C++ (Cpp) avs_get_read_ptr Examples

Example #1

File: avs_input.c Project: eric888a/L-SMASH-Works

static int read_video( lsmash_handler_t *h, int sample_number, void *buf )
{
    avs_handler_t *hp = (avs_handler_t *)h->video_private;
    int buf_linesize = MAKE_AVIUTL_PITCH( hp->vi->width * avs_bits_per_pixel( hp->vi ) );
    AVS_VideoFrame *frame = hp->func.avs_get_frame( hp->clip, sample_number );
    if( hp->func.avs_clip_get_error( hp->clip ) )
        return 0;
    hp->func.avs_bit_blt( hp->env, buf, buf_linesize, avs_get_read_ptr( frame ),
                          avs_get_pitch( frame ), avs_get_row_size( frame ), hp->vi->height );
    hp->func.avs_release_video_frame( frame );
    return avs_bmp_size( hp->vi );
}

Example #2

File: avs_input.c Project: VFR-maniac/L-SMASH-Works

static int read_video( lsmash_handler_t *h, int sample_number, void *buf )
{
    avs_handler_t *hp = (avs_handler_t *)h->video_private;
    AVS_VideoFrame *as_frame = hp->func.avs_get_frame( hp->clip, sample_number );
    if( hp->func.avs_clip_get_error( hp->clip ) )
        return 0;
    if( avs_is_interleaved( hp->vi ) )
    {
        uint8_t *read_ptr = (uint8_t *)avs_get_read_ptr( as_frame );
        int      pitch    = avs_get_pitch( as_frame );
        if( avs_is_rgb( hp->vi ) )
        {
            hp->av_frame->data    [0] = read_ptr + pitch * (hp->vi->height - 1);
            hp->av_frame->linesize[0] = -pitch;
        }
        else
        {
            hp->av_frame->data    [0] = read_ptr;
            hp->av_frame->linesize[0] = pitch;
        }
    }
    else
        for( int i = 0; i < 3; i++ )
        {
            static const int as_plane[3] = { AVS_PLANAR_Y, AVS_PLANAR_U, AVS_PLANAR_V };
            hp->av_frame->data    [i] = (uint8_t *)avs_get_read_ptr_p( as_frame, as_plane[i] );
            hp->av_frame->linesize[i] = avs_get_pitch_p( as_frame, as_plane[i] );
        }
    hp->av_frame->width       = hp->vi->width;
    hp->av_frame->height      = hp->vi->height;
    hp->av_frame->format      = as_to_av_input_pixel_format( hp->vi->pixel_type, hp->bit_depth, &hp->av_frame->width );
    hp->av_frame->color_range = AVCOL_RANGE_UNSPECIFIED;
    hp->av_frame->colorspace  = AVCOL_SPC_UNSPECIFIED;
    /* Here, update_scaler_configuration_if_needed() is required to activate the scaler. */
    if( update_scaler_configuration_if_needed( &hp->voh.scaler, NULL, hp->av_frame ) < 0 )
        return 0;
    int frame_size = convert_colorspace( &hp->voh, hp->av_frame, buf );
    hp->func.avs_release_video_frame( as_frame );
    return frame_size;
}