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gstreamer/subprojects/gst-plugins-bad/sys/decklink/gstdecklink.h
Seungha Yang 3536b7f3a6 decklink: Fix broken COM string conversion 
WideCharToMultiByte return is the string length without null terminate
character if passed "cchWideChar" does not include the null terminate
character size. Instead of passing the exact string length, pass -1 so that
the API can understand the input string is null terminated already and
returned value from the API includes the character.

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3023
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5444>
2023-10-09 20:10:25 +09:00

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/* GStreamer
* Copyright (C) 2011 David Schleef <ds@schleef.org>
* Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2015 Florian Langlois <florian.langlois@fr.thalesgroup.com>
* Copyright (C) 2020 Sohonet <dev@sohonet.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_DECKLINK_H_
#define _GST_DECKLINK_H_
#include <gst/gst.h>
#include <gst/video/video.h>
#include <stdint.h>
#ifdef G_OS_WIN32
#include "win/DeckLinkAPI.h"
#include <stdio.h>
#define bool BOOL
#define COMSTR_T BSTR
#define CONVERT_COM_STRING(s) G_STMT_START { \
BSTR _s = (BSTR)s; \
int _length = ::WideCharToMultiByte(CP_ACP, 0, (wchar_t*)_s, -1, NULL, 0, NULL, NULL); \
s = (char *) malloc(_length); \
::WideCharToMultiByte(CP_ACP, 0, (wchar_t*)_s, -1, s, _length, NULL, NULL); \
::SysFreeString(_s); \
} G_STMT_END
#define FREE_COM_STRING(s) free(s);
#define CONVERT_TO_COM_STRING(s) G_STMT_START { \
char * _s = (char *)s; \
int _length = ::MultiByteToWideChar(CP_ACP, 0, (char*)_s, -1, NULL, 0); \
s = ::SysAllocStringLen(NULL, _length); \
::MultiByteToWideChar(CP_ACP, 0, (char*)_s, -1, s, _length); \
g_free(_s); \
} G_STMT_END
#elif defined(__APPLE__)
#include "osx/DeckLinkAPI.h"
#define COMSTR_T CFStringRef
#define CONVERT_COM_STRING(s) G_STMT_START { \
CFStringRef _s = (CFStringRef)s; \
CFIndex _length; \
CFStringGetBytes(_s, CFRangeMake(0, CFStringGetLength(_s)), kCFStringEncodingUTF8, 0, FALSE, NULL, 0, &_length); \
_length += 1; \
s = (char *) malloc(_length); \
CFStringGetCString(_s, s, _length, kCFStringEncodingUTF8); \
CFRelease(_s); \
} G_STMT_END
#define FREE_COM_STRING(s) free(s);
#define CONVERT_TO_COM_STRING(s) G_STMT_START { \
char * _s = (char *)s; \
s = CFStringCreateWithCString(kCFAllocatorDefault, _s, kCFStringEncodingUTF8); \
g_free(_s); \
} G_STMT_END
#define WINAPI
#else /* Linux */
#include "linux/DeckLinkAPI.h"
#define COMSTR_T const char*
#define CONVERT_COM_STRING(s)
#define CONVERT_TO_COM_STRING(s)
/* While this is a const char*, the string still has to be freed */
#define FREE_COM_STRING(s) free(s);
#define WINAPI
#endif /* G_OS_WIN32 */
void decklink_element_init (GstPlugin * plugin);
typedef enum {
GST_DECKLINK_MODE_AUTO,
GST_DECKLINK_MODE_NTSC,
GST_DECKLINK_MODE_NTSC2398,
GST_DECKLINK_MODE_PAL,
GST_DECKLINK_MODE_NTSC_P,
GST_DECKLINK_MODE_PAL_P,
GST_DECKLINK_MODE_1080p2398,
GST_DECKLINK_MODE_1080p24,
GST_DECKLINK_MODE_1080p25,
GST_DECKLINK_MODE_1080p2997,
GST_DECKLINK_MODE_1080p30,
GST_DECKLINK_MODE_1080i50,
GST_DECKLINK_MODE_1080i5994,
GST_DECKLINK_MODE_1080i60,
GST_DECKLINK_MODE_1080p50,
GST_DECKLINK_MODE_1080p5994,
GST_DECKLINK_MODE_1080p60,
GST_DECKLINK_MODE_720p50,
GST_DECKLINK_MODE_720p5994,
GST_DECKLINK_MODE_720p60,
GST_DECKLINK_MODE_1556p2398,
GST_DECKLINK_MODE_1556p24,
GST_DECKLINK_MODE_1556p25,
GST_DECKLINK_MODE_2KDCI2398,
GST_DECKLINK_MODE_2KDCI24,
GST_DECKLINK_MODE_2KDCI25,
GST_DECKLINK_MODE_2KDCI2997,
GST_DECKLINK_MODE_2KDCI30,
GST_DECKLINK_MODE_2KDCI50,
GST_DECKLINK_MODE_2KDCI5994,
GST_DECKLINK_MODE_2KDCI60,
GST_DECKLINK_MODE_2160p2398,
GST_DECKLINK_MODE_2160p24,
GST_DECKLINK_MODE_2160p25,
GST_DECKLINK_MODE_2160p2997,
GST_DECKLINK_MODE_2160p30,
GST_DECKLINK_MODE_2160p50,
GST_DECKLINK_MODE_2160p5994,
GST_DECKLINK_MODE_2160p60,
GST_DECKLINK_MODE_NTSC_WIDESCREEN,
GST_DECKLINK_MODE_NTSC2398_WIDESCREEN,
GST_DECKLINK_MODE_PAL_WIDESCREEN,
GST_DECKLINK_MODE_NTSC_P_WIDESCREEN,
GST_DECKLINK_MODE_PAL_P_WIDESCREEN,
/**
* GstDecklinkModes::4kdcip2398:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp2398,
/**
* GstDecklinkModes::4kdcip24:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp24,
/**
* GstDecklinkModes::4kdcip25:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp25,
/**
* GstDecklinkModes::4kdcip2997:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp2997,
/**
* GstDecklinkModes::4kdcip30:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp30,
/**
* GstDecklinkModes::4kdcip50:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp50,
/**
* GstDecklinkModes::4kdcip5994:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp5994,
/**
* GstDecklinkModes::4kdcip60:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4Kp60,
/**
* GstDecklinkModes::8kp2398:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p2398,
/**
* GstDecklinkModes::8kp24:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p24,
/**
* GstDecklinkModes::8kp25:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p25,
/**
* GstDecklinkModes::8kp2997:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p2997,
/**
* GstDecklinkModes::8kp30:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p30,
/**
* GstDecklinkModes::8kp50:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p50,
/**
* GstDecklinkModes::8kp5994:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p5994,
/**
* GstDecklinkModes::8kp60:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_4320p60,
/**
* GstDecklinkModes::8kdcip2398:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp2398,
/**
* GstDecklinkModes::8kdcip24:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp24,
/**
* GstDecklinkModes::8kdcip25:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp25,
/**
* GstDecklinkModes::8kdcip2997:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp2997,
/**
* GstDecklinkModes::8kdcip30:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp30,
/**
* GstDecklinkModes::8kdcip50:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp50,
/**
* GstDecklinkModes::8kdcip5994:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp5994,
/**
* GstDecklinkModes::8kdcip60:
*
* Since: 1.22
*/
GST_DECKLINK_MODE_8Kp60
} GstDecklinkModeEnum;
#define GST_TYPE_DECKLINK_MODE (gst_decklink_mode_get_type ())
GType gst_decklink_mode_get_type (void);
typedef enum {
GST_DECKLINK_CONNECTION_AUTO,
GST_DECKLINK_CONNECTION_SDI,
GST_DECKLINK_CONNECTION_HDMI,
GST_DECKLINK_CONNECTION_OPTICAL_SDI,
GST_DECKLINK_CONNECTION_COMPONENT,
GST_DECKLINK_CONNECTION_COMPOSITE,
GST_DECKLINK_CONNECTION_SVIDEO
} GstDecklinkConnectionEnum;
#define GST_TYPE_DECKLINK_CONNECTION (gst_decklink_connection_get_type ())
GType gst_decklink_connection_get_type (void);
typedef enum {
GST_DECKLINK_AUDIO_CONNECTION_AUTO,
GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED,
GST_DECKLINK_AUDIO_CONNECTION_AES_EBU,
GST_DECKLINK_AUDIO_CONNECTION_ANALOG,
GST_DECKLINK_AUDIO_CONNECTION_ANALOG_XLR,
GST_DECKLINK_AUDIO_CONNECTION_ANALOG_RCA
} GstDecklinkAudioConnectionEnum;
#define GST_TYPE_DECKLINK_AUDIO_CONNECTION (gst_decklink_audio_connection_get_type ())
GType gst_decklink_audio_connection_get_type (void);
typedef enum {
GST_DECKLINK_AUDIO_CHANNELS_MAX = 0,
GST_DECKLINK_AUDIO_CHANNELS_2 = 2,
GST_DECKLINK_AUDIO_CHANNELS_8 = 8,
GST_DECKLINK_AUDIO_CHANNELS_16 = 16
} GstDecklinkAudioChannelsEnum;
#define GST_TYPE_DECKLINK_AUDIO_CHANNELS (gst_decklink_audio_channels_get_type ())
GType gst_decklink_audio_channels_get_type (void);
typedef enum {
GST_DECKLINK_VIDEO_FORMAT_AUTO,
GST_DECKLINK_VIDEO_FORMAT_8BIT_YUV, /* bmdFormat8BitYUV */
GST_DECKLINK_VIDEO_FORMAT_10BIT_YUV, /* bmdFormat10BitYUV */
GST_DECKLINK_VIDEO_FORMAT_8BIT_ARGB, /* bmdFormat8BitARGB */
GST_DECKLINK_VIDEO_FORMAT_8BIT_BGRA, /* bmdFormat8BitBGRA */
/**
* GstDecklinkVideoFormat::10bit-rgb:
*
* Since: 1.22.2
*/
GST_DECKLINK_VIDEO_FORMAT_10BIT_RGB, /* bmdFormat10BitRGB */
/* Not yet supported */
#if 0
GST_DECKLINK_VIDEO_FORMAT_12BIT_RGB, /* bmdFormat12BitRGB */
GST_DECKLINK_VIDEO_FORMAT_12BIT_RGBLE, /* bmdFormat12BitRGBLE */
GST_DECKLINK_VIDEO_FORMAT_10BIT_RGBXLE, /* bmdFormat10BitRGBXLE */
GST_DECKLINK_VIDEO_FORMAT_10BIT_RGBX, /* bmdFormat10BitRGBX */
#endif
} GstDecklinkVideoFormat;
#define GST_TYPE_DECKLINK_VIDEO_FORMAT (gst_decklink_video_format_get_type ())
GType gst_decklink_video_format_get_type (void);
typedef enum {
GST_DECKLINK_PROFILE_ID_DEFAULT,
GST_DECKLINK_PROFILE_ID_ONE_SUB_DEVICE_FULL_DUPLEX, /* bmdProfileOneSubDeviceFullDuplex */
GST_DECKLINK_PROFILE_ID_ONE_SUB_DEVICE_HALF_DUPLEX, /* bmdProfileOneSubDeviceHalfDuplex */
GST_DECKLINK_PROFILE_ID_TWO_SUB_DEVICES_FULL_DUPLEX, /* bmdProfileTwoSubDevicesFullDuplex */
GST_DECKLINK_PROFILE_ID_TWO_SUB_DEVICES_HALF_DUPLEX, /* bmdProfileTwoSubDevicesHalfDuplex */
GST_DECKLINK_PROFILE_ID_FOUR_SUB_DEVICES_HALF_DUPLEX, /* bmdProfileFourSubDevicesHalfDuplex */
} GstDecklinkProfileId;
#define GST_TYPE_DECKLINK_PROFILE_ID (gst_decklink_profile_id_get_type ())
GType gst_decklink_profile_id_get_type (void);
typedef enum {
GST_DECKLINK_MAPPING_FORMAT_DEFAULT,
GST_DECKLINK_MAPPING_FORMAT_LEVEL_A, /* bmdDeckLinkConfigSMPTELevelAOutput = true */
GST_DECKLINK_MAPPING_FORMAT_LEVEL_B, /* bmdDeckLinkConfigSMPTELevelAOutput = false */
} GstDecklinkMappingFormat;
#define GST_TYPE_DECKLINK_MAPPING_FORMAT (gst_decklink_mapping_format_get_type ())
GType gst_decklink_mapping_format_get_type (void);
typedef enum {
GST_DECKLINK_TIMECODE_FORMAT_RP188VITC1, /*bmdTimecodeRP188VITC1 */
GST_DECKLINK_TIMECODE_FORMAT_RP188VITC2, /*bmdTimecodeRP188VITC2 */
GST_DECKLINK_TIMECODE_FORMAT_RP188LTC, /*bmdTimecodeRP188LTC */
GST_DECKLINK_TIMECODE_FORMAT_RP188ANY, /*bmdTimecodeRP188Any */
GST_DECKLINK_TIMECODE_FORMAT_VITC, /*bmdTimecodeVITC */
GST_DECKLINK_TIMECODE_FORMAT_VITCFIELD2, /*bmdTimecodeVITCField2 */
GST_DECKLINK_TIMECODE_FORMAT_SERIAL /* bmdTimecodeSerial */
} GstDecklinkTimecodeFormat;
#define GST_TYPE_DECKLINK_TIMECODE_FORMAT (gst_decklink_timecode_format_get_type ())
GType gst_decklink_timecode_format_get_type (void);
typedef enum
{
GST_DECKLINK_KEYER_MODE_OFF,
GST_DECKLINK_KEYER_MODE_INTERNAL,
GST_DECKLINK_KEYER_MODE_EXTERNAL
} GstDecklinkKeyerMode;
#define GST_TYPE_DECKLINK_KEYER_MODE (gst_decklink_keyer_mode_get_type ())
GType gst_decklink_keyer_mode_get_type (void);
/* Enum BMDKeyerMode options of off, internal and external @@@ DJ @@@ */
typedef uint32_t BMDKeyerMode;
enum _BMDKeyerMode
{
bmdKeyerModeOff = /* 'off' */ 0,
bmdKeyerModeInternal = /* 'int' */ 1,
bmdKeyerModeExternal = /* 'ext' */ 2
};
const BMDPixelFormat gst_decklink_pixel_format_from_type (GstDecklinkVideoFormat t);
const gint gst_decklink_bpp_from_type (GstDecklinkVideoFormat t);
const GstDecklinkVideoFormat gst_decklink_type_from_video_format (GstVideoFormat f);
GstVideoFormat gst_decklink_video_format_from_type (BMDPixelFormat pf);
const BMDTimecodeFormat gst_decklink_timecode_format_from_enum (GstDecklinkTimecodeFormat f);
const GstDecklinkTimecodeFormat gst_decklink_timecode_format_to_enum (BMDTimecodeFormat f);
const BMDProfileID gst_decklink_profile_id_from_enum (GstDecklinkProfileId p);
const GstDecklinkProfileId gst_decklink_profile_id_to_enum (BMDProfileID p);
const BMDKeyerMode gst_decklink_keyer_mode_from_enum (GstDecklinkKeyerMode m);
const GstDecklinkKeyerMode gst_decklink_keyer_mode_to_enum (BMDKeyerMode m);
typedef struct _GstDecklinkMode GstDecklinkMode;
struct _GstDecklinkMode {
BMDDisplayMode mode;
int width;
int height;
int fps_n;
int fps_d;
gboolean interlaced;
int par_n;
int par_d;
gboolean tff;
const gchar *colorimetry;
};
const GstDecklinkMode * gst_decklink_get_mode (GstDecklinkModeEnum e);
const GstDecklinkModeEnum gst_decklink_get_mode_enum_from_bmd (BMDDisplayMode mode);
const BMDVideoConnection gst_decklink_get_connection (GstDecklinkConnectionEnum e);
GstCaps * gst_decklink_mode_get_caps (GstDecklinkModeEnum e, BMDPixelFormat f, gboolean input);
GstCaps * gst_decklink_mode_get_template_caps (gboolean input);
typedef struct _GstDecklinkOutput GstDecklinkOutput;
struct _GstDecklinkOutput {
IDeckLink *device;
IDeckLinkOutput *output;
IDeckLinkProfileAttributes *attributes;
IDeckLinkKeyer *keyer;
gchar *hw_serial_number;
gint64 persistent_id;
GstClock *clock;
GstClockTime clock_start_time, clock_last_time, clock_epoch;
GstClockTimeDiff clock_offset;
gboolean started;
gboolean clock_restart;
/* Everything below protected by mutex */
GMutex lock;
GCond cond;
/* Set by the video source */
/* Configured mode or NULL */
const GstDecklinkMode *mode;
GstElement *audiosink;
gboolean audio_enabled;
GstElement *videosink;
gboolean video_enabled;
void (*start_scheduled_playback) (GstElement *videosink);
};
typedef struct _GstDecklinkInput GstDecklinkInput;
struct _GstDecklinkInput {
IDeckLink *device;
IDeckLinkInput *input;
IDeckLinkConfiguration *config;
IDeckLinkProfileAttributes *attributes;
gchar *hw_serial_number;
gint64 persistent_id;
/* Everything below protected by mutex */
GMutex lock;
/* Set by the video source */
void (*got_video_frame) (GstElement *videosrc, IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode, GstClockTime capture_time, GstClockTime stream_time, GstClockTime stream_duration, GstClockTime hardware_time, GstClockTime hardware_duration, IDeckLinkTimecode *dtc, gboolean no_signal);
/* Configured mode or NULL */
const GstDecklinkMode *mode;
BMDPixelFormat format;
gboolean auto_format;
/* Set by the audio source */
void (*got_audio_packet) (GstElement *videosrc, IDeckLinkAudioInputPacket * packet, GstClockTime capture_time, GstClockTime stream_time, GstClockTime stream_duration, GstClockTime hardware_time, GstClockTime hardware_duration, gboolean no_signal);
GstElement *audiosrc;
gboolean audio_enabled;
GstElement *videosrc;
gboolean video_enabled;
void (*start_streams) (GstElement *videosrc);
};
GstDecklinkOutput * gst_decklink_acquire_nth_output (gint n, gint64 persistent_id, GstElement * sink, gboolean is_audio);
void gst_decklink_release_nth_output (gint n, gint64 persistent_id, GstElement * sink, gboolean is_audio);
GstDecklinkInput * gst_decklink_acquire_nth_input (gint n, gint64 persistent_id, GstElement * src, gboolean is_audio);
void gst_decklink_release_nth_input (gint n, gint64 persistent_id, GstElement * src, gboolean is_audio);
const GstDecklinkMode * gst_decklink_find_mode_for_caps (GstCaps * caps);
const GstDecklinkMode * gst_decklink_find_mode_and_format_for_caps (GstCaps * caps, BMDPixelFormat * format);
GstCaps * gst_decklink_mode_get_caps_all_formats (GstDecklinkModeEnum e, gboolean input);
GstCaps * gst_decklink_pixel_format_get_caps (BMDPixelFormat f, gboolean input);
#define GST_TYPE_DECKLINK_DEVICE gst_decklink_device_get_type()
#define GST_DECKLINK_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECKLINK_DEVICE,GstDecklinkDevice))
typedef struct _GstDecklinkDevice GstDecklinkDevice;
typedef struct _GstDecklinkDeviceClass GstDecklinkDeviceClass;
struct _GstDecklinkDeviceClass
{
GstDeviceClass parent_class;
};
struct _GstDecklinkDevice
{
GstDevice parent;
gboolean video;
gboolean capture;
gint64 persistent_id;
};
GType gst_decklink_device_get_type (void);
GList * gst_decklink_get_devices (void);
#endif
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