zoneminder/src/zm_ffmpeg.h

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/*
* ZoneMinder FFMPEG Interface, $Date$, $Revision$
* Copyright (C) 2001-2008 Philip Coombes
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef ZM_FFMPEG_H
#define ZM_FFMPEG_H
#include <stdint.h>
#include "zm.h"
#include "zm_image.h"
#ifdef __cplusplus
extern "C" {
#endif
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// AVUTIL
#if HAVE_LIBAVUTIL_AVUTIL_H
#include <libavutil/avutil.h>
#include <libavutil/base64.h>
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#include <libavutil/mathematics.h>
#elif HAVE_FFMPEG_AVUTIL_H
#include <ffmpeg/avutil.h>
#include <ffmpeg/base64.h>
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#include <ffmpeg/mathematics.h>
#endif
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// AVCODEC
#if HAVE_LIBAVCODEC_AVCODEC_H
#include <libavcodec/avcodec.h>
#elif HAVE_FFMPEG_AVCODEC_H
#include <ffmpeg/avcodec.h>
#endif
#if defined(HAVE_LIBAVCODEC_AVCODEC_H) && LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(54,25,0)
#define _AVCODECID AVCodecID
#else
#define _AVCODECID CodecID
#endif
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// AVFORMAT
#if HAVE_LIBAVFORMAT_AVFORMAT_H
#include <libavformat/avformat.h>
#elif HAVE_FFMPEG_AVFORMAT_H
#include <ffmpeg/avformat.h>
#endif
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// AVDEVICE
#if HAVE_LIBAVDEVICE_AVDEVICE_H
#include <libavdevice/avdevice.h>
#elif HAVE_FFMPEG_AVDEVICE_H
#include <ffmpeg/avdevice.h>
#endif
// SWSCALE
#if HAVE_LIBSWSCALE_SWSCALE_H
#include <libswscale/swscale.h>
#elif HAVE_FFMPEG_SWSCALE_H
#include <ffmpeg/swscale.h>
#endif
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#ifdef __cplusplus
}
#endif
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#if ( HAVE_LIBAVUTIL_AVUTIL_H || HAVE_LIBAVCODEC_AVCODEC_H || HAVE_LIBAVFORMAT_AVFORMAT_H || HAVE_LIBAVDEVICE_AVDEVICE_H )
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#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(53, 4, 0)
#if defined(AVIO_WRONLY)
#define AVIO_FLAG_WRITE AVIO_WRONLY
#else
#define AVIO_FLAG_WRITE URL_WRONLY
#endif
#endif
/* Fix for not having SWS_CPU_CAPS_SSE2 defined */
#ifndef SWS_CPU_CAPS_SSE2
#define SWS_CPU_CAPS_SSE2 0x02000000
#endif
#if HAVE_LIBAVUTIL
enum PixelFormat GetFFMPEGPixelFormat(unsigned int p_colours, unsigned p_subpixelorder);
#endif // HAVE_LIBAVUTIL
/* SWScale wrapper class to make our life easier and reduce code reuse */
#if HAVE_LIBSWSCALE && HAVE_LIBAVUTIL
class SWScale {
public:
SWScale();
~SWScale();
int SetDefaults(enum PixelFormat in_pf, enum PixelFormat out_pf, unsigned int width, unsigned int height);
int ConvertDefaults(const Image* img, uint8_t* out_buffer, const size_t out_buffer_size);
int ConvertDefaults(const uint8_t* in_buffer, const size_t in_buffer_size, uint8_t* out_buffer, const size_t out_buffer_size);
int Convert(const Image* img, uint8_t* out_buffer, const size_t out_buffer_size, enum PixelFormat in_pf, enum PixelFormat out_pf, unsigned int width, unsigned int height);
int Convert(const uint8_t* in_buffer, const size_t in_buffer_size, uint8_t* out_buffer, const size_t out_buffer_size, enum PixelFormat in_pf, enum PixelFormat out_pf, unsigned int width, unsigned int height);
protected:
bool gotdefaults;
struct SwsContext* swscale_ctx;
AVFrame* input_avframe;
AVFrame* output_avframe;
enum PixelFormat default_input_pf;
enum PixelFormat default_output_pf;
unsigned int default_width;
unsigned int default_height;
};
#endif // HAVE_LIBSWSCALE && HAVE_LIBAVUTIL
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(54, 25, 0)
#define AV_CODEC_ID_NONE CODEC_ID_NONE
#define AV_CODEC_ID_PCM_MULAW CODEC_ID_PCM_MULAW
#define AV_CODEC_ID_PCM_ALAW CODEC_ID_PCM_ALAW
#define AV_CODEC_ID_PCM_S16BE CODEC_ID_PCM_S16BE
#define AV_CODEC_ID_QCELP CODEC_ID_QCELP
#define AV_CODEC_ID_MP2 CODEC_ID_MP2
#define AV_CODEC_ID_MP3 CODEC_ID_MP3
#define AV_CODEC_ID_MJPEG CODEC_ID_MJPEG
#define AV_CODEC_ID_H261 CODEC_ID_H261
#define AV_CODEC_ID_MPEG1VIDEO CODEC_ID_MPEG1VIDEO
#define AV_CODEC_ID_MPEG2VIDEO CODEC_ID_MPEG2VIDEO
#define AV_CODEC_ID_MPEG2TS CODEC_ID_MPEG2TS
#define AV_CODEC_ID_H263 CODEC_ID_H263
#define AV_CODEC_ID_H264 CODEC_ID_H264
#define AV_CODEC_ID_MPEG4 CODEC_ID_MPEG4
#define AV_CODEC_ID_AAC CODEC_ID_AAC
#define AV_CODEC_ID_AMR_NB CODEC_ID_AMR_NB
#endif
/*
* Some versions of libav does not contain this definition.
*/
#ifndef AV_ERROR_MAX_STRING_SIZE
#define AV_ERROR_MAX_STRING_SIZE 64
#endif
/*
* C++ friendly version of av_err2str taken from http://libav-users.943685.n4.nabble.com/Libav-user-g-4-7-2-fails-to-compile-av-err2str-td4656417.html.
* Newer g++ versions fail with "error: taking address of temporary array" when using native libav version.
*/
#ifdef __cplusplus
inline static const std::string av_make_error_string(int errnum)
{
char errbuf[AV_ERROR_MAX_STRING_SIZE];
#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(50, 12, 13)
av_strerror(errnum, errbuf, AV_ERROR_MAX_STRING_SIZE);
#else
snprintf(errbuf, AV_ERROR_MAX_STRING_SIZE, "libav error %d", errnum);
#endif
return (std::string)errbuf;
}
#undef av_err2str
#define av_err2str(errnum) av_make_error_string(errnum).c_str()
#endif // __cplusplus
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#endif // ( HAVE_LIBAVUTIL_AVUTIL_H || HAVE_LIBAVCODEC_AVCODEC_H || HAVE_LIBAVFORMAT_AVFORMAT_H || HAVE_LIBAVDEVICE_AVDEVICE_H )
#endif // ZM_FFMPEG_H