static picture_t *ImageReadUrl( image_handler_t *p_image, const char *psz_url,
video_format_t *p_fmt_in,
video_format_t *p_fmt_out )
{
block_t *p_block;
picture_t *p_pic;
stream_t *p_stream = NULL;
uint64_t i_size;
p_stream = vlc_stream_NewMRL( p_image->p_parent, psz_url );
if( !p_stream )
{
msg_Dbg( p_image->p_parent, "could not open %s for reading",
psz_url );
return NULL;
}
if( vlc_stream_GetSize( p_stream, &i_size ) || i_size > SSIZE_MAX )
{
msg_Dbg( p_image->p_parent, "could not read %s", psz_url );
goto error;
}
p_block = vlc_stream_Block( p_stream, i_size );
if( p_block == NULL )
goto error;
if( !p_fmt_in->i_chroma )
{
char *psz_mime = stream_ContentType( p_stream );
if( psz_mime != NULL )
{
p_fmt_in->i_chroma = image_Mime2Fourcc( psz_mime );
free( psz_mime );
}
}
vlc_stream_Delete( p_stream );
if( !p_fmt_in->i_chroma )
{
/* Try to guess format from file name */
p_fmt_in->i_chroma = image_Ext2Fourcc( psz_url );
}
p_pic = ImageRead( p_image, p_block, p_fmt_in, p_fmt_out );
return p_pic;
error:
vlc_stream_Delete( p_stream );
return NULL;
}
static picture_t *ImageReadUrl( image_handler_t *p_image, const char *psz_url,
video_format_t *p_fmt_in,
video_format_t *p_fmt_out )
{
block_t *p_block;
picture_t *p_pic;
stream_t *p_stream = NULL;
int i_size;
p_stream = stream_UrlNew( p_image->p_parent, psz_url );
if( !p_stream )
{
msg_Dbg( p_image->p_parent, "could not open %s for reading",
psz_url );
return NULL;
}
i_size = stream_Size( p_stream );
p_block = block_New( p_image->p_parent, i_size );
stream_Read( p_stream, p_block->p_buffer, i_size );
if( !p_fmt_in->i_chroma )
{
char *psz_mime = NULL;
stream_Control( p_stream, STREAM_GET_CONTENT_TYPE, &psz_mime );
if( psz_mime )
p_fmt_in->i_chroma = image_Mime2Fourcc( psz_mime );
free( psz_mime );
}
stream_Delete( p_stream );
if( !p_fmt_in->i_chroma )
{
/* Try to guess format from file name */
p_fmt_in->i_chroma = image_Ext2Fourcc( psz_url );
}
p_pic = ImageRead( p_image, p_block, p_fmt_in, p_fmt_out );
return p_pic;
}
static int ImageWriteUrl( image_handler_t *p_image, picture_t *p_pic,
video_format_t *p_fmt_in, video_format_t *p_fmt_out,
const char *psz_url )
{
block_t *p_block;
FILE *file;
if( !p_fmt_out->i_chroma )
{
/* Try to guess format from file name */
p_fmt_out->i_chroma = image_Ext2Fourcc( psz_url );
}
file = vlc_fopen( psz_url, "wb" );
if( !file )
{
msg_Err( p_image->p_parent, "%s: %s", psz_url, vlc_strerror_c(errno) );
return VLC_EGENERIC;
}
p_block = ImageWrite( p_image, p_pic, p_fmt_in, p_fmt_out );
int err = 0;
if( p_block )
{
if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, file ) != 1 )
err = errno;
block_Release( p_block );
}
if( fclose( file ) && !err )
err = errno;
if( err )
{
errno = err;
msg_Err( p_image->p_parent, "%s: %s", psz_url, vlc_strerror_c(errno) );
}
return err ? VLC_EGENERIC : VLC_SUCCESS;
}