Beispiel #1
0
Datei: fake.c Projekt: Kafay/vlc
/*****************************************************************************
 * OpenDecoder: probe the decoder and return score
 *****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
    decoder_t *p_dec = (decoder_t*)p_this;
    vlc_value_t val;
    image_handler_t *p_handler;
    video_format_t fmt_in, fmt_out;
    picture_t *p_image;
    char *psz_file, *psz_chroma;
    bool b_keep_ar;
    int i_aspect = 0;

    if( p_dec->fmt_in.i_codec != VLC_FOURCC('f','a','k','e') )
    {
        return VLC_EGENERIC;
    }

    p_dec->p_sys = calloc( 1, sizeof( *p_dec->p_sys ) );
    if( !p_dec->p_sys )
        return VLC_ENOMEM;

    psz_file = var_CreateGetNonEmptyStringCommand( p_dec, "fake-file" );
    if( !psz_file )
    {
        msg_Err( p_dec, "specify a file with --fake-file=..." );
        free( p_dec->p_sys );
        return VLC_EGENERIC;
    }
    var_AddCallback( p_dec, "fake-file", FakeCallback, p_dec );

    memset( &fmt_in, 0, sizeof(fmt_in) );
    memset( &fmt_out, 0, sizeof(fmt_out) );

    val.i_int = var_CreateGetIntegerCommand( p_dec, "fake-file-reload" );
    if( val.i_int > 0)
    {
        p_dec->p_sys->b_reload = true;
        p_dec->p_sys->i_reload = (mtime_t)(val.i_int * 1000000);
        p_dec->p_sys->i_next   = (mtime_t)(p_dec->p_sys->i_reload + mdate());
    }
    var_AddCallback( p_dec, "fake-file-reload", FakeCallback , p_dec );

    psz_chroma = var_CreateGetString( p_dec, "fake-chroma" );
    fmt_out.i_chroma = vlc_fourcc_GetCodecFromString( VIDEO_ES, psz_chroma );
    if( !fmt_out.i_chroma )
    {
        msg_Warn( p_dec, "Invalid chroma (%s). Using I420.", psz_chroma );
        fmt_out.i_chroma = VLC_CODEC_I420;
    }
    free( psz_chroma );

    var_Create( p_dec, "fake-keep-ar", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Get( p_dec, "fake-keep-ar", &val );
    b_keep_ar = val.b_bool;

    var_Create( p_dec, "fake-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_dec, "fake-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_dec, "fake-aspect-ratio",
                VLC_VAR_STRING | VLC_VAR_DOINHERIT );

    var_Get( p_dec, "fake-aspect-ratio", &val );
    if ( val.psz_string )
    {
        char *psz_parser = strchr( val.psz_string, ':' );

        if( psz_parser )
        {
            *psz_parser++ = '\0';
            i_aspect = atoi( val.psz_string )
                                   * VOUT_ASPECT_FACTOR / atoi( psz_parser );
        }
        free( val.psz_string );
    }

    if ( !b_keep_ar )
    {
        var_Get( p_dec, "fake-width", &val );
        fmt_out.i_width = val.i_int;
        var_Get( p_dec, "fake-height", &val );
        fmt_out.i_height = val.i_int;
    }

    p_handler = image_HandlerCreate( p_dec );
    p_image = image_ReadUrl( p_handler, psz_file, &fmt_in, &fmt_out );
    image_HandlerDelete( p_handler );

    if ( p_image == NULL )
    {
        msg_Err( p_dec, "unable to read image file %s", psz_file );
        free( psz_file );
        free( p_dec->p_sys );
        return VLC_EGENERIC;
    }
    msg_Dbg( p_dec, "file %s loaded successfully", psz_file );

    free( psz_file );

    if ( b_keep_ar )
    {
        picture_t *p_old = p_image;
        int i_width, i_height;

        var_Get( p_dec, "fake-width", &val );
        i_width = val.i_int;
        var_Get( p_dec, "fake-height", &val );
        i_height = val.i_int;

        if ( i_width && i_height )
        {
            int i_image_ar = fmt_out.i_width * VOUT_ASPECT_FACTOR
                              / fmt_out.i_height;
            int i_region_ar = i_width * VOUT_ASPECT_FACTOR / i_height;
            fmt_in = fmt_out;

            if ( i_aspect == i_image_ar )
            {
                fmt_out.i_width = i_width;
                fmt_out.i_height = i_height;
            }
            else if ( i_image_ar > i_region_ar )
            {
                fmt_out.i_width = i_width;
                fmt_out.i_height = i_width * VOUT_ASPECT_FACTOR
                                    / i_image_ar;
                i_aspect = i_image_ar;
            }
            else
            {
                fmt_out.i_height = i_height;
                fmt_out.i_width = i_height * i_image_ar
                                    / VOUT_ASPECT_FACTOR;
                i_aspect = i_image_ar;
            }

            p_handler = image_HandlerCreate( p_dec );
            p_image = image_Convert( p_handler, p_old, &fmt_in, &fmt_out );
            image_HandlerDelete( p_handler );

            if ( p_image == NULL )
            {
                msg_Warn( p_dec, "couldn't load resizing module" );
                p_image = p_old;
                fmt_out = fmt_in;
            }
            else
            {
                picture_Release( p_old );
            }
        }
    }

    if ( i_aspect )
    {
        fmt_out.i_aspect = i_aspect;
    }
    else
    {
        fmt_out.i_aspect = fmt_out.i_width
                            * VOUT_ASPECT_FACTOR / fmt_out.i_height;
    }

    var_Create( p_dec, "fake-deinterlace", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Get( p_dec, "fake-deinterlace", &val );
    if ( val.b_bool )
    {
        picture_t *p_old = p_image;

        var_Create( p_dec, "fake-deinterlace-module",
                    VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_dec, "fake-deinterlace-module", &val );

        p_handler = image_HandlerCreate( p_dec );
        p_image = image_Filter( p_handler, p_old, &fmt_out, val.psz_string );
        image_HandlerDelete( p_handler );
        free( val.psz_string );

        if ( p_image == NULL )
        {
            msg_Warn( p_dec, "couldn't load deinterlace module" );
            p_image = p_old;
        }
        else
        {
            picture_Release( p_old );
        }
    }

    /* Set output properties */
    p_dec->fmt_out.i_cat = VIDEO_ES;
    p_dec->fmt_out.i_codec = fmt_out.i_chroma;
    p_dec->fmt_out.video = fmt_out;

    /* Set callbacks */
    p_dec->pf_decode_video = DecodeBlock;

    p_dec->p_sys->p_image = p_image;
    vlc_mutex_init( &p_dec->p_sys->lock );

    return VLC_SUCCESS;
}
Beispiel #2
0
/*****************************************************************************
 * Create: allocates Transform video thread output method
 *****************************************************************************
 * This function allocates and initializes a Transform vout method.
 *****************************************************************************/
static int Create( vlc_object_t *p_this )
{
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
    char *psz_method;

    /* Allocate structure */
    p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
    if( p_vout->p_sys == NULL )
        return VLC_ENOMEM;

    p_vout->pf_init = Init;
    p_vout->pf_end = End;
    p_vout->pf_manage = NULL;
    p_vout->pf_render = Render;
    p_vout->pf_display = NULL;
    p_vout->pf_control = Control;

    config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
                           p_vout->p_cfg );

    /* Look what method was requested */
    psz_method = var_CreateGetNonEmptyStringCommand( p_vout, "transform-type" );

    switch( p_vout->fmt_in.i_chroma )
    {
        CASE_PLANAR_YUV_SQUARE
        case VLC_CODEC_GREY:
            p_vout->p_sys->pf_filter = FilterPlanar;
            break;

        case VLC_CODEC_I422:
        case VLC_CODEC_J422:
            p_vout->p_sys->pf_filter = FilterI422;
            break;

        CASE_PACKED_YUV_422
            p_vout->p_sys->pf_filter = FilterYUYV;
            break;

        default:
            msg_Err( p_vout, "Unsupported chroma" );
            free( p_vout->p_sys );
            return VLC_EGENERIC;
    }

    if( psz_method == NULL )
    {
        msg_Err( p_vout, "configuration variable %s empty", "transform-type" );
        msg_Err( p_vout, "no valid transform mode provided, using '90'" );
        p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
        p_vout->p_sys->b_rotation = 1;
    }
    else
    {
        if( !strcmp( psz_method, "hflip" ) )
        {
            p_vout->p_sys->i_mode = TRANSFORM_MODE_HFLIP;
            p_vout->p_sys->b_rotation = 0;
        }
        else if( !strcmp( psz_method, "vflip" ) )
        {
            p_vout->p_sys->i_mode = TRANSFORM_MODE_VFLIP;
            p_vout->p_sys->b_rotation = 0;
        }
        else if( !strcmp( psz_method, "90" ) )
        {
            p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
            p_vout->p_sys->b_rotation = 1;
        }
        else if( !strcmp( psz_method, "180" ) )
        {
            p_vout->p_sys->i_mode = TRANSFORM_MODE_180;
            p_vout->p_sys->b_rotation = 0;
        }
        else if( !strcmp( psz_method, "270" ) )
        {
            p_vout->p_sys->i_mode = TRANSFORM_MODE_270;
            p_vout->p_sys->b_rotation = 1;
        }
        else
        {
            msg_Err( p_vout, "no valid transform mode provided, using '90'" );
            p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
            p_vout->p_sys->b_rotation = 1;
        }

        free( psz_method );
    }

    return VLC_SUCCESS;
}