forked from mia/Aegisub
480 lines
15 KiB
C++
480 lines
15 KiB
C++
// Copyright (c) 2007-2009 Fredrik Mellbin
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include <string.h>
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#include <errno.h>
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#include "utils.h"
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#include "indexing.h"
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#ifdef FFMS_USE_UTF8_PATHS
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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#endif
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// Export the array but not its data type... fun...
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typedef struct CodecTags{
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char str[20];
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enum CodecID id;
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} CodecTags;
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extern "C" {
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extern const AVCodecTag ff_codec_bmp_tags[];
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extern const CodecTags ff_mkv_codec_tags[];
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extern const AVCodecTag ff_codec_movvideo_tags[];
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extern const AVCodecTag ff_codec_wav_tags[];
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}
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extern int CPUFeatures;
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FFMS_Exception::FFMS_Exception(int ErrorType, int SubType, const char *Message) : _ErrorType(ErrorType), _SubType(SubType), _Message(Message) {
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}
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FFMS_Exception::FFMS_Exception(int ErrorType, int SubType, const std::string &Message) : _ErrorType(ErrorType), _SubType(SubType), _Message(Message) {
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}
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FFMS_Exception::~FFMS_Exception() throw () {
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}
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const std::string &FFMS_Exception::GetErrorMessage() const {
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return _Message;
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}
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int FFMS_Exception::CopyOut(FFMS_ErrorInfo *ErrorInfo) const {
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if (ErrorInfo) {
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ErrorInfo->ErrorType = _ErrorType;
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ErrorInfo->SubType = _SubType;
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if (ErrorInfo->BufferSize > 0) {
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memset(ErrorInfo->Buffer, 0, ErrorInfo->BufferSize);
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_Message.copy(ErrorInfo->Buffer, ErrorInfo->BufferSize - 1);
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}
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}
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return (_ErrorType << 16) | _SubType;
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}
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int GetSWSCPUFlags() {
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int Flags = 0;
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if (CPUFeatures & FFMS_CPU_CAPS_MMX)
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Flags |= SWS_CPU_CAPS_MMX;
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if (CPUFeatures & FFMS_CPU_CAPS_MMX2)
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Flags |= SWS_CPU_CAPS_MMX2;
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if (CPUFeatures & FFMS_CPU_CAPS_3DNOW)
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Flags |= SWS_CPU_CAPS_3DNOW;
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if (CPUFeatures & FFMS_CPU_CAPS_ALTIVEC)
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Flags |= SWS_CPU_CAPS_ALTIVEC;
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if (CPUFeatures & FFMS_CPU_CAPS_BFIN)
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Flags |= SWS_CPU_CAPS_BFIN;
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return Flags;
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}
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int GetPPCPUFlags() {
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int Flags = 0;
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if (CPUFeatures & FFMS_CPU_CAPS_MMX)
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Flags |= PP_CPU_CAPS_MMX;
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if (CPUFeatures & FFMS_CPU_CAPS_MMX2)
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Flags |= PP_CPU_CAPS_MMX2;
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if (CPUFeatures & FFMS_CPU_CAPS_3DNOW)
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Flags |= PP_CPU_CAPS_3DNOW;
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if (CPUFeatures & FFMS_CPU_CAPS_ALTIVEC)
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Flags |= PP_CPU_CAPS_ALTIVEC;
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return Flags;
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}
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void ClearErrorInfo(FFMS_ErrorInfo *ErrorInfo) {
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if (ErrorInfo) {
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ErrorInfo->ErrorType = FFMS_ERROR_SUCCESS;
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ErrorInfo->SubType = FFMS_ERROR_SUCCESS;
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if (ErrorInfo->BufferSize > 0)
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ErrorInfo->Buffer[0] = 0;
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}
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}
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FFMS_TrackType HaaliTrackTypeToFFTrackType(int TT) {
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switch (TT) {
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case TT_VIDEO: return FFMS_TYPE_VIDEO; break;
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case TT_AUDIO: return FFMS_TYPE_AUDIO; break;
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case TT_SUB: return FFMS_TYPE_SUBTITLE; break;
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default: return FFMS_TYPE_UNKNOWN;
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}
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}
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void ReadFrame(uint64_t FilePos, unsigned int &FrameSize, CompressedStream *CS, MatroskaReaderContext &Context) {
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if (CS) {
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unsigned int DecompressedFrameSize = 0;
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cs_NextFrame(CS, FilePos, FrameSize);
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for (;;) {
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int ReadBytes = cs_ReadData(CS, Context.CSBuffer, sizeof(Context.CSBuffer));
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if (ReadBytes < 0) {
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std::ostringstream buf;
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buf << "Error decompressing data: " << cs_GetLastError(CS);
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ, buf.str());
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}
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if (ReadBytes == 0) {
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FrameSize = DecompressedFrameSize;
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memset(Context.Buffer + DecompressedFrameSize, 0,
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Context.BufferSize + FF_INPUT_BUFFER_PADDING_SIZE - DecompressedFrameSize);
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return;
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}
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if (Context.BufferSize < DecompressedFrameSize + ReadBytes) {
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Context.BufferSize = DecompressedFrameSize + ReadBytes;
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Context.Buffer = (uint8_t *)realloc(Context.Buffer, Context.BufferSize + FF_INPUT_BUFFER_PADDING_SIZE);
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if (Context.Buffer == NULL)
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_ALLOCATION_FAILED,
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"Out of memory");
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}
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memcpy(Context.Buffer + DecompressedFrameSize, Context.CSBuffer, ReadBytes);
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DecompressedFrameSize += ReadBytes;
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}
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} else {
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if (fseeko(Context.ST.fp, FilePos, SEEK_SET)) {
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std::ostringstream buf;
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buf << "fseek(): " << strerror(errno);
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_SEEKING, buf.str());
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}
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if (Context.BufferSize < FrameSize) {
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Context.BufferSize = FrameSize;
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Context.Buffer = (uint8_t *)realloc(Context.Buffer, Context.BufferSize + 16);
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if (Context.Buffer == NULL)
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_ALLOCATION_FAILED,
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"Out of memory");
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}
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size_t ReadBytes = fread(Context.Buffer, 1, FrameSize, Context.ST.fp);
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if (ReadBytes != FrameSize) {
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if (ReadBytes == 0) {
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if (feof(Context.ST.fp)) {
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ,
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"Unexpected EOF while reading frame");
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} else {
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std::ostringstream buf;
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buf << "Error reading frame: " << strerror(errno);
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_SEEKING, buf.str());
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}
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} else {
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ,
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"Short read while reading frame");
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}
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ,
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"Unknown read error");
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}
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return;
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}
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}
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void InitNullPacket(AVPacket &pkt) {
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av_init_packet(&pkt);
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pkt.data = NULL;
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pkt.size = 0;
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}
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bool IsPackedFrame(AVPacket &pkt) {
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for (int i = 0; i < pkt.size - 5; i++)
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if (pkt.data[i] == 0x00 && pkt.data[i + 1] == 0x00 && pkt.data[i + 2] == 0x01 && pkt.data[i + 3] == 0xB6 && (pkt.data[i + 4] & 0x40))
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for (i = i + 5; i < pkt.size - 5; i++)
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if (pkt.data[i] == 0x00 && pkt.data[i + 1] == 0x00 && pkt.data[i + 2] == 0x01 && pkt.data[i + 3] == 0xB6 && (pkt.data[i + 4] & 0xC0) == 0x80)
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return true;
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return false;
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}
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bool IsNVOP(AVPacket &pkt) {
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static const uint8_t MPEG4NVOP[] = { 0x00, 0x00, 0x01, 0xB6 };
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return (pkt.size >= 4 && pkt.size <= 8) && !memcmp(pkt.data, MPEG4NVOP, 4);
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}
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void FillAP(FFMS_AudioProperties &AP, AVCodecContext *CTX, FFMS_Track &Frames) {
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AP.SampleFormat = static_cast<FFMS_SampleFormat>(CTX->sample_fmt);
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AP.BitsPerSample = av_get_bits_per_sample_format(CTX->sample_fmt);
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if (CTX->sample_fmt == SAMPLE_FMT_S32 && CTX->bits_per_raw_sample)
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AP.BitsPerSample = CTX->bits_per_raw_sample;
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AP.Channels = CTX->channels;;
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AP.ChannelLayout = CTX->channel_layout;
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AP.SampleRate = CTX->sample_rate;
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AP.NumSamples = (Frames.back()).SampleStart + (Frames.back()).SampleCount;
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AP.FirstTime = ((Frames.front().PTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
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AP.LastTime = ((Frames.back().PTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
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}
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#ifdef HAALISOURCE
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unsigned vtSize(VARIANT &vt) {
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if (V_VT(&vt) != (VT_ARRAY | VT_UI1))
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return 0;
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long lb,ub;
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if (FAILED(SafeArrayGetLBound(V_ARRAY(&vt),1,&lb)) ||
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FAILED(SafeArrayGetUBound(V_ARRAY(&vt),1,&ub)))
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return 0;
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return ub - lb + 1;
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}
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void vtCopy(VARIANT& vt,void *dest) {
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unsigned sz = vtSize(vt);
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if (sz > 0) {
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void *vp;
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if (SUCCEEDED(SafeArrayAccessData(V_ARRAY(&vt),&vp))) {
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memcpy(dest,vp,sz);
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SafeArrayUnaccessData(V_ARRAY(&vt));
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}
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}
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}
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#endif
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CodecID MatroskaToFFCodecID(char *Codec, void *CodecPrivate, unsigned int FourCC, unsigned int BitsPerSample) {
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/* Look up native codecs */
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for(int i = 0; ff_mkv_codec_tags[i].id != CODEC_ID_NONE; i++){
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if(!strncmp(ff_mkv_codec_tags[i].str, Codec,
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strlen(ff_mkv_codec_tags[i].str))) {
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// Uncompressed and exotic format fixup
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// This list is incomplete
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CodecID CID = ff_mkv_codec_tags[i].id;
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switch (CID) {
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case CODEC_ID_PCM_S16LE:
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switch (BitsPerSample) {
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case 8: CID = CODEC_ID_PCM_S8; break;
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case 16: CID = CODEC_ID_PCM_S16LE; break;
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case 24: CID = CODEC_ID_PCM_S24LE; break;
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case 32: CID = CODEC_ID_PCM_S32LE; break;
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}
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break;
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case CODEC_ID_PCM_S16BE:
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switch (BitsPerSample) {
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case 8: CID = CODEC_ID_PCM_S8; break;
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case 16: CID = CODEC_ID_PCM_S16BE; break;
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case 24: CID = CODEC_ID_PCM_S24BE; break;
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case 32: CID = CODEC_ID_PCM_S32BE; break;
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}
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break;
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}
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return CID;
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}
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}
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/* Video codecs for "avi in mkv" mode */
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const AVCodecTag *const tags[] = { ff_codec_bmp_tags, 0 };
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if (!strcmp(Codec, "V_MS/VFW/FOURCC")) {
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FFMS_BITMAPINFOHEADER *b = reinterpret_cast<FFMS_BITMAPINFOHEADER *>(CodecPrivate);
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return av_codec_get_id(tags, b->biCompression);
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}
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if (!strcmp(Codec, "V_FOURCC")) {
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return av_codec_get_id(tags, FourCC);
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}
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// FIXME
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/* Audio codecs for "acm in mkv" mode */
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//#include "Mmreg.h"
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//((WAVEFORMATEX *)TI->CodecPrivate)->wFormatTag
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/* Fixup for uncompressed video formats */
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/* Fixup for uncompressed audio formats */
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return CODEC_ID_NONE;
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}
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void InitializeCodecContextFromMatroskaTrackInfo(TrackInfo *TI, AVCodecContext *CodecContext) {
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CodecContext->extradata = static_cast<uint8_t *>(TI->CodecPrivate);
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CodecContext->extradata_size = TI->CodecPrivateSize;
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if (TI->Type == TT_VIDEO) {
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CodecContext->coded_width = TI->AV.Video.PixelWidth;
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CodecContext->coded_height = TI->AV.Video.PixelHeight;
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} else if (TI->Type == TT_AUDIO) {
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CodecContext->sample_rate = mkv_TruncFloat(TI->AV.Audio.SamplingFreq);
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CodecContext->bits_per_coded_sample = TI->AV.Audio.BitDepth;
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CodecContext->channels = TI->AV.Audio.Channels;
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}
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}
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#ifdef HAALISOURCE
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void InitializeCodecContextFromHaaliInfo(CComQIPtr<IPropertyBag> pBag, AVCodecContext *CodecContext) {
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if (pBag) {
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CComVariant pV;
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Type", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4))) {
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unsigned int TT = pV.uintVal;
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if (TT == TT_VIDEO) {
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Video.PixelWidth", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
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CodecContext->coded_width = pV.uintVal;
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Video.PixelHeight", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
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CodecContext->coded_height = pV.uintVal;
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} else if (TT == TT_AUDIO) {
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Audio.SamplingFreq", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
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CodecContext->sample_rate = pV.uintVal;
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Audio.BitDepth", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
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CodecContext->bits_per_coded_sample = pV.uintVal;
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pV.Clear();
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if (SUCCEEDED(pBag->Read(L"Audio.Channels", &pV, NULL)) && SUCCEEDED(pV.ChangeType(VT_UI4)))
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CodecContext->channels = pV.uintVal;
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}
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}
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}
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}
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#endif
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FILE *ffms_fopen(const char *filename, const char *mode) {
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#ifdef FFMS_USE_UTF8_PATHS
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// Hack: support utf8-in-char* filenames on windows
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wchar_t filename_wide[MAX_PATH*2];
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// 64 characters of mode string ought to be more than enough for everyone
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wchar_t mode_wide[64];
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if ((MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename, -1, filename_wide, MAX_PATH) > 0)
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&& (MultiByteToWideChar(CP_ACP, NULL, mode, -1, mode_wide, 60) > 0))
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return _wfopen(filename_wide, mode_wide);
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else
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return fopen(filename, mode);
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#else
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return fopen(filename, mode);
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#endif
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}
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size_t ffms_mbstowcs (wchar_t *wcstr, const char *mbstr, size_t max) {
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#ifdef FFMS_USE_UTF8_PATHS
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// try utf8 first
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int len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, mbstr, -1, NULL, 0);
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if (len > 0) {
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MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, mbstr, -1, wcstr, max);
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return static_cast<size_t>(len);
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}
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// failed, use local ANSI codepage
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else {
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len = MultiByteToWideChar(CP_ACP, NULL, mbstr, -1, wcstr, max);
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return static_cast<size_t>(len);
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}
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#else
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return mbstowcs(wcstr, mbstr, max);
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#endif
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}
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// ffms_fstream stuff
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void ffms_fstream::open(const char *filename, std::ios_base::openmode mode) {
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#ifdef FFMS_USE_UTF8_PATHS
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// Hack: support utf8-in-char* filenames on windows
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wchar_t filename_wide[MAX_PATH*2];
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if (MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename, -1, filename_wide, MAX_PATH) > 0)
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std::fstream::open(filename_wide, mode);
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else
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std::fstream::open(filename, mode);
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#else
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std::fstream::open(filename, mode);
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#endif
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}
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ffms_fstream::ffms_fstream(const char *filename, std::ios_base::openmode mode) {
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open(filename, mode);
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}
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#ifdef HAALISOURCE
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CComPtr<IMMContainer> HaaliOpenFile(const char *SourceFile, enum FFMS_Sources SourceMode) {
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CComPtr<IMMContainer> pMMC;
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CLSID clsid = HAALI_MPEG_PARSER;
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if (SourceMode == FFMS_SOURCE_HAALIOGG)
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clsid = HAALI_OGG_PARSER;
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if (FAILED(pMMC.CoCreateInstance(clsid)))
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_ALLOCATION_FAILED,
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"Can't create parser");
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CComPtr<IMemAlloc> pMA;
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if (FAILED(pMA.CoCreateInstance(CLSID_MemAlloc)))
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_ALLOCATION_FAILED,
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"Can't create memory allocator");
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CComPtr<IMMStream> pMS;
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if (FAILED(pMS.CoCreateInstance(CLSID_DiskFile)))
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_ALLOCATION_FAILED,
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"Can't create disk file reader");
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WCHAR WSourceFile[2048];
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ffms_mbstowcs(WSourceFile, SourceFile, 2000);
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CComQIPtr<IMMStreamOpen> pMSO(pMS);
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if (FAILED(pMSO->Open(WSourceFile)))
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throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ,
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"Can't open file");
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if (FAILED(pMMC->Open(pMS, 0, NULL, pMA))) {
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|
if (SourceMode == FFMS_SOURCE_HAALIMPEG)
|
|
throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_INVALID_ARGUMENT,
|
|
"Can't parse file, most likely a transport stream not cut at packet boundaries");
|
|
else
|
|
throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_INVALID_ARGUMENT,
|
|
"Can't parse file");
|
|
}
|
|
|
|
return pMMC;
|
|
}
|
|
|
|
#endif
|
|
|
|
void LAVFOpenFile(const char *SourceFile, AVFormatContext *&FormatContext) {
|
|
if (av_open_input_file(&FormatContext, SourceFile, NULL, 0, NULL) != 0) {
|
|
std::ostringstream buf;
|
|
buf << "Couldn't open '" << SourceFile << "'";
|
|
throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ, buf.str());
|
|
}
|
|
|
|
if (av_find_stream_info(FormatContext) < 0) {
|
|
av_close_input_file(FormatContext);
|
|
FormatContext = NULL;
|
|
throw FFMS_Exception(FFMS_ERROR_PARSER, FFMS_ERROR_FILE_READ,
|
|
"Couldn't find stream information");
|
|
}
|
|
}
|