Esempio n. 1
0
File: image.c Progetto: BossKing/vlc
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;
}
Esempio n. 2
0
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;
}
Esempio n. 3
0
File: image.c Progetto: BossKing/vlc
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;
}