diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libdv_wrapper.cc | 101 | ||||
| -rw-r--r-- | lib/libdv_wrapper.h | 107 |
2 files changed, 208 insertions, 0 deletions
diff --git a/lib/libdv_wrapper.cc b/lib/libdv_wrapper.cc new file mode 100644 index 0000000..d570e2c --- /dev/null +++ b/lib/libdv_wrapper.cc @@ -0,0 +1,101 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * libdv_wrapper.cc + * + * Mon Apr 10 11:20:18 CEST 2006 + * Copyright 2006 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of MIaV. + * + * MIaV is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MIaV is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with MIaV; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "libdv_wrapper.h" + +static bool first = true; + +LibDVWrapper::LibDVWrapper(DV::Quality quality, + DV::System system, + DV::Sampling sampling) +{ + decoder = dv_decoder_new(FALSE, // int ignored + FALSE, // int clamp_luma + FALSE);// int clamp_chroma + setQuality(quality); + setSystem(system); + setSampling(sampling); + + width = 720; + height = 576; +} + + +LibDVWrapper::~LibDVWrapper() +{ + dv_decoder_free(decoder); +} + +void LibDVWrapper::setQuality(DV::Quality quality) +{ + dv_set_quality(decoder, quality); +} + +void LibDVWrapper::setSystem(DV::System system) +{ + decoder->system = (dv_system_t)system; +} + +void LibDVWrapper::setSampling(DV::Sampling sampling) +{ + decoder->sampling = (dv_sample_t)sampling; +} + +void LibDVWrapper::setOutputBuffer(char *output) +{ +#ifdef COLORSPACE_YV12 + yuv[0] = (unsigned char*)output; + yuv[1] = (unsigned char*)yuv[0] + (width * height); + yuv[2] = (unsigned char*)yuv[1] + (width * height / 4); + pitches[0] = width; + pitches[1] = width / 2; + pitches[2] = width / 2; +#else + yuv[0] = (unsigned char*)output;//render.getDisplayData(); // Decode directly to the XVideo buffer + pitches[0] = width * 2; +#endif +} + +void LibDVWrapper::decode(char *input) +{ + if(first) { + dv_parse_header(decoder, (const uint8_t*)input); + //dv_parse_packs(decoder, frame->data); // Not needed anyway! + + // decoder->system = e_dv_system_625_50; // PAL lines, PAL framerate + // decoder->sampling = e_dv_sample_422; // 4 bytes y, 2 bytes u, 2 bytes v + decoder->std = e_dv_std_iec_61834; + decoder->num_dif_seqs = 12; + first = false; + } + + dv_decode_full_frame(decoder, + (const uint8_t*)input, + e_dv_color_yuv, + yuv, + pitches); +} + diff --git a/lib/libdv_wrapper.h b/lib/libdv_wrapper.h new file mode 100644 index 0000000..995e8d7 --- /dev/null +++ b/lib/libdv_wrapper.h @@ -0,0 +1,107 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * libdv_wrapper.h + * + * Mon Apr 10 11:20:18 CEST 2006 + * Copyright 2006 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of MIaV. + * + * MIaV is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MIaV is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with MIaV; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#ifndef __MIAV_LIBDV_WRAPPER_H__ +#define __MIAV_LIBDV_WRAPPER_H__ + +// Use libdv +#include <libdv/dv.h> +#include <libdv/dv_types.h> + +namespace DV { + /* + #define DV_QUALITY_COLOR 1 // Clear this bit to make monochrome + + #define DV_QUALITY_AC_MASK (0x3 << 1) + #define DV_QUALITY_DC (0x0 << 1) + #define DV_QUALITY_AC_1 (0x1 << 1) + #define DV_QUALITY_AC_2 (0x2 << 1) + + #define DV_QUALITY_BEST (DV_QUALITY_COLOR | DV_QUALITY_AC_2) + #define DV_QUALITY_FASTEST 0 // Monochrome, DC coeffs only + */ + typedef enum { + ColorBest = DV_QUALITY_COLOR | DV_QUALITY_AC_MASK | DV_QUALITY_AC_2, + ColorGood = DV_QUALITY_COLOR | DV_QUALITY_AC_MASK | DV_QUALITY_AC_1, + ColorBad = DV_QUALITY_COLOR | DV_QUALITY_AC_MASK | DV_QUALITY_DC, + MonocromeBest = DV_QUALITY_AC_MASK | DV_QUALITY_AC_2, + MonocromeGood = DV_QUALITY_AC_MASK | DV_QUALITY_AC_1, + MonocromeBad = DV_QUALITY_AC_MASK | DV_QUALITY_DC + } Quality; + /* + typedef enum system_e { + e_dv_system_none = 0, + e_dv_system_525_60, // NTSC + e_dv_system_625_50, // PAL + } dv_system_t; + */ + typedef enum { + //None = e_dv_system_none, + NTSC = e_dv_system_525_60, + PAL = e_dv_system_625_50 + } System; + + /* + typedef enum sample_e { + e_dv_sample_none = 0, + e_dv_sample_411, + e_dv_sample_420, + e_dv_sample_422, + } dv_sample_t; + */ + typedef enum { + //None = e_dv_sample_none, + YUV_411 = e_dv_sample_411, + YUV_420 = e_dv_sample_420, + YUV_422 = e_dv_sample_422 + } Sampling; +}; + +class LibDVWrapper { +public: + LibDVWrapper(DV::Quality quality = DV::ColorBest, + DV::System system = DV::PAL, + DV::Sampling sampling = DV::YUV_422); + ~LibDVWrapper(); + + void setQuality(DV::Quality quality); + void setSystem(DV::System system); + void setSampling(DV::Sampling sampling); + + void setOutputBuffer(char *output); + + void decode(char *input); + +private: + int width, height; + + int pitches[3]; + unsigned char* yuv[3]; + + dv_decoder_t *decoder; +}; + +#endif/*__MIAV_LIBDV_WRAPPER_H__*/ |