void VSVideoSource::InitOutputFormat(int ResizeToWidth, int ResizeToHeight,
const char *ResizerName, int ConvertToFormat, const VSAPI *vsapi, VSCore *core) {
char ErrorMsg[1024];
FFMS_ErrorInfo E;
E.Buffer = ErrorMsg;
E.BufferSize = sizeof(ErrorMsg);
const FFMS_Frame *F = FFMS_GetFrame(V, 0, &E);
if (!F) {
std::string buf = "Source: ";
buf += E.Buffer;
throw std::runtime_error(buf);
}
std::vector<int> TargetFormats;
int npixfmt = GetNumPixFmts();
for (int i = 0; i < npixfmt; i++)
if (IsRealNativeEndianPlanar(*av_pix_fmt_desc_get((AVPixelFormat)i)))
TargetFormats.push_back(i);
TargetFormats.push_back(PIX_FMT_NONE);
int TargetPixelFormat = PIX_FMT_NONE;
if (ConvertToFormat != pfNone) {
TargetPixelFormat = FormatConversionToPixelFormat(ConvertToFormat, OutputAlpha, core, vsapi);
if (TargetPixelFormat == PIX_FMT_NONE)
throw std::runtime_error(std::string("Source: Invalid output colorspace specified"));
TargetFormats.clear();
TargetFormats.push_back(TargetPixelFormat);
TargetFormats.push_back(-1);
}
if (ResizeToWidth <= 0)
ResizeToWidth = F->EncodedWidth;
if (ResizeToHeight <= 0)
ResizeToHeight = F->EncodedHeight;
int Resizer = ResizerNameToSWSResizer(ResizerName);
if (Resizer == 0)
throw std::runtime_error(std::string("Source: Invalid resizer name specified"));
if (FFMS_SetOutputFormatV2(V, &TargetFormats[0],
ResizeToWidth, ResizeToHeight, Resizer, &E))
throw std::runtime_error(std::string("Source: No suitable output format found"));
F = FFMS_GetFrame(V, 0, &E);
TargetFormats.clear();
TargetFormats.push_back(F->ConvertedPixelFormat);
TargetFormats.push_back(-1);
// This trick is required to first get the "best" default format and then set only that format as the output
if (FFMS_SetOutputFormatV2(V, TargetFormats.data(), ResizeToWidth, ResizeToHeight, Resizer, &E))
throw std::runtime_error(std::string("Source: No suitable output format found"));
F = FFMS_GetFrame(V, 0, &E);
// Don't output alpha if the clip doesn't have it
if (!HasAlpha(*av_pix_fmt_desc_get((AVPixelFormat)F->ConvertedPixelFormat)))
OutputAlpha = false;
VI[0].format = FormatConversionToVS(F->ConvertedPixelFormat, core, vsapi);
if (!VI[0].format)
throw std::runtime_error(std::string("Source: No suitable output format found"));
VI[0].width = F->ScaledWidth;
VI[0].height = F->ScaledHeight;
// fixme? Crop to obey sane even width/height requirements
}
void AvisynthVideoSource::InitOutputFormat(
int ResizeToWidth, int ResizeToHeight, const char *ResizerName,
const char *ConvertToFormatName, IScriptEnvironment *Env) {
ErrorInfo E;
const FFMS_VideoProperties *VP = FFMS_GetVideoProperties(V);
const FFMS_Frame *F = FFMS_GetFrame(V, 0, &E);
if (!F)
Env->ThrowError("FFVideoSource: %s", E.Buffer);
std::vector<int> TargetFormats;
if (HighBitDepth) {
TargetFormats.push_back(FFMS_GetPixFmt("yuv420p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva420p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv422p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva422p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv444p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva444p16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv420p10"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva420p10"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv422p10"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva422p10"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv444p10"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva444p10"));
TargetFormats.push_back(FFMS_GetPixFmt("gbrp16"));
TargetFormats.push_back(FFMS_GetPixFmt("gbrap16"));
TargetFormats.push_back(FFMS_GetPixFmt("gray16"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva420p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva422p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuva444p"));
}
TargetFormats.push_back(FFMS_GetPixFmt("yuv410p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv411p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv420p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv422p"));
TargetFormats.push_back(FFMS_GetPixFmt("yuv444p"));
TargetFormats.push_back(FFMS_GetPixFmt("gray8"));
TargetFormats.push_back(FFMS_GetPixFmt("yuyv422"));
TargetFormats.push_back(FFMS_GetPixFmt("bgra"));
// Remove unsupported formats from list so they don't appear as an early termination
TargetFormats.erase(std::remove(TargetFormats.begin(), TargetFormats.end(), -1), TargetFormats.end());
TargetFormats.push_back(-1);
// PIX_FMT_NV21 is misused as a return value different to the defined ones in the function
AVPixelFormat TargetPixelFormat = CSNameToPIXFMT(ConvertToFormatName, FFMS_PIX_FMT(NV21), HighBitDepth);
if (TargetPixelFormat == FFMS_PIX_FMT(NONE))
Env->ThrowError("FFVideoSource: Invalid colorspace name specified");
if (TargetPixelFormat != FFMS_PIX_FMT(NV21)) {
TargetFormats.clear();
TargetFormats.push_back(TargetPixelFormat);
TargetFormats.push_back(-1);
}
if (ResizeToWidth <= 0)
ResizeToWidth = F->EncodedWidth;
if (ResizeToHeight <= 0)
ResizeToHeight = F->EncodedHeight;
int Resizer = ResizerNameToSWSResizer(ResizerName);
if (Resizer == 0)
Env->ThrowError("FFVideoSource: Invalid resizer name specified");
if (FFMS_SetOutputFormatV2(V, TargetFormats.data(),
ResizeToWidth, ResizeToHeight, Resizer, &E))
Env->ThrowError("FFVideoSource: No suitable output format found");
F = FFMS_GetFrame(V, 0, &E);
TargetFormats.clear();
TargetFormats.push_back(F->ConvertedPixelFormat);
TargetFormats.push_back(-1);
// This trick is required to first get the "best" default format and then set only that format as the output
if (FFMS_SetOutputFormatV2(V, TargetFormats.data(),
ResizeToWidth, ResizeToHeight, Resizer, &E))
Env->ThrowError("FFVideoSource: No suitable output format found");
F = FFMS_GetFrame(V, 0, &E);
if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuvj420p") || F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv420p"))
VI.pixel_type = VideoInfo::CS_I420;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva420p"))
VI.pixel_type = VideoInfo::CS_YUVA420;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuvj422p") || F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv422p"))
VI.pixel_type = VideoInfo::CS_YV16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva422p"))
VI.pixel_type = VideoInfo::CS_YUVA422;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuvj444p") || F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv444p"))
VI.pixel_type = VideoInfo::CS_YV24;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva444p"))
VI.pixel_type = VideoInfo::CS_YUVA444;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv411p"))
VI.pixel_type = VideoInfo::CS_YV411;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv410p"))
VI.pixel_type = VideoInfo::CS_YUV9;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("gray8"))
VI.pixel_type = VideoInfo::CS_Y8;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuyv422"))
VI.pixel_type = VideoInfo::CS_YUY2;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("rgb32"))
VI.pixel_type = VideoInfo::CS_BGR32;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("bgr24"))
VI.pixel_type = VideoInfo::CS_BGR24;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv420p16"))
VI.pixel_type = VideoInfo::CS_YUV420P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva420p16"))
VI.pixel_type = VideoInfo::CS_YUVA420P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv422p16"))
VI.pixel_type = VideoInfo::CS_YUV422P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva422p16"))
VI.pixel_type = VideoInfo::CS_YUVA422P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv444p16"))
VI.pixel_type = VideoInfo::CS_YUV444P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva444p16"))
VI.pixel_type = VideoInfo::CS_YUVA444P16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv420p10"))
VI.pixel_type = VideoInfo::CS_YUV420P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva420p10"))
VI.pixel_type = VideoInfo::CS_YUVA420P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv422p10"))
VI.pixel_type = VideoInfo::CS_YUV422P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva422p10"))
VI.pixel_type = VideoInfo::CS_YUVA422P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv444p10"))
VI.pixel_type = VideoInfo::CS_YUV444P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuva444p10"))
VI.pixel_type = VideoInfo::CS_YUVA444P10;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("gbrp16"))
VI.pixel_type = VideoInfo::CS_RGBP16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("gbrap16"))
VI.pixel_type = VideoInfo::CS_RGBAP16;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("gray16"))
VI.pixel_type = VideoInfo::CS_Y16;
else
Env->ThrowError("FFVideoSource: No suitable output format found");
if (RFFMode > 0 && ResizeToHeight != F->EncodedHeight)
Env->ThrowError("FFVideoSource: Vertical scaling not allowed in RFF mode");
if (RFFMode > 0 && TargetPixelFormat != FFMS_PIX_FMT(NV21))
Env->ThrowError("FFVideoSource: Only the default output colorspace can be used in RFF mode");
// set color information variables
Env->SetVar(Env->Sprintf("%s%s", this->VarPrefix, "FFCOLOR_SPACE"), F->ColorSpace);
Env->SetVar(Env->Sprintf("%s%s", this->VarPrefix, "FFCOLOR_RANGE"), F->ColorRange);
if (VP->TopFieldFirst)
VI.image_type = VideoInfo::IT_TFF;
else
VI.image_type = VideoInfo::IT_BFF;
VI.width = F->ScaledWidth;
VI.height = F->ScaledHeight;
// Crop to obey subsampling width/height requirements
VI.width -= VI.width % (1 << GetSubSamplingW(VI));
VI.height -= VI.height % (1 << (GetSubSamplingH(VI) + (RFFMode > 0 ? 1 : 0)));
}
/// @brief Opens video
/// @param filename The filename to open
void FFmpegSourceVideoProvider::LoadVideo(wxString filename) {
wxString FileNameShort = wxFileName(filename).GetShortPath();
FFMS_Indexer *Indexer = FFMS_CreateIndexer(FileNameShort.utf8_str(), &ErrInfo);
if (!Indexer)
throw agi::FileNotFoundError(ErrInfo.Buffer);
std::map<int,wxString> TrackList = GetTracksOfType(Indexer, FFMS_TYPE_VIDEO);
if (TrackList.size() <= 0)
throw VideoNotSupported("no video tracks found");
// initialize the track number to an invalid value so we can detect later on
// whether the user actually had to choose a track or not
int TrackNumber = -1;
if (TrackList.size() > 1) {
TrackNumber = AskForTrackSelection(TrackList, FFMS_TYPE_VIDEO);
// if it's still -1 here, user pressed cancel
if (TrackNumber == -1)
throw agi::UserCancelException("video loading cancelled by user");
}
// generate a name for the cache file
wxString CacheName = GetCacheFilename(filename);
// try to read index
agi::scoped_holder<FFMS_Index*, void (FFMS_CC*)(FFMS_Index*)>
Index(FFMS_ReadIndex(CacheName.utf8_str(), &ErrInfo), FFMS_DestroyIndex);
if (Index && FFMS_IndexBelongsToFile(Index, FileNameShort.utf8_str(), &ErrInfo))
Index = NULL;
// time to examine the index and check if the track we want is indexed
// technically this isn't really needed since all video tracks should always be indexed,
// but a bit of sanity checking never hurt anyone
if (Index && TrackNumber >= 0) {
FFMS_Track *TempTrackData = FFMS_GetTrackFromIndex(Index, TrackNumber);
if (FFMS_GetNumFrames(TempTrackData) <= 0)
Index = NULL;
}
// moment of truth
if (!Index) {
int TrackMask = FFMS_TRACKMASK_NONE;
if (OPT_GET("Provider/FFmpegSource/Index All Tracks")->GetBool() || OPT_GET("Video/Open Audio")->GetBool())
TrackMask = FFMS_TRACKMASK_ALL;
Index = DoIndexing(Indexer, CacheName, TrackMask, GetErrorHandlingMode());
}
else {
FFMS_CancelIndexing(Indexer);
}
// update access time of index file so it won't get cleaned away
wxFileName(CacheName).Touch();
// we have now read the index and may proceed with cleaning the index cache
CleanCache();
// track number still not set?
if (TrackNumber < 0) {
// just grab the first track
TrackNumber = FFMS_GetFirstIndexedTrackOfType(Index, FFMS_TYPE_VIDEO, &ErrInfo);
if (TrackNumber < 0)
throw VideoNotSupported(std::string("Couldn't find any video tracks: ") + ErrInfo.Buffer);
}
// set thread count
int Threads = OPT_GET("Provider/Video/FFmpegSource/Decoding Threads")->GetInt();
if (FFMS_GetVersion() < ((2 << 24) | (17 << 16) | (2 << 8) | 1) && FFMS_GetSourceType(Index) == FFMS_SOURCE_LAVF)
Threads = 1;
// set seekmode
// TODO: give this its own option?
int SeekMode;
if (OPT_GET("Provider/Video/FFmpegSource/Unsafe Seeking")->GetBool())
SeekMode = FFMS_SEEK_UNSAFE;
else
SeekMode = FFMS_SEEK_NORMAL;
VideoSource = FFMS_CreateVideoSource(FileNameShort.utf8_str(), TrackNumber, Index, Threads, SeekMode, &ErrInfo);
if (!VideoSource)
throw VideoOpenError(std::string("Failed to open video track: ") + ErrInfo.Buffer);
// load video properties
VideoInfo = FFMS_GetVideoProperties(VideoSource);
const FFMS_Frame *TempFrame = FFMS_GetFrame(VideoSource, 0, &ErrInfo);
if (!TempFrame)
throw VideoOpenError(std::string("Failed to decode first frame: ") + ErrInfo.Buffer);
Width = TempFrame->EncodedWidth;
Height = TempFrame->EncodedHeight;
if (VideoInfo->SARDen > 0 && VideoInfo->SARNum > 0)
DAR = double(Width) * VideoInfo->SARNum / ((double)Height * VideoInfo->SARDen);
else
DAR = double(Width) / Height;
// Assuming TV for unspecified
wxString ColorRange = TempFrame->ColorRange == FFMS_CR_JPEG ? "PC" : "TV";
int CS = TempFrame->ColorSpace;
#if FFMS_VERSION >= ((2 << 24) | (17 << 16) | (1 << 8) | 0)
if (CS != FFMS_CS_RGB && CS != FFMS_CS_BT470BG && OPT_GET("Video/Force BT.601")->GetBool()) {
if (FFMS_SetInputFormatV(VideoSource, FFMS_CS_BT470BG, TempFrame->ColorRange, FFMS_GetPixFmt(""), &ErrInfo))
throw VideoOpenError(std::string("Failed to set input format: ") + ErrInfo.Buffer);
CS = FFMS_CS_BT470BG;
}
#endif
switch (CS) {
case FFMS_CS_RGB:
ColorSpace = "None";
break;
case FFMS_CS_BT709:
ColorSpace = wxString::Format("%s.709", ColorRange);
break;
case FFMS_CS_UNSPECIFIED:
ColorSpace = wxString::Format("%s.%s", ColorRange, Width > 1024 || Height >= 600 ? "709" : "601");
break;
case FFMS_CS_FCC:
ColorSpace = wxString::Format("%s.FCC", ColorRange);
break;
case FFMS_CS_BT470BG:
case FFMS_CS_SMPTE170M:
ColorSpace = wxString::Format("%s.601", ColorRange);
break;
case FFMS_CS_SMPTE240M:
ColorSpace = wxString::Format("%s.240M", ColorRange);
break;
default:
throw VideoOpenError("Unknown video color space");
break;
}
const int TargetFormat[] = { FFMS_GetPixFmt("bgra"), -1 };
if (FFMS_SetOutputFormatV2(VideoSource, TargetFormat, Width, Height, FFMS_RESIZER_BICUBIC, &ErrInfo)) {
throw VideoOpenError(std::string("Failed to set output format: ") + ErrInfo.Buffer);
}
// get frame info data
FFMS_Track *FrameData = FFMS_GetTrackFromVideo(VideoSource);
if (FrameData == NULL)
throw VideoOpenError("failed to get frame data");
const FFMS_TrackTimeBase *TimeBase = FFMS_GetTimeBase(FrameData);
if (TimeBase == NULL)
throw VideoOpenError("failed to get track time base");
const FFMS_FrameInfo *CurFrameData;
// build list of keyframes and timecodes
std::vector<int> TimecodesVector;
for (int CurFrameNum = 0; CurFrameNum < VideoInfo->NumFrames; CurFrameNum++) {
CurFrameData = FFMS_GetFrameInfo(FrameData, CurFrameNum);
if (CurFrameData == NULL) {
throw VideoOpenError(STD_STR(wxString::Format("Couldn't get info about frame %d", CurFrameNum)));
}
// keyframe?
if (CurFrameData->KeyFrame)
KeyFramesList.push_back(CurFrameNum);
// calculate timestamp and add to timecodes vector
int Timestamp = (int)((CurFrameData->PTS * TimeBase->Num) / TimeBase->Den);
TimecodesVector.push_back(Timestamp);
}
if (TimecodesVector.size() < 2)
Timecodes = 25.0;
else
Timecodes = agi::vfr::Framerate(TimecodesVector);
FrameNumber = 0;
}
void AvisynthVideoSource::InitOutputFormat(
int ResizeToWidth, int ResizeToHeight, const char *ResizerName,
const char *ConvertToFormatName, IScriptEnvironment *Env) {
char ErrorMsg[1024];
FFMS_ErrorInfo E;
E.Buffer = ErrorMsg;
E.BufferSize = sizeof(ErrorMsg);
const FFMS_VideoProperties *VP = FFMS_GetVideoProperties(V);
const FFMS_Frame *F = FFMS_GetFrame(V, 0, &E);
if (!F)
Env->ThrowError("FFVideoSource: %s", E.Buffer);
int TargetFormats[4];
TargetFormats[0] = FFMS_GetPixFmt("yuv420p");
TargetFormats[1] = FFMS_GetPixFmt("yuyv422");
TargetFormats[2] = FFMS_GetPixFmt("bgra");
TargetFormats[3] = -1;
// PIX_FMT_NV21 is misused as a return value different to the defined ones in the function
PixelFormat TargetPixelFormat = CSNameToPIXFMT(ConvertToFormatName, PIX_FMT_NV21);
if (TargetPixelFormat == PIX_FMT_NONE)
Env->ThrowError("FFVideoSource: Invalid colorspace name specified");
if (TargetPixelFormat != PIX_FMT_NV21) {
TargetFormats[0] = TargetPixelFormat;
TargetFormats[1] = -1;
}
if (ResizeToWidth <= 0)
ResizeToWidth = F->EncodedWidth;
if (ResizeToHeight <= 0)
ResizeToHeight = F->EncodedHeight;
int Resizer = ResizerNameToSWSResizer(ResizerName);
if (Resizer == 0)
Env->ThrowError("FFVideoSource: Invalid resizer name specified");
if (FFMS_SetOutputFormatV2(V, TargetFormats,
ResizeToWidth, ResizeToHeight, Resizer, &E))
Env->ThrowError("FFVideoSource: No suitable output format found");
F = FFMS_GetFrame(V, 0, &E);
TargetFormats[0] = F->ConvertedPixelFormat;
TargetFormats[1] = -1;
// This trick is required to first get the "best" default format and then set only that format as the output
if (FFMS_SetOutputFormatV2(V, TargetFormats,
ResizeToWidth, ResizeToHeight, Resizer, &E))
Env->ThrowError("FFVideoSource: No suitable output format found");
F = FFMS_GetFrame(V, 0, &E);
if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuvj420p") || F->ConvertedPixelFormat == FFMS_GetPixFmt("yuv420p"))
VI.pixel_type = VideoInfo::CS_I420;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("yuyv422"))
VI.pixel_type = VideoInfo::CS_YUY2;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("rgb32"))
VI.pixel_type = VideoInfo::CS_BGR32;
else if (F->ConvertedPixelFormat == FFMS_GetPixFmt("bgr24"))
VI.pixel_type = VideoInfo::CS_BGR24;
else
Env->ThrowError("FFVideoSource: No suitable output format found");
if (RFFMode > 0 && ResizeToHeight != F->EncodedHeight)
Env->ThrowError("FFVideoSource: Vertical scaling not allowed in RFF mode");
if (RFFMode > 0 && TargetPixelFormat != PIX_FMT_NV21)
Env->ThrowError("FFVideoSource: Only the default output colorspace can be used in RFF mode");
// set color information variables
Env->SetVar(Env->Sprintf("%s%s", this->VarPrefix, "FFCOLOR_SPACE"), F->ColorSpace);
Env->SetVar(Env->Sprintf("%s%s", this->VarPrefix, "FFCOLOR_RANGE"), F->ColorRange);
if (VP->TopFieldFirst)
VI.image_type = VideoInfo::IT_TFF;
else
VI.image_type = VideoInfo::IT_BFF;
VI.width = F->ScaledWidth;
VI.height = F->ScaledHeight;
// 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;
}
if (RFFMode > 0) {
VI.height -= VI.height & 1;
}
}
// Constructor and destructor
c_media_file_ffms::c_media_file_ffms(boost::filesystem::path path) :
// Path
m_path(path),
// File
m_source(nullptr),
// Info
m_frames(0), m_rate(0), m_aspect(1), m_width(0), m_height(0)
{
// Debug
//std::cout << boost::format("FFMS: Opening file! path = %1%") % path << std::endl;
// FFMS error
m_fferr.Buffer = m_ffmsg.data();
m_fferr.BufferSize = m_ffmsg.size();
m_fferr.ErrorType = FFMS_ERROR_SUCCESS;
m_fferr.SubType = FFMS_ERROR_SUCCESS;
// Library
FFMS_Init(0, 1);
// Index
FFMS_Index* index = nullptr;
// Cached index
auto path_index = m_path;
path_index.replace_extension(".ffindex");
if (boost::filesystem::is_regular_file(path_index)) {
// Read index
index = FFMS_ReadIndex(path_index.c_str(), &m_fferr);
if (index) {
// Check validity
int result = FFMS_IndexBelongsToFile(index, m_path.c_str(), &m_fferr);
if (result) {
// Invalid index
FFMS_DestroyIndex(index);
index = nullptr;
// Delete index file too
boost::filesystem::remove(path_index);
}
}
}
// Create index
if (!index) {
// Indexer
FFMS_Indexer* indexer = FFMS_CreateIndexer(m_path.c_str(), &m_fferr);
if (!indexer)
throw c_exception("FFMS: Could not create indexer!", { throw_format("path", m_path) });
//index = FFMS_DoIndexing2(indexer, FFMS_IEH_ABORT, &m_fferr);
index = FFMS_DoIndexing(indexer, 0, 0, nullptr, nullptr, FFMS_IEH_ABORT, nullptr, nullptr, &m_fferr);
if (!index)
throw c_exception("FFMS: Failed to index media!", { throw_format("path", m_path) });
// Write index to file
FFMS_WriteIndex(path_index.c_str(), index, &m_fferr);
}
// Track
int track_id = FFMS_GetFirstTrackOfType(index, FFMS_TYPE_VIDEO, &m_fferr);
if (track_id < 0) {
FFMS_DestroyIndex(index);
throw c_exception("FFMS: Failed to find any video tracks!", { throw_format("path", m_path) });
}
// Source
m_source = FFMS_CreateVideoSource(m_path.c_str(), track_id, index, 1, FFMS_SEEK_NORMAL, &m_fferr);
if (!m_source) {
FFMS_DestroyIndex(index);
throw c_exception("FFMS: Failed to create video source!", { throw_format("path", m_path) });
}
// Destroy index
FFMS_DestroyIndex(index);
index = nullptr;
// Video properties
const FFMS_VideoProperties* props = FFMS_GetVideoProperties(m_source);
m_frames = props->NumFrames;
if (props->FirstTime < props->LastTime && props->LastTime > 0.0)
m_rate = (props->LastTime - props->FirstTime) / static_cast<double>(m_frames);
else if (props->FPSNumerator != 0)
m_rate = static_cast<double>(props->FPSNumerator) / static_cast<double>(props->FPSDenominator);
if (props->SARNum != 0)
m_aspect = static_cast<double>(props->SARNum) / static_cast<double>(props->SARDen);
// First frame
const FFMS_Frame* frame = FFMS_GetFrame(m_source, 0, &m_fferr);
if (!frame)
throw c_exception("FFMS: Failed to get first video frame!", { throw_format("path", m_path) });
if (frame->ScaledWidth > 0)
m_width = frame->ScaledWidth;
else
m_width = frame->EncodedWidth;
if (frame->ScaledHeight > 0)
m_height = frame->ScaledHeight;
else
m_height = frame->EncodedHeight;
// Conversion
int pixfmts[2];
pixfmts[0] = FFMS_GetPixFmt("rgb24");
pixfmts[1] = -1;
if (FFMS_SetOutputFormatV2(m_source, pixfmts, frame->EncodedWidth, frame->EncodedHeight, FFMS_RESIZER_POINT, &m_fferr))
throw c_exception("FFMS: Failed to set output format!", { throw_format("path", m_path) });
// Info
std::cout << boost::format("FFMS: width = %d, height = %d, frames = %d, rate = %.3f, aspect = %.3f") %
m_width % m_height % m_frames % m_rate % m_aspect << std::endl;
}
