mirror of https://git.ffmpeg.org/ffmpeg.git
83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
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/*
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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_CODEC_INTERNAL_H
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#define AVCODEC_CODEC_INTERNAL_H
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/**
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* The codec does not modify any global variables in the init function,
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* allowing to call the init function without locking any global mutexes.
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*/
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#define FF_CODEC_CAP_INIT_THREADSAFE (1 << 0)
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/**
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* The codec allows calling the close function for deallocation even if
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* the init function returned a failure. Without this capability flag, a
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* codec does such cleanup internally when returning failures from the
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* init function and does not expect the close function to be called at
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* all.
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*/
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#define FF_CODEC_CAP_INIT_CLEANUP (1 << 1)
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/**
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* Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set
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* AVFrame.pkt_dts manually. If the flag is set, decode.c won't overwrite
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* this field. If it's unset, decode.c tries to guess the pkt_dts field
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* from the input AVPacket.
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*/
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#define FF_CODEC_CAP_SETS_PKT_DTS (1 << 2)
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/**
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* The decoder extracts and fills its parameters even if the frame is
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* skipped due to the skip_frame setting.
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*/
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#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM (1 << 3)
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/**
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* The decoder sets the cropping fields in the output frames manually.
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* If this cap is set, the generic code will initialize output frame
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* dimensions to coded rather than display values.
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*/
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#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 4)
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/**
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* Codec initializes slice-based threading with a main function
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*/
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#define FF_CODEC_CAP_SLICE_THREAD_HAS_MF (1 << 5)
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/*
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* The codec supports frame threading and has inter-frame dependencies, so it
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* uses ff_thread_report/await_progress().
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*/
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#define FF_CODEC_CAP_ALLOCATE_PROGRESS (1 << 6)
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/**
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* Codec handles avctx->thread_count == 0 (auto) internally.
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*/
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#define FF_CODEC_CAP_AUTO_THREADS (1 << 7)
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/**
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* Codec handles output frame properties internally instead of letting the
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* internal logic derive them from AVCodecInternal.last_pkt_props.
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*/
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#define FF_CODEC_CAP_SETS_FRAME_PROPS (1 << 8)
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/**
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* AVCodec.codec_tags termination value
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*/
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#define FF_CODEC_TAGS_END -1
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struct AVCodecDefault {
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const char *key;
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const char *value;
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};
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#endif /* AVCODEC_CODEC_INTERNAL_H */
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