static int picture_alloc( cli_pic_t *pic, hnd_t handle, int csp, int width, int height )
{
if( x264_cli_pic_alloc( pic, X264_CSP_NONE, width, height ) )
return -1;
pic->img.csp = csp;
const x264_cli_csp_t *cli_csp = x264_cli_get_csp( csp );
if( cli_csp )
pic->img.planes = cli_csp->planes;
#if HAVE_SWSCALE
else if( csp == (AV_PIX_FMT_YUV411P | X264_CSP_OTHER) )
pic->img.planes = 3;
else
pic->img.planes = 1; //y8 and yuy2 are one plane
#endif
return 0;
}
static int init( hnd_t *handle, cli_vid_filter_t *filter, video_info_t *info, x264_param_t *param, char *opt_string )
{
FAIL_IF_ERROR( x264_cli_csp_is_invalid( info->csp ), "invalid csp %d\n", info->csp );
crop_hnd_t *h = calloc( 1, sizeof(crop_hnd_t) );
if( !h )
return -1;
h->csp = x264_cli_get_csp( info->csp );
static const char * const optlist[] = { "left", "top", "right", "bottom", NULL };
char **opts = x264_split_options( opt_string, optlist );
if( !opts )
return -1;
int err = handle_opts( h, info, opts, optlist );
free( opts );
if( err )
return -1;
h->dims[2] = info->width - h->dims[0] - h->dims[2];
h->dims[3] = info->height - h->dims[1] - h->dims[3];
FAIL_IF_ERROR( h->dims[2] <= 0 || h->dims[3] <= 0, "invalid output resolution %dx%d\n", h->dims[2], h->dims[3] );
if( info->width != h->dims[2] || info->height != h->dims[3] )
x264_cli_log( NAME, X264_LOG_INFO, "cropping to %dx%d\n", h->dims[2], h->dims[3] );
else
{
/* do nothing as the user supplied 0s for all the values */
free( h );
return 0;
}
/* done initializing, overwrite values */
info->width = h->dims[2];
info->height = h->dims[3];
h->prev_filter = *filter;
h->prev_hnd = *handle;
*handle = h;
*filter = crop_filter;
return 0;
}
static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
{
raw_hnd_t *h = calloc( 1, sizeof(raw_hnd_t) );
if( !h )
return -1;
if( !opt->resolution )
{
/* try to parse the file name */
for( char *p = psz_filename; *p; p++ )
if( *p >= '0' && *p <= '9' && sscanf( p, "%dx%d", &info->width, &info->height ) == 2 )
break;
}
else
sscanf( opt->resolution, "%dx%d", &info->width, &info->height );
FAIL_IF_ERROR( !info->width || !info->height, "raw input requires a resolution.\n" )
if( opt->colorspace )
{
for( info->csp = X264_CSP_CLI_MAX-1; info->csp > X264_CSP_NONE; info->csp-- )
{
if( x264_cli_csps[info->csp].name && !strcasecmp( x264_cli_csps[info->csp].name, opt->colorspace ) )
break;
}
FAIL_IF_ERROR( info->csp == X264_CSP_NONE, "unsupported colorspace `%s'\n", opt->colorspace );
}
else /* default */
info->csp = X264_CSP_I420;
h->bit_depth = opt->bit_depth;
FAIL_IF_ERROR( h->bit_depth < 8 || h->bit_depth > 16, "unsupported bit depth `%d'\n", h->bit_depth );
if( h->bit_depth > 8 )
info->csp |= X264_CSP_HIGH_DEPTH;
if( !strcmp( psz_filename, "-" ) )
h->fh = stdin;
else
h->fh = x264_fopen( psz_filename, "rb" );
if( h->fh == NULL )
return -1;
info->thread_safe = 1;
info->num_frames = 0;
info->vfr = 0;
const x264_cli_csp_t *csp = x264_cli_get_csp( info->csp );
for( int i = 0; i < csp->planes; i++ )
{
h->plane_size[i] = x264_cli_pic_plane_size( info->csp, info->width, info->height, i );
h->frame_size += h->plane_size[i];
/* x264_cli_pic_plane_size returns the size in bytes, we need the value in pixels from here on */
h->plane_size[i] /= x264_cli_csp_depth_factor( info->csp );
}
if( x264_is_regular_file( h->fh ) )
{
fseek( h->fh, 0, SEEK_END );
uint64_t size = ftell( h->fh );
fseek( h->fh, 0, SEEK_SET );
info->num_frames = size / h->frame_size;
/* Attempt to use memory-mapped input frames if possible */
if( !(h->bit_depth & 7) )
h->use_mmap = !x264_cli_mmap_init( &h->mmap, h->fh );
}
*p_handle = h;
return 0;
}
static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
{
y4m_hnd_t *h = malloc( sizeof(y4m_hnd_t) );
int i;
uint32_t n, d;
char header[MAX_YUV4_HEADER+10];
char *tokend, *header_end;
int colorspace = X264_CSP_NONE;
int alt_colorspace = X264_CSP_NONE;
int alt_bit_depth = 8;
if( !h )
return -1;
h->next_frame = 0;
info->vfr = 0;
if( !strcmp( psz_filename, "-" ) )
h->fh = stdin;
else
h->fh = fopen(psz_filename, "rb");
if( h->fh == NULL )
return -1;
h->frame_header_len = strlen( Y4M_FRAME_MAGIC )+1;
/* Read header */
for( i = 0; i < MAX_YUV4_HEADER; i++ )
{
header[i] = fgetc( h->fh );
if( header[i] == '\n' )
{
/* Add a space after last option. Makes parsing "444" vs
"444alpha" easier. */
header[i+1] = 0x20;
header[i+2] = 0;
break;
}
}
if( i == MAX_YUV4_HEADER || strncmp( header, Y4M_MAGIC, strlen( Y4M_MAGIC ) ) )
return -1;
/* Scan properties */
header_end = &header[i+1]; /* Include space */
h->seq_header_len = i+1;
for( char *tokstart = &header[strlen( Y4M_MAGIC )+1]; tokstart < header_end; tokstart++ )
{
if( *tokstart == 0x20 )
continue;
switch( *tokstart++ )
{
case 'W': /* Width. Required. */
info->width = strtol( tokstart, &tokend, 10 );
tokstart=tokend;
break;
case 'H': /* Height. Required. */
info->height = strtol( tokstart, &tokend, 10 );
tokstart=tokend;
break;
case 'C': /* Color space */
colorspace = parse_csp_and_depth( tokstart, &h->bit_depth );
tokstart = strchr( tokstart, 0x20 );
break;
case 'I': /* Interlace type */
switch( *tokstart++ )
{
case 't':
info->interlaced = 1;
info->tff = 1;
break;
case 'b':
info->interlaced = 1;
info->tff = 0;
break;
case 'm':
info->interlaced = 1;
break;
//case '?':
//case 'p':
default:
break;
}
break;
case 'F': /* Frame rate - 0:0 if unknown */
if( sscanf( tokstart, "%u:%u", &n, &d ) == 2 && n && d )
{
x264_reduce_fraction( &n, &d );
info->fps_num = n;
info->fps_den = d;
}
tokstart = strchr( tokstart, 0x20 );
break;
case 'A': /* Pixel aspect - 0:0 if unknown */
/* Don't override the aspect ratio if sar has been explicitly set on the commandline. */
if( sscanf( tokstart, "%u:%u", &n, &d ) == 2 && n && d )
{
x264_reduce_fraction( &n, &d );
info->sar_width = n;
info->sar_height = d;
}
tokstart = strchr( tokstart, 0x20 );
break;
case 'X': /* Vendor extensions */
if( !strncmp( "YSCSS=", tokstart, 6 ) )
{
/* Older nonstandard pixel format representation */
tokstart += 6;
alt_colorspace = parse_csp_and_depth( tokstart, &alt_bit_depth );
}
tokstart = strchr( tokstart, 0x20 );
break;
}
}
if( colorspace == X264_CSP_NONE )
{
colorspace = alt_colorspace;
h->bit_depth = alt_bit_depth;
}
// default to 8bit 4:2:0 if nothing is specified
if( colorspace == X264_CSP_NONE )
{
colorspace = X264_CSP_I420;
h->bit_depth = 8;
}
FAIL_IF_ERROR( colorspace <= X264_CSP_NONE || colorspace >= X264_CSP_MAX, "colorspace unhandled\n" )
FAIL_IF_ERROR( h->bit_depth < 8 || h->bit_depth > 16, "unsupported bit depth `%d'\n", h->bit_depth );
info->thread_safe = 1;
info->num_frames = 0;
info->csp = colorspace;
h->frame_size = h->frame_header_len;
if( h->bit_depth > 8 )
info->csp |= X264_CSP_HIGH_DEPTH;
const x264_cli_csp_t *csp = x264_cli_get_csp( info->csp );
for( i = 0; i < csp->planes; i++ )
{
h->plane_size[i] = x264_cli_pic_plane_size( info->csp, info->width, info->height, i );
h->frame_size += h->plane_size[i];
/* x264_cli_pic_plane_size returns the size in bytes, we need the value in pixels from here on */
h->plane_size[i] /= x264_cli_csp_depth_factor( info->csp );
}
/* Most common case: frame_header = "FRAME" */
if( x264_is_regular_file( h->fh ) )
{
uint64_t init_pos = ftell( h->fh );
fseek( h->fh, 0, SEEK_END );
uint64_t i_size = ftell( h->fh );
fseek( h->fh, init_pos, SEEK_SET );
info->num_frames = (i_size - h->seq_header_len) / h->frame_size;
}
*p_handle = h;
return 0;
}
