2 * This file is part of FFmpeg.
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.
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.
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
19 #ifndef AVCODEC_VT_INTERNAL_H
20 #define AVCODEC_VT_INTERNAL_H
22 typedef struct VTContext {
23 // The current bitstream buffer.
26 // The current size of the bitstream.
29 // The reference size used for fast reallocation.
32 // The core video buffer
33 CVImageBufferRef frame;
35 // Current dummy frames context (depends on exact CVImageBufferRef params).
36 struct AVBufferRef *cached_hw_frames_ctx;
38 // Non-NULL if the new hwaccel API is used. This is only a separate struct
39 // to ease compatibility with the old API.
40 struct AVVideotoolboxContext *vt_ctx;
42 // Current H264 parameters (used to trigger decoder restart on SPS changes).
45 unsigned int sps_capa;
49 int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame);
50 int ff_videotoolbox_uninit(AVCodecContext *avctx);
51 int ff_videotoolbox_buffer_create(VTContext *vtctx, AVFrame *frame);
52 int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx,
53 const uint8_t *buffer,
55 int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx,
56 const uint8_t *buffer,
58 CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx);
59 CFDataRef ff_videotoolbox_hvcc_extradata_create(AVCodecContext *avctx);
61 #endif /* AVCODEC_VT_INTERNAL_H */