Aegisub/aegisub/FFmpegSource2/ffavisynth.cpp
Fredrik Mellbin 38c420c7bd FFMS2:
Renamed a public api function just because I can
Less access violations (AGAIN!)
Dumping now implies indexing too
Much better logic for automatically indexing files when FFAudioSource is used in avisynth
Changed defaults for FFIndex
Now FFmpeg's internal codec lists are used for lookup from the non-lavf based parts

Originally committed to SVN as r2991.
2009-05-28 19:33:14 +00:00

175 lines
6.6 KiB
C++

// 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 "ffavisynth.h"
#include <cmath>
AvisynthVideoSource::AvisynthVideoSource(const char *SourceFile, int Track, FFIndex *Index, int FPSNum, int FPSDen, const char *PP, int Threads, int SeekMode, IScriptEnvironment* Env, char *ErrorMsg, unsigned MsgSize) {
memset(&VI, 0, sizeof(VI));
this->FPSNum = FPSNum;
this->FPSDen = FPSDen;
V = FFMS_CreateVideoSource(SourceFile, Track, Index, PP, Threads, SeekMode, ErrorMsg, MsgSize);
if (!V)
Env->ThrowError(ErrorMsg);
try {
InitOutputFormat(Env);
} catch (AvisynthError &) {
FFMS_DestroyVideoSource(V);
throw;
}
const TVideoProperties *VP = FFMS_GetVideoProperties(V);
if (FPSNum > 0 && FPSDen > 0) {
VI.fps_denominator = FPSDen;
VI.fps_numerator = FPSNum;
VI.num_frames = static_cast<int>(ceil(((VP->LastTime - VP->FirstTime) * FPSNum) / FPSDen));
} else {
VI.fps_denominator = VP->FPSDenominator;
VI.fps_numerator = VP->FPSNumerator;
VI.num_frames = VP->NumFrames;
}
// Set AR variables
Env->SetVar("FFSAR_NUM", VP->SARNum);
Env->SetVar("FFSAR_DEN", VP->SARDen);
if (VP->SARNum > 0 && VP->SARDen > 0)
Env->SetVar("FFSAR", VP->SARNum / (double)VP->SARDen);
// Set crop variables
Env->SetVar("FFCROP_LEFT", VP->CropLeft);
Env->SetVar("FFCROP_RIGHT", VP->CropRight);
Env->SetVar("FFCROP_TOP", VP->CropTop);
Env->SetVar("FFCROP_BOTTOM", VP->CropBottom);
}
AvisynthVideoSource::~AvisynthVideoSource() {
FFMS_DestroyVideoSource(V);
}
void AvisynthVideoSource::InitOutputFormat(IScriptEnvironment *Env) {
const TVideoProperties *VP = FFMS_GetVideoProperties(V);
if (FFMS_SetOutputFormat(V, (1 << FFMS_GetPixFmt("yuvj420p")) |
(1 << FFMS_GetPixFmt("yuv420p")) | (1 << FFMS_GetPixFmt("yuyv422")) |
(1 << FFMS_GetPixFmt("rgb32")) | (1 << FFMS_GetPixFmt("bgr24")),
VP->Width, VP->Height, NULL, 0))
Env->ThrowError("FFVideoSource: No suitable output format found");
VP = FFMS_GetVideoProperties(V);
if (VP->VPixelFormat == FFMS_GetPixFmt("yuvj420p") || VP->VPixelFormat == FFMS_GetPixFmt("yuv420p"))
VI.pixel_type = VideoInfo::CS_I420;
else if (VP->VPixelFormat == FFMS_GetPixFmt("yuyv422"))
VI.pixel_type = VideoInfo::CS_YUY2;
else if (VP->VPixelFormat == FFMS_GetPixFmt("rgb32"))
VI.pixel_type = VideoInfo::CS_BGR32;
else if (VP->VPixelFormat == FFMS_GetPixFmt("bgr24"))
VI.pixel_type = VideoInfo::CS_BGR24;
else
Env->ThrowError("FFVideoSource: No suitable output format found");
VI.image_type = VideoInfo::IT_TFF;
VI.width = VP->Width;
VI.height = VP->Height;
// Crop to obey avisynth's even width/height requirements
if (VI.pixel_type == VideoInfo::CS_I420) {
VI.height -= VI.height & 1;
VI.width -= VI.width & 1;
}
if (VI.pixel_type == VideoInfo::CS_YUY2) {
VI.width -= VI.width & 1;
}
}
PVideoFrame AvisynthVideoSource::OutputFrame(const TAVFrameLite *Frame, IScriptEnvironment *Env) {
TAVFrameLite *SrcPicture = const_cast<TAVFrameLite *>(Frame);
PVideoFrame Dst = Env->NewVideoFrame(VI);
if (VI.pixel_type == VideoInfo::CS_I420) {
Env->BitBlt(Dst->GetWritePtr(PLANAR_Y), Dst->GetPitch(PLANAR_Y), SrcPicture->Data[0], SrcPicture->Linesize[0], Dst->GetRowSize(PLANAR_Y), Dst->GetHeight(PLANAR_Y));
Env->BitBlt(Dst->GetWritePtr(PLANAR_U), Dst->GetPitch(PLANAR_U), SrcPicture->Data[1], SrcPicture->Linesize[1], Dst->GetRowSize(PLANAR_U), Dst->GetHeight(PLANAR_U));
Env->BitBlt(Dst->GetWritePtr(PLANAR_V), Dst->GetPitch(PLANAR_V), SrcPicture->Data[2], SrcPicture->Linesize[2], Dst->GetRowSize(PLANAR_V), Dst->GetHeight(PLANAR_V));
} else if (VI.IsRGB()) {
Env->BitBlt(Dst->GetWritePtr() + Dst->GetPitch() * (Dst->GetHeight() - 1), -Dst->GetPitch(), SrcPicture->Data[0], SrcPicture->Linesize[0], Dst->GetRowSize(), Dst->GetHeight());
} else { // YUY2
Env->BitBlt(Dst->GetWritePtr(), Dst->GetPitch(), SrcPicture->Data[0], SrcPicture->Linesize[0], Dst->GetRowSize(), Dst->GetHeight());
}
return Dst;
}
PVideoFrame AvisynthVideoSource::GetFrame(int n, IScriptEnvironment *Env) {
char ErrorMsg[1024];
unsigned MsgSize = sizeof(ErrorMsg);
const TAVFrameLite *Frame;
if (FPSNum > 0 && FPSDen > 0)
Frame = FFMS_GetFrameByTime(V, FFMS_GetVideoProperties(V)->FirstTime + (double)(n * (int64_t)FPSDen) / FPSNum, ErrorMsg, MsgSize);
else
Frame = FFMS_GetFrame(V, n, ErrorMsg, MsgSize);
if (Frame == NULL)
Env->ThrowError("FFVideoSource: %s", ErrorMsg);
Env->SetVar("FFPICT_TYPE", Frame->PictType);
return OutputFrame(Frame, Env);
}
AvisynthAudioSource::AvisynthAudioSource(const char *SourceFile, int Track, FFIndex *Index, IScriptEnvironment* Env, char *ErrorMsg, unsigned MsgSize) {
memset(&VI, 0, sizeof(VI));
A = FFMS_CreateAudioSource(SourceFile, Track, Index, ErrorMsg, MsgSize);
if (!A)
Env->ThrowError(ErrorMsg);
const TAudioProperties AP = *FFMS_GetAudioProperties(A);
VI.nchannels = AP.Channels;
VI.num_audio_samples = AP.NumSamples;
VI.audio_samples_per_second = AP.SampleRate;
if (AP.Float && AP.BitsPerSample == 32) {
VI.sample_type = SAMPLE_FLOAT;
} else {
switch (AP.BitsPerSample) {
case 8: VI.sample_type = SAMPLE_INT8; break;
case 16: VI.sample_type = SAMPLE_INT16; break;
case 24: VI.sample_type = SAMPLE_INT24; break;
case 32: VI.sample_type = SAMPLE_INT32; break;
default: Env->ThrowError("FFAudioSource: Bad audio format");
}
}
}
AvisynthAudioSource::~AvisynthAudioSource() {
FFMS_DestroyAudioSource(A);
}
void AvisynthAudioSource::GetAudio(void* Buf, __int64 Start, __int64 Count, IScriptEnvironment *Env) {
char ErrorMsg[1024];
unsigned MsgSize = sizeof(ErrorMsg);
if (FFMS_GetAudio(A, Buf, Start, Count, ErrorMsg, MsgSize))
Env->ThrowError(ErrorMsg);
}