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vlc-1.1
Commit ecc787cd authored by Antoine Cellerier's avatar Antoine Cellerier
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Simplify scale and chroma conversion code a lot. Remove native croping,... 

Simplify scale and chroma conversion code a lot. Remove native croping, padding and 'canvassing' support for transcode. Those will be availble through transcode's vfilter chain in the near future.
parent b28eb687
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Showing with 19 additions and 349 deletions
modules/stream_out/transcode.c
View file @ ecc787cd
......@@ -89,43 +89,6 @@
"Video filters will be applied to the video streams (after overlays " \
"are applied). You must enter a comma-separated list of filters." )
#define CROPTOP_TEXT N_("Video crop (top)")
#define CROPTOP_LONGTEXT N_( \
"Number of pixels to crop at the top of the video." )
#define CROPLEFT_TEXT N_("Video crop (left)")
#define CROPLEFT_LONGTEXT N_( \
"Number of pixels to crop at the left of the video." )
#define CROPBOTTOM_TEXT N_("Video crop (bottom)")
#define CROPBOTTOM_LONGTEXT N_( \
"Number of pixels to crop at the bottom of the video." )
#define CROPRIGHT_TEXT N_("Video crop (right)")
#define CROPRIGHT_LONGTEXT N_( \
"Number of pixels to crop at the right of the video." )
#define PADDTOP_TEXT N_("Video padding (top)")
#define PADDTOP_LONGTEXT N_( \
"Size of the black border to add at the top of the video." )
#define PADDLEFT_TEXT N_("Video padding (left)")
#define PADDLEFT_LONGTEXT N_( \
"Size of the black border to add at the left of the video." )
#define PADDBOTTOM_TEXT N_("Video padding (bottom)")
#define PADDBOTTOM_LONGTEXT N_( \
"Size of the black border to add at the bottom of the video." )
#define PADDRIGHT_TEXT N_("Video padding (right)")
#define PADDRIGHT_LONGTEXT N_( \
"Size of the black border to add at the right of the video." )
#define CANVAS_WIDTH_TEXT N_("Video canvas width")
#define CANVAS_WIDTH_LONGTEXT N_( \
"This will automatically crod and pad the video to a specified width." )
#define CANVAS_HEIGHT_TEXT N_("Video canvas height")
#define CANVAS_HEIGHT_LONGTEXT N_( \
"This will automatically crod and pad the video to a specified height." )
#define CANVAS_ASPECT_TEXT N_("Video canvas aspect ratio")
#define CANVAS_ASPECT_LONGTEXT N_( \
"This sets aspect (like 4:3) of the video canvas and letterbox the video "\
"accordingly." )
#define AENC_TEXT N_("Audio encoder")
#define AENC_LONGTEXT N_( \
"This is the audio encoder module that will be used (and its associated "\
......@@ -232,31 +195,6 @@ vlc_module_begin();
NULL, NULL,
VFILTER_TEXT, VFILTER_LONGTEXT, false );
add_integer( SOUT_CFG_PREFIX "croptop", 0, NULL, CROPTOP_TEXT,
CROPTOP_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "cropleft", 0, NULL, CROPLEFT_TEXT,
CROPLEFT_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "cropbottom", 0, NULL, CROPBOTTOM_TEXT,
CROPBOTTOM_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "cropright", 0, NULL, CROPRIGHT_TEXT,
CROPRIGHT_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "paddtop", 0, NULL, PADDTOP_TEXT,
PADDTOP_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "paddleft", 0, NULL, PADDLEFT_TEXT,
PADDLEFT_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "paddbottom", 0, NULL, PADDBOTTOM_TEXT,
PADDBOTTOM_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "paddright", 0, NULL, PADDRIGHT_TEXT,
PADDRIGHT_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "canvas-width", 0, NULL, CANVAS_WIDTH_TEXT,
CANVAS_WIDTH_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "canvas-height", 0, NULL, CANVAS_HEIGHT_TEXT,
CANVAS_HEIGHT_LONGTEXT, true );
add_string( SOUT_CFG_PREFIX "canvas-aspect", NULL, NULL, CANVAS_ASPECT_TEXT,
CANVAS_ASPECT_LONGTEXT, false );
set_section( N_("Audio"), NULL );
add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
AENC_LONGTEXT, false );
......@@ -298,9 +236,7 @@ vlc_module_begin();
vlc_module_end();
static const char *const ppsz_sout_options[] = {
"venc", "vcodec", "vb", "croptop", "cropbottom", "cropleft", "cropright",
"paddtop", "paddbottom", "paddleft", "paddright",
"canvas-width", "canvas-height", "canvas-aspect",
"venc", "vcodec", "vb",
"scale", "fps", "width", "height", "vfilter", "deinterlace",
"deinterlace-module", "threads", "hurry-up", "aenc", "acodec", "ab",
"afilter", "samplerate", "channels", "senc", "scodec", "soverlay",
......@@ -409,31 +345,6 @@ struct sout_stream_sys_t
config_chain_t *p_vfilters_cfg[TRANSCODE_FILTERS];
int i_vfilters;
int i_crop_top;
int i_crop_bottom;
int i_crop_right;
int i_crop_left;
int i_padd_top;
int i_padd_bottom;
int i_padd_right;
int i_padd_left;
int i_canvas_width;
int i_canvas_height;
int i_canvas_aspect;
/* Video, calculated */
int i_src_x_offset;
int i_src_y_offset;
int i_crop_width;
int i_crop_height;
int i_dst_x_offset;
int i_dst_y_offset;
int i_nopadd_width;
int i_nopadd_height;
/* SPU */
vlc_fourcc_t i_scodec; /* codec spu (0 if not transcode) */
char *psz_senc;
......@@ -646,45 +557,6 @@ static int Open( vlc_object_t *p_this )
}
free( val.psz_string );
var_Get( p_stream, SOUT_CFG_PREFIX "croptop", &val );
p_sys->i_crop_top = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "cropbottom", &val );
p_sys->i_crop_bottom = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "cropleft", &val );
p_sys->i_crop_left = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "cropright", &val );
p_sys->i_crop_right = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "paddtop", &val );
p_sys->i_padd_top = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "paddbottom", &val );
p_sys->i_padd_bottom = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "paddleft", &val );
p_sys->i_padd_left = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "paddright", &val );
p_sys->i_padd_right = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "canvas-width", &val );
p_sys->i_canvas_width = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "canvas-height", &val );
p_sys->i_canvas_height = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "canvas-aspect", &val );
p_sys->i_canvas_aspect = 0;
if( val.psz_string && *val.psz_string )
{
char *psz_parser = strchr( val.psz_string, ':' );
if( psz_parser )
{
*psz_parser++ = '\0';
p_sys->i_canvas_aspect = atoi( val.psz_string ) *
VOUT_ASPECT_FACTOR / atoi( psz_parser );
}
else msg_Warn( p_stream, "bad aspect ratio %s", val.psz_string );
}
free( val.psz_string );
var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
p_sys->i_threads = val.i_int;
var_Get( p_stream, SOUT_CFG_PREFIX "high-priority", &val );
......@@ -1822,15 +1694,11 @@ static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
/* The dimensions will be set properly later on.
* Just put sensible values so we can test an encoder is available. */
id->p_encoder->fmt_in.video.i_width =
id->p_encoder->fmt_out.video.i_width ?
id->p_encoder->fmt_out.video.i_width :
id->p_decoder->fmt_in.video.i_width ?
id->p_decoder->fmt_in.video.i_width : 16;
id->p_encoder->fmt_out.video.i_width ?:
id->p_decoder->fmt_in.video.i_width ?: 16;
id->p_encoder->fmt_in.video.i_height =
id->p_encoder->fmt_out.video.i_height ?
id->p_encoder->fmt_out.video.i_height :
id->p_decoder->fmt_in.video.i_height ?
id->p_decoder->fmt_in.video.i_height : 16;
id->p_encoder->fmt_out.video.i_height ?:
id->p_decoder->fmt_in.video.i_height ?: 16;
id->p_encoder->fmt_in.video.i_frame_rate = ENC_FRAMERATE;
id->p_encoder->fmt_in.video.i_frame_rate_base = ENC_FRAMERATE_BASE;
......@@ -1890,7 +1758,7 @@ static int transcode_video_encoder_open( sout_stream_t *p_stream,
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
/* Calculate scaling, padding, cropping etc.
/* Calculate scaling
* width/height of source */
int i_src_width = id->p_decoder->fmt_out.video.i_width;
int i_src_height = id->p_decoder->fmt_out.video.i_height;
......@@ -1914,14 +1782,6 @@ static int transcode_video_encoder_open( sout_stream_t *p_stream,
f_aspect = f_aspect * i_src_height / i_src_width;
msg_Dbg( p_stream, "source pixel aspect is %f:1", f_aspect );
/* width/height after cropping */
p_sys->i_src_x_offset = p_sys->i_crop_left & ~1;
p_sys->i_src_y_offset = p_sys->i_crop_top & ~1;
p_sys->i_crop_width = i_src_width - ( p_sys->i_crop_left & ~1 ) -
( p_sys->i_crop_right & ~1 );
p_sys->i_crop_height = i_src_height - ( p_sys->i_crop_top & ~1 ) -
( p_sys->i_crop_bottom & ~1 );
/* Calculate scaling factor for specified parameters */
if( id->p_encoder->fmt_out.video.i_width <= 0 &&
id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
......@@ -1947,152 +1807,49 @@ static int transcode_video_encoder_open( sout_stream_t *p_stream,
id->p_encoder->fmt_out.video.i_height <= 0 )
{
/* Only width specified */
f_scale_width = (float)id->p_encoder->fmt_out.video.i_width /
p_sys->i_crop_width;
f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
f_scale_height = f_scale_width;
}
else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
id->p_encoder->fmt_out.video.i_height > 0 )
{
/* Only height specified */
f_scale_height = (float)id->p_encoder->fmt_out.video.i_height /
p_sys->i_crop_height;
f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
f_scale_width = f_scale_height;
}
else if( id->p_encoder->fmt_out.video.i_width > 0 &&
id->p_encoder->fmt_out.video.i_height > 0 )
{
/* Width and height specified */
f_scale_width = (float)id->p_encoder->fmt_out.video.i_width
/ p_sys->i_crop_width;
f_scale_height = (float)id->p_encoder->fmt_out.video.i_height
/ p_sys->i_crop_height;
f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
}
/* check maxwidth and maxheight
* note: maxwidth and maxheight currently does not handle
* canvas and padding, just scaling and cropping.
*/
if( p_sys->i_maxwidth && f_scale_width > (float)p_sys->i_maxwidth /
p_sys->i_crop_width )
i_src_width )
{
f_scale_width = (float)p_sys->i_maxwidth / p_sys->i_crop_width;
f_scale_width = (float)p_sys->i_maxwidth / i_src_width;
}
if( p_sys->i_maxheight && f_scale_height > (float)p_sys->i_maxheight /
p_sys->i_crop_height )
i_src_height )
{
f_scale_height = (float)p_sys->i_maxheight / p_sys->i_crop_height;
f_scale_height = (float)p_sys->i_maxheight / i_src_height;
}
/* Change aspect ratio from source pixel to scaled pixel */
f_aspect = f_aspect * f_scale_height / f_scale_width;
msg_Dbg( p_stream, "scaled pixel aspect is %f:1", f_aspect );
/* Correct scaling for target aspect ratio
* Shrink video if necessary
*/
if ( p_sys->i_canvas_aspect > 0 )
{
float f_target_aspect = (float)p_sys->i_canvas_aspect /
VOUT_ASPECT_FACTOR;
if( p_sys->i_canvas_width > 0 && p_sys->i_canvas_height > 0)
{
/* Calculate pixel aspect of canvas */
f_target_aspect = f_target_aspect / p_sys->i_canvas_width *
p_sys->i_canvas_height;
}
if( f_target_aspect > f_aspect )
{
/* Reduce width scale to increase aspect */
f_scale_width = f_scale_width * f_aspect / f_target_aspect;
}
else
{
/* Reduce height scale to decrease aspect */
f_scale_height = f_scale_height * f_target_aspect / f_aspect;
}
f_aspect = f_target_aspect;
msg_Dbg( p_stream, "canvas scaled pixel aspect is %f:1", f_aspect );
}
/* f_scale_width and f_scale_height are now final */
/* Calculate width, height from scaling
* Make sure its multiple of 2
*/
i_dst_width = 2 * (int)( p_sys->i_crop_width * f_scale_width / 2 + 0.5 );
i_dst_height = 2 *
(int)( p_sys->i_crop_height * f_scale_height / 2 + 0.5 );
p_sys->i_nopadd_width = i_dst_width;
p_sys->i_nopadd_height = i_dst_height;
p_sys->i_dst_x_offset = 0;
p_sys->i_dst_y_offset = 0;
/* Handle canvas and padding */
if( p_sys->i_canvas_width <= 0 )
{
/* No canvas width set, add explicit padding border */
i_dst_width = p_sys->i_nopadd_width + ( p_sys->i_padd_left & ~1 ) +
( p_sys->i_padd_right & ~1 );
p_sys->i_dst_x_offset = ( p_sys->i_padd_left & ~1 );
}
else
{
/* Canvas set, check if we have to padd or crop */
if( p_sys->i_canvas_width < p_sys->i_nopadd_width )
{
/* need to crop more, but keep same scaling */
int i_crop = 2 * (int)( ( p_sys->i_canvas_width & ~1 ) /
f_scale_width / 2 + 0.5 );
p_sys->i_src_x_offset += ( ( p_sys->i_crop_width - i_crop ) / 2 )
& ~1;
p_sys->i_crop_width = i_crop;
i_dst_width = p_sys->i_canvas_width & ~1;
p_sys->i_nopadd_width = i_dst_width;
}
else if( p_sys->i_canvas_width > p_sys->i_nopadd_width )
{
/* need to padd */
i_dst_width = p_sys->i_canvas_width & ~1;
p_sys->i_dst_x_offset = ( i_dst_width - p_sys->i_nopadd_width )/2;
p_sys->i_dst_x_offset = p_sys->i_dst_x_offset & ~1;
}
}
if( p_sys->i_canvas_height <= 0 )
{
/* No canvas set, add padding border */
i_dst_height = p_sys->i_nopadd_height + ( p_sys->i_padd_top & ~1 ) +
( p_sys->i_padd_bottom & ~1 );
p_sys->i_dst_y_offset = ( p_sys->i_padd_top & ~1 );
}
else
{
/* Canvas set, check if we have to padd or crop */
if( p_sys->i_canvas_height < p_sys->i_nopadd_height )
{
/* need to crop more, but keep same scaling */
int i_crop = 2 * (int)( ( p_sys->i_canvas_height & ~1 ) /
f_scale_height / 2 + 0.5 );
p_sys->i_src_y_offset += ( ( p_sys->i_crop_height - i_crop ) / 2 )
& ~1;
p_sys->i_crop_height = i_crop;
i_dst_height = p_sys->i_canvas_height & ~1;
p_sys->i_nopadd_height = i_dst_height;
}
else if( p_sys->i_canvas_height > p_sys->i_nopadd_height )
{
/* need to padd */
i_dst_height = p_sys->i_canvas_height & ~1;
p_sys->i_dst_y_offset = ( i_dst_height - p_sys->i_nopadd_height )
/2;
p_sys->i_dst_y_offset = p_sys->i_dst_y_offset & ~1;
}
}
i_dst_width = 2 * (int)(f_scale_width*i_src_width/2+0.5);
i_dst_height = 2 * (int)(f_scale_height*i_src_height/2+0.5);
/* Change aspect ratio from scaled pixel to output frame */
f_aspect = f_aspect * i_dst_width / i_dst_height;
......@@ -2104,11 +1861,8 @@ static int transcode_video_encoder_open( sout_stream_t *p_stream,
id->p_encoder->fmt_in.video.i_width = i_dst_width;
id->p_encoder->fmt_in.video.i_height = i_dst_height;
msg_Dbg( p_stream, "source %ix%i, crop %ix%i, "
"destination %ix%i, padding %ix%i",
msg_Dbg( p_stream, "source %ix%i, destination %ix%i",
i_src_width, i_src_height,
p_sys->i_crop_width, p_sys->i_crop_height,
p_sys->i_nopadd_width, p_sys->i_nopadd_height,
i_dst_width, i_dst_height
);
......@@ -2338,90 +2092,7 @@ static int transcode_video_process( sout_stream_t *p_stream,
id->pp_filter[id->i_filter] =
transcode_video_filter_new( p_stream,
&id->p_decoder->fmt_out, &id->p_encoder->fmt_in,
/* FIXME don't take croppadding changes into account */
NULL, "scale" );
if( !id->pp_filter[id->i_filter] )
{
es_format_t fmt_middle;
es_format_Copy( &fmt_middle, &id->p_decoder->fmt_out );
fmt_middle.video.i_chroma = id->p_encoder->fmt_in.video.i_chroma;
/* Try doing the chroma conversion first ... */
if( id->p_decoder->fmt_out.video.i_chroma !=
id->p_encoder->fmt_in.video.i_chroma )
{
id->pp_filter[id->i_filter] =
transcode_video_filter_new( p_stream,
&id->p_decoder->fmt_out, &fmt_middle,
NULL, "chroma" ); /* FIXME: doesn't exist yet */
if( !id->pp_filter[id->i_filter] )
{
es_format_Clean( &fmt_middle );
p_pic->pf_release( p_pic );
transcode_video_close( p_stream, id );
id->b_transcode = false;
return VLC_EGENERIC;
}
id->i_filter++;
}
/* ... and then the scaling */
if( ( id->p_decoder->fmt_out.video.i_width !=
id->p_encoder->fmt_out.video.i_width ) ||
( id->p_decoder->fmt_out.video.i_height !=
id->p_encoder->fmt_out.video.i_height ) )
{
id->pp_filter[id->i_filter] =
transcode_video_filter_new( p_stream,
&fmt_middle, &id->p_encoder->fmt_in,
/* FIXME don't take croppadding changes into account */
NULL, "scale" );
if( !id->pp_filter[id->i_filter] )
{
es_format_Clean( &fmt_middle );
p_pic->pf_release( p_pic );
transcode_video_close( p_stream, id );
id->b_transcode = false;
return VLC_EGENERIC;
}
id->i_filter++;
}
es_format_Clean( &fmt_middle );
}
else
id->i_filter++;
}
/* Take care of croping and padding */
if( (int)id->p_decoder->fmt_out.video.i_width != p_sys->i_crop_width ||
p_sys->i_crop_width != p_sys->i_nopadd_width ||
p_sys->i_nopadd_width != (int)id->p_encoder->fmt_out.video.i_width ||
(int)id->p_decoder->fmt_out.video.i_height != p_sys->i_crop_height ||
p_sys->i_crop_height != p_sys->i_nopadd_height ||
p_sys->i_nopadd_height != (int)id->p_encoder->fmt_out.video.i_height)
{
/* Set crop and padding information */
es_format_t fmt_in, fmt_out;
es_format_Copy( &fmt_in, &id->p_encoder->fmt_in );
fmt_in.video.i_x_offset = p_sys->i_src_x_offset;
fmt_in.video.i_y_offset = p_sys->i_src_y_offset;
fmt_in.video.i_visible_width = p_sys->i_crop_width;
fmt_in.video.i_visible_height = p_sys->i_crop_height;
es_format_Copy( &fmt_in, &id->p_encoder->fmt_in );
fmt_out.video.i_x_offset = p_sys->i_dst_x_offset;
fmt_out.video.i_y_offset = p_sys->i_dst_y_offset;
fmt_out.video.i_visible_width = id->p_encoder->fmt_in.video.i_width;// p_sys->i_nopadd_width;
fmt_out.video.i_visible_height = id->p_encoder->fmt_in.video.i_height; // p_sys->i_nopadd_height;
id->pp_filter[id->i_filter] =
transcode_video_filter_new( p_stream,
&fmt_in, &fmt_out, NULL, "croppadd" );
es_format_Clean( &fmt_in );
es_format_Clean( &fmt_out );
NULL, NULL );
if( !id->pp_filter[id->i_filter] )
{
p_pic->pf_release( p_pic );
......@@ -2429,7 +2100,6 @@ static int transcode_video_process( sout_stream_t *p_stream,
id->b_transcode = false;
return VLC_EGENERIC;
}
id->i_filter++;
}
......
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