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8400b126ac
This was intended as an optimisation for skipped blocks in MPEG2 P-frames and never used elsewhere. Removing this "optimisation" speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9). Signed-off-by: Mans Rullgard <mans@mansr.com>
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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* @file
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* common internal api header.
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*/
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#ifndef AVCODEC_INTERNAL_H
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#define AVCODEC_INTERNAL_H
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#include <stdint.h>
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#include "libavutil/pixfmt.h"
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#include "avcodec.h"
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typedef struct InternalBuffer {
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uint8_t *base[AV_NUM_DATA_POINTERS];
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uint8_t *data[AV_NUM_DATA_POINTERS];
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int linesize[AV_NUM_DATA_POINTERS];
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int width;
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int height;
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enum PixelFormat pix_fmt;
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uint8_t **extended_data;
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int audio_data_size;
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int nb_channels;
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} InternalBuffer;
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typedef struct AVCodecInternal {
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/**
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* internal buffer count
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* used by default get/release/reget_buffer().
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*/
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int buffer_count;
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/**
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* internal buffers
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* used by default get/release/reget_buffer().
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*/
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InternalBuffer *buffer;
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/**
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* Whether the parent AVCodecContext is a copy of the context which had
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* init() called on it.
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* This is used by multithreading - shared tables and picture pointers
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* should be freed from the original context only.
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*/
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int is_copy;
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} AVCodecInternal;
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struct AVCodecDefault {
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const uint8_t *key;
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const uint8_t *value;
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};
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/**
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* Determine whether pix_fmt is a hardware accelerated format.
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*/
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int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
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/**
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* Return the hardware accelerated codec for codec codec_id and
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* pixel format pix_fmt.
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*
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* @param codec_id the codec to match
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* @param pix_fmt the pixel format to match
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* @return the hardware accelerated codec, or NULL if none was found.
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*/
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AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
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/**
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* Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
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* If there is no such matching pair then size is returned.
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*/
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int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
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unsigned int avpriv_toupper4(unsigned int x);
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int avpriv_lock_avformat(void);
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int avpriv_unlock_avformat(void);
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#endif /* AVCODEC_INTERNAL_H */
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