChannels);
+ dshowdebug(" MaximumChannels\t%lu\n", caps->MaximumChannels);
+ dshowdebug(" ChannelsGranularity\t%lu\n", caps->ChannelsGranularity);
+ dshowdebug(" MinimumBitsPerSample\t%lu\n", caps->MinimumBitsPerSample);
+ dshowdebug(" MaximumBitsPerSample\t%lu\n", caps->MaximumBitsPerSample);
+ dshowdebug(" BitsPerSampleGranularity\t%lu\n", caps->BitsPerSampleGranularity);
+ dshowdebug(" MinimumSampleFrequency\t%lu\n", caps->MinimumSampleFrequency);
+ dshowdebug(" MaximumSampleFrequency\t%lu\n", caps->MaximumSampleFrequency);
+ dshowdebug(" SampleFrequencyGranularity\t%lu\n", caps->SampleFrequencyGranularity);
+#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
+}