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Rev | Author | Line No. | Line |
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6148 | serge | 1 | /* |
2 | * DirectShow capture interface |
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3 | * Copyright (c) 2010 Ramiro Polla |
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4 | * |
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5 | * This file is part of FFmpeg. |
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6 | * |
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7 | * FFmpeg is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU Lesser General Public |
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9 | * License as published by the Free Software Foundation; either |
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10 | * version 2.1 of the License, or (at your option) any later version. |
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11 | * |
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12 | * FFmpeg is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | * Lesser General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU Lesser General Public |
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18 | * License along with FFmpeg; if not, write to the Free Software |
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | */ |
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21 | |||
22 | #include "dshow_capture.h" |
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23 | |||
24 | DECLARE_QUERYINTERFACE(libAVEnumPins, |
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25 | { {&IID_IUnknown,0}, {&IID_IEnumPins,0} }) |
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26 | DECLARE_ADDREF(libAVEnumPins) |
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27 | DECLARE_RELEASE(libAVEnumPins) |
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28 | |||
29 | long WINAPI |
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30 | libAVEnumPins_Next(libAVEnumPins *this, unsigned long n, IPin **pins, |
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31 | unsigned long *fetched) |
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32 | { |
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33 | int count = 0; |
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34 | dshowdebug("libAVEnumPins_Next(%p)\n", this); |
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35 | if (!pins) |
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36 | return E_POINTER; |
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37 | if (!this->pos && n == 1) { |
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38 | libAVPin_AddRef(this->pin); |
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39 | *pins = (IPin *) this->pin; |
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40 | count = 1; |
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41 | this->pos = 1; |
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42 | } |
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43 | if (fetched) |
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44 | *fetched = count; |
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45 | if (!count) |
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46 | return S_FALSE; |
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47 | return S_OK; |
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48 | } |
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49 | long WINAPI |
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50 | libAVEnumPins_Skip(libAVEnumPins *this, unsigned long n) |
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51 | { |
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52 | dshowdebug("libAVEnumPins_Skip(%p)\n", this); |
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53 | if (n) /* Any skip will always fall outside of the only valid pin. */ |
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54 | return S_FALSE; |
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55 | return S_OK; |
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56 | } |
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57 | long WINAPI |
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58 | libAVEnumPins_Reset(libAVEnumPins *this) |
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59 | { |
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60 | dshowdebug("libAVEnumPins_Reset(%p)\n", this); |
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61 | this->pos = 0; |
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62 | return S_OK; |
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63 | } |
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64 | long WINAPI |
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65 | libAVEnumPins_Clone(libAVEnumPins *this, libAVEnumPins **pins) |
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66 | { |
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67 | libAVEnumPins *new; |
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68 | dshowdebug("libAVEnumPins_Clone(%p)\n", this); |
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69 | if (!pins) |
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70 | return E_POINTER; |
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71 | new = libAVEnumPins_Create(this->pin, this->filter); |
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72 | if (!new) |
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73 | return E_OUTOFMEMORY; |
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74 | new->pos = this->pos; |
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75 | *pins = new; |
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76 | return S_OK; |
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77 | } |
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78 | |||
79 | static int |
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80 | libAVEnumPins_Setup(libAVEnumPins *this, libAVPin *pin, libAVFilter *filter) |
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81 | { |
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82 | IEnumPinsVtbl *vtbl = this->vtbl; |
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83 | SETVTBL(vtbl, libAVEnumPins, QueryInterface); |
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84 | SETVTBL(vtbl, libAVEnumPins, AddRef); |
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85 | SETVTBL(vtbl, libAVEnumPins, Release); |
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86 | SETVTBL(vtbl, libAVEnumPins, Next); |
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87 | SETVTBL(vtbl, libAVEnumPins, Skip); |
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88 | SETVTBL(vtbl, libAVEnumPins, Reset); |
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89 | SETVTBL(vtbl, libAVEnumPins, Clone); |
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90 | |||
91 | this->pin = pin; |
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92 | this->filter = filter; |
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93 | libAVFilter_AddRef(this->filter); |
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94 | |||
95 | return 1; |
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96 | } |
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97 | static int |
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98 | libAVEnumPins_Cleanup(libAVEnumPins *this) |
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99 | { |
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100 | libAVFilter_Release(this->filter); |
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101 | return 1; |
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102 | } |
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103 | DECLARE_CREATE(libAVEnumPins, libAVEnumPins_Setup(this, pin, filter), |
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104 | libAVPin *pin, libAVFilter *filter) |
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105 | DECLARE_DESTROY(libAVEnumPins, libAVEnumPins_Cleanup) |