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/*
* Copyright (C) 2010 Ole André Vadla Ravnås <oleavr@soundrop.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_VT_API_H__
#define __GST_VT_API_H__
#include "dynapi.h"
#include "CoreMedia/CoreMedia.h"
G_BEGIN_DECLS
typedef struct _GstVTApi GstVTApi;
typedef struct _GstVTApiClass GstVTApiClass;
typedef enum _VTStatus VTStatus;
typedef enum _VTDecodeFrameFlags VTDecodeFrameFlags;
typedef enum _VTDecodeInfoFlags VTDecodeInfoFlags;
typedef guint32 VTFormatId;
typedef CFTypeRef VTCompressionSessionRef;
typedef CFTypeRef VTDecompressionSessionRef;
typedef struct _VTCompressionOutputCallback VTCompressionOutputCallback;
typedef struct _VTDecompressionOutputCallback VTDecompressionOutputCallback;
typedef VTStatus (* VTCompressionOutputCallbackFunc) (void * data, int a2,
int a3, int a4, CMSampleBufferRef sbuf, int a6, int a7);
typedef void (* VTDecompressionOutputCallbackFunc) (void *data1, void *data2,
VTStatus result, VTDecodeInfoFlags info, CVBufferRef cvbuf,
CMTime pts, CMTime dts);
enum _VTStatus
{
kVTSuccess = 0
};
enum _VTFormat
{
kVTFormatH264 = 'avc1',
kVTFormatMPEG2 = 'mp2v',
kVTFormatJPEG = 'jpeg'
};
enum _VTDecodeFrameFlags
{
kVTDecodeFrame_EnableAsynchronousDecompression = 1<<0,
kVTDecodeFrame_DoNotOutputFrame = 1<<1,
/* low-power mode that can not decode faster than 1x realtime. */
kVTDecodeFrame_1xRealTimePlayback = 1<<2,
/* Output frame in PTS order.
* Needs to call VTDecompressionSessionFinishDelayedFrames to dequeue */
kVTDecodeFrame_EnableTemporalProcessing = 1<<3,
};
enum _VTDecodeInfoFlags
{
kVTDecodeInfo_Asynchronous = 1UL << 0,
kVTDecodeInfo_FrameDropped = 1UL << 1,
};
struct _VTCompressionOutputCallback
{
VTCompressionOutputCallbackFunc func;
void * data;
};
struct _VTDecompressionOutputCallback
{
VTDecompressionOutputCallbackFunc func;
void * data;
};
struct _GstVTApi
{
GstDynApi parent;
VTStatus (* VTCompressionSessionCompleteFrames)
(VTCompressionSessionRef session, CMTime completeUntilDisplayTimestamp);
VTStatus (* VTCompressionSessionCopyProperty)
(VTCompressionSessionRef session, CFTypeRef key, void* unk,
CFTypeRef * value);
VTStatus (* VTCompressionSessionCopySupportedPropertyDictionary)
(VTCompressionSessionRef session, CFDictionaryRef * dict);
VTStatus (* VTCompressionSessionCreate)
(CFAllocatorRef allocator, gint width, gint height, VTFormatId formatId,
gsize unk1, CFDictionaryRef sourcePixelBufferAttributes, gsize unk2,
VTCompressionOutputCallback outputCallback,
VTCompressionSessionRef * session);
VTStatus (* VTCompressionSessionEncodeFrame)
(VTCompressionSessionRef session, CVPixelBufferRef pixelBuffer,
CMTime displayTimestamp, CMTime displayDuration,
CFDictionaryRef frameOptions, void * sourceTrackingCallback,
void * sourceFrameRefCon);
void (* VTCompressionSessionInvalidate)
(VTCompressionSessionRef session);
VTStatus (* VTCompressionSessionSetProperty)
(VTCompressionSessionRef session, CFStringRef propName,
CFTypeRef propValue);
VTStatus (* VTDecompressionSessionCreate)
(CFAllocatorRef allocator,
CMFormatDescriptionRef videoFormatDescription,
CFTypeRef sessionOptions,
CFDictionaryRef destinationPixelBufferAttributes,
VTDecompressionOutputCallback * outputCallback,
VTDecompressionSessionRef * session);
VTStatus (* VTDecompressionSessionDecodeFrame)
(VTDecompressionSessionRef session, CMSampleBufferRef sbuf,
VTDecodeFrameFlags decode_flags, void *src_buf,
VTDecodeInfoFlags *info_flags);
void (* VTDecompressionSessionInvalidate)
(VTDecompressionSessionRef session);
VTStatus (* VTDecompressionSessionWaitForAsynchronousFrames)
(VTDecompressionSessionRef session);
VTStatus (* VTDecompressionSessionFinishDelayedFrames)
(VTDecompressionSessionRef session);
CFStringRef * kVTCompressionPropertyKey_AllowTemporalCompression;
CFStringRef * kVTCompressionPropertyKey_AverageDataRate;
CFStringRef * kVTCompressionPropertyKey_ExpectedFrameRate;
CFStringRef * kVTCompressionPropertyKey_ExpectedDuration;
CFStringRef * kVTCompressionPropertyKey_MaxKeyFrameInterval;
CFStringRef * kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration;
CFStringRef * kVTCompressionPropertyKey_ProfileLevel;
CFStringRef * kVTCompressionPropertyKey_Usage;
CFStringRef * kVTEncodeFrameOptionKey_ForceKeyFrame;
CFStringRef * kVTProfileLevel_H264_Baseline_1_3;
CFStringRef * kVTProfileLevel_H264_Baseline_3_0;
CFStringRef * kVTProfileLevel_H264_Extended_5_0;
CFStringRef * kVTProfileLevel_H264_High_5_0;
CFStringRef * kVTProfileLevel_H264_Main_3_0;
CFStringRef * kVTProfileLevel_H264_Main_3_1;
CFStringRef * kVTProfileLevel_H264_Main_4_0;
CFStringRef * kVTProfileLevel_H264_Main_4_1;
CFStringRef * kVTProfileLevel_H264_Main_5_0;
};
struct _GstVTApiClass
{
GstDynApiClass parent_class;
};
GType gst_vt_api_get_type (void);
GstVTApi * gst_vt_api_obtain (GError ** error);
G_END_DECLS
#endif
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