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DllAvFormat.h
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#pragma once
/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* 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, 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 XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#if (defined HAVE_CONFIG_H) && (!defined WIN32)
#include "config.h"
#endif
#include "DynamicDll.h"
#include "DllAvCodec.h"
extern "C" {
#ifndef HAVE_MMX
#define HAVE_MMX
#endif
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#ifndef __GNUC__
#pragma warning(disable:4244)
#endif
#if (defined USE_EXTERNAL_FFMPEG)
#include <libavformat/avformat.h>
/* xbmc_read_frame_flush() is defined for us in lib/xbmc-dll-symbols/DllAvFormat.c */
void xbmc_read_frame_flush(AVFormatContext *s);
#else
#include "libavformat/avformat.h"
#if defined(TARGET_DARWIN) || defined(USE_STATIC_FFMPEG)
void ff_read_frame_flush(AVFormatContext *s); // internal replacement
#define xbmc_read_frame_flush ff_read_frame_flush
#endif
#endif
}
/* Flag introduced without a version bump */
#ifndef AVSEEK_FORCE
#define AVSEEK_FORCE 0x20000
#endif
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(55,12,100)
#define AVFORMAT_HAS_STREAM_GET_R_FRAME_RATE
#endif
typedef int64_t offset_t;
class DllAvFormatInterface
{
public:
virtual ~DllAvFormatInterface() {}
virtual void av_register_all_dont_call(void)=0;
virtual void avformat_network_init_dont_call(void)=0;
virtual void avformat_network_deinit_dont_call(void)=0;
virtual AVInputFormat *av_find_input_format(const char *short_name)=0;
virtual void avformat_close_input(AVFormatContext **s)=0;
virtual int av_read_frame(AVFormatContext *s, AVPacket *pkt)=0;
virtual void av_read_frame_flush(AVFormatContext *s)=0;
virtual int av_read_play(AVFormatContext *s)=0;
virtual int av_read_pause(AVFormatContext *s)=0;
virtual int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)=0;
#if (!defined USE_EXTERNAL_FFMPEG) && (!defined TARGET_DARWIN) && (!defined USE_STATIC_FFMPEG)
virtual int avformat_find_stream_info_dont_call(AVFormatContext *ic, AVDictionary **options)=0;
#endif
virtual int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)=0;
virtual AVIOContext *avio_alloc_context(unsigned char *buffer, int buffer_size, int write_flag, void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
offset_t (*seek)(void *opaque, offset_t offset, int whence))=0;
virtual AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened)=0;
virtual AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)=0;
virtual int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, const char *filename, void *logctx, unsigned int offset, unsigned int max_probe_size)=0;
virtual void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output)=0;
virtual int avio_open(AVIOContext **s, const char *filename, int flags)=0;
virtual int avio_close(AVIOContext *s)=0;
virtual int avio_open_dyn_buf(AVIOContext **s)=0;
virtual int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)=0;
virtual offset_t avio_seek(AVIOContext *s, offset_t offset, int whence)=0;
virtual int avio_read(AVIOContext *s, unsigned char *buf, int size)=0;
virtual void avio_w8(AVIOContext *s, int b)=0;
virtual void avio_write(AVIOContext *s, const unsigned char *buf, int size)=0;
virtual void avio_wb24(AVIOContext *s, unsigned int val)=0;
virtual void avio_wb32(AVIOContext *s, unsigned int val)=0;
virtual void avio_wb16(AVIOContext *s, unsigned int val)=0;
virtual AVFormatContext *avformat_alloc_context(void)=0;
virtual int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, const char *format_name, const char *filename) = 0;
virtual AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c)=0;
virtual AVOutputFormat *av_guess_format(const char *short_name, const char *filename, const char *mime_type)=0;
virtual int avformat_write_header (AVFormatContext *s, AVDictionary **options)=0;
virtual int av_write_trailer(AVFormatContext *s)=0;
virtual int av_write_frame (AVFormatContext *s, AVPacket *pkt)=0;
#if defined(AVFORMAT_HAS_STREAM_GET_R_FRAME_RATE)
virtual AVRational av_stream_get_r_frame_rate(const AVStream *s)=0;
#endif
};
#if (defined USE_EXTERNAL_FFMPEG) || (defined TARGET_DARWIN) || (defined USE_STATIC_FFMPEG)
// Use direct mapping
class DllAvFormat : public DllDynamic, DllAvFormatInterface
{
public:
virtual ~DllAvFormat() {}
virtual void av_register_all()
{
CSingleLock lock(DllAvCodec::m_critSection);
return ::av_register_all();
}
virtual void av_register_all_dont_call() { *(volatile int* )0x0 = 0; }
virtual void avformat_network_init_dont_call() { *(volatile int* )0x0 = 0; }
virtual void avformat_network_deinit_dont_call() { *(volatile int* )0x0 = 0; }
virtual AVInputFormat *av_find_input_format(const char *short_name) { return ::av_find_input_format(short_name); }
virtual void avformat_close_input(AVFormatContext **s) { ::avformat_close_input(s); }
virtual int av_read_frame(AVFormatContext *s, AVPacket *pkt) { return ::av_read_frame(s, pkt); }
virtual void av_read_frame_flush(AVFormatContext *s) { ::xbmc_read_frame_flush(s); }
virtual int av_read_play(AVFormatContext *s) { return ::av_read_play(s); }
virtual int av_read_pause(AVFormatContext *s) { return ::av_read_pause(s); }
virtual int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) { return ::av_seek_frame(s, stream_index, timestamp, flags); }
virtual int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
{
CSingleLock lock(DllAvCodec::m_critSection);
return ::avformat_find_stream_info(ic, options);
}
virtual int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
{ return ::avformat_open_input(ps, filename, fmt, options); }
virtual AVIOContext *avio_alloc_context(unsigned char *buffer, int buffer_size, int write_flag, void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
offset_t (*seek)(void *opaque, offset_t offset, int whence)) { return ::avio_alloc_context(buffer, buffer_size, write_flag, opaque, read_packet, write_packet, seek); }
virtual AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened) {return ::av_probe_input_format(pd, is_opened); }
virtual AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max) {*score_max = 100; return ::av_probe_input_format(pd, is_opened); } // Use av_probe_input_format, this is not exported by ffmpeg's headers
virtual int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, const char *filename, void *logctx, unsigned int offset, unsigned int max_probe_size) { return ::av_probe_input_buffer(pb, fmt, filename, logctx, offset, max_probe_size); }
virtual void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output) { ::av_dump_format(ic, index, url, is_output); }
virtual int avio_open(AVIOContext **s, const char *filename, int flags) { return ::avio_open(s, filename, flags); }
virtual int avio_close(AVIOContext *s) { return ::avio_close(s); }
virtual int avio_open_dyn_buf(AVIOContext **s) { return ::avio_open_dyn_buf(s); }
virtual int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer) { return ::avio_close_dyn_buf(s, pbuffer); }
virtual offset_t avio_seek(AVIOContext *s, offset_t offset, int whence) { return ::avio_seek(s, offset, whence); }
virtual int avio_read(AVIOContext *s, unsigned char *buf, int size) { return ::avio_read(s, buf, size); }
virtual void avio_w8(AVIOContext *s, int b) { ::avio_w8(s, b); }
virtual void avio_write(AVIOContext *s, const unsigned char *buf, int size) { ::avio_write(s, buf, size); }
virtual void avio_wb24(AVIOContext *s, unsigned int val) { ::avio_wb24(s, val); }
virtual void avio_wb32(AVIOContext *s, unsigned int val) { ::avio_wb32(s, val); }
virtual void avio_wb16(AVIOContext *s, unsigned int val) { ::avio_wb16(s, val); }
virtual AVFormatContext *avformat_alloc_context() { return ::avformat_alloc_context(); }
virtual int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, const char *format_name, const char *filename){ return ::avformat_alloc_output_context2(ctx,oformat,format_name,filename); }
virtual AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c) { return ::avformat_new_stream(s, c); }
virtual AVOutputFormat *av_guess_format(const char *short_name, const char *filename, const char *mime_type) { return ::av_guess_format(short_name, filename, mime_type); }
virtual int avformat_write_header (AVFormatContext *s, AVDictionary **options) { return ::avformat_write_header (s, options); }
virtual int av_write_trailer(AVFormatContext *s) { return ::av_write_trailer(s); }
virtual int av_write_frame (AVFormatContext *s, AVPacket *pkt) { return ::av_write_frame(s, pkt); }
#if defined(AVFORMAT_HAS_STREAM_GET_R_FRAME_RATE)
virtual AVRational av_stream_get_r_frame_rate(const AVStream *s) { return ::av_stream_get_r_frame_rate(s); }
#endif
// DLL faking.
virtual bool ResolveExports() { return true; }
virtual bool Load() {
#if !defined(TARGET_DARWIN) && !defined(USE_STATIC_FFMPEG)
CLog::Log(LOGDEBUG, "DllAvFormat: Using libavformat system library");
#endif
CSingleLock lock(DllAvCodec::m_critSection);
if (++m_avformat_refcnt == 1)
::avformat_network_init();
return true;
}
virtual void Unload() {
CSingleLock lock(DllAvCodec::m_critSection);
if (--m_avformat_refcnt == 0)
::avformat_network_deinit();
}
protected:
static int m_avformat_refcnt;
};
#else
class DllAvFormat : public DllDynamic, DllAvFormatInterface
{
DECLARE_DLL_WRAPPER(DllAvFormat, DLL_PATH_LIBAVFORMAT)
LOAD_SYMBOLS()
DEFINE_METHOD0(void, av_register_all_dont_call)
DEFINE_METHOD0(void, avformat_network_init_dont_call)
DEFINE_METHOD0(void, avformat_network_deinit_dont_call)
DEFINE_METHOD1(AVInputFormat*, av_find_input_format, (const char *p1))
DEFINE_METHOD1(void, avformat_close_input, (AVFormatContext **p1))
DEFINE_METHOD1(int, av_read_play, (AVFormatContext *p1))
DEFINE_METHOD1(int, av_read_pause, (AVFormatContext *p1))
DEFINE_METHOD1(void, av_read_frame_flush, (AVFormatContext *p1))
DEFINE_FUNC_ALIGNED2(int, __cdecl, av_read_frame, AVFormatContext *, AVPacket *)
DEFINE_FUNC_ALIGNED4(int, __cdecl, av_seek_frame, AVFormatContext*, int, int64_t, int)
DEFINE_FUNC_ALIGNED2(int, __cdecl, avformat_find_stream_info_dont_call, AVFormatContext*, AVDictionary **)
DEFINE_FUNC_ALIGNED4(int, __cdecl, avformat_open_input, AVFormatContext **, const char *, AVInputFormat *, AVDictionary **)
DEFINE_FUNC_ALIGNED2(AVInputFormat*, __cdecl, av_probe_input_format, AVProbeData*, int)
DEFINE_FUNC_ALIGNED3(AVInputFormat*, __cdecl, av_probe_input_format2, AVProbeData*, int, int*)
DEFINE_FUNC_ALIGNED6(int, __cdecl, av_probe_input_buffer, AVIOContext *, AVInputFormat **, const char *, void *, unsigned int, unsigned int)
DEFINE_FUNC_ALIGNED3(int, __cdecl, avio_read, AVIOContext*, unsigned char *, int)
DEFINE_FUNC_ALIGNED2(void, __cdecl, avio_w8, AVIOContext*, int)
DEFINE_FUNC_ALIGNED3(void, __cdecl, avio_write, AVIOContext*, const unsigned char *, int)
DEFINE_FUNC_ALIGNED2(void, __cdecl, avio_wb24, AVIOContext*, unsigned int)
DEFINE_FUNC_ALIGNED2(void, __cdecl, avio_wb32, AVIOContext*, unsigned int)
DEFINE_FUNC_ALIGNED2(void, __cdecl, avio_wb16, AVIOContext*, unsigned int)
DEFINE_METHOD7(AVIOContext *, avio_alloc_context, (unsigned char *p1, int p2, int p3, void *p4,
int (*p5)(void *opaque, uint8_t *buf, int buf_size),
int (*p6)(void *opaque, uint8_t *buf, int buf_size),
offset_t (*p7)(void *opaque, offset_t offset, int whence)))
DEFINE_METHOD4(void, av_dump_format, (AVFormatContext *p1, int p2, const char *p3, int p4))
DEFINE_METHOD3(int, avio_open, (AVIOContext **p1, const char *p2, int p3))
DEFINE_METHOD1(int, avio_close, (AVIOContext *p1))
DEFINE_METHOD1(int, avio_open_dyn_buf, (AVIOContext **p1))
DEFINE_METHOD2(int, avio_close_dyn_buf, (AVIOContext *p1, uint8_t **p2))
DEFINE_METHOD3(offset_t, avio_seek, (AVIOContext *p1, offset_t p2, int p3))
DEFINE_METHOD0(AVFormatContext *, avformat_alloc_context)
DEFINE_METHOD4(int, avformat_alloc_output_context2, (AVFormatContext **p1, AVOutputFormat *p2, const char *p3, const char *p4))
DEFINE_METHOD2(AVStream *, avformat_new_stream, (AVFormatContext *p1, AVCodec *p2))
DEFINE_METHOD3(AVOutputFormat *, av_guess_format, (const char *p1, const char *p2, const char *p3))
DEFINE_METHOD2(int, avformat_write_header , (AVFormatContext *p1, AVDictionary **p2))
DEFINE_METHOD1(int, av_write_trailer, (AVFormatContext *p1))
DEFINE_METHOD2(int, av_write_frame , (AVFormatContext *p1, AVPacket *p2))
#if defined(AVFORMAT_HAS_STREAM_GET_R_FRAME_RATE)
DEFINE_METHOD1(AVRational, av_stream_get_r_frame_rate, (const AVStream *p1))
#endif
BEGIN_METHOD_RESOLVE()
RESOLVE_METHOD_RENAME(av_register_all, av_register_all_dont_call)
RESOLVE_METHOD_RENAME(avformat_network_init, avformat_network_init_dont_call)
RESOLVE_METHOD_RENAME(avformat_network_deinit, avformat_network_deinit_dont_call)
RESOLVE_METHOD(av_find_input_format)
RESOLVE_METHOD(avformat_close_input)
RESOLVE_METHOD(av_read_frame)
RESOLVE_METHOD(av_read_play)
RESOLVE_METHOD(av_read_pause)
RESOLVE_METHOD(av_read_frame_flush)
RESOLVE_METHOD(av_seek_frame)
RESOLVE_METHOD_RENAME(avformat_find_stream_info, avformat_find_stream_info_dont_call)
RESOLVE_METHOD(avformat_open_input)
RESOLVE_METHOD(avio_alloc_context)
RESOLVE_METHOD(av_probe_input_format)
RESOLVE_METHOD(av_probe_input_format2)
RESOLVE_METHOD(av_probe_input_buffer)
RESOLVE_METHOD(av_dump_format)
RESOLVE_METHOD(avio_open)
RESOLVE_METHOD(avio_close)
RESOLVE_METHOD(avio_open_dyn_buf)
RESOLVE_METHOD(avio_close_dyn_buf)
RESOLVE_METHOD(avio_seek)
RESOLVE_METHOD(avio_read)
RESOLVE_METHOD(avio_w8)
RESOLVE_METHOD(avio_write)
RESOLVE_METHOD(avio_wb24)
RESOLVE_METHOD(avio_wb32)
RESOLVE_METHOD(avio_wb16)
RESOLVE_METHOD(avformat_alloc_context)
RESOLVE_METHOD(avformat_alloc_output_context2)
RESOLVE_METHOD(avformat_new_stream)
RESOLVE_METHOD(av_guess_format)
RESOLVE_METHOD(avformat_write_header)
RESOLVE_METHOD(av_write_trailer)
RESOLVE_METHOD(av_write_frame)
#if defined(AVFORMAT_HAS_STREAM_GET_R_FRAME_RATE)
RESOLVE_METHOD(av_stream_get_r_frame_rate)
#endif
END_METHOD_RESOLVE()
/* dependencies of libavformat */
DllAvCodec m_dllAvCodec;
// DllAvUtil loaded implicitely by m_dllAvCodec
public:
void av_register_all()
{
CSingleLock lock(DllAvCodec::m_critSection);
av_register_all_dont_call();
}
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
{
CSingleLock lock(DllAvCodec::m_critSection);
return avformat_find_stream_info_dont_call(ic, options);
}
virtual bool Load()
{
if (!m_dllAvCodec.Load())
return false;
bool loaded = DllDynamic::Load();
CSingleLock lock(DllAvCodec::m_critSection);
if (++m_avformat_refcnt == 1 && loaded)
avformat_network_init_dont_call();
return loaded;
}
virtual void Unload()
{
CSingleLock lock(DllAvCodec::m_critSection);
if (--m_avformat_refcnt == 0 && DllDynamic::IsLoaded())
avformat_network_deinit_dont_call();
DllDynamic::Unload();
}
protected:
static int m_avformat_refcnt;
};
#endif