FFmpeg: libavdevice/dshow_common.c Source File

FFmpeg
dshow_common.c
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1 /*
2  * Directshow capture interface
3  * Copyright (c) 2010 Ramiro Polla
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "dshow_capture.h"
23 
24  long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src)
25 {
26  uint8_t *pbFormat = NULL;
27 
28  if (src->cbFormat) {
29  pbFormat = CoTaskMemAlloc(src->cbFormat);
30  if (!pbFormat)
31  return E_OUTOFMEMORY;
32  memcpy(pbFormat, src->pbFormat, src->cbFormat);
33  }
34 
35  *dst = *src;
36  dst->pUnk = NULL;
37  dst->pbFormat = pbFormat;
38 
39  return S_OK;
40 }
41 
42  void ff_printGUID(const GUID *g)
43 {
44 #if DSHOWDEBUG
45  const uint32_t *d = (const uint32_t *) &g->Data1;
46  const uint16_t *w = (const uint16_t *) &g->Data2;
47  const uint8_t *c = (const uint8_t *) &g->Data4;
48 
49  dshowdebug("0x%08x 0x%04x 0x%04x %02x%02x%02x%02x%02x%02x%02x%02x",
50  d[0], w[0], w[1],
51  c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
52 #endif
53 }
54 
55  static const char *dshow_context_to_name(void *ptr)
56 {
57  return "dshow";
58 }
59  static const AVClass ff_dshow_context_class = { "DirectShow", dshow_context_to_name };
60  const AVClass *ff_dshow_context_class_ptr = &ff_dshow_context_class;
61 
62  #define dstruct(pctx, sname, var, type) \
63  dshowdebug(" "#var":\t%"type"\n", sname->var)
64 
65 #if DSHOWDEBUG
66 static void dump_bih(void *s, BITMAPINFOHEADER *bih)
67 {
68  dshowdebug(" BITMAPINFOHEADER\n");
69  dstruct(s, bih, biSize, "lu");
70  dstruct(s, bih, biWidth, "ld");
71  dstruct(s, bih, biHeight, "ld");
72  dstruct(s, bih, biPlanes, "d");
73  dstruct(s, bih, biBitCount, "d");
74  dstruct(s, bih, biCompression, "lu");
75  dshowdebug(" biCompression:\t\"%.4s\"\n",
76  (char*) &bih->biCompression);
77  dstruct(s, bih, biSizeImage, "lu");
78  dstruct(s, bih, biXPelsPerMeter, "lu");
79  dstruct(s, bih, biYPelsPerMeter, "lu");
80  dstruct(s, bih, biClrUsed, "lu");
81  dstruct(s, bih, biClrImportant, "lu");
82 }
83 #endif
84 
85  void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps)
86 {
87 #if DSHOWDEBUG
88  dshowdebug(" VIDEO_STREAM_CONFIG_CAPS\n");
89  dshowdebug(" guid\t");
90  ff_printGUID(&caps->guid);
91  dshowdebug("\n");
92  dshowdebug(" VideoStandard\t%lu\n", caps->VideoStandard);
93  dshowdebug(" InputSize %ld\t%ld\n", caps->InputSize.cx, caps->InputSize.cy);
94  dshowdebug(" MinCroppingSize %ld\t%ld\n", caps->MinCroppingSize.cx, caps->MinCroppingSize.cy);
95  dshowdebug(" MaxCroppingSize %ld\t%ld\n", caps->MaxCroppingSize.cx, caps->MaxCroppingSize.cy);
96  dshowdebug(" CropGranularityX\t%d\n", caps->CropGranularityX);
97  dshowdebug(" CropGranularityY\t%d\n", caps->CropGranularityY);
98  dshowdebug(" CropAlignX\t%d\n", caps->CropAlignX);
99  dshowdebug(" CropAlignY\t%d\n", caps->CropAlignY);
100  dshowdebug(" MinOutputSize %ld\t%ld\n", caps->MinOutputSize.cx, caps->MinOutputSize.cy);
101  dshowdebug(" MaxOutputSize %ld\t%ld\n", caps->MaxOutputSize.cx, caps->MaxOutputSize.cy);
102  dshowdebug(" OutputGranularityX\t%d\n", caps->OutputGranularityX);
103  dshowdebug(" OutputGranularityY\t%d\n", caps->OutputGranularityY);
104  dshowdebug(" StretchTapsX\t%d\n", caps->StretchTapsX);
105  dshowdebug(" StretchTapsY\t%d\n", caps->StretchTapsY);
106  dshowdebug(" ShrinkTapsX\t%d\n", caps->ShrinkTapsX);
107  dshowdebug(" ShrinkTapsY\t%d\n", caps->ShrinkTapsY);
108  dshowdebug(" MinFrameInterval\t%"PRId64"\n", caps->MinFrameInterval);
109  dshowdebug(" MaxFrameInterval\t%"PRId64"\n", caps->MaxFrameInterval);
110  dshowdebug(" MinBitsPerSecond\t%ld\n", caps->MinBitsPerSecond);
111  dshowdebug(" MaxBitsPerSecond\t%ld\n", caps->MaxBitsPerSecond);
112 #endif
113 }
114 
115  void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps)
116 {
117 #if DSHOWDEBUG
118  dshowdebug(" AUDIO_STREAM_CONFIG_CAPS\n");
119  dshowdebug(" guid\t");
120  ff_printGUID(&caps->guid);
121  dshowdebug("\n");
122  dshowdebug(" MinimumChannels\t%lu\n", caps->MinimumChannels);
123  dshowdebug(" MaximumChannels\t%lu\n", caps->MaximumChannels);
124  dshowdebug(" ChannelsGranularity\t%lu\n", caps->ChannelsGranularity);
125  dshowdebug(" MinimumBitsPerSample\t%lu\n", caps->MinimumBitsPerSample);
126  dshowdebug(" MaximumBitsPerSample\t%lu\n", caps->MaximumBitsPerSample);
127  dshowdebug(" BitsPerSampleGranularity\t%lu\n", caps->BitsPerSampleGranularity);
128  dshowdebug(" MinimumSampleFrequency\t%lu\n", caps->MinimumSampleFrequency);
129  dshowdebug(" MaximumSampleFrequency\t%lu\n", caps->MaximumSampleFrequency);
130  dshowdebug(" SampleFrequencyGranularity\t%lu\n", caps->SampleFrequencyGranularity);
131 #endif
132 }
133 
134  void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type)
135 {
136 #if DSHOWDEBUG
137  dshowdebug(" majortype\t");
138  ff_printGUID(&type->majortype);
139  dshowdebug("\n");
140  dshowdebug(" subtype\t");
141  ff_printGUID(&type->subtype);
142  dshowdebug("\n");
143  dshowdebug(" bFixedSizeSamples\t%d\n", type->bFixedSizeSamples);
144  dshowdebug(" bTemporalCompression\t%d\n", type->bTemporalCompression);
145  dshowdebug(" lSampleSize\t%lu\n", type->lSampleSize);
146  dshowdebug(" formattype\t");
147  ff_printGUID(&type->formattype);
148  dshowdebug("\n");
149  dshowdebug(" pUnk\t%p\n", type->pUnk);
150  dshowdebug(" cbFormat\t%lu\n", type->cbFormat);
151  dshowdebug(" pbFormat\t%p\n", type->pbFormat);
152 
153  if (IsEqualGUID(&type->formattype, &FORMAT_VideoInfo)) {
154  VIDEOINFOHEADER *v = (void *) type->pbFormat;
155  dshowdebug(" rcSource: left %ld top %ld right %ld bottom %ld\n",
156  v->rcSource.left, v->rcSource.top, v->rcSource.right, v->rcSource.bottom);
157  dshowdebug(" rcTarget: left %ld top %ld right %ld bottom %ld\n",
158  v->rcTarget.left, v->rcTarget.top, v->rcTarget.right, v->rcTarget.bottom);
159  dshowdebug(" dwBitRate: %lu\n", v->dwBitRate);
160  dshowdebug(" dwBitErrorRate: %lu\n", v->dwBitErrorRate);
161  dshowdebug(" AvgTimePerFrame: %"PRId64"\n", v->AvgTimePerFrame);
162  dump_bih(NULL, &v->bmiHeader);
163  } else if (IsEqualGUID(&type->formattype, &FORMAT_VideoInfo2)) {
164  VIDEOINFOHEADER2 *v = (void *) type->pbFormat;
165  dshowdebug(" rcSource: left %ld top %ld right %ld bottom %ld\n",
166  v->rcSource.left, v->rcSource.top, v->rcSource.right, v->rcSource.bottom);
167  dshowdebug(" rcTarget: left %ld top %ld right %ld bottom %ld\n",
168  v->rcTarget.left, v->rcTarget.top, v->rcTarget.right, v->rcTarget.bottom);
169  dshowdebug(" dwBitRate: %lu\n", v->dwBitRate);
170  dshowdebug(" dwBitErrorRate: %lu\n", v->dwBitErrorRate);
171  dshowdebug(" AvgTimePerFrame: %"PRId64"\n", v->AvgTimePerFrame);
172  dshowdebug(" dwInterlaceFlags: %lu\n", v->dwInterlaceFlags);
173  dshowdebug(" dwCopyProtectFlags: %lu\n", v->dwCopyProtectFlags);
174  dshowdebug(" dwPictAspectRatioX: %lu\n", v->dwPictAspectRatioX);
175  dshowdebug(" dwPictAspectRatioY: %lu\n", v->dwPictAspectRatioY);
176 // dshowdebug(" dwReserved1: %lu\n", v->u.dwReserved1); /* mingw-w64 is buggy and doesn't name unnamed unions */
177  dshowdebug(" dwReserved2: %lu\n", v->dwReserved2);
178  dump_bih(NULL, &v->bmiHeader);
179  } else if (IsEqualGUID(&type->formattype, &FORMAT_WaveFormatEx)) {
180  WAVEFORMATEX *fx = (void *) type->pbFormat;
181  dshowdebug(" wFormatTag: %u\n", fx->wFormatTag);
182  dshowdebug(" nChannels: %u\n", fx->nChannels);
183  dshowdebug(" nSamplesPerSec: %lu\n", fx->nSamplesPerSec);
184  dshowdebug(" nAvgBytesPerSec: %lu\n", fx->nAvgBytesPerSec);
185  dshowdebug(" nBlockAlign: %u\n", fx->nBlockAlign);
186  dshowdebug(" wBitsPerSample: %u\n", fx->wBitsPerSample);
187  dshowdebug(" cbSize: %u\n", fx->cbSize);
188  }
189 #endif
190 }
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