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1caa4123bd
* newdev/master: rtsp: Use GET_PARAMETER for keep-alive for generic RTSP servers mlp_parse.c: set AVCodecContext channel_layout APIChanges: mark the place where 0.6 was branched. avio: make get_checksum() internal. avio: move ff_crc04C11DB7_update() from avio.h -> avio_internal.h avio: make init_checksum() internal. NOT MERGED Add MxPEG decoder NOT MERGED Add support for picture_ptr field in MJpegDecodeContext NOT MERGED Move MJPEG's input buffer preprocessing in separate public function NOT MERGED Support reference picture defined by bitmask in MJPEG's SOS decoder sndio bug fix Merged-by: Michael Niedermayer <michaelni@gmx.at>
85 lines
3.1 KiB
C
85 lines
3.1 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 AVFORMAT_AVIO_INTERNAL_H
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#define AVFORMAT_AVIO_INTERNAL_H
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#include "avio.h"
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int ffio_init_context(AVIOContext *s,
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unsigned char *buffer,
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int buffer_size,
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int write_flag,
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void *opaque,
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int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
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int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
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int64_t (*seek)(void *opaque, int64_t offset, int whence));
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/**
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* Read size bytes from AVIOContext into buf.
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* This reads at most 1 packet. If that is not enough fewer bytes will be
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* returned.
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* @return number of bytes read or AVERROR
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*/
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int ffio_read_partial(AVIOContext *s, unsigned char *buf, int size);
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void ffio_fill(AVIOContext *s, int b, int count);
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static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
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{
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avio_wl32(pb, MKTAG(s[0], s[1], s[2], s[3]));
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}
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/**
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* Rewind the AVIOContext using the specified buffer containing the first buf_size bytes of the file.
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* Used after probing to avoid seeking.
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* Joins buf and s->buffer, taking any overlap into consideration.
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* @note s->buffer must overlap with buf or they can't be joined and the function fails
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*
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* @param s The read-only AVIOContext to rewind
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* @param buf The probe buffer containing the first buf_size bytes of the file
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* @param buf_size The size of buf
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* @return 0 in case of success, a negative value corresponding to an
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* AVERROR code in case of failure
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*/
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int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size);
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uint64_t ffio_read_varlen(AVIOContext *bc);
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/** @warning must be called before any I/O */
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int ffio_set_buf_size(AVIOContext *s, int buf_size);
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int ffio_read_pause(AVIOContext *h, int pause);
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int64_t ffio_read_seek (AVIOContext *h, int stream_index,
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int64_t timestamp, int flags);
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/* udp.c */
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int ff_udp_set_remote_url(URLContext *h, const char *uri);
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int ff_udp_get_local_port(URLContext *h);
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void ffio_init_checksum(AVIOContext *s,
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unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len),
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unsigned long checksum);
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unsigned long ffio_get_checksum(AVIOContext *s);
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unsigned long ff_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf,
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unsigned int len);
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#endif // AVFORMAT_AVIO_INTERNAL_H
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