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Diffstat (limited to 'ffmpeg1/libavcodec/bytestream.h')
-rw-r--r--ffmpeg1/libavcodec/bytestream.h345
1 files changed, 0 insertions, 345 deletions
diff --git a/ffmpeg1/libavcodec/bytestream.h b/ffmpeg1/libavcodec/bytestream.h
deleted file mode 100644
index af7f75b..0000000
--- a/ffmpeg1/libavcodec/bytestream.h
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * Bytestream functions
- * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
- * Copyright (c) 2012 Aneesh Dogra (lionaneesh) <lionaneesh@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_BYTESTREAM_H
-#define AVCODEC_BYTESTREAM_H
-
-#include <stdint.h>
-#include <string.h>
-
-#include "libavutil/common.h"
-#include "libavutil/intreadwrite.h"
-
-typedef struct GetByteContext {
- const uint8_t *buffer, *buffer_end, *buffer_start;
-} GetByteContext;
-
-typedef struct PutByteContext {
- uint8_t *buffer, *buffer_end, *buffer_start;
- int eof;
-} PutByteContext;
-
-#define DEF(type, name, bytes, read, write) \
-static av_always_inline type bytestream_get_ ## name(const uint8_t **b) \
-{ \
- (*b) += bytes; \
- return read(*b - bytes); \
-} \
-static av_always_inline void bytestream_put_ ## name(uint8_t **b, \
- const type value) \
-{ \
- write(*b, value); \
- (*b) += bytes; \
-} \
-static av_always_inline void bytestream2_put_ ## name ## u(PutByteContext *p, \
- const type value) \
-{ \
- bytestream_put_ ## name(&p->buffer, value); \
-} \
-static av_always_inline void bytestream2_put_ ## name(PutByteContext *p, \
- const type value) \
-{ \
- if (!p->eof && (p->buffer_end - p->buffer >= bytes)) { \
- write(p->buffer, value); \
- p->buffer += bytes; \
- } else \
- p->eof = 1; \
-} \
-static av_always_inline type bytestream2_get_ ## name ## u(GetByteContext *g) \
-{ \
- return bytestream_get_ ## name(&g->buffer); \
-} \
-static av_always_inline type bytestream2_get_ ## name(GetByteContext *g) \
-{ \
- if (g->buffer_end - g->buffer < bytes) \
- return 0; \
- return bytestream2_get_ ## name ## u(g); \
-} \
-static av_always_inline type bytestream2_peek_ ## name(GetByteContext *g) \
-{ \
- if (g->buffer_end - g->buffer < bytes) \
- return 0; \
- return read(g->buffer); \
-}
-
-DEF(uint64_t, le64, 8, AV_RL64, AV_WL64)
-DEF(unsigned int, le32, 4, AV_RL32, AV_WL32)
-DEF(unsigned int, le24, 3, AV_RL24, AV_WL24)
-DEF(unsigned int, le16, 2, AV_RL16, AV_WL16)
-DEF(uint64_t, be64, 8, AV_RB64, AV_WB64)
-DEF(unsigned int, be32, 4, AV_RB32, AV_WB32)
-DEF(unsigned int, be24, 3, AV_RB24, AV_WB24)
-DEF(unsigned int, be16, 2, AV_RB16, AV_WB16)
-DEF(unsigned int, byte, 1, AV_RB8 , AV_WB8)
-
-#if HAVE_BIGENDIAN
-# define bytestream2_get_ne16 bytestream2_get_be16
-# define bytestream2_get_ne24 bytestream2_get_be24
-# define bytestream2_get_ne32 bytestream2_get_be32
-# define bytestream2_get_ne64 bytestream2_get_be64
-# define bytestream2_get_ne16u bytestream2_get_be16u
-# define bytestream2_get_ne24u bytestream2_get_be24u
-# define bytestream2_get_ne32u bytestream2_get_be32u
-# define bytestream2_get_ne64u bytestream2_get_be64u
-# define bytestream2_put_ne16 bytestream2_put_be16
-# define bytestream2_put_ne24 bytestream2_put_be24
-# define bytestream2_put_ne32 bytestream2_put_be32
-# define bytestream2_put_ne64 bytestream2_put_be64
-# define bytestream2_peek_ne16 bytestream2_peek_be16
-# define bytestream2_peek_ne24 bytestream2_peek_be24
-# define bytestream2_peek_ne32 bytestream2_peek_be32
-# define bytestream2_peek_ne64 bytestream2_peek_be64
-#else
-# define bytestream2_get_ne16 bytestream2_get_le16
-# define bytestream2_get_ne24 bytestream2_get_le24
-# define bytestream2_get_ne32 bytestream2_get_le32
-# define bytestream2_get_ne64 bytestream2_get_le64
-# define bytestream2_get_ne16u bytestream2_get_le16u
-# define bytestream2_get_ne24u bytestream2_get_le24u
-# define bytestream2_get_ne32u bytestream2_get_le32u
-# define bytestream2_get_ne64u bytestream2_get_le64u
-# define bytestream2_put_ne16 bytestream2_put_le16
-# define bytestream2_put_ne24 bytestream2_put_le24
-# define bytestream2_put_ne32 bytestream2_put_le32
-# define bytestream2_put_ne64 bytestream2_put_le64
-# define bytestream2_peek_ne16 bytestream2_peek_le16
-# define bytestream2_peek_ne24 bytestream2_peek_le24
-# define bytestream2_peek_ne32 bytestream2_peek_le32
-# define bytestream2_peek_ne64 bytestream2_peek_le64
-#endif
-
-static av_always_inline void bytestream2_init(GetByteContext *g,
- const uint8_t *buf,
- int buf_size)
-{
- g->buffer = buf;
- g->buffer_start = buf;
- g->buffer_end = buf + buf_size;
-}
-
-static av_always_inline void bytestream2_init_writer(PutByteContext *p,
- uint8_t *buf,
- int buf_size)
-{
- p->buffer = buf;
- p->buffer_start = buf;
- p->buffer_end = buf + buf_size;
- p->eof = 0;
-}
-
-static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
-{
- return g->buffer_end - g->buffer;
-}
-
-static av_always_inline unsigned int bytestream2_get_bytes_left_p(PutByteContext *p)
-{
- return p->buffer_end - p->buffer;
-}
-
-static av_always_inline void bytestream2_skip(GetByteContext *g,
- unsigned int size)
-{
- g->buffer += FFMIN(g->buffer_end - g->buffer, size);
-}
-
-static av_always_inline void bytestream2_skipu(GetByteContext *g,
- unsigned int size)
-{
- g->buffer += size;
-}
-
-static av_always_inline void bytestream2_skip_p(PutByteContext *p,
- unsigned int size)
-{
- int size2;
- if (p->eof)
- return;
- size2 = FFMIN(p->buffer_end - p->buffer, size);
- if (size2 != size)
- p->eof = 1;
- p->buffer += size2;
-}
-
-static av_always_inline int bytestream2_tell(GetByteContext *g)
-{
- return (int)(g->buffer - g->buffer_start);
-}
-
-static av_always_inline int bytestream2_tell_p(PutByteContext *p)
-{
- return (int)(p->buffer - p->buffer_start);
-}
-
-static av_always_inline int bytestream2_size(GetByteContext *g)
-{
- return (int)(g->buffer_end - g->buffer_start);
-}
-
-static av_always_inline int bytestream2_size_p(PutByteContext *p)
-{
- return (int)(p->buffer_end - p->buffer_start);
-}
-
-static av_always_inline int bytestream2_seek(GetByteContext *g,
- int offset,
- int whence)
-{
- switch (whence) {
- case SEEK_CUR:
- offset = av_clip(offset, -(g->buffer - g->buffer_start),
- g->buffer_end - g->buffer);
- g->buffer += offset;
- break;
- case SEEK_END:
- offset = av_clip(offset, -(g->buffer_end - g->buffer_start), 0);
- g->buffer = g->buffer_end + offset;
- break;
- case SEEK_SET:
- offset = av_clip(offset, 0, g->buffer_end - g->buffer_start);
- g->buffer = g->buffer_start + offset;
- break;
- default:
- return AVERROR(EINVAL);
- }
- return bytestream2_tell(g);
-}
-
-static av_always_inline int bytestream2_seek_p(PutByteContext *p,
- int offset,
- int whence)
-{
- p->eof = 0;
- switch (whence) {
- case SEEK_CUR:
- if (p->buffer_end - p->buffer < offset)
- p->eof = 1;
- offset = av_clip(offset, -(p->buffer - p->buffer_start),
- p->buffer_end - p->buffer);
- p->buffer += offset;
- break;
- case SEEK_END:
- if (offset > 0)
- p->eof = 1;
- offset = av_clip(offset, -(p->buffer_end - p->buffer_start), 0);
- p->buffer = p->buffer_end + offset;
- break;
- case SEEK_SET:
- if (p->buffer_end - p->buffer_start < offset)
- p->eof = 1;
- offset = av_clip(offset, 0, p->buffer_end - p->buffer_start);
- p->buffer = p->buffer_start + offset;
- break;
- default:
- return AVERROR(EINVAL);
- }
- return bytestream2_tell_p(p);
-}
-
-static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g,
- uint8_t *dst,
- unsigned int size)
-{
- int size2 = FFMIN(g->buffer_end - g->buffer, size);
- memcpy(dst, g->buffer, size2);
- g->buffer += size2;
- return size2;
-}
-
-static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g,
- uint8_t *dst,
- unsigned int size)
-{
- memcpy(dst, g->buffer, size);
- g->buffer += size;
- return size;
-}
-
-static av_always_inline unsigned int bytestream2_put_buffer(PutByteContext *p,
- const uint8_t *src,
- unsigned int size)
-{
- int size2;
- if (p->eof)
- return 0;
- size2 = FFMIN(p->buffer_end - p->buffer, size);
- if (size2 != size)
- p->eof = 1;
- memcpy(p->buffer, src, size2);
- p->buffer += size2;
- return size2;
-}
-
-static av_always_inline unsigned int bytestream2_put_bufferu(PutByteContext *p,
- const uint8_t *src,
- unsigned int size)
-{
- memcpy(p->buffer, src, size);
- p->buffer += size;
- return size;
-}
-
-static av_always_inline void bytestream2_set_buffer(PutByteContext *p,
- const uint8_t c,
- unsigned int size)
-{
- int size2;
- if (p->eof)
- return;
- size2 = FFMIN(p->buffer_end - p->buffer, size);
- if (size2 != size)
- p->eof = 1;
- memset(p->buffer, c, size2);
- p->buffer += size2;
-}
-
-static av_always_inline void bytestream2_set_bufferu(PutByteContext *p,
- const uint8_t c,
- unsigned int size)
-{
- memset(p->buffer, c, size);
- p->buffer += size;
-}
-
-static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
-{
- return p->eof;
-}
-
-static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b,
- uint8_t *dst,
- unsigned int size)
-{
- memcpy(dst, *b, size);
- (*b) += size;
- return size;
-}
-
-static av_always_inline void bytestream_put_buffer(uint8_t **b,
- const uint8_t *src,
- unsigned int size)
-{
- memcpy(*b, src, size);
- (*b) += size;
-}
-
-#endif /* AVCODEC_BYTESTREAM_H */
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