X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Faviobuf.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Faviobuf.c;h=0000000000000000000000000000000000000000;hb=6fa8f2f38d4b0b35f8539bf94e27ae27015c7689;hp=6e5be722611356d72bf8090e5f55e89bfea3c540;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git

diff --git a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavformat/aviobuf.c b/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavformat/aviobuf.c
deleted file mode 100644
index 6e5be72..0000000
--- a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavformat/aviobuf.c
+++ /dev/null
@@ -1,684 +0,0 @@
-/*
- * Buffered I/O for ffmpeg system
- * Copyright (c) 2000,2001 Fabrice Bellard
- *
- * This library 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 of the License, or (at your option) any later version.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "avformat.h"
-#include "avio.h"
-#include <stdarg.h>
-
-#define IO_BUFFER_SIZE 32768
-
-int init_put_byte(ByteIOContext *s,
-                  unsigned char *buffer,
-                  int buffer_size,
-                  int write_flag,
-                  void *opaque,
-                  int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  void (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  int (*seek)(void *opaque, offset_t offset, int whence))
-{
-    s->buffer = buffer;
-    s->buffer_size = buffer_size;
-    s->buf_ptr = buffer;
-    s->write_flag = write_flag;
-    if (!s->write_flag) 
-        s->buf_end = buffer;
-    else
-        s->buf_end = buffer + buffer_size;
-    s->opaque = opaque;
-    s->write_packet = write_packet;
-    s->read_packet = read_packet;
-    s->seek = seek;
-    s->pos = 0;
-    s->must_flush = 0;
-    s->eof_reached = 0;
-    s->is_streamed = 0;
-    s->max_packet_size = 0;
-    return 0;
-}
-                  
-
-static void flush_buffer(ByteIOContext *s)
-{
-    if (s->buf_ptr > s->buffer) {
-        if (s->write_packet)
-            s->write_packet(s->opaque, s->buffer, s->buf_ptr - s->buffer);
-        s->pos += s->buf_ptr - s->buffer;
-    }
-    s->buf_ptr = s->buffer;
-}
-
-void put_byte(ByteIOContext *s, int b)
-{
-    *(s->buf_ptr)++ = b;
-    if (s->buf_ptr >= s->buf_end) 
-        flush_buffer(s);
-}
-
-void put_buffer(ByteIOContext *s, const unsigned char *buf, int size)
-{
-    int len;
-
-    while (size > 0) {
-        len = (s->buf_end - s->buf_ptr);
-        if (len > size)
-            len = size;
-        memcpy(s->buf_ptr, buf, len);
-        s->buf_ptr += len;
-
-        if (s->buf_ptr >= s->buf_end) 
-            flush_buffer(s);
-
-        buf += len;
-        size -= len;
-    }
-}
-
-void put_flush_packet(ByteIOContext *s)
-{
-    flush_buffer(s);
-    s->must_flush = 0;
-}
-
-offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence)
-{
-    offset_t offset1;
-
-    if (whence != SEEK_CUR && whence != SEEK_SET)
-        return -EINVAL;
-    
-    if (s->write_flag) {
-        if (whence == SEEK_CUR) {
-            offset1 = s->pos + (s->buf_ptr - s->buffer);
-            if (offset == 0)
-                return offset1;
-            offset += offset1;
-        }
-        offset1 = offset - s->pos;
-        if (!s->must_flush && 
-            offset1 >= 0 && offset1 < (s->buf_end - s->buffer)) {
-            /* can do the seek inside the buffer */
-            s->buf_ptr = s->buffer + offset1;
-        } else {
-            if (!s->seek)
-                return -EPIPE;
-            flush_buffer(s);
-            s->must_flush = 1;
-            s->buf_ptr = s->buffer;
-            s->seek(s->opaque, offset, SEEK_SET);
-            s->pos = offset;
-        }
-    } else {
-        if (whence == SEEK_CUR) {
-            offset1 = s->pos - (s->buf_end - s->buffer) + (s->buf_ptr - s->buffer);
-            if (offset == 0)
-                return offset1;
-            offset += offset1;
-        }
-        offset1 = offset - (s->pos - (s->buf_end - s->buffer));
-        if (offset1 >= 0 && offset1 <= (s->buf_end - s->buffer)) {
-            /* can do the seek inside the buffer */
-            s->buf_ptr = s->buffer + offset1;
-        } else {
-            if (!s->seek)
-                return -EPIPE;
-            s->buf_ptr = s->buffer;
-            s->buf_end = s->buffer;
-            s->seek(s->opaque, offset, SEEK_SET);
-            s->pos = offset;
-        }
-        s->eof_reached = 0;
-    }
-    return offset;
-}
-
-void url_fskip(ByteIOContext *s, offset_t offset)
-{
-    url_fseek(s, offset, SEEK_CUR);
-}
-
-offset_t url_ftell(ByteIOContext *s)
-{
-    return url_fseek(s, 0, SEEK_CUR);
-}
-
-int url_feof(ByteIOContext *s)
-{
-    return s->eof_reached;
-}
-
-void put_le32(ByteIOContext *s, unsigned int val)
-{
-    put_byte(s, val);
-    put_byte(s, val >> 8);
-    put_byte(s, val >> 16);
-    put_byte(s, val >> 24);
-}
-
-void put_be32(ByteIOContext *s, unsigned int val)
-{
-    put_byte(s, val >> 24);
-    put_byte(s, val >> 16);
-    put_byte(s, val >> 8);
-    put_byte(s, val);
-}
-
-/* IEEE format is assumed */
-void put_be64_double(ByteIOContext *s, double val)
-{
-    union {
-        double d;
-        uint64_t ull;
-    } u;
-    u.d = val;
-    put_be64(s, u.ull);
-}
-
-void put_strz(ByteIOContext *s, const char *str)
-{
-    if (str)
-        put_buffer(s, (const unsigned char *) str, strlen(str) + 1);
-    else
-        put_byte(s, 0);
-}
-
-void put_le64(ByteIOContext *s, uint64_t val)
-{
-    put_le32(s, (uint32_t)(val & 0xffffffff));
-    put_le32(s, (uint32_t)(val >> 32));
-}
-
-void put_be64(ByteIOContext *s, uint64_t val)
-{
-    put_be32(s, (uint32_t)(val >> 32));
-    put_be32(s, (uint32_t)(val & 0xffffffff));
-}
-
-void put_le16(ByteIOContext *s, unsigned int val)
-{
-    put_byte(s, val);
-    put_byte(s, val >> 8);
-}
-
-void put_be16(ByteIOContext *s, unsigned int val)
-{
-    put_byte(s, val >> 8);
-    put_byte(s, val);
-}
-
-void put_tag(ByteIOContext *s, const char *tag)
-{
-    while (*tag) {
-        put_byte(s, *tag++);
-    }
-}
-
-/* Input stream */
-
-static void fill_buffer(ByteIOContext *s)
-{
-    int len;
-
-    /* no need to do anything if EOF already reached */
-    if (s->eof_reached)
-        return;
-    len = s->read_packet(s->opaque, s->buffer, s->buffer_size);
-    if (len <= 0) {
-        /* do not modify buffer if EOF reached so that a seek back can
-           be done without rereading data */
-        s->eof_reached = 1;
-    } else {
-        s->pos += len;
-        s->buf_ptr = s->buffer;
-        s->buf_end = s->buffer + len;
-    }
-}
-
-/* NOTE: return 0 if EOF, so you cannot use it if EOF handling is
-   necessary */
-/* XXX: put an inline version */
-int get_byte(ByteIOContext *s)
-{
-    if (s->buf_ptr < s->buf_end) {
-        return *s->buf_ptr++;
-    } else {
-        fill_buffer(s);
-        if (s->buf_ptr < s->buf_end)
-            return *s->buf_ptr++;
-        else
-            return 0;
-    }
-}
-
-/* NOTE: return URL_EOF (-1) if EOF */
-int url_fgetc(ByteIOContext *s)
-{
-    if (s->buf_ptr < s->buf_end) {
-        return *s->buf_ptr++;
-    } else {
-        fill_buffer(s);
-        if (s->buf_ptr < s->buf_end)
-            return *s->buf_ptr++;
-        else
-            return URL_EOF;
-    }
-}
-
-int get_buffer(ByteIOContext *s, unsigned char *buf, int size)
-{
-    int len, size1;
-
-    size1 = size;
-    while (size > 0) {
-        len = s->buf_end - s->buf_ptr;
-        if (len > size)
-            len = size;
-        if (len == 0) {
-            fill_buffer(s);
-            len = s->buf_end - s->buf_ptr;
-            if (len == 0)
-                break;
-        } else {
-            memcpy(buf, s->buf_ptr, len);
-            buf += len;
-            s->buf_ptr += len;
-            size -= len;
-        }
-    }
-    return size1 - size;
-}
-
-unsigned int get_le16(ByteIOContext *s)
-{
-    unsigned int val;
-    val = get_byte(s);
-    val |= get_byte(s) << 8;
-    return val;
-}
-
-unsigned int get_le32(ByteIOContext *s)
-{
-    unsigned int val;
-    val = get_byte(s);
-    val |= get_byte(s) << 8;
-    val |= get_byte(s) << 16;
-    val |= get_byte(s) << 24;
-    return val;
-}
-
-uint64_t get_le64(ByteIOContext *s)
-{
-    uint64_t val;
-    val = (uint64_t)get_le32(s);
-    val |= (uint64_t)get_le32(s) << 32;
-    return val;
-}
-
-unsigned int get_be16(ByteIOContext *s)
-{
-    unsigned int val;
-    val = get_byte(s) << 8;
-    val |= get_byte(s);
-    return val;
-}
-
-unsigned int get_be32(ByteIOContext *s)
-{
-    unsigned int val;
-    val = get_byte(s) << 24;
-    val |= get_byte(s) << 16;
-    val |= get_byte(s) << 8;
-    val |= get_byte(s);
-    return val;
-}
-
-double get_be64_double(ByteIOContext *s)
-{
-    union {
-        double d;
-        uint64_t ull;
-    } u;
-
-    u.ull = get_be64(s);
-    return u.d;
-}
-
-char *get_strz(ByteIOContext *s, char *buf, int maxlen)
-{
-    int i = 0;
-    char c;
-
-    while ((c = get_byte(s))) {
-        if (i < maxlen-1)
-            buf[i++] = c;
-    }
-    
-    buf[i] = 0; /* Ensure null terminated, but may be truncated */
-
-    return buf;
-}
-
-uint64_t get_be64(ByteIOContext *s)
-{
-    uint64_t val;
-    val = (uint64_t)get_be32(s) << 32;
-    val |= (uint64_t)get_be32(s);
-    return val;
-}
-
-/* link with avio functions */
-
-static void url_write_packet(void *opaque, uint8_t *buf, int buf_size)
-{
-    URLContext *h = opaque;
-    url_write(h, buf, buf_size);
-}
-
-static int url_read_packet(void *opaque, uint8_t *buf, int buf_size)
-{
-    URLContext *h = opaque;
-    return url_read(h, buf, buf_size);
-}
-
-static int url_seek_packet(void *opaque, int64_t offset, int whence)
-{
-    URLContext *h = opaque;
-    url_seek(h, offset, whence);
-    return 0;
-}
-
-int url_fdopen(ByteIOContext *s, URLContext *h)
-{
-    uint8_t *buffer;
-    int buffer_size, max_packet_size;
-
-    
-    max_packet_size = url_get_max_packet_size(h);
-    if (max_packet_size) {
-        buffer_size = max_packet_size; /* no need to bufferize more than one packet */
-    } else {
-        buffer_size = IO_BUFFER_SIZE;
-    }
-    buffer = av_malloc(buffer_size);
-    if (!buffer)
-        return -ENOMEM;
-
-    if (init_put_byte(s, buffer, buffer_size, 
-                      (h->flags & URL_WRONLY) != 0, h,
-                      url_read_packet, url_write_packet, url_seek_packet) < 0) {
-        av_free(buffer);
-        return -EIO;
-    }
-    s->is_streamed = h->is_streamed;
-    s->max_packet_size = max_packet_size;
-    return 0;
-}
-
-/* XXX: must be called before any I/O */
-int url_setbufsize(ByteIOContext *s, int buf_size)
-{
-    uint8_t *buffer;
-    buffer = av_malloc(buf_size);
-    if (!buffer)
-        return -ENOMEM;
-
-    av_free(s->buffer);
-    s->buffer = buffer;
-    s->buffer_size = buf_size;
-    s->buf_ptr = buffer;
-    if (!s->write_flag) 
-        s->buf_end = buffer;
-    else
-        s->buf_end = buffer + buf_size;
-    return 0;
-}
-
-/* NOTE: when opened as read/write, the buffers are only used for
-   reading */
-int url_fopen(ByteIOContext *s, const char *filename, int flags)
-{
-    URLContext *h;
-    int err;
-
-    err = url_open(&h, filename, flags);
-    if (err < 0)
-        return err;
-    err = url_fdopen(s, h);
-    if (err < 0) {
-        url_close(h);
-        return err;
-    }
-    return 0;
-}
-
-int url_fclose(ByteIOContext *s)
-{
-    URLContext *h = s->opaque;
-    
-    av_free(s->buffer);
-    memset(s, 0, sizeof(ByteIOContext));
-    return url_close(h);
-}
-
-URLContext *url_fileno(ByteIOContext *s)
-{
-    return s->opaque;
-}
-
-/* XXX: currently size is limited */
-int url_fprintf(ByteIOContext *s, const char *fmt, ...)
-{
-    va_list ap;
-    char buf[4096];
-    int ret;
-
-    va_start(ap, fmt);
-    ret = vsnprintf(buf, sizeof(buf), fmt, ap);
-    va_end(ap);
-    put_buffer(s, buf, strlen(buf));
-    return ret;
-}
-
-/* note: unlike fgets, the EOL character is not returned and a whole
-   line is parsed. return NULL if first char read was EOF */
-char *url_fgets(ByteIOContext *s, char *buf, int buf_size)
-{
-    int c;
-    char *q;
-
-    c = url_fgetc(s);
-    if (c == EOF)
-        return NULL;
-    q = buf;
-    for(;;) {
-        if (c == EOF || c == '\n')
-            break;
-        if ((q - buf) < buf_size - 1)
-            *q++ = c;
-        c = url_fgetc(s);
-    }
-    if (buf_size > 0)
-        *q = '\0';
-    return buf;
-}
-
-/* 
- * Return the maximum packet size associated to packetized buffered file
- * handle. If the file is not packetized (stream like http or file on
- * disk), then 0 is returned.
- * 
- * @param h buffered file handle
- * @return maximum packet size in bytes
- */
-int url_fget_max_packet_size(ByteIOContext *s)
-{
-    return s->max_packet_size;
-}
-
-/* buffer handling */
-int url_open_buf(ByteIOContext *s, uint8_t *buf, int buf_size, int flags)
-{
-    return init_put_byte(s, buf, buf_size, 
-                         (flags & URL_WRONLY) != 0, NULL, NULL, NULL, NULL);
-}
-
-/* return the written or read size */
-int url_close_buf(ByteIOContext *s)
-{
-    put_flush_packet(s);
-    return s->buf_ptr - s->buffer;
-}
-
-/* output in a dynamic buffer */
-
-typedef struct DynBuffer {
-    int pos, size, allocated_size;
-    uint8_t *buffer;
-    int io_buffer_size;
-    uint8_t io_buffer[1];
-} DynBuffer;
-
-static void dyn_buf_write(void *opaque, uint8_t *buf, int buf_size)
-{
-    DynBuffer *d = opaque;
-    int new_size, new_allocated_size;
-    
-    /* reallocate buffer if needed */
-    new_size = d->pos + buf_size;
-    new_allocated_size = d->allocated_size;
-    while (new_size > new_allocated_size) {
-        if (!new_allocated_size)
-            new_allocated_size = new_size;
-        else
-            new_allocated_size = (new_allocated_size * 3) / 2 + 1;    
-    }
-    
-    if (new_allocated_size > d->allocated_size) {
-        d->buffer = av_realloc(d->buffer, new_allocated_size);
-        if(d->buffer == NULL)
-             return ;
-        d->allocated_size = new_allocated_size;
-    }
-    memcpy(d->buffer + d->pos, buf, buf_size);
-    d->pos = new_size;
-    if (d->pos > d->size)
-        d->size = d->pos;
-}
-
-static void dyn_packet_buf_write(void *opaque, uint8_t *buf, int buf_size)
-{
-    unsigned char buf1[4];
-
-    /* packetized write: output the header */
-    buf1[0] = (buf_size >> 24);
-    buf1[1] = (buf_size >> 16);
-    buf1[2] = (buf_size >> 8);
-    buf1[3] = (buf_size);
-    dyn_buf_write(opaque, buf1, 4);
-
-    /* then the data */
-    dyn_buf_write(opaque, buf, buf_size);
-}
-
-static int dyn_buf_seek(void *opaque, offset_t offset, int whence)
-{
-    DynBuffer *d = opaque;
-
-    if (whence == SEEK_CUR)
-        offset += d->pos;
-    else if (whence == SEEK_END)
-        offset += d->size;
-    if (offset < 0 || offset > 0x7fffffffLL)
-        return -1;
-    d->pos = offset;
-    return 0;
-}
-
-static int url_open_dyn_buf_internal(ByteIOContext *s, int max_packet_size)
-{
-    DynBuffer *d;
-    int io_buffer_size, ret;
-    
-    if (max_packet_size) 
-        io_buffer_size = max_packet_size;
-    else
-        io_buffer_size = 1024;
-        
-    d = av_malloc(sizeof(DynBuffer) + io_buffer_size);
-    if (!d)
-        return -1;
-    d->io_buffer_size = io_buffer_size;
-    d->buffer = NULL;
-    d->pos = 0;
-    d->size = 0;
-    d->allocated_size = 0;
-    ret = init_put_byte(s, d->io_buffer, io_buffer_size, 
-                        1, d, NULL, 
-                        max_packet_size ? dyn_packet_buf_write : dyn_buf_write, 
-                        max_packet_size ? NULL : dyn_buf_seek);
-    if (ret == 0) {
-        s->max_packet_size = max_packet_size;
-    }
-    return ret;
-}
-
-/*
- * Open a write only memory stream.
- * 
- * @param s new IO context
- * @return zero if no error.
- */
-int url_open_dyn_buf(ByteIOContext *s)
-{
-    return url_open_dyn_buf_internal(s, 0);
-}
-
-/*
- * Open a write only packetized memory stream with a maximum packet
- * size of 'max_packet_size'.  The stream is stored in a memory buffer
- * with a big endian 4 byte header giving the packet size in bytes.
- * 
- * @param s new IO context
- * @param max_packet_size maximum packet size (must be > 0) 
- * @return zero if no error.
- */
-int url_open_dyn_packet_buf(ByteIOContext *s, int max_packet_size)
-{
-    if (max_packet_size <= 0)
-        return -1;
-    return url_open_dyn_buf_internal(s, max_packet_size);
-}
-
-/* 
- * Return the written size and a pointer to the buffer. The buffer
- *  must be freed with av_free(). 
- * @param s IO context
- * @param pointer to a byte buffer
- * @return the length of the byte buffer
- */
-int url_close_dyn_buf(ByteIOContext *s, uint8_t **pbuffer)
-{
-    DynBuffer *d = s->opaque;
-    int size;
-
-    put_flush_packet(s);
-
-    *pbuffer = d->buffer;
-    size = d->size;
-    av_free(d);
-    return size;
-}