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106 lines
3.2 KiB
106 lines
3.2 KiB
/* |
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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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/* |
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* APIs internal to the generic codec layer. |
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* |
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* MUST NOT be included by individual encoders or decoders. |
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*/ |
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#ifndef AVCODEC_AVCODEC_INTERNAL_H |
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#define AVCODEC_AVCODEC_INTERNAL_H |
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#include "libavutil/frame.h" |
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#include "packet.h" |
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struct AVCodecContext; |
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typedef struct SideDataMap { |
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enum AVPacketSideDataType packet; |
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enum AVFrameSideDataType frame; |
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} SideDataMap; |
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/** |
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* A map between packet and frame side data types. |
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* Terminated with an entry where packet=AV_PKT_DATA_NB. |
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*/ |
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extern const SideDataMap ff_sd_global_map[]; |
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/** |
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* avcodec_receive_frame() implementation for decoders. |
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*/ |
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int ff_decode_receive_frame(struct AVCodecContext *avctx, struct AVFrame *frame); |
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/** |
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* avcodec_receive_frame() implementation for encoders. |
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*/ |
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int ff_encode_receive_frame(struct AVCodecContext *avctx, struct AVFrame *frame); |
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/* |
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* Perform encoder initialization and validation. |
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* Called when opening the encoder, before the FFCodec.init() call. |
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*/ |
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int ff_encode_preinit(struct AVCodecContext *avctx); |
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/** |
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* Perform decoder initialization and validation. |
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* Called when opening the decoder, before the FFCodec.init() call. |
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*/ |
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int ff_decode_preinit(struct AVCodecContext *avctx); |
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void ff_decode_flush_buffers(struct AVCodecContext *avctx); |
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void ff_encode_flush_buffers(struct AVCodecContext *avctx); |
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struct AVCodecInternal *ff_decode_internal_alloc(void); |
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struct AVCodecInternal *ff_encode_internal_alloc(void); |
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void ff_codec_close(struct AVCodecContext *avctx); |
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int ff_thread_init(struct AVCodecContext *s); |
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void ff_thread_free(struct AVCodecContext *s); |
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/** |
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* Wait for decoding threads to finish and reset internal state. |
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* Called by avcodec_flush_buffers(). |
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* |
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* @param avctx The context. |
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*/ |
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void ff_thread_flush(struct AVCodecContext *avctx); |
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/** |
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* Submit available packets for decoding to worker threads, return a |
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* decoded frame if available. Returns AVERROR(EAGAIN) if none is available. |
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* |
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* Parameters are the same as FFCodec.receive_frame. |
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*/ |
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int ff_thread_receive_frame(struct AVCodecContext *avctx, AVFrame *frame); |
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/** |
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* Do the actual decoding and obtain a decoded frame from the decoder, if |
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* available. When frame threading is used, this is invoked by the worker |
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* threads, otherwise by the top layer directly. |
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*/ |
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int ff_decode_receive_frame_internal(struct AVCodecContext *avctx, AVFrame *frame); |
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/** |
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* Get a packet for decoding. This gets invoked by the worker threads. |
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*/ |
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int ff_thread_get_packet(struct AVCodecContext *avctx, AVPacket *pkt); |
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#endif // AVCODEC_AVCODEC_INTERNAL_H
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