532b23f079
This adds tons of code for no other benefit than making VideoToolbox support conform with the new hwaccel API (using hw_device_ctx and hw_frames_ctx). Since VideoToolbox decoding does not actually require the user to allocate frames, the new code does mostly nothing. One benefit is that ffmpeg_videotoolbox.c can be dropped once generic hwaccel support for ffmpeg.c is merged from Libav. Does not consider VDA or VideoToolbox encoding. Fun fact: the frame transfer functions are copied from vaapi, as the mapping makes copying generic boilerplate. Mapping itself is not exported by the VT code, because I don't know how to test.
63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_VDA_VT_INTERNAL_H
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#define AVCODEC_VDA_VT_INTERNAL_H
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void ff_vda_output_callback(void *vda_hw_ctx,
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CFDictionaryRef user_info,
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OSStatus status,
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uint32_t infoFlags,
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CVImageBufferRef image_buffer);
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int ff_vda_default_init(AVCodecContext *avctx);
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void ff_vda_default_free(AVCodecContext *avctx);
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typedef struct VTContext {
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// The current bitstream buffer.
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uint8_t *bitstream;
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// The current size of the bitstream.
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int bitstream_size;
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// The reference size used for fast reallocation.
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int allocated_size;
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// The core video buffer
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CVImageBufferRef frame;
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// Current dummy frames context (depends on exact CVImageBufferRef params).
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struct AVBufferRef *cached_hw_frames_ctx;
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// Non-NULL if the new hwaccel API is used. This is only a separate struct
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// to ease compatibility with the old API.
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struct AVVideotoolboxContext *vt_ctx;
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} VTContext;
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int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame);
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int ff_videotoolbox_uninit(AVCodecContext *avctx);
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int ff_videotoolbox_buffer_create(VTContext *vtctx, AVFrame *frame);
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int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx,
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const uint8_t *buffer,
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uint32_t size);
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int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx,
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const uint8_t *buffer,
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uint32_t size);
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CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx);
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#endif /* AVCODEC_VDA_VT_INTERNAL_H */
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