/*
  * 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
 }