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00032 #ifndef OPAL_CODEC_OPALPLUGIN_H
00033 #define OPAL_CODEC_OPALPLUGIN_H
00034
00035 #ifdef __cplusplus
00036 extern "C" {
00037 #endif
00038
00039 #include <time.h>
00040
00041 #ifdef _MSC_VER
00042 #pragma warning(disable:4201)
00043 #endif
00044
00045 #ifdef _WIN32
00046 # ifdef PLUGIN_CODEC_DLL_EXPORTS
00047 # define PLUGIN_CODEC_DLL_API __declspec(dllexport)
00048 # else
00049 # define PLUGIN_CODEC_DLL_API __declspec(dllimport)
00050 # endif
00051
00052 #else
00053
00054 #define PLUGIN_CODEC_DLL_API
00055
00056 #endif
00057
00058 #ifdef PWLIB_PLUGIN_API_VERSION
00059 #undef PWLIB_PLUGIN_API_VERSION
00060 #endif
00061 #define PWLIB_PLUGIN_API_VERSION 1
00062
00063 #define PLUGIN_CODEC_VERSION 1 // initial version
00064 #define PLUGIN_CODEC_VERSION_WIDEBAND 2 // added wideband
00065 #define PLUGIN_CODEC_VERSION_VIDEO 3 // added video
00066 #define PLUGIN_CODEC_VERSION_FAX 4 // added fax
00067 #define PLUGIN_CODEC_VERSION_OPTIONS 5 // added options handling
00068
00069 #define PLUGIN_CODEC_API_VER_FN PWLibPlugin_GetAPIVersion
00070 #define PLUGIN_CODEC_API_VER_FN_STR "PWLibPlugin_GetAPIVersion"
00071
00072 #define PLUGIN_CODEC_GET_CODEC_FN OpalCodecPlugin_GetCodecs
00073 #define PLUGIN_CODEC_GET_CODEC_FN_STR "OpalCodecPlugin_GetCodecs"
00074
00075 #define PLUGIN_CODEC_API_VER_FN_DECLARE \
00076 PLUGIN_CODEC_DLL_API unsigned int PLUGIN_CODEC_API_VER_FN() \
00077 { return PWLIB_PLUGIN_API_VERSION; }
00078
00079 enum {
00080 PluginCodec_License_None = 0,
00081 PluginCodec_Licence_None = PluginCodec_License_None,
00082 PluginCodec_License_GPL = 1,
00083 PluginCodec_License_MPL = 2,
00084 PluginCodec_License_Freeware = 3,
00085 PluginCodec_License_ResearchAndDevelopmentUseOnly = 4,
00086 PluginCodec_License_BSD = 5,
00087 PluginCodec_License_LGPL = 6,
00088
00089 PluginCodec_License_NoRoyalties = 0x7f,
00090
00091
00092 PluginCodec_License_RoyaltiesRequired = 0x80
00093 };
00094
00095 struct PluginCodec_information {
00096
00097 time_t timestamp;
00098
00099 const char * sourceAuthor;
00100 const char * sourceVersion;
00101 const char * sourceEmail;
00102 const char * sourceURL;
00103 const char * sourceCopyright;
00104 const char * sourceLicense;
00105 unsigned char sourceLicenseCode;
00106
00107 const char * codecDescription;
00108 const char * codecAuthor;
00109 const char * codecVersion;
00110 const char * codecEmail;
00111 const char * codecURL;
00112 const char * codecCopyright;
00113 const char * codecLicense;
00114 unsigned short codecLicenseCode;
00115
00116
00117 };
00118
00119 enum PluginCodec_Flags {
00120 PluginCodec_MediaTypeMask = 0x000f,
00121 PluginCodec_MediaTypeAudio = 0x0000,
00122 PluginCodec_MediaTypeVideo = 0x0001,
00123 PluginCodec_MediaTypeAudioStreamed = 0x0002,
00124 PluginCodec_MediaTypeFax = 0x0003,
00125
00126 PluginCodec_InputTypeMask = 0x0010,
00127 PluginCodec_InputTypeRaw = 0x0000,
00128 PluginCodec_InputTypeRTP = 0x0010,
00129
00130 PluginCodec_OutputTypeMask = 0x0020,
00131 PluginCodec_OutputTypeRaw = 0x0000,
00132 PluginCodec_OutputTypeRTP = 0x0020,
00133
00134 PluginCodec_RTPTypeMask = 0x0040,
00135 PluginCodec_RTPTypeDynamic = 0x0000,
00136 PluginCodec_RTPTypeExplicit = 0x0040,
00137
00138 PluginCodec_RTPSharedMask = 0x0080,
00139 PluginCodec_RTPTypeNotShared = 0x0000,
00140 PluginCodec_RTPTypeShared = 0x0080,
00141
00142 PluginCodec_DecodeSilenceMask = 0x0100,
00143 PluginCodec_NoDecodeSilence = 0x0000,
00144 PluginCodec_DecodeSilence = 0x0100,
00145
00146 PluginCodec_EncodeSilenceMask = 0x0200,
00147 PluginCodec_NoEncodeSilence = 0x0000,
00148 PluginCodec_EncodeSilence = 0x0200,
00149
00150 PluginCodec_MediaExtensionMask = 0x0400,
00151 PluginCodec_MediaTypeExtVideo = 0x0400,
00152
00153 PluginCodec_ComfortNoiseMask = 0x0800,
00154 PluginCodec_ComfortNoise = 0x0800,
00155
00156 PluginCodec_EmptyPayloadMask = 0x1000,
00157 PluginCodec_EmptyPayload = 0x1000,
00158
00159 PluginCodec_OtherPayloadMask = 0x2000,
00160 PluginCodec_OtherPayload = 0x2000,
00161
00162 PluginCodec_BitsPerSamplePos = 12,
00163 PluginCodec_BitsPerSampleMask = 0xf000,
00164 };
00165
00166 enum PluginCodec_CoderFlags {
00167 PluginCodec_CoderSilenceFrame = 1,
00168 PluginCodec_CoderForceIFrame = 2
00169 };
00170
00171 enum PluginCodec_ReturnCoderFlags {
00172 PluginCodec_ReturnCoderLastFrame = 1,
00173 PluginCodec_ReturnCoderIFrame = 2,
00174 PluginCodec_ReturnCoderRequestIFrame = 4
00175 };
00176
00177 struct PluginCodec_Definition;
00178
00179
00180
00181 #define PLUGINCODEC_CONTROL_VALID_FOR_PROTOCOL "valid_for_protocol"
00182 #define PLUGINCODEC_CONTROL_GET_CODEC_OPTIONS "get_codec_options"
00183 #define PLUGINCODEC_CONTROL_FREE_CODEC_OPTIONS "free_codec_options"
00184 #define PLUGINCODEC_CONTROL_GET_OUTPUT_DATA_SIZE "get_output_data_size"
00185 #define PLUGINCODEC_CONTROL_SET_CODEC_OPTIONS "set_codec_options"
00186 #define PLUGINCODEC_CONTROL_TO_NORMALISED_OPTIONS "to_normalised_options"
00187 #define PLUGINCODEC_CONTROL_TO_CUSTOMISED_OPTIONS "to_customised_options"
00188 #define PLUGINCODEC_CONTROL_SET_INSTANCE_ID "set_instance_id"
00189 #define PLUGINCODEC_CONTROL_SET_LOG_FUNCTION "set_log_function"
00190
00191
00192
00193
00194
00195
00196
00197 typedef int (*PluginCodec_LogFunction)(unsigned level,
00198 const char * file,
00199 unsigned line,
00200 const char * section,
00201 const char * log);
00202
00203
00204 struct PluginCodec_ControlDefn {
00205 const char * name;
00206 int (*control)(const struct PluginCodec_Definition * codec, void * context,
00207 const char * name, void * parm, unsigned * parmLen);
00208
00209 };
00210
00211 enum PluginCodec_OptionTypes {
00212 PluginCodec_StringOption,
00213 PluginCodec_BoolOption,
00214 PluginCodec_IntegerOption,
00215 PluginCodec_RealOption,
00216 PluginCodec_EnumOption,
00217 PluginCodec_OctetsOption,
00218 PluginCodec_NumOptionTypes,
00219 };
00220
00221 enum PluginCodec_OptionMerge {
00222 PluginCodec_NoMerge,
00223 PluginCodec_MinMerge,
00224 PluginCodec_MaxMerge,
00225 PluginCodec_EqualMerge,
00226 PluginCodec_NotEqualMerge,
00227 PluginCodec_AlwaysMerge,
00228 PluginCodec_CustomMerge,
00229 PluginCodec_NumOptionMerge,
00230
00231 PluginCodec_AndMerge = PluginCodec_MinMerge,
00232 PluginCodec_OrMerge = PluginCodec_MaxMerge
00233 };
00234
00235 #define PluginCodec_H245_Collapsing 0x40000000
00236 #define PluginCodec_H245_NonCollapsing 0x20000000
00237 #define PluginCodec_H245_Unsigned32 0x10000000
00238 #define PluginCodec_H245_BooleanArray 0x08000000
00239 #define PluginCodec_H245_TCS 0x04000000
00240 #define PluginCodec_H245_OLC 0x02000000
00241 #define PluginCodec_H245_ReqMode 0x01000000
00242 #define PluginCodec_H245_OrdinalMask 0x0000ffff
00243
00244 typedef int (*PluginCodec_MergeFunction)(char ** result, const char * dest, const char * src);
00245 typedef void (*PluginCodec_FreeFunction)(char * string);
00246
00247 struct PluginCodec_Option {
00248
00249 enum PluginCodec_OptionTypes m_type;
00250 const char * m_name;
00251 unsigned m_readOnly;
00252 enum PluginCodec_OptionMerge m_merge;
00253 const char * m_value;
00254 const char * m_FMTPName;
00255 const char * m_FMTPDefault;
00256 int m_H245Generic;
00257 const char * m_minimum;
00258 const char * m_maximum;
00259 PluginCodec_MergeFunction m_mergeFunction;
00260 PluginCodec_FreeFunction m_freeFunction;
00261 };
00262
00263
00264
00265 #define PLUGINCODEC_OPTION_NEEDS_JITTER "Needs Jitter"
00266 #define PLUGINCODEC_OPTION_CLOCK_RATE "Clock Rate"
00267 #define PLUGINCODEC_OPTION_FRAME_TIME "Frame Time"
00268 #define PLUGINCODEC_OPTION_MAX_FRAME_SIZE "Max Frame Size"
00269 #define PLUGINCODEC_OPTION_MAX_BIT_RATE "Max Bit Rate"
00270 #define PLUGINCODEC_OPTION_TARGET_BIT_RATE "Target Bit Rate"
00271 #define PLUGINCODEC_OPTION_RX_FRAMES_PER_PACKET "Rx Frames Per Packet"
00272 #define PLUGINCODEC_OPTION_TX_FRAMES_PER_PACKET "Tx Frames Per Packet"
00273 #define PLUGINCODEC_OPTION_FRAME_WIDTH "Frame Width"
00274 #define PLUGINCODEC_OPTION_FRAME_HEIGHT "Frame Height"
00275 #define PLUGINCODEC_OPTION_MIN_RX_FRAME_WIDTH "Min Rx Frame Width"
00276 #define PLUGINCODEC_OPTION_MIN_RX_FRAME_HEIGHT "Min Rx Frame Height"
00277 #define PLUGINCODEC_OPTION_MAX_RX_FRAME_WIDTH "Max Rx Frame Width"
00278 #define PLUGINCODEC_OPTION_MAX_RX_FRAME_HEIGHT "Max Rx Frame Height"
00279 #define PLUGINCODEC_OPTION_TEMPORAL_SPATIAL_TRADE_OFF "Temporal Spatial Trade Off"
00280 #define PLUGINCODEC_OPTION_TX_KEY_FRAME_PERIOD "Tx Key Frame Period"
00281 #define PLUGINCODEC_OPTION_TIAS "Bandwidth-TIAS"
00282 #define PLUGINCODEC_OPTION_MAXPRATE "MaxPRate"
00283
00284
00285
00286
00287
00288 struct PluginCodec_Definition {
00289 unsigned int version;
00290
00291
00292 struct PluginCodec_information * info;
00293
00294 unsigned int flags;
00295
00296
00297
00298
00299
00300 const char * descr;
00301
00302 const char * sourceFormat;
00303 const char * destFormat;
00304
00305 const void * userData;
00306
00307 unsigned int sampleRate;
00308 unsigned int bitsPerSec;
00309 unsigned int usPerFrame;
00310
00311 union _parm {
00312 struct _audio {
00313 unsigned int samplesPerFrame;
00314 unsigned int bytesPerFrame;
00315 unsigned int recommendedFramesPerPacket;
00316 unsigned int maxFramesPerPacket;
00317 } audio;
00318 struct _video {
00319 unsigned int maxFrameWidth;
00320 unsigned int maxFrameHeight;
00321 unsigned int recommendedFrameRate;
00322 unsigned int maxFrameRate;
00323 } video;
00324 } parm;
00325
00326 unsigned char rtpPayload;
00327 const char * sdpFormat;
00328
00329 void * (*createCodec)(const struct PluginCodec_Definition * codec);
00330 void (*destroyCodec) (const struct PluginCodec_Definition * codec, void * context);
00331 int (*codecFunction) (const struct PluginCodec_Definition * codec, void * context,
00332 const void * from, unsigned * fromLen,
00333 void * to, unsigned * toLen,
00334 unsigned int * flag);
00335 struct PluginCodec_ControlDefn * codecControls;
00336
00337
00338 unsigned char h323CapabilityType;
00339 const void * h323CapabilityData;
00340
00341
00342
00343
00344
00345 };
00346
00347 typedef struct PluginCodec_Definition * (* PluginCodec_GetCodecFunction)(unsigned int *, unsigned int);
00348 typedef unsigned (* PluginCodec_GetAPIVersionFunction)();
00349
00351
00352
00353
00354
00355
00356 struct PluginCodec_H323CapabilityExtension {
00357 unsigned int index;
00358 void * data;
00359 unsigned dataLength;
00360 };
00361
00362 struct PluginCodec_H323NonStandardCodecData {
00363 const char * objectId;
00364 unsigned char t35CountryCode;
00365 unsigned char t35Extension;
00366 unsigned short manufacturerCode;
00367 const unsigned char * data;
00368 unsigned int dataLength;
00369 int (*capabilityMatchFunction)(struct PluginCodec_H323NonStandardCodecData *);
00370 };
00371
00372
00373 struct PluginCodec_H323GenericParameterDefinition
00374 {
00375
00376
00377
00378
00379
00380 #ifndef SOLARIS
00381 struct {
00382 #endif
00383 int collapsing:1;
00384 int excludeTCS:1;
00385 int excludeOLC:1;
00386 int excludeReqMode:1;
00387 int readOnly:1;
00388 #ifndef SOLARIS
00389 };
00390 #endif
00391
00392 unsigned int id;
00393
00394 enum PluginCodec_H323GenericParameterType {
00395
00396
00397
00398 PluginCodec_GenericParameter_Logical = 0,
00399 PluginCodec_GenericParameter_BooleanArray,
00400 PluginCodec_GenericParameter_UnsignedMin,
00401 PluginCodec_GenericParameter_UnsignedMax,
00402 PluginCodec_GenericParameter_Unsigned32Min,
00403 PluginCodec_GenericParameter_Unsigned32Max,
00404 PluginCodec_GenericParameter_OctetString,
00405 PluginCodec_GenericParameter_GenericParameter,
00406
00407 PluginCodec_GenericParameter_logical = 0,
00408 PluginCodec_GenericParameter_booleanArray,
00409 PluginCodec_GenericParameter_unsignedMin,
00410 PluginCodec_GenericParameter_unsignedMax,
00411 PluginCodec_GenericParameter_unsigned32Min,
00412 PluginCodec_GenericParameter_unsigned32Max,
00413 PluginCodec_GenericParameter_octetString,
00414 PluginCodec_GenericParameter_genericParameter
00415 } type;
00416
00417 union {
00418 unsigned long integer;
00419 const char * octetstring;
00420 struct PluginCodec_H323GenericParameterDefinition *genericparameter;
00421 } value;
00422 };
00423
00424 struct PluginCodec_H323GenericCodecData
00425 {
00426
00427
00428 const char * standardIdentifier;
00429 unsigned int maxBitRate;
00430
00431
00432
00433 unsigned int nParameters;
00434
00435 const struct PluginCodec_H323GenericParameterDefinition *params;
00436 };
00437
00438
00439 struct PluginCodec_H323AudioGSMData {
00440 int comfortNoise:1;
00441 int scrambled:1;
00442 };
00443
00444 struct PluginCodec_H323AudioG7231AnnexC {
00445 unsigned char maxAl_sduAudioFrames;
00446 int silenceSuppression:1;
00447 int highRateMode0:6;
00448 int highRateMode1:6;
00449 int lowRateMode0:6;
00450 int lowRateMode1:6;
00451 int sidMode0:4;
00452 int sidMode1:4;
00453 };
00454
00455
00456 enum {
00457 PluginCodec_H323Codec_undefined,
00458 PluginCodec_H323Codec_programmed,
00459 PluginCodec_H323Codec_nonStandard,
00460 PluginCodec_H323Codec_generic,
00461
00462
00463 PluginCodec_H323AudioCodec_g711Alaw_64k,
00464 PluginCodec_H323AudioCodec_g711Alaw_56k,
00465 PluginCodec_H323AudioCodec_g711Ulaw_64k,
00466 PluginCodec_H323AudioCodec_g711Ulaw_56k,
00467 PluginCodec_H323AudioCodec_g722_64k,
00468 PluginCodec_H323AudioCodec_g722_56k,
00469 PluginCodec_H323AudioCodec_g722_48k,
00470 PluginCodec_H323AudioCodec_g7231,
00471 PluginCodec_H323AudioCodec_g728,
00472 PluginCodec_H323AudioCodec_g729,
00473 PluginCodec_H323AudioCodec_g729AnnexA,
00474 PluginCodec_H323AudioCodec_is11172,
00475 PluginCodec_H323AudioCodec_is13818Audio,
00476 PluginCodec_H323AudioCodec_g729wAnnexB,
00477 PluginCodec_H323AudioCodec_g729AnnexAwAnnexB,
00478 PluginCodec_H323AudioCodec_g7231AnnexC,
00479 PluginCodec_H323AudioCodec_gsmFullRate,
00480 PluginCodec_H323AudioCodec_gsmHalfRate,
00481 PluginCodec_H323AudioCodec_gsmEnhancedFullRate,
00482 PluginCodec_H323AudioCodec_g729Extensions,
00483
00484
00485 PluginCodec_H323VideoCodec_h261,
00486 PluginCodec_H323VideoCodec_h262,
00487 PluginCodec_H323VideoCodec_h263,
00488 PluginCodec_H323VideoCodec_is11172,
00489
00490
00491 PluginCodec_H323VideoCodec_Extended,
00492 PluginCodec_H323T38Codec,
00493
00494
00495 PluginCodec_H323Codec_NoH323 = 0xff,
00496 };
00497
00499
00500
00501
00502
00503
00504
00505 #define OpalPluginCodec_Identifer_AMR "0.0.8.245.1.1.1"
00506
00507
00508 #define OpalPluginCodec_Identifer_AMR_NB "0.0.8.245.1.1.9"
00509 #define OpalPluginCodec_Identifer_AMR_WB "0.0.8.245.1.1.10"
00510
00511
00512 #define OpalPluginCodec_Identifer_G7221 "0.0.7.7221.1.0"
00513 #define OpalPluginCodec_Identifer_G7221ext "0.0.7.7221.1.1.0"
00514
00515
00516 #define OpalPluginCodec_Identifer_G7222 "0.0.7.7222.1.0"
00517
00518
00519 #define OpalPluginCodec_Identifer_iLBC "0.0.8.245.1.1.11"
00520
00521
00522
00523
00524
00525 #define OpalPluginCodec_Identifer_H264_Aligned "0.0.8.241.0.0.0.0"
00526 #define OpalPluginCodec_Identifer_H264_NonInterleaved "0.0.8.241.0.0.0.1"
00527 #define OpalPluginCodec_Identifer_H264_Interleaved "0.0.8.241.0.0.0.2"
00528 #define OpalPluginCodec_Identifer_H264_Generic "0.0.8.241.0.0.1"
00529
00530
00531 #define OpalPluginCodec_Identifer_MPEG4 "0.0.8.245.1.0.0"
00532
00533
00535
00536
00537
00538
00539 #define PLUGINCODEC_SQCIF_MPI "SQCIF MPI"
00540 #define PLUGINCODEC_QCIF_MPI "QCIF MPI"
00541 #define PLUGINCODEC_CIF_MPI "CIF MPI"
00542 #define PLUGINCODEC_CIF4_MPI "CIF4 MPI"
00543 #define PLUGINCODEC_CIF16_MPI "CIF16 MPI"
00544
00545 #define PLUGINCODEC_MPI_DISABLED 33
00546
00547 #define PLUGINCODEC_MEDIA_PACKETIZATION "Media Packetization"
00548 #define PLUGINCODEC_MEDIA_PACKETIZATIONS "Media Packetizations"
00549
00550 #define H261_ANNEX_D "Annex D - Still Image Transmit"
00551 #define H263_ANNEX_F "Annex F - Advanced Prediction"
00552 #define H263_ANNEX_I "Annex I - Advanced INTRA Coding"
00553 #define H263_ANNEX_J "Annex J - Deblocking Filter"
00554 #define H263_ANNEX_T "Annex T - Modified Quantization"
00555
00556 #ifndef STRINGIZE
00557 #define __INTERNAL_STRINGIZE__(v) #v
00558 #define STRINGIZE(v) __INTERNAL_STRINGIZE__(v)
00559 #endif
00560
00561
00563
00564
00565
00566
00567 #define PluginCodec_RTP_MaxPacketSize (1518-14-4-8-20-16) // Max Ethernet packet (1518 bytes) minus 802.3/CRC, 802.3, IP, UDP headers
00568 #define PluginCodec_RTP_MinHeaderSize (12)
00569 #define PluginCodec_RTP_MaxPayloadSize (PluginCodec_RTP_MaxPacketSize - PluginCodec_RTP_MinHeaderSize)
00570
00571 #define PluginCodec_RTP_GetHeaderLength(ptr) ((((unsigned char*)(ptr))[0] & 0x0f)*4 + PluginCodec_RTP_MinHeaderSize)
00572 #define PluginCodec_RTP_GetPayloadPtr(ptr) ((unsigned char*)(ptr) + PluginCodec_RTP_GetHeaderLength(ptr))
00573 #define PluginCodec_RTP_GetPayloadType(ptr) (((unsigned char*)(ptr))[1] & 0x7f)
00574 #define PluginCodec_RTP_SetPayloadType(ptr, type) (((unsigned char*)(ptr))[1] = (((unsigned char*)(ptr))[1] & 0x80) | (type & 0x7f))
00575 #define PluginCodec_RTP_GetMarker(ptr) ((((unsigned char*)(ptr))[1] & 0x80) != 0)
00576 #define PluginCodec_RTP_SetMarker(ptr, mark) (((unsigned char*)(ptr))[1] = (((unsigned char*)(ptr))[1] & 0x7f) | (mark != 0 ? 0x80 : 0))
00577 #define PluginCodec_RTP_GetTimestamp(ptr) ((((unsigned char*)(ptr))[4] << 24) | (((unsigned char*)(ptr))[5] << 16) | (((unsigned char*)(ptr))[6] << 8) | ((unsigned char*)(ptr))[7])
00578 #define PluginCodec_RTP_SetTimestamp(ptr, ts) ((((unsigned char*)(ptr))[4] = ((ts) >> 24)),(((unsigned char*)(ptr))[5] = ((ts) >> 16)),(((unsigned char*)(ptr))[6] = ((ts) >> 8)),(((unsigned char*)(ptr))[7] = (ts)))
00579 #define PluginCodec_RTP_GetSequenceNumber(ptr) ((((unsigned char*)(ptr))[2] << 8) | ((unsigned char*)(ptr))[3])
00580 #define PluginCodec_RTP_SetSequenceNumber(ptr, sn)((((unsigned char*)(ptr))[2] = ((sn) >> 8)),(((unsigned char*)(ptr))[3] = (sn)))
00581
00582
00584
00585
00586
00587
00588 struct PluginCodec_Video_FrameHeader {
00589 unsigned int x;
00590 unsigned int y;
00591 unsigned int width;
00592 unsigned int height;
00593 };
00594
00595 #ifdef __cplusplus
00596 };
00597
00598 inline unsigned char * OPAL_VIDEO_FRAME_DATA_PTR(struct PluginCodec_Video_FrameHeader * base)
00599 { return (((unsigned char *)base) + sizeof(PluginCodec_Video_FrameHeader)); }
00600
00601 inline unsigned char * OPAL_VIDEO_FRAME_DATA_PTR(const PluginCodec_Video_FrameHeader * base)
00602 { return (((unsigned char *)base) + sizeof(PluginCodec_Video_FrameHeader)); }
00603
00604 extern "C" {
00605 #endif
00606
00607 #define PLUGIN_CODEC_VIDEO_SET_FRAME_SIZE_FN "set_frame_size" // argument is struct PluginCodec_VideoSetFrameInfo
00608 struct PluginCodec_Video_SetFrameInfo {
00609 int width;
00610 int height;
00611 };
00612
00613
00615
00616
00617
00618
00619 #ifdef OPAL_STATIC_CODEC
00620
00621 # undef PLUGIN_CODEC_DLL_API
00622 # define PLUGIN_CODEC_DLL_API static
00623 # define PLUGIN_CODEC_IMPLEMENT(name) \
00624 unsigned int Opal_StaticCodec_##name##_GetAPIVersion() \
00625 { return PWLIB_PLUGIN_API_VERSION; } \
00626 static struct PluginCodec_Definition * PLUGIN_CODEC_GET_CODEC_FN(unsigned * count, unsigned ); \
00627 struct PluginCodec_Definition * Opal_StaticCodec_##name##_GetCodecs(unsigned * p1, unsigned p2) \
00628 { return PLUGIN_CODEC_GET_CODEC_FN(p1,p2); } \
00629
00630 # define PLUGIN_CODEC_IMPLEMENT_ALL(name, table, ver) \
00631 unsigned int Opal_StaticCodec_##name##_GetAPIVersion() \
00632 { return PWLIB_PLUGIN_API_VERSION; } \
00633 PLUGIN_CODEC_DLL_API struct PluginCodec_Definition * Opal_StaticCodec_##name##_GetCodecs(unsigned * count, unsigned version) \
00634 { *count = sizeof(table)/sizeof(struct PluginCodec_Definition); return version < ver ? NULL : table; }
00635
00636
00637 #else
00638
00639 # define PLUGIN_CODEC_IMPLEMENT(name) \
00640 PLUGIN_CODEC_DLL_API unsigned int PLUGIN_CODEC_API_VER_FN() \
00641 { return PWLIB_PLUGIN_API_VERSION; } \
00642
00643 # define PLUGIN_CODEC_IMPLEMENT_ALL(name, table, ver) \
00644 PLUGIN_CODEC_IMPLEMENT(name) \
00645 PLUGIN_CODEC_DLL_API struct PluginCodec_Definition * PLUGIN_CODEC_GET_CODEC_FN(unsigned * count, unsigned version) \
00646 { *count = sizeof(table)/sizeof(struct PluginCodec_Definition); return version < ver ? NULL : table; }
00647
00648
00649 #endif
00650
00651 #ifdef __cplusplus
00652 };
00653 #endif
00654
00655
00656 #ifdef _MSC_VER
00657 #pragma warning(default:4201)
00658 #endif
00659
00660 #endif // OPAL_CODEC_OPALPLUGIN_H