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Merge pull request #19661 from alalek:ffmpeg_fixes_3.4

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* videoio(ffmpeg): eliminate MSVC build warnings

* videoio(ffmpeg): update initialization code

- repair FFmpeg logger settings on each .open() call
pull/19656/head
Alexander Alekhin 4 years ago committed by GitHub
parent ba7d0c5b23
commit 1c88e1fd19
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 59 additions and 43 deletions
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  1. 86
      modules/videoio/src/cap_ffmpeg_impl.hpp

86
modules/videoio/src/cap_ffmpeg_impl.hpp
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@ -61,6 +61,9 @@
#ifdef __GNUC__
# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
#ifdef _MSC_VER
#pragma warning(disable: 4996) // was declared deprecated
#endif
#ifndef CV_UNUSED // Required for standalone compilation mode (OpenCV defines this in base.hpp)
#define CV_UNUSED(name) (void)name
@ -250,7 +253,7 @@ inline void get_monotonic_time(timespec *tv)
t.QuadPart -= offset.QuadPart;
microseconds = (double)t.QuadPart / frequencyToMicroseconds;
t.QuadPart = microseconds;
t.QuadPart = (LONGLONG)microseconds;
tv->tv_sec = t.QuadPart / 1000000;
tv->tv_nsec = (t.QuadPart % 1000000) * 1000;
}
@ -722,16 +725,6 @@ struct ImplMutex::Impl
int refcount;
};
#ifndef __GNUC__
static int _interlockedExchangeAdd(int* addr, int delta)
{
#if defined _MSC_VER && _MSC_VER >= 1500
return (int)_InterlockedExchangeAdd((long volatile*)addr, delta);
#else
return (int)InterlockedExchangeAdd((long volatile*)addr, delta);
#endif
}
#endif // __GNUC__
#elif defined __APPLE__
@ -859,22 +852,13 @@ static void ffmpeg_log_callback(void *ptr, int level, const char *fmt, va_list v
class InternalFFMpegRegister
{
public:
InternalFFMpegRegister()
{
AutoLock lock(_mutex);
if (!_initialized)
static void init_()
{
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 13, 0)
avformat_network_init();
#endif
/* register all codecs, demux and protocols */
av_register_all();
/* register a callback function for synchronization */
av_lockmgr_register(&LockCallBack);
static InternalFFMpegRegister instance;
}
static void initLogger_()
{
#ifndef NO_GETENV
char* debug_option = getenv("OPENCV_FFMPEG_DEBUG");
if (debug_option != NULL)
@ -887,23 +871,51 @@ public:
{
av_log_set_level(AV_LOG_ERROR);
}
}
_initialized = true;
public:
static void init()
{
if (!_initialized)
{
AutoLock lock(_mutex);
if (!_initialized)
{
init_();
}
}
initLogger_(); // update logger setup unconditionally (GStreamer's libav plugin may override these settings)
}
InternalFFMpegRegister()
{
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 13, 0)
avformat_network_init();
#endif
/* register all codecs, demux and protocols */
av_register_all();
/* register a callback function for synchronization */
av_lockmgr_register(&LockCallBack);
_initialized = true;
}
~InternalFFMpegRegister()
{
_initialized = false;
av_lockmgr_register(NULL);
av_log_set_callback(NULL);
}
};
static InternalFFMpegRegister _init;
bool CvCapture_FFMPEG::open( const char* _filename )
{
InternalFFMpegRegister::init();
AutoLock lock(_mutex);
unsigned i;
bool valid = false;
@ -1416,9 +1428,9 @@ double CvCapture_FFMPEG::getProperty( int property_id ) const
case CV_FFMPEG_CAP_PROP_FRAME_COUNT:
return (double)get_total_frames();
case CV_FFMPEG_CAP_PROP_FRAME_WIDTH:
return (double)((rotation_auto && rotation_angle%180) ? frame.height : frame.width);
return (double)((rotation_auto && ((rotation_angle%180) != 0)) ? frame.height : frame.width);
case CV_FFMPEG_CAP_PROP_FRAME_HEIGHT:
return (double)((rotation_auto && rotation_angle%180) ? frame.width : frame.height);
return (double)((rotation_auto && ((rotation_angle%180) != 0)) ? frame.width : frame.height);
case CV_FFMPEG_CAP_PROP_FPS:
return get_fps();
case CV_FFMPEG_CAP_PROP_FOURCC:
@ -1658,10 +1670,10 @@ bool CvCapture_FFMPEG::setProperty( int property_id, double value )
case CV_FFMPEG_CAP_PROP_ORIENTATION_AUTO:
#if ((LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(52, 111, 0)) && \
(LIBAVUTIL_BUILD >= CALC_FFMPEG_VERSION(52, 94, 100)))
rotation_auto = static_cast<bool>(value);
rotation_auto = value != 0 ? true : false;
return true;
#else
rotation_auto = 0;
rotation_auto = false;
return false;
#endif
break;
@ -2096,7 +2108,7 @@ bool CvVideoWriter_FFMPEG::writeFrame( const unsigned char* data, int step, int
// 2. (dataend - SIMD_SIZE) and (dataend + SIMD_SIZE) is from the same 4k page
const int CV_STEP_ALIGNMENT = 32;
const size_t CV_SIMD_SIZE = 32;
const size_t CV_PAGE_MASK = ~(4096 - 1);
const size_t CV_PAGE_MASK = ~(size_t)(4096 - 1);
const unsigned char* dataend = data + ((size_t)height * step);
if (step % CV_STEP_ALIGNMENT != 0 ||
(((size_t)dataend - CV_SIMD_SIZE) & CV_PAGE_MASK) != (((size_t)dataend + CV_SIMD_SIZE) & CV_PAGE_MASK))
@ -2295,6 +2307,10 @@ static inline void cv_ff_codec_tag_dump(const AVCodecTag *const *tags)
bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
double fps, int width, int height, bool is_color )
{
InternalFFMpegRegister::init();
AutoLock lock(_mutex);
CV_CODEC_ID codec_id = CV_CODEC(CODEC_ID_NONE);
int err, codec_pix_fmt;
double bitrate_scale = 1;
@ -2569,7 +2585,7 @@ bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
}
int64_t lbit_rate = (int64_t)c->bit_rate;
lbit_rate += (bitrate / 2);
lbit_rate += (int64_t)(bitrate / 2);
lbit_rate = std::min(lbit_rate, (int64_t)INT_MAX);
c->bit_rate_tolerance = (int)lbit_rate;
c->bit_rate = (int)lbit_rate;
@ -2962,7 +2978,7 @@ bool OutputMediaStream_FFMPEG::open(const char* fileName, int width, int height,
#endif
c->codec_tag = MKTAG('H', '2', '6', '4');
c->bit_rate_tolerance = c->bit_rate;
c->bit_rate_tolerance = (int)(c->bit_rate);
// open the output file, if needed
if (!(fmt_->flags & AVFMT_NOFILE))

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