FFmpeg
vt_internal.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_VT_INTERNAL_H
20 #define AVCODEC_VT_INTERNAL_H
21 
22 #include "avcodec.h"
23 #include "videotoolbox.h"
24 
25 typedef struct VTContext {
26  // The current bitstream buffer.
27  uint8_t *bitstream;
28 
29  // The current size of the bitstream.
31 
32  // The reference size used for fast reallocation.
34 
35  // The core video buffer
36  CVImageBufferRef frame;
37 
38  // Current dummy frames context (depends on exact CVImageBufferRef params).
40 
41  // Non-NULL if the new hwaccel API is used. This is only a separate struct
42  // to ease compatibility with the old API.
44 
45  // Current H264 parameters (used to trigger decoder restart on SPS changes).
46  uint8_t sps[3];
48 
49  void *logctx;
50 } VTContext;
51 
55  AVBufferRef *hw_frames_ctx);
57  const uint8_t *buffer,
58  uint32_t size);
61  const uint8_t *buffer,
62  uint32_t size);
64  const uint8_t *buffer,
65  uint32_t size);
70 
71 #endif /* AVCODEC_VT_INTERNAL_H */
ff_videotoolbox_common_end_frame
int ff_videotoolbox_common_end_frame(AVCodecContext *avctx, AVFrame *frame)
ff_videotoolbox_uninit
int ff_videotoolbox_uninit(AVCodecContext *avctx)
ff_videotoolbox_h264_start_frame
int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: videotoolbox.c:388
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
AVVideotoolboxContext
This struct holds all the information that needs to be passed between the caller and libavcodec for i...
Definition: videotoolbox.h:57
ff_videotoolbox_h264_decode_slice
int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: videotoolbox.c:448
VTContext::allocated_size
int allocated_size
Definition: vt_internal.h:33
ff_videotoolbox_common_init
int ff_videotoolbox_common_init(AVCodecContext *avctx)
videotoolbox.h
ff_videotoolbox_avcc_extradata_create
CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx)
Definition: videotoolbox.c:186
VTContext::bitstream
uint8_t * bitstream
Definition: vt_internal.h:27
ff_videotoolbox_alloc_frame
int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame)
Definition: videotoolbox.c:125
ff_videotoolbox_hvcc_extradata_create
CFDataRef ff_videotoolbox_hvcc_extradata_create(AVCodecContext *avctx)
Definition: videotoolbox.c:231
frame
static AVFrame * frame
Definition: demux_decode.c:54
VTContext::bitstream_size
int bitstream_size
Definition: vt_internal.h:30
ff_videotoolbox_vpcc_extradata_create
CFDataRef ff_videotoolbox_vpcc_extradata_create(AVCodecContext *avctx)
Definition: videotoolbox_vp9.c:64
ff_videotoolbox_frame_params
int ff_videotoolbox_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
size
int size
Definition: twinvq_data.h:10344
VTContext
Definition: vt_internal.h:25
VTContext::frame
CVImageBufferRef frame
Definition: vt_internal.h:36
avcodec.h
AVCodecContext
main external API structure.
Definition: avcodec.h:445
VTContext::vt_ctx
struct AVVideotoolboxContext * vt_ctx
Definition: vt_internal.h:43
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
VTContext::logctx
void * logctx
Definition: vt_internal.h:49
VTContext::cached_hw_frames_ctx
struct AVBufferRef * cached_hw_frames_ctx
Definition: vt_internal.h:39
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
VTContext::reconfig_needed
bool reconfig_needed
Definition: vt_internal.h:47
VTContext::sps
uint8_t sps[3]
Definition: vt_internal.h:46
ff_videotoolbox_buffer_copy
int ff_videotoolbox_buffer_copy(VTContext *vtctx, const uint8_t *buffer, uint32_t size)
Definition: videotoolbox.c:74