+++ /dev/null
-/*****************************************************************************
- * crop.c : Crop video plugin for vlc
- *****************************************************************************
- * Copyright (C) 2002, 2003 VLC authors and VideoLAN
- * $Id$
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- * mod by Cedric Cocquebert <Cedric.Cocquebert@supelec.fr>
- * based of DScaler idea (M. Samblanet)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_vout.h>
-#include <vlc_dialog.h>
-
-#define BEST_AUTOCROP 1
-#ifdef BEST_AUTOCROP
- #define RATIO_MAX 15000 // 10*4/3 for a 360
-#endif
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int Create ( vlc_object_t * );
-static void Destroy ( vlc_object_t * );
-
-static int Init ( vout_thread_t * );
-static void End ( vout_thread_t * );
-static int Manage ( vout_thread_t * );
-static void Render ( vout_thread_t *, picture_t * );
-
-static void UpdateStats ( vout_thread_t *, picture_t * );
-
-static int MouseEvent( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
-
-#ifdef BEST_AUTOCROP
-/*****************************************************************************
- * Callback prototypes
- *****************************************************************************/
-static int FilterCallback ( vlc_object_t *, char const *,
- vlc_value_t, vlc_value_t, void * );
-#endif
-
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-#define GEOMETRY_TEXT N_("Crop geometry (pixels)")
-#define GEOMETRY_LONGTEXT N_("Set the geometry of the zone to crop. This is set as <width> x <height> + <left offset> + <top offset>.")
-
-#define AUTOCROP_TEXT N_("Automatic cropping")
-#define AUTOCROP_LONGTEXT N_("Automatically detect black borders and crop them.")
-
-#define CROP_HELP N_("Remove borders of the video and replace them by black borders")
-
-#ifdef BEST_AUTOCROP
-#define RATIOMAX_TEXT N_("Ratio max (x 1000)")
-#define RATIOMAX_LONGTEXT N_("Maximum image ratio. The crop plugin will never automatically crop to a higher ratio (ie, to a more \"flat\" image). The value is x1000: 1333 means 4/3.")
-
-#define RATIO_TEXT N_("Manual ratio")
-#define RATIO_LONGTEXT N_("Force a ratio (0 for automatic). Value is x1000: 1333 means 4/3.")
-
-#define TIME_TEXT N_("Number of images for change")
-#define TIME_LONGTEXT N_("The number of consecutive images with the same detected ratio (different from the previously detected ratio) to consider that ratio changed and trigger recrop.")
-
-#define DIFF_TEXT N_("Number of lines for change")
-#define DIFF_LONGTEXT N_("The minimum difference in the number of detected black lines to consider that ratio changed and trigger recrop.")
-
-#define NBP_TEXT N_("Number of non black pixels ")
-#define NBP_LONGTEXT N_("The maximum of non-black pixels in a line to consider"\
- " that the line is black.")
-
-#define SKIP_TEXT N_("Skip percentage (%)")
-#define SKIP_LONGTEXT N_("Percentage of the line to consider while checking for black lines. This allows skipping logos in black borders and crop them anyway.")
-
-#define LUM_TEXT N_("Luminance threshold ")
-#define LUM_LONGTEXT N_("Maximum luminance to consider a pixel as black (0-255).")
-#endif
-
-vlc_module_begin ()
- set_description( N_("Crop video filter") )
- set_shortname( N_("Crop" ))
- set_help(CROP_HELP)
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_VFILTER )
- set_capability( "video filter", 0 )
-
- add_string( "crop-geometry", NULL, GEOMETRY_TEXT,
- GEOMETRY_LONGTEXT, false )
- add_bool( "autocrop", false, AUTOCROP_TEXT,
- AUTOCROP_LONGTEXT, false )
-
-#ifdef BEST_AUTOCROP
- add_integer_with_range( "autocrop-ratio-max", 2405, 0, RATIO_MAX,
- RATIOMAX_TEXT, RATIOMAX_LONGTEXT, true )
-
- add_integer_with_range( "crop-ratio", 0, 0, RATIO_MAX, RATIO_TEXT,
- RATIO_LONGTEXT, false )
- add_integer( "autocrop-time", 25, TIME_TEXT,
- TIME_LONGTEXT, true )
- add_integer( "autocrop-diff", 16, DIFF_TEXT,
- DIFF_LONGTEXT, true )
-
- add_integer( "autocrop-non-black-pixels", 3,
- NBP_TEXT, NBP_LONGTEXT, true )
-
- add_integer_with_range( "autocrop-skip-percent", 17, 0, 100,
- SKIP_TEXT, SKIP_LONGTEXT, true )
-
- add_integer_with_range( "autocrop-luminance-threshold", 40, 0, 128,
- LUM_TEXT, LUM_LONGTEXT, true )
-#endif //BEST_AUTOCROP
-
- add_shortcut( "crop" )
- set_callbacks( Create, Destroy )
-vlc_module_end ()
-
-/*****************************************************************************
- * vout_sys_t: Crop video output method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the Crop specific properties of an output thread.
- *****************************************************************************/
-struct vout_sys_t
-{
- vlc_mutex_t lock;
- vout_thread_t *p_vout;
-
- unsigned int i_x, i_y;
- unsigned int i_width, i_height, i_aspect;
-
- bool b_autocrop;
-
- /* Autocrop specific variables */
- unsigned int i_lastchange;
- bool b_changed;
-#ifdef BEST_AUTOCROP
- unsigned int i_ratio_max;
- unsigned int i_threshold, i_skipPercent, i_nonBlackPixel, i_diff, i_time;
- unsigned int i_ratio;
-#endif
-
-};
-
-/*****************************************************************************
- * Control: control facility for the vout (forwards to child vout)
- *****************************************************************************/
-static int Control( vout_thread_t *p_vout, int i_query, va_list args )
-{
- return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
-}
-
-/*****************************************************************************
- * Create: allocates Crop video thread output method
- *****************************************************************************
- * This function allocates and initializes a Crop vout method.
- *****************************************************************************/
-static int Create( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
-
- /* 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 = Manage;
- p_vout->pf_render = Render;
- p_vout->pf_display = NULL;
- p_vout->pf_control = Control;
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Init: initialize Crop video thread output method
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
-{
- char *psz_var;
- video_format_t fmt;
-
- I_OUTPUTPICTURES = 0;
- memset( &fmt, 0, sizeof(video_format_t) );
-
- p_vout->p_sys->i_lastchange = 0;
- p_vout->p_sys->b_changed = false;
-
- /* Initialize the output structure */
- p_vout->output.i_chroma = p_vout->render.i_chroma;
- p_vout->output.i_width = p_vout->render.i_width;
- p_vout->output.i_height = p_vout->render.i_height;
- p_vout->output.i_aspect = p_vout->render.i_aspect;
- p_vout->fmt_out = p_vout->fmt_in;
-
- /* Shall we use autocrop ? */
- p_vout->p_sys->b_autocrop = var_InheritBool( p_vout, "autocrop" );
-#ifdef BEST_AUTOCROP
- p_vout->p_sys->i_ratio_max =
- var_InheritInteger( p_vout, "autocrop-ratio-max" );
- p_vout->p_sys->i_threshold =
- var_InheritInteger( p_vout, "autocrop-luminance-threshold" );
- p_vout->p_sys->i_skipPercent =
- var_InheritInteger( p_vout, "autocrop-skip-percent" );
- p_vout->p_sys->i_nonBlackPixel =
- var_InheritInteger( p_vout, "autocrop-non-black-pixels" );
- p_vout->p_sys->i_diff =
- var_InheritInteger( p_vout, "autocrop-diff" );
- p_vout->p_sys->i_time =
- var_InheritInteger( p_vout, "autocrop-time" );
- var_SetString( p_vout, "ratio-crop", "0" );
-
- if (p_vout->p_sys->b_autocrop)
- p_vout->p_sys->i_ratio = 0;
- else
- {
- p_vout->p_sys->i_ratio = var_InheritInteger( p_vout, "crop-ratio" );
- // ratio < width / height => ratio = 0 (unchange ratio)
- if (p_vout->p_sys->i_ratio < (p_vout->output.i_width * 1000) / p_vout->output.i_height)
- p_vout->p_sys->i_ratio = 0;
- }
-#endif
-
-
- /* Get geometry value from the user */
- psz_var = var_InheritString( p_vout, "crop-geometry" );
- if( psz_var )
- {
- char *psz_parser, *psz_tmp;
-
- psz_parser = psz_tmp = psz_var;
- while( *psz_tmp && *psz_tmp != 'x' ) psz_tmp++;
-
- if( *psz_tmp )
- {
- psz_tmp[0] = '\0';
- p_vout->p_sys->i_width = atoi( psz_parser );
-
- psz_parser = ++psz_tmp;
- while( *psz_tmp && *psz_tmp != '+' ) psz_tmp++;
-
- if( *psz_tmp )
- {
- psz_tmp[0] = '\0';
- p_vout->p_sys->i_height = atoi( psz_parser );
-
- psz_parser = ++psz_tmp;
- while( *psz_tmp && *psz_tmp != '+' ) psz_tmp++;
-
- if( *psz_tmp )
- {
- psz_tmp[0] = '\0';
- p_vout->p_sys->i_x = atoi( psz_parser );
- p_vout->p_sys->i_y = atoi( ++psz_tmp );
- }
- else
- {
- p_vout->p_sys->i_x = atoi( psz_parser );
- p_vout->p_sys->i_y =
- ( p_vout->output.i_height - p_vout->p_sys->i_height ) / 2;
- }
- }
- else
- {
- p_vout->p_sys->i_height = atoi( psz_parser );
- p_vout->p_sys->i_x =
- ( p_vout->output.i_width - p_vout->p_sys->i_width ) / 2;
- p_vout->p_sys->i_y =
- ( p_vout->output.i_height - p_vout->p_sys->i_height ) / 2;
- }
- }
- else
- {
- p_vout->p_sys->i_width = atoi( psz_parser );
- p_vout->p_sys->i_height = p_vout->output.i_height;
- p_vout->p_sys->i_x =
- ( p_vout->output.i_width - p_vout->p_sys->i_width ) / 2;
- p_vout->p_sys->i_y =
- ( p_vout->output.i_height - p_vout->p_sys->i_height ) / 2;
- }
-
- /* Check for validity */
- if( p_vout->p_sys->i_x + p_vout->p_sys->i_width
- > p_vout->output.i_width )
- {
- p_vout->p_sys->i_x = 0;
- if( p_vout->p_sys->i_width > p_vout->output.i_width )
- {
- p_vout->p_sys->i_width = p_vout->output.i_width;
- }
- }
-
- if( p_vout->p_sys->i_y + p_vout->p_sys->i_height
- > p_vout->output.i_height )
- {
- p_vout->p_sys->i_y = 0;
- if( p_vout->p_sys->i_height > p_vout->output.i_height )
- {
- p_vout->p_sys->i_height = p_vout->output.i_height;
- }
- }
-
- free( psz_var );
- }
- else
-#ifdef BEST_AUTOCROP
- if (p_vout->p_sys->i_ratio)
- {
- p_vout->p_sys->i_aspect = p_vout->p_sys->i_ratio * 432;
- p_vout->p_sys->i_width = p_vout->fmt_out.i_visible_width;
- p_vout->p_sys->i_height = p_vout->output.i_aspect
- * p_vout->output.i_height / p_vout->p_sys->i_aspect
- * p_vout->p_sys->i_width / p_vout->output.i_width;
- p_vout->p_sys->i_height += p_vout->p_sys->i_height % 2;
- p_vout->p_sys->i_x = p_vout->fmt_out.i_x_offset;
- p_vout->p_sys->i_y = (p_vout->output.i_height - p_vout->p_sys->i_height) / 2;
- }
- else
-#endif
- {
- p_vout->p_sys->i_width = p_vout->fmt_out.i_visible_width;
- p_vout->p_sys->i_height = p_vout->fmt_out.i_visible_height;
- p_vout->p_sys->i_x = p_vout->fmt_out.i_x_offset;
- p_vout->p_sys->i_y = p_vout->fmt_out.i_y_offset;
- }
-
- /* Pheeew. Parsing done. */
- msg_Dbg( p_vout, "cropping at %ix%i+%i+%i, %sautocropping",
- p_vout->p_sys->i_width, p_vout->p_sys->i_height,
- p_vout->p_sys->i_x, p_vout->p_sys->i_y,
- p_vout->p_sys->b_autocrop ? "" : "not " );
- /* Set current output image properties */
- p_vout->p_sys->i_aspect = (int64_t)VOUT_ASPECT_FACTOR *
- p_vout->fmt_out.i_sar_num * p_vout->p_sys->i_width /
- (p_vout->fmt_out.i_sar_den * p_vout->p_sys->i_height);
-
-#ifdef BEST_AUTOCROP
- msg_Info( p_vout, "ratio %d", p_vout->p_sys->i_aspect / 432);
-#endif
- fmt.i_width = fmt.i_visible_width = p_vout->p_sys->i_width;
- fmt.i_height = fmt.i_visible_height = p_vout->p_sys->i_height;
- fmt.i_x_offset = fmt.i_y_offset = 0;
- fmt.i_chroma = p_vout->render.i_chroma;
- fmt.i_sar_num = p_vout->p_sys->i_aspect * fmt.i_height;
- fmt.i_sar_den = VOUT_ASPECT_FACTOR * fmt.i_width;
-
- /* Try to open the real video output */
- p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
- if( p_vout->p_sys->p_vout == NULL )
- {
- msg_Err( p_vout, "failed to create vout" );
- dialog_Fatal( p_vout, _("Cropping failed"), "%s",
- _("VLC could not open the video output module.") );
- return VLC_EGENERIC;
- }
-
- vlc_mutex_init( &p_vout->p_sys->lock );
-#ifdef BEST_AUTOCROP
- var_AddCallback( p_vout, "ratio-crop", FilterCallback, NULL );
-#endif
-
- vout_filter_AllocateDirectBuffers( p_vout, VOUT_MAX_PICTURES );
-
- vout_filter_AddChild( p_vout, p_vout->p_sys->p_vout, MouseEvent );
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * End: terminate Crop video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
- vout_sys_t *p_sys = p_vout->p_sys;
-
- if( p_sys->p_vout )
- {
- vout_filter_DelChild( p_vout, p_sys->p_vout, MouseEvent );
- vout_CloseAndRelease( p_sys->p_vout );
- }
-
- vout_filter_ReleaseDirectBuffers( p_vout );
- var_DelCallback( p_vout, "ratio-crop", FilterCallback, NULL );
- vlc_mutex_destroy( &p_sys->lock );
-}
-
-/*****************************************************************************
- * Destroy: destroy Crop video thread output method
- *****************************************************************************
- * Terminate an output method created by CropCreateOutputMethod
- *****************************************************************************/
-static void Destroy( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
-
- free( p_vout->p_sys );
-}
-
-/*****************************************************************************
- * Manage: handle Crop events
- *****************************************************************************
- * This function should be called regularly by video output thread. It manages
- * console events. It returns a non null value on error.
- *****************************************************************************/
-static int Manage( vout_thread_t *p_vout )
-{
- video_format_t fmt;
-
- if( !p_vout->p_sys->b_changed )
- {
- return VLC_SUCCESS;
- }
-
- memset( &fmt, 0, sizeof(video_format_t) );
-
-#ifdef BEST_AUTOCROP
- /* XXX: not thread-safe with FilterCallback */
- msg_Dbg( p_vout, "cropping at %ix%i+%i+%i, %sautocropping",
- p_vout->p_sys->i_width, p_vout->p_sys->i_height,
- p_vout->p_sys->i_x, p_vout->p_sys->i_y,
- p_vout->p_sys->b_autocrop ? "" : "not " );
-
- msg_Info( p_vout, "ratio %d", p_vout->p_sys->i_aspect / 432);
-#endif
-
- if( p_vout->p_sys->p_vout )
- {
- vout_filter_DelChild( p_vout, p_vout->p_sys->p_vout, MouseEvent );
- vout_CloseAndRelease( p_vout->p_sys->p_vout );
- }
-
- fmt.i_width = fmt.i_visible_width = p_vout->p_sys->i_width;
- fmt.i_height = fmt.i_visible_height = p_vout->p_sys->i_height;
- fmt.i_x_offset = fmt.i_y_offset = 0;
- fmt.i_chroma = p_vout->render.i_chroma;
- fmt.i_sar_num = p_vout->p_sys->i_aspect * fmt.i_height / fmt.i_width;
- fmt.i_sar_den = VOUT_ASPECT_FACTOR;
-
- p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
- if( p_vout->p_sys->p_vout == NULL )
- {
- msg_Err( p_vout, "failed to create vout" );
- dialog_Fatal( p_vout, _("Cropping failed"), "%s",
- _("VLC could not open the video output module.") );
- return VLC_EGENERIC;
- }
- vout_filter_AddChild( p_vout, p_vout->p_sys->p_vout, MouseEvent );
-
- p_vout->p_sys->b_changed = false;
- vlc_mutex_lock( &p_vout->p_sys->lock );
- p_vout->p_sys->i_lastchange = 0;
- vlc_mutex_unlock( &p_vout->p_sys->lock );
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Render: display previously rendered output
- *****************************************************************************
- * This function sends the currently rendered image to Crop image, waits
- * until it is displayed and switches the two rendering buffers, preparing next
- * frame.
- *****************************************************************************/
-static void Render( vout_thread_t *p_vout, picture_t *p_pic )
-{
- picture_t *p_outpic = NULL;
- int i_plane;
-
- if( p_vout->p_sys->b_changed )
- {
- return;
- }
-
- while( ( p_outpic =
- vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 )
- ) == NULL )
- {
- if( !vlc_object_alive (p_vout) || p_vout->b_error )
- {
- vout_DestroyPicture( p_vout->p_sys->p_vout, p_outpic );
- return;
- }
-
- msleep( VOUT_OUTMEM_SLEEP );
- }
-
- p_outpic->date = p_pic->date;
- vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
-
- for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
- {
- uint8_t *p_in, *p_out, *p_out_end;
- int i_in_pitch = p_pic->p[i_plane].i_pitch;
- const int i_out_pitch = p_outpic->p[i_plane].i_pitch;
- const int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
-
- p_in = p_pic->p[i_plane].p_pixels
- /* Skip the right amount of lines */
- + i_in_pitch * ( p_pic->p[i_plane].i_visible_lines *
- p_vout->p_sys->i_y / p_vout->output.i_height )
- /* Skip the right amount of columns */
- + i_in_pitch * p_vout->p_sys->i_x / p_vout->output.i_width;
-
- p_out = p_outpic->p[i_plane].p_pixels;
- p_out_end = p_out + i_out_pitch * p_outpic->p[i_plane].i_visible_lines;
-
- while( p_out < p_out_end )
- {
- memcpy( p_out, p_in, i_copy_pitch );
- p_in += i_in_pitch;
- p_out += i_out_pitch;
- }
- }
-
- vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
- vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
-
- /* The source image may still be in the cache ... parse it! */
- vlc_mutex_lock( &p_vout->p_sys->lock );
- if( p_vout->p_sys->b_autocrop )
- UpdateStats( p_vout, p_pic );
- vlc_mutex_unlock( &p_vout->p_sys->lock );
-}
-
-#ifdef BEST_AUTOCROP
-static bool NonBlackLine(uint8_t *p_in, int i_line, int i_pitch,
- int i_visible_pitch, int i_lines,
- int i_lumThreshold, int i_skipCountPercent,
- int i_nonBlackPixel, int i_chroma)
-{
- const int i_col = i_line * i_pitch / i_lines;
- int i_index, i_count = 0;
- int i_skipCount = 0;
-
- switch(i_chroma)
- {
- // planar YUV
- case VLC_CODEC_I444:
- case VLC_CODEC_I422:
- case VLC_CODEC_I420:
- case VLC_CODEC_YV12:
- case VLC_CODEC_I411:
- case VLC_CODEC_I410:
- case VLC_CODEC_YUVA:
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = i_col/2 + i_skipCount/2;
- i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2;
- i_index++)
- {
- i_count += (p_in[i_index] > i_lumThreshold);
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- // packed RGB
- case VLC_CODEC_RGB8: // packed by 1
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = i_col/2 + i_skipCount/2;
- i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2;
- i_index++)
- {
- i_count += (p_in[i_index] > i_lumThreshold);
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- case VLC_CODEC_RGB15: // packed by 2
- case VLC_CODEC_RGB16: // packed by 2
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = i_col/2 + i_skipCount/2 -
- (i_col/2 + i_skipCount/2) % 2;
- i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2;
- i_index+=2)
- {
- i_count += (p_in[i_index] > i_lumThreshold) &&
- (p_in[i_index + 1] > i_lumThreshold);
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- case VLC_CODEC_RGB24: // packed by 3
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = i_col/2 + i_skipCount/2 - (i_col/2 + i_skipCount/2) % 3; i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2; i_index+=3)
- {
- i_count += (p_in[i_index] > i_lumThreshold) &&
- (p_in[i_index + 1] > i_lumThreshold) &&
- (p_in[i_index + 2] > i_lumThreshold);
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- case VLC_CODEC_RGB32: // packed by 4
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = i_col/2 + i_skipCount/2 - (i_col/2 + i_skipCount/2) % 4; i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2; i_index+=4)
- {
- i_count += (uint32_t)(*(p_in + i_index)) > (uint32_t)i_lumThreshold;
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- // packed YUV
- case VLC_CODEC_YUYV: // packed by 2
- case VLC_CODEC_UYVY: // packed by 2
- i_skipCount = (i_pitch * i_skipCountPercent) / 100;
- for (i_index = (i_col/2 + i_skipCount/2) -
- (i_col/2 + i_skipCount/2) % 2;
- i_index <= i_visible_pitch/2 + i_col/2 - i_skipCount/2;
- i_index+=2)
- {
- i_count += (p_in[i_index] > i_lumThreshold);
- if (i_count > i_nonBlackPixel) break;
- }
- break;
- default :
- break;
- }
- return (i_count > i_nonBlackPixel);
-}
-#endif
-
-static void UpdateStats( vout_thread_t *p_vout, picture_t *p_pic )
-{
- uint8_t *p_in = p_pic->p[0].p_pixels;
- int i_pitch = p_pic->p[0].i_pitch;
- int i_visible_pitch = p_pic->p[0].i_visible_pitch;
- int i_lines = p_pic->p[0].i_visible_lines;
- int i_firstwhite = -1, i_lastwhite = -1, i;
-#ifdef BEST_AUTOCROP
- int i_time = p_vout->p_sys->i_time;
- int i_diff = p_vout->p_sys->i_diff;
-
- if (!p_vout->p_sys->i_ratio)
- {
- /* Determine where black borders are */
- for( i = 0 ; i < i_lines ; i++)
- {
- if (NonBlackLine(p_in, i, i_pitch, i_visible_pitch, i_lines,
- p_vout->p_sys->i_threshold,
- p_vout->p_sys->i_skipPercent,
- p_vout->p_sys->i_nonBlackPixel,
- p_vout->output.i_chroma))
- {
- i_firstwhite = i;
- i_lastwhite = i_lines - i;
- break;
- }
- p_in += i_pitch;
- }
-
- /* Decide whether it's worth changing the size */
- if( i_lastwhite == -1 )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- if( (i_lastwhite - i_firstwhite) < (int) (p_vout->p_sys->i_height / 2) )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- if (p_vout->output.i_aspect
- * p_vout->output.i_height /
- (i_lastwhite - i_firstwhite + 1)
- * p_vout->p_sys->i_width /
- p_vout->output.i_width >
- p_vout->p_sys->i_ratio_max * 432)
- {
- int i_height = ((p_vout->output.i_aspect / 432) *
- p_vout->output.i_height * p_vout->p_sys->i_width) /
- (p_vout->output.i_width * p_vout->p_sys->i_ratio_max);
- i_firstwhite = (p_vout->output.i_height - i_height) / 2;
- i_lastwhite = p_vout->output.i_height - i_firstwhite;
-/*
- p_vout->p_sys->i_lastchange = 0;
- return;
-*/
- }
-
- if( (i_lastwhite - i_firstwhite) <
- (int) (p_vout->p_sys->i_height + i_diff)
- && (i_lastwhite - i_firstwhite + i_diff) >
- (int) p_vout->p_sys->i_height )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- /* We need at least 'i_time' images to make up our mind */
- p_vout->p_sys->i_lastchange++;
- if( p_vout->p_sys->i_lastchange < (unsigned int)i_time )
- {
- return;
- }
- }
- else
- {
- if ( p_vout->p_sys->i_lastchange >= (unsigned int)i_time )
- {
- p_vout->p_sys->i_aspect = p_vout->p_sys->i_ratio * 432;
- int i_height = p_vout->output.i_aspect
- * p_vout->output.i_height /
- p_vout->p_sys->i_aspect
- * p_vout->p_sys->i_width /
- p_vout->output.i_width;
- i_firstwhite = (p_vout->output.i_height - i_height) / 2;
- i_lastwhite = p_vout->output.i_height - i_firstwhite;
- }
- else
- {
- return;
- }
- }
-
-#else
- /* Determine where black borders are */
- switch( p_vout->output.i_chroma )
- {
- case VLC_CODEC_I420:
- /* XXX: Do not laugh ! I know this is very naive. But it's just a
- * proof of concept code snippet... */
- for( i = i_lines ; i-- ; )
- {
- const int i_col = i * i_pitch / i_lines;
-
- if( p_in[i_col/2] > 40
- && p_in[i_visible_pitch/2] > 40
- && p_in[i_visible_pitch/2 + i_col/2] > 40 )
- {
- if( i_lastwhite == -1 )
- {
- i_lastwhite = i;
- }
- i_firstwhite = i;
- }
- p_in += i_pitch;
- }
- break;
-
- default:
- break;
- }
-
- /* Decide whether it's worth changing the size */
- if( i_lastwhite == -1 )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- if( (unsigned int)(i_lastwhite - i_firstwhite)
- < p_vout->p_sys->i_height / 2 )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- if( (unsigned int)(i_lastwhite - i_firstwhite)
- < p_vout->p_sys->i_height + 16
- && (unsigned int)(i_lastwhite - i_firstwhite + 16)
- > p_vout->p_sys->i_height )
- {
- p_vout->p_sys->i_lastchange = 0;
- return;
- }
-
- /* We need at least 25 images to make up our mind */
- p_vout->p_sys->i_lastchange++;
- if( p_vout->p_sys->i_lastchange < 25 )
- {
- return;
- }
-#endif //BEST_AUTOCROP
-
- /* Tune a few values */
- if( i_firstwhite & 1 )
- {
- i_firstwhite--;
- }
-
- if( !(i_lastwhite & 1) )
- {
- i_lastwhite++;
- }
-
- /* Change size */
- p_vout->p_sys->i_y = i_firstwhite;
- p_vout->p_sys->i_height = i_lastwhite - i_firstwhite + 1;
-#ifdef BEST_AUTOCROP
- // check p_vout->p_sys->i_height <= p_vout->output.i_height
- if (p_vout->p_sys->i_height > p_vout->output.i_height)
- p_vout->p_sys->i_height = p_vout->output.i_height;
-#endif
-
- p_vout->p_sys->i_aspect = p_vout->output.i_aspect
- * p_vout->output.i_height / p_vout->p_sys->i_height
- * p_vout->p_sys->i_width / p_vout->output.i_width;
-
- p_vout->p_sys->b_changed = true;
-}
-
-/**
- * Forward mouse event with proper conversion.
- */
-static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
-{
- vout_thread_t *p_vout = p_data;
- VLC_UNUSED(p_this); VLC_UNUSED(oldval);
-
- if( !strcmp( psz_var, "mouse-button-down" ) )
- return var_SetChecked( p_vout, psz_var, VLC_VAR_INTEGER, newval );
-
- /* Translate the mouse coordinates
- * FIXME missing lock */
- newval.coords.x += p_vout->p_sys->i_x;
- newval.coords.y += p_vout->p_sys->i_y;
- return var_SetChecked( p_vout, psz_var, VLC_VAR_COORDS, newval );
-}
-
-#ifdef BEST_AUTOCROP
-/*****************************************************************************
- * FilterCallback: called when changing the ratio on the fly.
- *****************************************************************************/
-static int FilterCallback( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data )
-{
- VLC_UNUSED(p_data); VLC_UNUSED(oldval);
- vout_thread_t * p_vout = (vout_thread_t *)p_this;
-
- if( !strcmp( psz_var, "ratio-crop" ) )
- {
- vlc_mutex_lock( &p_vout->p_sys->lock );
- if ( !strcmp( newval.psz_string, "Auto" ) )
- p_vout->p_sys->i_ratio = 0;
- else
- {
- p_vout->p_sys->i_ratio = (unsigned int)atoi(newval.psz_string);
- p_vout->p_sys->i_lastchange = p_vout->p_sys->i_time;
- p_vout->p_sys->b_autocrop = true;
- }
- if (p_vout->p_sys->i_ratio)
- {
- if (p_vout->p_sys->i_ratio < (p_vout->output.i_width * 1000) /
- p_vout->output.i_height)
- p_vout->p_sys->i_ratio = (p_vout->output.i_width * 1000) /
- p_vout->output.i_height;
- if (p_vout->p_sys->i_ratio < p_vout->output.i_aspect / 432)
- p_vout->p_sys->i_ratio = p_vout->output.i_aspect / 432;
- }
- vlc_mutex_unlock( &p_vout->p_sys->lock );
- }
- return VLC_SUCCESS;
-}
-#endif
projects / vlc / commitdiff