Aegisub/aegisub/libffms/ffavsfilters.cpp

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// Copyright (c) 2007-2009 Fredrik Mellbin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <string>
#include "ffms.h"
#include "ffavisynth.h"
#include "ffswscale.h"
#include "ffpp.h"
static int GetNumberOfLogicalCPUs() {
SYSTEM_INFO SI;
GetSystemInfo(&SI);
return SI.dwNumberOfProcessors;
}
static AVSValue __cdecl CreateFFIndex(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
FFMS_Init();
char ErrorMsg[1024];
unsigned MsgSize = sizeof(ErrorMsg);
if (!Args[0].Defined())
Env->ThrowError("FFIndex: No source specified");
const char *Source = Args[0].AsString();
const char *CacheFile = Args[1].AsString("");
int IndexMask = Args[2].AsInt(-1);
int DumpMask = Args[3].AsInt(0);
const char *AudioFile = Args[4].AsString("");
bool OverWrite = Args[5].AsBool(false);
std::string DefaultCache(Source);
DefaultCache.append(".ffindex");
if (!strcmp(CacheFile, ""))
CacheFile = DefaultCache.c_str();
if (!strcmp(AudioFile, ""))
AudioFile = Source;
// Return values
// 0: Index already present
// 1: Index generated
// 2: Index forced to be overwritten
FFIndex *Index = NULL;
if (OverWrite || !(Index = FFMS_ReadIndex(CacheFile, ErrorMsg, MsgSize))) {
if (!(Index = FFMS_MakeIndex(Source, IndexMask, DumpMask, FFMS_DefaultAudioFilename, NULL, true, NULL, NULL, ErrorMsg, MsgSize)))
Env->ThrowError("FFIndex: %s", ErrorMsg);
if (FFMS_WriteIndex(CacheFile, Index, ErrorMsg, MsgSize)) {
FFMS_DestroyIndex(Index);
Env->ThrowError("FFIndex: %s", ErrorMsg);
}
FFMS_DestroyIndex(Index);
if (!OverWrite)
return AVSValue(1);
else
return AVSValue(2);
} else {
FFMS_DestroyIndex(Index);
return AVSValue(0);
}
}
static AVSValue __cdecl CreateFFVideoSource(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
FFMS_Init();
char ErrorMsg[1024];
unsigned MsgSize = sizeof(ErrorMsg);
if (!Args[0].Defined())
Env->ThrowError("FFVideoSource: No source specified");
const char *Source = Args[0].AsString();
int Track = Args[1].AsInt(-1);
bool Cache = Args[2].AsBool(true);
const char *CacheFile = Args[3].AsString("");
int FPSNum = Args[4].AsInt(-1);
int FPSDen = Args[5].AsInt(1);
const char *PP = Args[6].AsString("");
int Threads = Args[7].AsInt(-1);
const char *Timecodes = Args[8].AsString("");
int SeekMode = Args[9].AsInt(1);
if (Track <= -2)
Env->ThrowError("FFVideoSource: No video track selected");
if (SeekMode < -1 || SeekMode > 3)
Env->ThrowError("FFVideoSource: Invalid seekmode selected");
if (Threads <= 0)
Threads = GetNumberOfLogicalCPUs();
if (Threads < 1)
Env->ThrowError("FFVideoSource: Invalid thread count");
if (!_stricmp(Source, Timecodes))
Env->ThrowError("FFVideoSource: Timecodes will overwrite the source");
std::string DefaultCache(Source);
DefaultCache.append(".ffindex");
if (!strcmp(CacheFile, ""))
CacheFile = DefaultCache.c_str();
FFIndex *Index = NULL;
if (Cache)
Index = FFMS_ReadIndex(CacheFile, ErrorMsg, MsgSize);
if (!Index) {
if (!(Index = FFMS_MakeIndex(Source, 0, 0, NULL, NULL, true, NULL, NULL, ErrorMsg, MsgSize)))
Env->ThrowError("FFVideoSource: %s", ErrorMsg);
if (Cache)
if (FFMS_WriteIndex(CacheFile, Index, ErrorMsg, MsgSize)) {
FFMS_DestroyIndex(Index);
Env->ThrowError("FFVideoSource: %s", ErrorMsg);
}
}
if (Track == -1)
Track = FFMS_GetFirstIndexedTrackOfType(Index, FFMS_TYPE_VIDEO, ErrorMsg, MsgSize);
if (Track < 0)
Env->ThrowError("FFVideoSource: No video track found");
if (strcmp(Timecodes, "")) {
if (FFMS_WriteTimecodes(FFMS_GetTrackFromIndex(Index, Track), Timecodes, ErrorMsg, MsgSize)) {
FFMS_DestroyIndex(Index);
Env->ThrowError("FFVideoSource: %s", ErrorMsg);
}
}
AvisynthVideoSource *Filter;
try {
Filter = new AvisynthVideoSource(Source, Track, Index, FPSNum, FPSDen, PP, Threads, SeekMode, Env, ErrorMsg, MsgSize);
} catch (...) {
FFMS_DestroyIndex(Index);
throw;
}
FFMS_DestroyIndex(Index);
return Filter;
}
static AVSValue __cdecl CreateFFAudioSource(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
FFMS_Init();
char ErrorMsg[1024];
unsigned MsgSize = sizeof(ErrorMsg);
if (!Args[0].Defined())
Env->ThrowError("FFAudioSource: No source specified");
const char *Source = Args[0].AsString();
int Track = Args[1].AsInt(-1);
bool Cache = Args[2].AsBool(true);
const char *CacheFile = Args[3].AsString("");
if (Track <= -2)
Env->ThrowError("FFAudioSource: No audio track selected");
std::string DefaultCache(Source);
DefaultCache.append(".ffindex");
if (!strcmp(CacheFile, ""))
CacheFile = DefaultCache.c_str();
FFIndex *Index = NULL;
if (Cache)
Index = FFMS_ReadIndex(CacheFile, ErrorMsg, MsgSize);
// Index needs to be remade if it is an unindexed audio track
if (Index && Track >= 0 && Track < FFMS_GetNumTracks(Index)
&& FFMS_GetTrackType(FFMS_GetTrackFromIndex(Index, Track)) == FFMS_TYPE_AUDIO
&& FFMS_GetNumFrames(FFMS_GetTrackFromIndex(Index, Track)) == 0) {
FFMS_DestroyIndex(Index);
Index = NULL;
}
// More complicated for finding a default track, reindex the file if at least one audio track exists
if (Index && FFMS_GetFirstTrackOfType(Index, FFMS_TYPE_AUDIO, ErrorMsg, MsgSize) >= 0
&& FFMS_GetFirstIndexedTrackOfType(Index, FFMS_TYPE_AUDIO, ErrorMsg, MsgSize) < 0) {
for (int i = 0; i < FFMS_GetNumTracks(Index); i++) {
if (FFMS_GetTrackType(FFMS_GetTrackFromIndex(Index, i)) == FFMS_TYPE_AUDIO) {
FFMS_DestroyIndex(Index);
Index = NULL;
break;
}
}
}
if (!Index) {
if (!(Index = FFMS_MakeIndex(Source, -1, 0, NULL, NULL, true, NULL, NULL, ErrorMsg, MsgSize)))
Env->ThrowError("FFAudioSource: %s", ErrorMsg);
if (Cache)
if (FFMS_WriteIndex(CacheFile, Index, ErrorMsg, MsgSize)) {
FFMS_DestroyIndex(Index);
Env->ThrowError("FFAudioSource: %s", ErrorMsg);
}
}
if (Track == -1)
Track = FFMS_GetFirstIndexedTrackOfType(Index, FFMS_TYPE_AUDIO, ErrorMsg, MsgSize);
if (Track < 0)
Env->ThrowError("FFAudioSource: No audio track found");
AvisynthAudioSource *Filter;
try {
Filter = new AvisynthAudioSource(Source, Track, Index, Env, ErrorMsg, MsgSize);
} catch (...) {
FFMS_DestroyIndex(Index);
throw;
}
FFMS_DestroyIndex(Index);
return Filter;
}
static AVSValue __cdecl CreateFFPP(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
return new FFPP(Args[0].AsClip(), Args[1].AsString(""), Env);
}
static AVSValue __cdecl CreateSWScale(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
return new SWScale(Args[0].AsClip(), Args[1].AsInt(0), Args[2].AsInt(0), Args[3].AsString("BICUBIC"), Args[4].AsString(""), Env);
}
static AVSValue __cdecl FFGetLogLevel(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
return FFMS_GetLogLevel();
}
static AVSValue __cdecl FFSetLogLevel(AVSValue Args, void* UserData, IScriptEnvironment* Env) {
FFMS_SetLogLevel(Args[0].AsInt());
return FFMS_GetLogLevel();
}
extern "C" __declspec(dllexport) const char* __stdcall AvisynthPluginInit2(IScriptEnvironment* Env) {
Env->AddFunction("FFIndex", "[source]s[cachefile]s[indexmask]i[dumpmask]i[audiofile]s[overwrite]b", CreateFFIndex, 0);
Env->AddFunction("FFVideoSource", "[source]s[track]i[cache]b[cachefile]s[fpsnum]i[fpsden]i[pp]s[threads]i[timecodes]s[seekmode]i", CreateFFVideoSource, 0);
Env->AddFunction("FFAudioSource", "[source]s[track]i[cache]b[cachefile]s", CreateFFAudioSource, 0);
Env->AddFunction("FFPP", "c[pp]s", CreateFFPP, 0);
Env->AddFunction("SWScale", "c[width]i[height]i[resizer]s[colorspace]s", CreateSWScale, 0);
Env->AddFunction("FFGetLogLevel", "", FFGetLogLevel, 0);
Env->AddFunction("FFSetLogLevel", "i", FFSetLogLevel, 0);
return "FFmpegSource - The Second Coming";
}