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/*
* xine_post_autocrop.c: xine post plugin
*
* See the main source file 'xineliboutput.c' for copyright information and
* how to reach the author.
*
* $Id: xine_post_autocrop.c,v 1.52 2011/10/30 16:59:02 phintuka Exp $
*
*/
/*
* Copyright (C) 2006 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine 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 General Public License for more details.
*
* You should have received a copy of the GNU 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
*
*
* autocrop video filter by Petri Hintukainen 25/03/2006
*
* Automatically crop 4:3 letterbox frames to 16:9
*
* based on expand.c
*
*
* TODO:
* - more reliable border detection, including channel logo detection
* - OSD re-positioning (?)
*
*/
#include <stdint.h>
#include <xine/xine_internal.h>
#include <xine/post.h>
#ifndef FABS
# define FABS(x) ((x) < 0.0 ? -(x) : (x))
#endif
/*
* Configuration
*/
/*#define MARK_FRAME Draw markers on detected boundaries */
/*#define ENABLE_64BIT 1 Force using of 64-bit routines */
/*#undef __MMX__ Disable MMX */
/*#undef __SSE__ Disable SSE */
/*#define FILTER2 Tighter Y-filter */
#undef LOG_MODULE
#define LOG_MODULE "autocrop"
#define LOG_INFO (this->debug_level > 0)
#define LOG_DEBUG (this->debug_level > 1)
#define LOG_TRACE (this->debug_level > 2)
#define LOG_ACCEL 1
#define DEFAULT_AUTODETECT_RATE 4 /* unit: frames */
#define DEFAULT_STABILIZE_TIME (5*25) /* 5 seconds, unit: frames */
#define DEFAULT_SOFT_START_STEP 4 /* unit: lines per frame */
#define DEFAULT_SUBS_DETECT_LIFETIME (60*25) /* 1 minute, unit: frames */
#define DEFAULT_SUBS_DETECT_STABILIZE_TIME 12 /* unit: frames */
#define DEFAULT_LOGO_WIDTH 20 /* percentage of frame width */
/* parameters for avards algorithm */
#define DEFAULT_OVERSCAN_COMPENSATE 0 /* percentage of frame height for overscan compensation */
#define DEFAULT_BAR_TONE_TOLERANCE 0 /* 0...255 */
/*
* Plugin
*/
typedef struct autocrop_parameters_s {
int enable_autodetect;
int autodetect_rate;
int enable_subs_detect;
int subs_detect_lifetime;
int subs_detect_stabilize_time;
int soft_start;
int soft_start_step;
int stabilize;
int stabilize_time;
int logo_width;
int use_driver_crop;
int use_avards_analysis;
int overscan_compensate;
int bar_tone_tolerance;
int debug_level;
} autocrop_parameters_t;
START_PARAM_DESCR(autocrop_parameters_t)
PARAM_ITEM(POST_PARAM_TYPE_BOOL, enable_autodetect, NULL, 0, 1, 0,
"enable automatic border detecton")
PARAM_ITEM(POST_PARAM_TYPE_INT, autodetect_rate, NULL, 1, 30, 0,
"rate of automatic letterbox detection")
PARAM_ITEM(POST_PARAM_TYPE_INT, stabilize_time, NULL, 1, 9999, 0,
"number of frames with equal bars before cropping value changes")
PARAM_ITEM(POST_PARAM_TYPE_BOOL, enable_subs_detect, NULL, 0, 1, 0,
"enable automatic subtitle detecton")
PARAM_ITEM(POST_PARAM_TYPE_INT, subs_detect_lifetime, NULL, 0, 9999, 0,
"lifetime of automatic subtitle detection")
PARAM_ITEM(POST_PARAM_TYPE_INT, subs_detect_stabilize_time, NULL, 0, 9999, 0,
"stabilize time of automatic subtitle detection")
PARAM_ITEM(POST_PARAM_TYPE_BOOL, soft_start, NULL, 0, 1, 0,
"enable soft start of cropping")
PARAM_ITEM(POST_PARAM_TYPE_INT, soft_start_step, NULL, 1, 999, 0,
"soft start step width of cropping")
PARAM_ITEM(POST_PARAM_TYPE_BOOL, stabilize, NULL, 0, 1, 0,
"stabilize cropping to 14:9, 16:9, (16:9+subs), 20:9, (20:9+subs)")
PARAM_ITEM(POST_PARAM_TYPE_INT, logo_width, NULL, 0, 99, 0,
"maximum width of logo for automatic logo detection (percentage of frame width)")
PARAM_ITEM(POST_PARAM_TYPE_BOOL, use_driver_crop, NULL, 0, 1, 0,
"use video driver to crop frames (default is to copy frames in post plugin)")
PARAM_ITEM(POST_PARAM_TYPE_BOOL, use_avards_analysis, NULL, 0, 1, 0,
"use avards algorithm for frame analysis")
PARAM_ITEM(POST_PARAM_TYPE_INT, overscan_compensate, NULL, 0, 100, 0,
"compensation of output device overscan applied when cropping frames (%1000 of frame height)")
PARAM_ITEM(POST_PARAM_TYPE_INT, bar_tone_tolerance, NULL, 0, 255, 0,
"tolerance of bar color")
PARAM_ITEM(POST_PARAM_TYPE_INT, debug_level, NULL, 0, 4, 0,
"debug level")
END_PARAM_DESCR(autocrop_param_descr)
typedef struct autocrop_post_plugin_s
{
post_plugin_t post_plugin;
xine_post_in_t parameter_input;
/* setup */
int autodetect;
int autodetect_rate;
int subs_detect;
int subs_detect_lifetime;
int subs_detect_stabilize_time;
int soft_start;
int soft_start_step;
int stabilize;
int stabilize_time;
int logo_width;
int always_use_driver_crop;
int use_avards_analysis;
int overscan_compensate;
int bar_tone_tolerance;
int debug_level;
/* Current cropping status */
int cropping_active;
/* Detected bars */
int detected_end_line;
int prev_detected_end_line;
/* Stabilized bars */
int stabilized_start_line;
int stabilized_end_line;
/* Active bars */
int start_line;
int end_line;
int crop_total;
/* Delayed start for cropping */
int stabilize_timer;
/* frame counter (used to select frames for analysis) */
int analyze_timer;
/* Last seen frame */
uint32_t prev_height;
uint32_t prev_width;
int64_t prev_pts;
/* eliminate jumping when there are subtitles inside bottom bar:
- when cropping is active and one frame has larger end_line
than previous, we enlarge frame.
- after this, cropping is not reseted to previous value unless
bottom bar has been empty for certain time */
int height_limit_active; /* true if detected possible subtitles in bottom area */
int height_limit; /* do not crop bottom above this value (bottom of subtitles) */
int height_limit_timer; /* counter how many following frames must have black
bottom bar until returning to full cropping
(used to reset height_limit when there are no subtitles) */
int end_line_stabilize_timer; /* counter for detecting changes of end line */
int use_driver_crop; /* true if non standard frame format (e.g. vdpau) used */
int has_driver_crop; /* true if driver has cropping capability */
int has_unscaled_overlay; /* true if driver has unscaled overlay capability */
int prev_autodetect_rate;
pthread_mutex_t crop_lock;
/* retrieval of standard frame format image */
vo_frame_t frame;
uint8_t *img;
int img_size;
} autocrop_post_plugin_t;
#if (XINE_VERSION_CODE < 10190) && defined(VO_CAP_ARGB_LAYER_OVERLAY)
/* xine-lib-vdpau r134+ */
# define HAVE_PROC_PROVIDE_STANDARD_FRAME_DATA
#endif
#if XINE_VERSION_CODE >= 10190
/* xine-lib 1.2 r10718+ (2008-12-30) */
# define HAVE_PROC_PROVIDE_STANDARD_FRAME_DATA
#endif
# if defined(__SSE__)
# warning Compiling with SSE support
# include <xmmintrin.h>
# elif defined(__MMX__)
# warning Compiling with MMX support
# include <mmintrin.h>
# endif
#if defined(__WORDSIZE)
# if __WORDSIZE == 64
# warning Compiling with 64-bit integer support
# define ENABLE_64BIT (sizeof(int) > 32)
# endif
#endif
/*
* Constants
*/
#define YNOISEFILTER (0xE0U)
#define YSHIFTUP (0x05U)
#define UVBLACK (0x80U)
#define UVSHIFTUP (0x03U)
#define UVNOISEFILTER (0xF8U)
/* YV12 */
#define YNOISEFILTER32 (YNOISEFILTER * 0x01010101U)
#define YSHIFTUP32 (YSHIFTUP * 0x01010101U)
#define UVBLACK32 (UVBLACK * 0x01010101U)
#define UVSHIFTUP32 (UVSHIFTUP * 0x01010101U)
#define UVNOISEFILTER32 (UVNOISEFILTER * 0x01010101U)
#define YNOISEFILTER64 (YNOISEFILTER * UINT64_C(0x0101010101010101))
#define YSHIFTUP64 (YSHIFTUP * UINT64_C(0x0101010101010101))
#define UVBLACK64 (UVBLACK * UINT64_C(0x0101010101010101))
#define UVSHIFTUP64 (UVSHIFTUP * UINT64_C(0x0101010101010101))
#define UVNOISEFILTER64 (UVNOISEFILTER * UINT64_C(0x0101010101010101))
/* YUY2 */
/* TODO: should use normal/inverse order based on endianess */
#if 0
#define YUY2BLACK32 (UVBLACK * 0x00010001U)
#define YUY2SHIFTUP32 (UVSHIFTUP * 0x00010001U)
#define YUY2NOISEFILTER32 ((YNOISEFILTER * 0x01000100U)|(UVNOISEFILTER * 0x00010001U))
#else
#define YUY2BLACK32 (UVBLACK * 0x01000100U)
#define YUY2SHIFTUP32 (UVSHIFTUP * 0x01000100U)
#define YUY2NOISEFILTER32 ((YNOISEFILTER * 0x00010001U)|(UVNOISEFILTER * 0x01000100U))
#endif
#define YUY2BLACK64 (YUY2BLACK32 * UINT64_C(0x0000000100000001))
#define YUY2SHIFTUP64 (YUY2SHIFTUP32 * UINT64_C(0x0000000100000001))
#define YUY2NOISEFILTER64 (YUY2NOISEFILTER32 * UINT64_C(0x0000000100000001))
#ifdef FILTER2
/* tighter Y-filter: original black threshold is 0x1f ; here it is 0x1f - 0x0b = 0x14 */
# define YUY2SHIFTUP32 ((UVSHIFTUP * 0x00010001U)|(YSHIFTUP * 0x01000100U))
# undef __SSE__
#endif
/*
* Black bar detection
*
* Detect black lines with simple noise filtering.
* Line is "black" if Y-valus are less than 0x20 and
* U/V values inside range 0x7d...0x84.
* ~ 32 first and last pixels are not checked.
*
*/
static int blank_line_Y_C(uint8_t *data, int length);
static int blank_line_UV_C(uint8_t *data, int length);
static int blank_line_YUY2_C(uint8_t *data, int length);
#if defined(ENABLE_64BIT)
static int blank_line_Y_C64(uint8_t *data, int length);
static int blank_line_UV_C64(uint8_t *data, int length);
static int blank_line_YUY2_C64(uint8_t *data, int length);
#endif
#if defined(__MMX__)
static int blank_line_Y_mmx(uint8_t *data, int length);
static int blank_line_UV_mmx(uint8_t *data, int length);
static int blank_line_YUY2_mmx(uint8_t *data, int length);
#endif
#if defined(__SSE__)
static int blank_line_Y_sse(uint8_t *data, int length);
static int blank_line_UV_sse(uint8_t *data, int length);
static int blank_line_YUY2_sse(uint8_t *data, int length);
#endif
static int blank_line_Y_INIT(uint8_t *data, int length);
static int blank_line_UV_INIT(uint8_t *data, int length);
static int blank_line_YUY2_INIT(uint8_t *data, int length);
static void autocrop_init_mm_accel(void);
int (*blank_line_Y)(uint8_t *data, int length) = blank_line_Y_INIT;
int (*blank_line_UV)(uint8_t *data, int length) = blank_line_UV_INIT;
int (*blank_line_YUY2)(uint8_t *data, int length) = blank_line_YUY2_INIT;
static int blank_line_Y_C(uint8_t *data, int length)
{
uint32_t *data32 = (uint32_t*)((((long int)data) + 32 + 3) & (~3)), r = 0;
length -= 64; /* skip borders (2 x 32 pixels) */
length /= 4; /* 4 bytes / loop */
#ifdef FILTER2
while(length) {
/* shiftdown needs saturated unsigned element-wise substraction, available only in MMX ...*/
/* -> use shiftup and looser noise filter for same result. */
/* this needs special handling for large values */
r = r | data32[--length]; /* this catches large values (0xf9 : 0xf9+0x7=0x100 === black) */
r = r | (data32[length] + YSHIFTUP32); /* this catches small walues (0x1d...0x1f) */
}
#else
while(length)
r = r | data32[--length];
#endif
return !(r & YNOISEFILTER32);
}
static int blank_line_UV_C(uint8_t *data, int length)
{
uint32_t *data32 = (uint32_t*)((((long int)data) + 16 + 3) & (~3));
uint32_t r1 = 0, r2 = 0;
length -= 32; /* skip borders (2 x 32 pixels, 2 pix/byte) */
length /= 4; /* 2 x 4 bytes / loop */
while(length>0) {
r1 = r1 | ((data32[--length] + UVSHIFTUP32) ^ UVBLACK32);
r2 = r2 | ((data32[--length] + UVSHIFTUP32) ^ UVBLACK32);
}
return !((r1|r2) & (UVNOISEFILTER32));
}
#if defined(ENABLE_64BIT)
static int blank_line_Y_C64(uint8_t *data, int length)
{
uint64_t *data64 = (uint64_t*)((((long int)data) + 32 + 7) & (~7)), r = 0;
length -= 64; /* skip borders (2 x 32 pixels) */
length /= 8; /* 8 bytes / loop */
#ifdef FILTER2
while(length) {
r = r | data64[--length];
r = r | (data64[length] + YSHIFTUP64);
}
#else
while(length)
r = r | data64[--length];
#endif
return !(r & YNOISEFILTER64);
}
#endif
#if defined(ENABLE_64BIT)
static int blank_line_UV_C64(uint8_t *data, int length)
{
uint64_t *data64 = (uint64_t*)((((long int)data) + 16 + 7) & (~7));
uint64_t r1 = UINT64_C(0), r2 = UINT64_C(0);
length -= 32; /* skip borders (2x32 pixels, 2 pix/byte) */
length /= 8; /* 2 x 8 bytes / loop */
while(length>0) {
r1 = r1 | ((data64[--length] + UVSHIFTUP64) ^ UVBLACK64);
r2 = r2 | ((data64[--length] + UVSHIFTUP64) ^ UVBLACK64);
}
return !((r1|r2) & (UVNOISEFILTER64));
}
#endif
#if defined(__MMX__)
typedef union {
uint32_t u32[2];
__m64 m64;
} __attribute__((__aligned__ (8))) __m64_wrapper;
#endif
#if defined(__MMX__)
int blank_line_Y_mmx(uint8_t *data, int length)
{
#ifdef FILTER2
static const __m64_wrapper mask = {{YNOISEFILTER32, YNOISEFILTER32}};
static const __m64_wrapper gshift = {{YSHIFTUP32, YSHIFTUP32}};
register __m64 sum, sum2, shift = gshift.m64, val;
#else
static const __m64_wrapper mask = {{YNOISEFILTER32, YNOISEFILTER32}};
register __m64 sum;
#endif
__m64 *data64 = (__m64*)(((long int)(data + 32 + 7)) & (~7));
/*sum = _m_pxor(sum,sum);*/
__asm__("pxor %0,%0" : "=y"(sum));
length -= 64; /* skip borders (2 x 32 pixels) */
length /= 8; /* 8 bytes / loop */
#ifdef FILTER2
__asm__("pxor %0,%0" : "=y"(sum2));
while(length) {
val = data64[--length];
sum = _m_por(sum, val);
sum2 = _m_por(sum2, _m_paddb(val, shift));
}
sum = _m_por(sum, sum2);
#else
while(length)
sum = _m_por(sum, data64[--length]);
#endif
sum = _m_pand(sum, mask.m64);
return 0 == _m_to_int(_m_packsswb(sum, sum));
}
#endif
#if defined(__MMX__)
static int blank_line_UV_mmx(uint8_t *data, int length)
{
static const __m64_wrapper gm_03 = {{UVSHIFTUP32, UVSHIFTUP32}};
static const __m64_wrapper gm_f8 = {{UVNOISEFILTER32, UVNOISEFILTER32}};
static const __m64_wrapper gm_80 = {{UVBLACK32, UVBLACK32}};
__m64 *data64 = (__m64*)(((long int)(data) + 16 + 7) & (~7));
register __m64 sum1, sum2, m_03, /*m_f8,*/ m_80;
/*sum1 = _m_pxor(sum1, sum1); sum1 = _mm_setzero_si64(); */
/*sum2 = _m_pxor(sum2, sum2); sum2 = _mm_setzero_si64(); */
__asm__("pxor %0,%0" : "=y"(sum1));
__asm__("pxor %0,%0" : "=y"(sum2));
/* fetch static data to MMX registers */
m_03 = gm_03.m64;
/*m_f8 = gm_f8.m64;*/
m_80 = gm_80.m64;
length -= 32; /* skip borders (2 x 32 pixels, 2pix/byte) */
length /= 8; /* 8 bytes / vector */
do {
/* process two 8-byte vectors */
sum1 = _m_por(sum1,
/* grab every byte that is not black (x ^ 0x80 != 0) */
_m_pxor(
/* filter noise: U/V of each "black" pixel should be 0x7d..0x84
-> each black pixel should be 0x80 after (x+3) & 0xf8 */
/*_m_pand(*/
/* each black pixel should be 0x80..0x87 after adding 3 */
_m_paddb(
data64[length-1],
m_03)/*,
m_f8)*/,
m_80));
sum2 = _m_por(sum2,
_m_pxor(
/*_m_pand( */
_m_paddb(
data64[length-2],
m_03)/*,
m_f8)*/,
m_80));
length -= 2;
} while(length>0);
/* combine two result vectors (or), filter noise (and) */
sum1 = _m_pand(_m_por(sum1,
sum2),
gm_f8.m64);
/* result vector of black line is 0 */
return 0 == _m_to_int(_m_packsswb(sum1, sum1));
}
#endif
#if defined(__SSE__)
typedef union {
uint32_t u32[4];
__m128 m128;
} __attribute((__aligned__ (16))) __m128_wrapper;
#endif
#if defined(__SSE__)
static int blank_line_Y_sse(uint8_t *data, int length)
{
static const __m128_wrapper gmask = {{YNOISEFILTER32, YNOISEFILTER32,
YNOISEFILTER32, YNOISEFILTER32}};
__m128 *data128 = (__m128*)(((long int)(data) + 32 + 15) & (~15));
register __m128 sum1, sum2, zero, mask;
length -= 64; /* skip borders (2 x 32 pixels) */
length /= 16; /* 16 bytes / loop */
/* Start prefetching data to CPU cache */
_mm_prefetch(data128+length-1, _MM_HINT_NTA);
_mm_prefetch(data128+length-3, _MM_HINT_NTA);
/*
* Process in two paraller loops, one 16 byte vector / each sub-loop
* - grabs bytes with value larger than treshold
*/
zero = _mm_setzero_ps();
mask = gmask.m128;
sum1 = zero;
sum2 = zero;
do {
_mm_prefetch(data128+length-5, _MM_HINT_NTA);
sum1 = _mm_or_ps(sum1, data128[--length]);
sum2 = _mm_or_ps(sum2, data128[--length]);
} while(length>0);
return 0x0f == _mm_movemask_ps(_mm_cmpeq_ps(_mm_and_ps(_mm_or_ps(sum1,
sum2),
gmask.m128),
_mm_setzero_ps()));
}
#endif
#if defined(__SSE__)
static int blank_line_UV_sse(uint8_t *data, int length)
{
uint8_t *top = data + length - 1;
do {
_mm_prefetch(top, _MM_HINT_NTA);
_mm_prefetch(top-32, _MM_HINT_NTA);
_mm_prefetch(top-64, _MM_HINT_NTA);
_mm_prefetch(top-72, _MM_HINT_NTA);
top -= 128;
} while(top >= data);
return blank_line_UV_mmx(data, length);
}
#endif
static int blank_line_YUY2_C(uint8_t *data, int length)
{
uint32_t *data32 = (uint32_t*)((((long int)data) + 64 + 3) & (~3));
uint32_t r1 = 0, r2 = 0;
length -= 128; /* skip borders (2 x 32 pixels, 2 bytes/pixel) */
length /= 4; /* 2 x 4 bytes / loop */
while(length) {
r1 = r1 | ((data32[--length] + YUY2SHIFTUP32) ^ YUY2BLACK32);
r2 = r2 | ((data32[--length] + YUY2SHIFTUP32) ^ YUY2BLACK32);
}
return !((r1|r2) & YUY2NOISEFILTER32);
}
#if defined(ENABLE_64BIT)
static int blank_line_YUY2_C64(uint8_t *data, int length)
{
uint64_t *data64 = (uint64_t*)((((long int)data) + 64 + 7) & (~7));
uint64_t r1 = 0, r2 = 0;
length -= 128; /* skip borders (2 x 32 pixels, 2 bytes/pixel) */
length /= 8; /* 2 x 8 bytes / loop */
while(length) {
r1 = r1 | ((data64[--length] + YUY2SHIFTUP64) ^ YUY2BLACK64);
r2 = r2 | ((data64[--length] + YUY2SHIFTUP64) ^ YUY2BLACK64);
}
return !((r1|r2) & YUY2NOISEFILTER64);
}
#endif
#if defined(__MMX__)
static int blank_line_YUY2_mmx(uint8_t *data, int length)
{
/* not implemented */
# if !defined(ENABLE_64BIT)
return blank_line_YUY2_C(data, length);
# else
return blank_line_YUY2_C64(data, length);
# endif
}
#endif
#if defined(__SSE__)
static int blank_line_YUY2_sse(uint8_t *data, int length)
{
uint8_t *top = data + length - 1;
do {
_mm_prefetch(top, _MM_HINT_NTA);
_mm_prefetch(top-32, _MM_HINT_NTA);
_mm_prefetch(top-64, _MM_HINT_NTA);
_mm_prefetch(top-72, _MM_HINT_NTA);
top -= 128;
} while(top >= data);
return blank_line_YUY2_mmx(data, length);
}
#endif
static void autocrop_init_mm_accel(void)
{
blank_line_Y = blank_line_Y_C;
blank_line_UV = blank_line_UV_C;
blank_line_YUY2 = blank_line_YUY2_C;
#if defined(__SSE__)
if(xine_mm_accel() & MM_ACCEL_X86_SSE) {
llprintf(LOG_ACCEL, "autocrop_init_mm_accel: using SSE\n");
blank_line_Y = blank_line_Y_sse;
blank_line_UV = blank_line_UV_sse;
blank_line_YUY2 = blank_line_YUY2_sse;
return;
}
#endif
#if defined(ENABLE_64BIT)
if(ENABLE_64BIT) {
llprintf(LOG_ACCEL, "autocrop_init_mm_accel: using 64-bit integer operations\n");
blank_line_Y = blank_line_Y_C64;
blank_line_UV = blank_line_UV_C64;
blank_line_YUY2 = blank_line_YUY2_C64;
return;
}
#endif
#if defined(__MMX__)
if(xine_mm_accel() & MM_ACCEL_X86_MMX) {
/* mmx not faster than normal x64 (?) */
llprintf(LOG_ACCEL, "autocrop_init_mm_accel: using MMX\n");
blank_line_Y = blank_line_Y_mmx;
blank_line_UV = blank_line_UV_mmx;
blank_line_YUY2 = blank_line_YUY2_mmx;
return;
}
#endif
llprintf(LOG_ACCEL, "autocrop_init_mm_accel: no compatible acceleration methods found\n");
}
static int blank_line_Y_INIT(uint8_t *data, int length)
{
autocrop_init_mm_accel();
return (*blank_line_Y)(data, length);
}
static int blank_line_UV_INIT(uint8_t *data, int length)
{
autocrop_init_mm_accel();
return (*blank_line_UV)(data, length);
}
static int blank_line_YUY2_INIT(uint8_t *data, int length)
{
autocrop_init_mm_accel();
return (*blank_line_YUY2)(data, length);
}
/*
* Analyze frame
* - if frame needs cropping set crop_top & crop_bottom
*/
#ifdef MARK_FRAME
int dbg_top=0, dbg_bottom=0;
#endif
static int analyze_frame_yv12(autocrop_post_plugin_t *this, vo_frame_t *frame,
int *crop_top, int *crop_bottom)
{
int y;
int ypitch = frame->pitches[0];
int upitch = frame->pitches[1];
int vpitch = frame->pitches[2];
uint8_t *ydata = frame->base[0];
uint8_t *udata = frame->base[1];
uint8_t *vdata = frame->base[2];
int max_crop = (frame->height / 4) / 2; /* 4:3 --> 16:9 */
int logo_width = frame->width * this->logo_width / 100;
int check_width = frame->width - logo_width;
/* from top -> down */
ydata += 8 * ypitch; /* skip 8 first lines */
udata += 4 * upitch;
vdata += 4 * vpitch;
for(y = 8; y <= max_crop *2 /* *2 = 20:9+subs -> 16:9 */ ; y += 2) {
if( ! ( blank_line_UV(udata, check_width/2) ||
blank_line_UV(udata+logo_width/2, check_width/2) ) ||
! ( blank_line_UV(vdata, check_width/2) ||
blank_line_UV(vdata+logo_width/2, check_width/2) ) ||
! ( blank_line_Y( ydata, check_width ) ||
blank_line_Y( ydata+logo_width, check_width ) ) ||
! ( blank_line_Y( ydata+ypitch, check_width ) ||
blank_line_Y( ydata+ypitch+logo_width,check_width ) )) {
break;
} else {
ydata += 2 * ypitch;
udata += upitch;
vdata += vpitch;
}
}
*crop_top = y>8 ? y : 0;
/* from bottom -> up */
ydata = frame->base[0] + ((frame->height-4) -1 ) * ypitch;
udata = frame->base[1] + ((frame->height-4)/2 -1 ) * upitch;
vdata = frame->base[2] + ((frame->height-4)/2 -1 ) * vpitch;
for(y = frame->height - 5; y >= frame->height-max_crop; y -=2 ) {
if( ! blank_line_Y(ydata, frame->width) ||
! blank_line_Y(ydata-ypitch, frame->width) ||
! blank_line_UV(udata, frame->width/2) ||
! blank_line_UV(vdata, frame->width/2)) {
break;
} else {
ydata -= 2*ypitch;
udata -= upitch;
vdata -= vpitch;
}
}
*crop_bottom = y;
/* test for black in center - don't crop if frame is empty */
if(*crop_top >= max_crop*2 && *crop_bottom <= frame->height-max_crop) {
int center_line = (frame->height >> 2) << 1;
ydata = frame->base[0] + (center_line )*ypitch;
udata = frame->base[1] + (center_line/2)*upitch;
vdata = frame->base[2] + (center_line/2)*vpitch;
if( blank_line_Y(ydata, frame->width) &&
blank_line_Y(ydata+ypitch, frame->width) &&
blank_line_UV(udata, frame->width/2) &&
blank_line_UV(vdata, frame->width/2)) {
llprintf(LOG_DEBUG, "not cropping black frame\n");
return 0;
}
}
return 1;
}
static int analyze_frame_yuy2(autocrop_post_plugin_t *this, vo_frame_t *frame,
int *crop_top, int *crop_bottom)
{
int y;
int pitch = frame->pitches[0];
uint8_t *data = frame->base[0];
int max_crop = (frame->height / 4) / 2; /* 4:3 --> 16:9 */
int logo_width = frame->width * this->logo_width / 100;
int check_width = frame->width - logo_width;
/* from top -> down */
data += 6 * pitch; /* skip 6 first lines */
for(y = 6; y <= max_crop *2 /* *2 = 20:9+subs -> 16:9 */ ; y ++)
if( ! ( blank_line_YUY2(data, check_width*2) ||
blank_line_YUY2(data+2*logo_width, check_width*2)))
break;
else
data += pitch;
*crop_top = y;
/* from bottom -> up */
data = frame->base[0] + ((frame->height-4) -1 ) * pitch;
for(y = frame->height - 5; y >= frame->height-max_crop; y -- )
if( ! blank_line_YUY2(data, frame->width * 2))
break;
else
data -= pitch;
*crop_bottom = y;
/* test for black in center - don't crop if frame is empty */
if(*crop_top >= max_crop*2 && *crop_bottom <= frame->height-max_crop) {
data = frame->base[0] + (frame->height/2)*pitch;
if( blank_line_YUY2(data, frame->width * 2)) {
llprintf(LOG_DEBUG, "not cropping black frame\n");
return 0;
}
}
return 1;
}
#define AVARDS_FN(fn_name, pixel_pitch, top_overscan_compensate) \
static int fn_name (autocrop_post_plugin_t *this, vo_frame_t *frame, int *crop_top, int *crop_bottom) \
{ \
int i, top, bottom, histogram[256]; \
uint8_t *left, *right; \
uint8_t *img = frame->base[0]; \
const int bottom_overscan_compensate = 4; \
const int ignored_side_width = 16 * pixel_pitch; \
const int width = frame->width * pixel_pitch; \
const int top_logo_width = (frame->width * this->logo_width / 100) * pixel_pitch; \
const int bottom_logo_width = this->subs_detect ? -1: top_logo_width - 1; \
const int pitch = frame->pitches[0]; \
const int half_height = frame->height / 2; \
\
memset(histogram, 0, sizeof(histogram)); \
left = img + top_overscan_compensate * pitch; \
right = left + width - ignored_side_width; \
left += ignored_side_width; \
while (left < right) { \
histogram[*left]++; \
left += pixel_pitch; \
} \
\
int bar_tone = 0; \
for (i = 1; i < 256; ++i) { \
if (histogram[i] > histogram[bar_tone]) \
bar_tone = i; \
} \
const uint8_t min_bar_tone = (bar_tone > this->bar_tone_tolerance) ? bar_tone - this->bar_tone_tolerance: 0; \
const uint8_t max_bar_tone = (bar_tone + this->bar_tone_tolerance < 255) ? bar_tone + this->bar_tone_tolerance: 255; \
\
for (top = top_overscan_compensate; top < half_height; ++top) { \
left = img + top * pitch; \
right = left + width - pixel_pitch - ignored_side_width; \
left += ignored_side_width; \
while (left <= right && *left >= min_bar_tone && *left <= max_bar_tone) \
left += pixel_pitch; \
while (right > left && *right >= min_bar_tone && *right <= max_bar_tone) \
right -= pixel_pitch; \
if ((right - left) > top_logo_width) \
break; \
} \
\
for (bottom = frame->height - 1 - bottom_overscan_compensate; bottom > half_height; --bottom) { \
left = img + bottom * pitch; \
right = left + width - pixel_pitch - ignored_side_width; \
left += ignored_side_width; \
while (left <= right && *left >= min_bar_tone && *left <= max_bar_tone) \
left += pixel_pitch; \
while (right > left && *right >= min_bar_tone && *right <= max_bar_tone) \
right -= pixel_pitch; \
if ((right - left) > bottom_logo_width) \
break; \
} \
\
*crop_top = top; \
*crop_bottom = bottom; \
return ((bottom - top) > 0); \
}
AVARDS_FN(analyze_frame_yv12_avards, 1, 8)
AVARDS_FN(analyze_frame_yuy2_avards, 2, 6)
static void analyze_frame(vo_frame_t *frame, int *crop_top, int *crop_bottom)
{
post_video_port_t *port = (post_video_port_t *)frame->port;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
int start_line, end_line;
#ifdef HAVE_PROC_PROVIDE_STANDARD_FRAME_DATA
if ((frame->format != XINE_IMGFMT_YV12 && frame->format != XINE_IMGFMT_YUY2) && frame->proc_provide_standard_frame_data) {
xine_current_frame_data_t data;
memset(&data, 0, sizeof(data));
frame->proc_provide_standard_frame_data(frame->next, &data);
if (data.img_size > this->img_size) {
free(this->img);
this->img = calloc(1, data.img_size);
if (!this->img) {
this->img_size = 0;
return;
}
this->img_size = data.img_size;
}
data.img = this->img;
frame->proc_provide_standard_frame_data(frame->next, &data);
if (data.format == XINE_IMGFMT_YV12) {
this->frame.pitches[0] = frame->width;
this->frame.pitches[1] = frame->width / 2;
this->frame.pitches[2] = frame->width / 2;
this->frame.base[0] = this->img;
this->frame.base[1] = this->img + frame->width * frame->height;
this->frame.base[2] = this->img + frame->width * frame->height + frame->width * frame->height / 4;
} else if (data.format == XINE_IMGFMT_YUY2) {
this->frame.pitches[0] = frame->width * 2;
this->frame.base[0] = this->img;
}
this->frame.format = data.format;
this->frame.height = frame->height;
this->frame.width = frame->width;
frame = &this->frame;
}
#endif
int result = 0;
if (this->use_avards_analysis) {
if (frame->format == XINE_IMGFMT_YV12)
result = analyze_frame_yv12_avards(this, frame, &start_line, &end_line);
else if (frame->format == XINE_IMGFMT_YUY2)
result = analyze_frame_yuy2_avards(this, frame, &start_line, &end_line);
} else {
if(frame->format == XINE_IMGFMT_YV12)
result = analyze_frame_yv12(this, frame, &start_line, &end_line);
else if(frame->format == XINE_IMGFMT_YUY2)
result = analyze_frame_yuy2(this, frame, &start_line, &end_line);
#if defined(__MMX__)
_mm_empty();
#endif
}
/* Ignore empty frames */
if(!result) {
llprintf(LOG_TRACE, "not cropping black frame\n");
return;
}
#ifdef MARK_FRAME
dbg_top = start_line; dbg_bottom = end_line;
#endif
if(this->stabilize) {
int bottom = frame->height - end_line;
int wide = 0;
/* bottom bar size */
if(bottom < frame->height/32) {
llprintf(LOG_TRACE, "bottom: %d -> 4:3 ", end_line);
end_line = frame->height - 1; /* no cropping */
} else if(bottom < frame->height*3/32) {
llprintf(LOG_TRACE, "bottom: %d -> 14:9 (%d) ", end_line, frame->height * 15 / 16 - 1);
end_line = frame->height * 15 / 16 - 1; /* 14:9 */
} else if(bottom < frame->height*3/16) {
llprintf(LOG_TRACE, "bottom: %d -> 16:9 (%d) ", end_line, frame->height * 7 / 8 - 1);
end_line = frame->height * 7 / 8 - 1; /* 16:9 */
wide = 1;
} else {
llprintf(LOG_TRACE, "bottom: %d -> 20:9 (%d) ", end_line, frame->height * 3 / 4 - 1);
end_line = frame->height * 3 / 4 - 1; /* 20:9 */
wide = 2;
}
/* top bar size */
if(start_line < frame->height/32) {
llprintf(LOG_TRACE, "top: %3d -> 4:3 \n", start_line);
start_line = 0; /* no cropping */
} else if(start_line < frame->height*3/32) {
llprintf(LOG_TRACE, "top: %3d -> 14:9 (%d)\n", start_line, frame->height / 16);
start_line = frame->height / 16; /* 14:9 */
} else if(start_line < frame->height*3/16 || wide) {
llprintf(LOG_TRACE, "top: %3d -> 16:9 (%d)\n", start_line, frame->height / 8);
start_line = frame->height / 8; /* 16:9 */
} else {
llprintf(LOG_TRACE, "top: %3d -> 20:9 (%d)\n", start_line, frame->height / 4);
start_line = frame->height / 4; /* 20:9 */
wide++;
}
switch(wide) {
case 3: start_line -= frame->height / 8;
if(start_line < 0)
start_line = 0;
llprintf(LOG_TRACE, " wide -> center top\n");
case 2: end_line += frame->height / 8;
if(end_line >= frame->height)
end_line = frame->height-1;
llprintf(LOG_TRACE, " wide -> center bottom\n");
default:;
}
} else {
if(start_line > (frame->height/8 *2)) /* *2 --> 20:9 -> 16:9 + subtitles */
start_line = frame->height/8 *2 ;
if(end_line < (frame->height*7/8))
end_line = frame->height*7/8;
if(start_line > (frame->height/8)) {
/* if wider than 16:9, prefer cropping top if subtitles are inside bottom bar */
if(start_line + (frame->height - end_line) > frame->height/4) {
int diff = start_line + (frame->height - end_line) - frame->height/4;
diff &= ~1;
llprintf(LOG_TRACE, "balance: %d,%d -> %d,%d\n",
start_line, end_line,
start_line, end_line + diff);
#if 0
/* this moves image to top (crop only top) */
end_line += diff;
#endif
#if 0
/* this moves image to center */
/* may cause problems with subtitles ... */
start_line -= diff;
#endif
#if 1
/* this moves image to center when there are no
detected subtitles inside bottom bar */
if(this->cropping_active && this->height_limit_active) {
int reserved = this->height_limit - end_line;
if(reserved>0) {
end_line += reserved;
diff -= reserved;
}
}
start_line -= diff;
#endif
#if 0
/* do nothing - image will be centered in video out.
- problems with subtitles using unscaled OSD */
#endif
}
}
/* stay inside frame and forget very small bars */
if(start_line <= 8)
start_line = 0;
if(end_line >= (frame->height-6))
end_line = frame->height;
if(start_line < frame->height/12 || end_line > frame->height*11/12) {
/* Small bars -> crop only detected borders */
if(start_line || end_line < frame->height-1) {
llprintf(LOG_TRACE, "Small bars -> <16:9 : start_line = %d end_line = %d (%s%d t%d)\n",
start_line, end_line,
this->height_limit_active ? "height limit " : "",
this->height_limit,
this->height_limit_active ? this->height_limit_timer : 0);
}
} else {
/* Large bars -> crop to 16:9 */
llprintf(LOG_TRACE, "Large bars -> 16:9 : start_line = %d end_line = %d (%s%d t%d)\n",
start_line, end_line,
this->height_limit_active ? "height limit " : "",
this->height_limit,
this->height_limit_active ? this->height_limit_timer : 0);
if(start_line < frame->height / 8)
start_line = frame->height / 8;
if(end_line < frame->height * 7 / 8)
end_line = frame->height * 7 / 8;
}
}
if (this->overscan_compensate > 0) {
int h = (frame->height * this->overscan_compensate) / (2*1000);
if (start_line < h)
h = start_line;
if ((frame->height - end_line) < h)
h = frame->height - end_line;
start_line -= h;
end_line += h;
}
/* adjust start and stop to even lines */
(*crop_top) = (start_line) & (~1);
(*crop_bottom) = (end_line + 1) & (~1);
}
#ifdef MARK_FRAME
static void mark_frame_yv12(autocrop_post_plugin_t *this,
vo_frame_t *frame, int *crop_top, int *crop_bottom)
{
int ypitch = frame->pitches[0];
int upitch = frame->pitches[1];
int vpitch = frame->pitches[2];
uint8_t *ydata = frame->base[0];
uint8_t *udata = frame->base[1];
uint8_t *vdata = frame->base[2];
/* draw markers to detected boundaries and expected boundaries */
if(*crop_top > 4 && *crop_top < 200) {
ydata = frame->base[0] + ((*crop_top)-2)*ypitch;
udata = frame->base[1] + ((*crop_top)/2 -1)*upitch;
memset(ydata, 0xff, frame->width/10);
memset(ydata+ypitch, 0xff, frame->width/10);
memset(udata, 0xff, frame->width/2/10);
if(dbg_top < *crop_top) dbg_top = *crop_top;
ydata = frame->base[0] + ((dbg_top - *crop_top))*ypitch;
udata = frame->base[1] + ((dbg_top - *crop_top)/2)*upitch;
memset(ydata, 0x80, frame->width/2);
memset(ydata+ypitch, 0x80, frame->width/2);
memset(udata, 0xff, frame->width/2/2);
}
if(*crop_bottom > 300) {
if(*crop_bottom < frame->height - 2) {
ydata = frame->base[0] + (*crop_bottom + 2)*ypitch;
udata = frame->base[1] + ((*crop_bottom)/2)*upitch;
memset(ydata, 0xff, frame->width);
memset(ydata+ypitch, 0xff, frame->width);
memset(udata, 0xff, frame->width/2);
}
if(dbg_bottom - *crop_top - 2 < frame->height) {
ydata = frame->base[0] + (dbg_bottom - *crop_top - 2)*ypitch;
udata = frame->base[1] + (dbg_bottom - *crop_top - 2)/2*upitch;
memset(ydata, 0x80, frame->width/2);
memset(ydata+ypitch, 0xff, frame->width/2);
memset(udata, 0xff, frame->width/2/2);
}
}
if(frame->height > 500) {
/* TODO: use frame height instead of assuming 576 ... -> 72 */
vdata = frame->base[2] + ((72-*crop_top)/2)*vpitch;
vdata = frame->base[2] + (72/2)*vpitch;
memset(vdata, 0xff, frame->width/2);
vdata = frame->base[2] + ((frame->height-72+(576-*crop_bottom))/2)*vpitch;
vdata = frame->base[2] + ((frame->height-72)/2)*vpitch;
memset(vdata, 0xff, frame->width/2);
}
}
#endif
/*
* crop frame by copying
*/
static int crop_copy_yv12(vo_frame_t *frame, xine_stream_t *stream)
{
post_video_port_t *port = (post_video_port_t *)frame->port;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
vo_frame_t *new_frame;
int y, result;
int yp = frame->pitches[0], yp2;
int up = frame->pitches[1], up2;
int vp = frame->pitches[2], vp2;
uint8_t *ydata = frame->base[0], *ydata2;
uint8_t *udata = frame->base[1], *udata2;
uint8_t *vdata = frame->base[2], *vdata2;
int new_height;
double new_ratio;
/* top bar */
ydata += this->start_line * yp;
udata += (this->start_line/2) * up;
vdata += (this->start_line/2) * vp;
new_height = this->end_line - this->start_line;
new_ratio = 12.0/9.0 * ((double)frame->height / (double)new_height);
new_frame = port->original_port->get_frame(port->original_port,
frame->width, new_height,
new_ratio, frame->format,
frame->flags | VO_BOTH_FIELDS);
/* ??? */
frame->ratio = new_frame->ratio;
_x_post_frame_copy_down(frame, new_frame);
yp2 = new_frame->pitches[0];
up2 = new_frame->pitches[1];
vp2 = new_frame->pitches[2];
ydata2 = new_frame->base[0];
udata2 = new_frame->base[1];
vdata2 = new_frame->base[2];
/*
TODO:
save channel logo mask (from top)
- no changes in 3 sec -> next time crop it out ...
*/
for(y=0; y < new_height/2; y++) {
xine_fast_memcpy(ydata2, ydata, frame->width);
ydata += yp;
ydata2 += yp2;
xine_fast_memcpy(ydata2, ydata, frame->width);
ydata += yp;
ydata2 += yp2;
xine_fast_memcpy(udata2, udata, frame->width/2);
udata += up;
udata2 += up2;
xine_fast_memcpy(vdata2, vdata, frame->width/2);
vdata += vp;
vdata2 += vp2;
}
#ifdef MARK_FRAME
mark_frame_yv12(this, new_frame, &this->start_line, &this->end_line);
#endif
result = new_frame->draw(new_frame, stream);
_x_post_frame_copy_up(frame, new_frame);
new_frame->free(new_frame);
return result;
}
static int crop_copy_yuy2(vo_frame_t *frame, xine_stream_t *stream)
{
post_video_port_t *port = (post_video_port_t *)frame->port;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
vo_frame_t *new_frame;
int y, result;
int p = frame->pitches[0], p2;
uint8_t *data = frame->base[0], *data2;
int new_height;
double new_ratio;
/* top bar */
data += this->start_line * p;
new_height = this->end_line - this->start_line;
new_ratio = 12.0/9.0 * ((double)frame->height / (double)new_height);
new_frame = port->original_port->get_frame(port->original_port,
frame->width, new_height,
new_ratio, frame->format,
frame->flags | VO_BOTH_FIELDS);
/* ??? */
frame->ratio = new_frame->ratio;
_x_post_frame_copy_down(frame, new_frame);
p2 = new_frame->pitches[0];
data2 = new_frame->base[0];
for(y=0; y < new_height; y++) {
xine_fast_memcpy(data2, data, frame->width);
data += p;
data2 += p2;
}
result = new_frame->draw(new_frame, stream);
_x_post_frame_copy_up(frame, new_frame);
new_frame->free(new_frame);
return result;
}
/*
* Frame handling
*/
static int autocrop_draw(vo_frame_t *frame, xine_stream_t *stream)
{
post_video_port_t *port = (post_video_port_t *)frame->port;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
int result, start_line, end_line;
if(!this->autodetect) {
pthread_mutex_lock(&this->crop_lock);
this->cropping_active = 1;
this->start_line = frame->height/8;
this->end_line = frame->height*7/8;
this->crop_total = frame->height/4;
this->use_driver_crop = this->always_use_driver_crop || (frame->format != XINE_IMGFMT_YV12 && frame->format != XINE_IMGFMT_YUY2);
pthread_mutex_unlock(&this->crop_lock);
if (frame->bad_frame || this->use_driver_crop) {
_x_post_frame_copy_down(frame, frame->next);
result = frame->next->draw(frame->next, stream);
_x_post_frame_copy_up(frame, frame->next);
} else if(frame->format == XINE_IMGFMT_YV12)
result = crop_copy_yv12(frame, stream);
else /*if(frame->format == XINE_IMGFMT_YUY2)*/
result = crop_copy_yuy2(frame, stream);
return result;
}
int autodetect_rate = this->autodetect_rate;
int cropping_active = this->cropping_active;
/* use pts jumps to track stream changes (and seeks) */
if(cropping_active && frame->pts > 0) {
if(this->prev_pts>0) {
int64_t dpts = frame->pts - this->prev_pts;
if(dpts < INT64_C(-30*90000) || dpts > INT64_C(30*90000)) { /* 30 sec */
if(this->height_limit_active) {
this->height_limit_timer = this->subs_detect_lifetime / 2;
llprintf(LOG_DEBUG, "short pts jump reseted height limit\n");
}
}
if(dpts < INT64_C(-30*60*90000) || dpts > INT64_C(30*60*90000)) { /* 30 min */
cropping_active = 0;
llprintf(LOG_DEBUG, "long pts jump reseted cropping\n");
}
}
this->prev_pts = frame->pts;
}
if (cropping_active) {
start_line = this->stabilized_start_line;
end_line = this->stabilized_end_line;
} else {
start_line = 0;
end_line = frame->height;
}
/* Analyze frame for letterbox borders */
if(!frame->bad_frame && (this->analyze_timer % autodetect_rate) == 0) {
analyze_frame(frame, &start_line, &end_line);
int detected_end_line = end_line;
/* activate cropping if bars are large enough */
if(!cropping_active && (start_line > 10 || end_line < (frame->height - 10))) {
cropping_active = 1;
this->stabilized_start_line = this->start_line = 0;
this->stabilized_end_line = this->end_line = this->detected_end_line = this->prev_detected_end_line = frame->height;
this->stabilize_timer = this->stabilize_time;
this->prev_pts = -1;
this->height_limit_active = 0;
this->end_line_stabilize_timer = this->subs_detect_stabilize_time;
}
if(cropping_active && this->subs_detect) {
/* no change unless different values for several frames */
if (abs(this->detected_end_line - end_line) > 5) {
this->end_line_stabilize_timer -= autodetect_rate;
if (this->end_line_stabilize_timer <= 0) {
this->detected_end_line = end_line;
this->end_line_stabilize_timer = this->subs_detect_stabilize_time;
}
} else
this->end_line_stabilize_timer = this->subs_detect_stabilize_time;
if(this->height_limit_active) {
this->height_limit_timer -= autodetect_rate;
if (this->height_limit_timer <= 0) {
this->height_limit_active = 0;
llprintf(LOG_DEBUG, "height limit timer expired\n");
}
}
/* apply height limit */
if(this->height_limit_active && end_line < this->height_limit)
end_line = this->height_limit;
}
/* no change unless different values for several frames */
if(abs(start_line - this->stabilized_start_line) > 5 || abs(end_line - this->stabilized_end_line) > 5) {
this->stabilize_timer -= autodetect_rate;
if(this->stabilize_timer > 0) {
start_line = this->stabilized_start_line;
end_line = this->stabilized_end_line;
}
else {
/* ignore very small bars */
if(start_line <= 10 && end_line >= (frame->height - 10))
cropping_active = 0;
this->stabilize_timer = this->stabilize_time;
llprintf(LOG_DEBUG, "stabilized start: %d -> %d, end %d -> %d\n",
this->stabilized_start_line, start_line,
this->stabilized_end_line, end_line);
}
} else {
this->stabilize_timer = this->stabilize_time;
start_line = this->stabilized_start_line;
end_line = this->stabilized_end_line;
}
/* handle fixed subtitles inside bottom bar */
if(cropping_active && this->subs_detect) {
if(this->height_limit_active && abs(this->stabilized_start_line - start_line) > 5) {
/* reset height limit if top bar changes */
this->height_limit_active = 0;
end_line = this->detected_end_line = detected_end_line;
llprintf(LOG_DEBUG, "height limit reset, top bar moved from %d -> %d, bottom now %d\n", this->stabilized_start_line, start_line, end_line);
} else if (this->detected_end_line > (this->prev_detected_end_line + 5)) {
if(!this->height_limit_active || this->height_limit < this->detected_end_line) {
/* start or increase height limit */
if (this->height_limit_active)
llprintf(LOG_DEBUG, "height limit %d -> %d, prev bottom %d\n", this->height_limit, this->detected_end_line, this->prev_detected_end_line);
else
llprintf(LOG_DEBUG, "activate height limit %d, prev bottom %d\n", this->detected_end_line, this->prev_detected_end_line);
this->height_limit = this->detected_end_line;
this->height_limit_timer = this->subs_detect_lifetime;
this->height_limit_active = 1;
} else if(this->height_limit_active && this->height_limit_timer < (this->subs_detect_lifetime / 4)) {
/* keep height limit timer running */
this->height_limit_timer = this->subs_detect_lifetime / 2;
llprintf(LOG_DEBUG, "height_limit_timer increment bottom %d;%d -> %d\n", this->prev_detected_end_line, this->detected_end_line, detected_end_line);
}
}
this->prev_detected_end_line = this->detected_end_line;
}
this->stabilized_start_line = start_line;
this->stabilized_end_line = end_line;
}
/* update frame counter */
++this->analyze_timer;
/* "soft start" */
if(cropping_active && this->soft_start) {
if(this->start_line != start_line) {
int diff = this->start_line - start_line;
if(diff < -this->soft_start_step)
diff = -this->soft_start_step;
else if(diff > this->soft_start_step)
diff = this->soft_start_step;
start_line = this->start_line - diff;
}
if(this->end_line != end_line) {
int diff = this->end_line - end_line;
if(diff < -this->soft_start_step)
diff = -this->soft_start_step;
else if(diff > this->soft_start_step)
diff = this->soft_start_step;
end_line = this->end_line - diff;
}
}
this->prev_height = frame->height;
this->prev_width = frame->width;
if (cropping_active && (start_line != this->start_line || end_line != this->end_line)) {
llprintf(LOG_DEBUG, "active start: %d -> %d, end %d -> %d\n",
this->start_line, start_line,
this->end_line, end_line);
}
if (this->cropping_active != cropping_active)
llprintf(LOG_DEBUG, "draw: active %d -> %d\n", this->cropping_active, cropping_active);
pthread_mutex_lock(&this->crop_lock);
this->cropping_active = cropping_active;
this->start_line = start_line;
this->end_line = end_line;
this->crop_total = start_line + frame->height - end_line;
this->use_driver_crop = this->always_use_driver_crop || (frame->format != XINE_IMGFMT_YV12 && frame->format != XINE_IMGFMT_YUY2);
pthread_mutex_unlock(&this->crop_lock);
/*
* do cropping
* - using frame->crop_... does not seem to work with my xv and xine-lib-1.1.1.
* - maybe cropping could be done by adjusting y/u/v data pointers
* and height of frame ?
* -> no time-consuming copying
*/
if(frame->bad_frame || !cropping_active || this->use_driver_crop) {
_x_post_frame_copy_down(frame, frame->next);
result = frame->next->draw(frame->next, stream);
_x_post_frame_copy_up(frame, frame->next);
} else if(frame->format == XINE_IMGFMT_YV12)
result = crop_copy_yv12(frame, stream);
else /*if(frame->format == XINE_IMGFMT_YUY2)*/
result = crop_copy_yuy2(frame, stream);
return result;
}
static vo_frame_t *autocrop_get_frame(xine_video_port_t *port_gen,
uint32_t width, uint32_t height,
double ratio, int format, int flags)
{
post_video_port_t *port = (post_video_port_t *)port_gen;
post_plugin_t *this_gen = port->post;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)this_gen;
int cropping_active = this->cropping_active;
if (ratio <= 0.0) {
if (height > 1)
ratio = (double)width / (double)height;
}
/* Crop only SDTV 4:3 frames ... */
int intercept = ((format == XINE_IMGFMT_YV12 || format == XINE_IMGFMT_YUY2 || this->has_driver_crop) &&
FABS(ratio - 4.0/3.0) < 0.1 &&
width >= 240 && width <= 768 &&
height >= 288 && height <= 576);
if(cropping_active && !intercept) {
cropping_active = 0;
llprintf(LOG_DEBUG, "get_frame: deactivate ratio: %lf width: %d height: %d\n", ratio, width, height);
}
/* reset when format changes */
if (cropping_active && this->autodetect && (height != this->prev_height || width != this->prev_width)) {
cropping_active = 0;
llprintf(LOG_DEBUG, "get_frame: deactivate width %d -> %d height %d -> %d\n", this->prev_width, width, this->prev_height, height);
}
/* set new ratio when using driver crop */
if (cropping_active && this->use_driver_crop) {
if (this->autodetect) {
int new_height = this->end_line - this->start_line;
if (new_height > 1 && new_height != (int)height)
ratio *= (double)height / (double)new_height;
} else {
ratio *= 4.0 / 3.0;
}
}
_x_post_rewire(this_gen);
vo_frame_t *frame = port->original_port->get_frame(port->original_port, width, height, ratio, format, flags);
if (frame) {
/* set cropping when using driver crop */
if (cropping_active && this->use_driver_crop) {
if (this->autodetect) {
frame->crop_top = this->start_line;
frame->crop_bottom = (height - this->end_line);
} else {
frame->crop_top = frame->crop_bottom = height / 8;
}
}
/* intercept frame for analysis and crop-by-copy */
if (intercept && format != XINE_IMGFMT_YV12 && format != XINE_IMGFMT_YUY2) {
#ifdef HAVE_PROC_PROVIDE_STANDARD_FRAME_DATA
if (!frame->proc_provide_standard_frame_data) {
#endif
llprintf(LOG_DEBUG, "get_frame: deactivate because missing provide_standard_frame_data feature\n");
cropping_active = 0;
intercept = 0;
#ifdef HAVE_PROC_PROVIDE_STANDARD_FRAME_DATA
}
#endif
}
if (intercept) {
_x_post_inc_usage(port);
frame = _x_post_intercept_video_frame(frame, port);
}
}
this->cropping_active = cropping_active;
return frame;
}
static int autocrop_intercept_ovl(post_video_port_t *port)
{
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
if (!this->cropping_active)
return 0;
return 1;
}
static int32_t autocrop_overlay_add_event(video_overlay_manager_t *this_gen, void *event_gen)
{
post_video_port_t *port = _x_post_ovl_manager_to_port(this_gen);
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)port->post;
video_overlay_event_t *event = (video_overlay_event_t *)event_gen;
pthread_mutex_lock(&this->crop_lock);
int cropping_active = this->cropping_active;
int crop_total = this->crop_total;
int use_driver_crop = this->use_driver_crop;
int start_line = this->start_line;
pthread_mutex_unlock(&this->crop_lock);
if(cropping_active && crop_total>10) {
if (event->event_type == OVERLAY_EVENT_SHOW
#ifdef VO_CAP_CUSTOM_EXTENT_OVERLAY
/* Do not move overlay if video_out has independent video and OSD resolutions */
&& event->object.overlay
&& ( event->object.overlay->extent_width <= 0 ||
event->object.overlay->extent_height <= 0)
#endif
) {
switch (event->object.object_type) {
case 0:
/* regular subtitle */
/* Subtitle overlays must be coming somewhere inside xine engine */
if (use_driver_crop) {
if(this->has_driver_crop) {
if(!event->object.overlay->unscaled || !this->has_unscaled_overlay) {
event->object.overlay->y -= crop_total;
}
} else {
/* object is moved crop_top amount in video_out */
if(event->object.overlay->unscaled && this->has_unscaled_overlay) {
/* cancel incorrect move that will be done in video_out */
event->object.overlay->y += start_line;
} else {
/* move crop_bottom pixels up */
event->object.overlay->y -= (crop_total - start_line);
}
}
/* when using cropping overlays are moved in video_out */
llprintf(LOG_INFO, "autocrop_overlay_add_event: subtitle event untouched\n");
} else {
/* when cropping here subtitles coming from inside of xine must be re-positioned */
if(!event->object.overlay->unscaled || !this->has_unscaled_overlay) {
event->object.overlay->y -= crop_total;
llprintf(LOG_INFO, "autocrop_overlay_add_event: subtitle event moved up\n");
}
}
break;
case 1:
/* menu overlay */
/* All overlays coming from VDR have this type */
{
#ifdef DVDTEST
int dvd_menu = 0;
if (stream->input_plugin) {
if (stream->input_plugin->get_capabilities (stream->input_plugin) &
INPUT_CAP_SPULANG) {
*((int *)lang) = 0; /* channel */
if (stream->input_plugin->get_optional_data (stream->input_plugin, lang,
INPUT_OPTIONAL_DATA_SPULANG)
== INPUT_OPTIONAL_SUCCESS)
if(!strcmp(lang, "menu"))
dvd_menu = 1; /* -> cropping off */
/* should turn on when not in menu ... -> where ? */
}
}
#endif
if (use_driver_crop) {
if(!event->object.overlay->unscaled || !this->has_unscaled_overlay) {
event->object.overlay->y += start_line;//crop_total;
}
}
}
break;
default:;
}
}
}
return port->original_manager->add_event(port->original_manager, event_gen);
}
static void autocrop_video_close(xine_video_port_t *port_gen, xine_stream_t *stream)
{
post_video_port_t *port = (post_video_port_t *)port_gen;
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *) port->post;
if (this->cropping_active) {
this->cropping_active = 0;
llprintf(LOG_DEBUG, "deactivate because video close\n");
}
port->original_port->close(port->original_port, stream);
port->stream = NULL;
_x_post_dec_usage(port);
}
/*
* Parameter functions
*/
static xine_post_api_descr_t *autocrop_get_param_descr(void)
{
return &autocrop_param_descr;
}
static int autocrop_set_parameters(xine_post_t *this_gen, void *param_gen)
{
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)this_gen;
autocrop_parameters_t *param = (autocrop_parameters_t *)param_gen;
this->autodetect = param->enable_autodetect;
this->autodetect_rate = param->autodetect_rate;
this->subs_detect = param->enable_subs_detect;
this->subs_detect_lifetime = param->subs_detect_lifetime;
this->subs_detect_stabilize_time = param->subs_detect_stabilize_time;
this->soft_start = param->soft_start;
this->soft_start_step = param->soft_start_step;
this->stabilize = param->stabilize;
this->stabilize_time = param->stabilize_time;
this->always_use_driver_crop = param->use_driver_crop && this->has_driver_crop;
this->logo_width = param->logo_width;
this->use_avards_analysis = param->use_avards_analysis;
this->overscan_compensate = param->overscan_compensate;
this->bar_tone_tolerance = param->bar_tone_tolerance;
this->debug_level = param->debug_level;
llprintf(LOG_DEBUG, "autocrop_set_parameters: "
"autodetect=%d autodetect_rate=%d logo_width=%d "
"subs_detect=%d subs_detect_lifetime=%d subs_detect_stabilize_time=%d "
"soft_start=%d soft_start_step=%d "
"stabilize=%d stabilize_time=%d use_driver_crop=%d "
"use_avards_analysis=%d overscan_compensate=%d bar_tone_tolerance=%d\n",
this->autodetect, this->autodetect_rate, this->logo_width,
this->subs_detect, this->subs_detect_lifetime, this->subs_detect_stabilize_time,
this->soft_start, this->soft_start_step,
this->stabilize, this->stabilize_time, this->always_use_driver_crop,
this->use_avards_analysis, this->overscan_compensate, this->bar_tone_tolerance);
return 1;
}
static int autocrop_get_parameters(xine_post_t *this_gen, void *param_gen)
{
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *)this_gen;
autocrop_parameters_t *param = (autocrop_parameters_t *)param_gen;
param->enable_autodetect = this->autodetect;
param->autodetect_rate = this->autodetect_rate;
param->enable_subs_detect = this->subs_detect;
param->subs_detect_lifetime = this->subs_detect_lifetime;
param->subs_detect_stabilize_time = this->subs_detect_stabilize_time;
param->soft_start = this->soft_start;
param->soft_start_step = this->soft_start_step;
param->stabilize = this->stabilize;
param->stabilize_time = this->stabilize_time;
param->use_driver_crop = this->always_use_driver_crop;
param->logo_width = this->logo_width;
param->use_avards_analysis = this->use_avards_analysis;
param->overscan_compensate = this->overscan_compensate;
param->bar_tone_tolerance = this->bar_tone_tolerance;
param->debug_level = this->debug_level;
llprintf(LOG_DEBUG, "autocrop_get_parameters: "
"autodetect=%d autodetect_rate=%d logo_width=%d "
"subs_detect=%d subs_detect_lifetime=%d subs_detect_stabilize_time=%d "
"soft_start=%d soft_start_step=%d "
"stabilize=%d stabilize_time=%d use_driver_crop=%d "
"use_avards_analysis=%d overscan_compensate=%d bar_tone_tolerance=%d\n",
this->autodetect, this->autodetect_rate, this->logo_width,
this->subs_detect, this->subs_detect_lifetime, this->subs_detect_stabilize_time,
this->soft_start, this->soft_start_step,
this->stabilize, this->stabilize_time, this->always_use_driver_crop,
this->use_avards_analysis, this->overscan_compensate, this->bar_tone_tolerance);
return 1;
}
static char *autocrop_get_help(void) {
return _("The autocrop plugin is meant to take 4:3 letterboxed frames and "
"convert them to 16:9 by removing black bars on the top and bottom "
"of the frame.\n"
"\n"
"Parameters\n"
" enable_autodetect: Enable automatic letterbox detection\n"
" autodetect_rate: Rate of automatic letterbox detection\n"
" stabilize_time: Number of frames with equal bars before cropping value changes\n"
" enable_subs_detect: Enable automatic subtitle detection inside bottom bar\n"
" subs_detect_lifetime: Lifetime of automatic subtitle detection\n"
" subs_detect_stabilize_time: Stabilize time of automatic subtitle detection\n"
" soft_start: Enable soft start of cropping\n"
" soft_start_step: Soft start step width of cropping\n"
" stabilize: Stabilize cropping to 14:9, 16:9, (16:9+subs), 20:9, (20:9+subs)\n"
" use_driver_crop: Always use video driver crop\n"
" logo_width: Width of logo (percentage of frame width) for automatic logo detection\n"
" use_avards_analysis: Use AVARDS algorithm for frame analysis\n"
" overscan_compensate: Compensation of output device overscan applied when cropping frames (%1000 of frame height)\n"
" bar_tone_tolerance: Tolerance of bar color (avards only)"
" debug_level: Output debug messages. 0=none, 1=info, 2=debug, 3=trace.\n"
"\n"
);
}
/*
* Open/close
*/
static void autocrop_dispose(post_plugin_t *this_gen)
{
if (_x_post_dispose(this_gen)) {
autocrop_post_plugin_t *this = (autocrop_post_plugin_t *) this_gen;
pthread_mutex_destroy(&this->crop_lock);
free(this->img);
free(this);
}
}
static post_plugin_t *autocrop_open_plugin(post_class_t *class_gen,
int inputs,
xine_audio_port_t **audio_target,
xine_video_port_t **video_target)
{
if (video_target && video_target[ 0 ]) {
autocrop_post_plugin_t *this = calloc(1, sizeof(autocrop_post_plugin_t));
post_in_t *input;
post_out_t *output;
post_video_port_t *port;
xine_post_in_t *input_param;
static xine_post_api_t post_api =
{ autocrop_set_parameters, autocrop_get_parameters,
autocrop_get_param_descr, autocrop_get_help };
if (this) {
_x_post_init(&this->post_plugin, 0, 1);
port = _x_post_intercept_video_port(&this->post_plugin,
video_target[ 0 ],
&input, &output);
input->xine_in.name = "video in";
output->xine_out.name = "video out";
port->intercept_ovl = autocrop_intercept_ovl;
port->new_manager->add_event = autocrop_overlay_add_event;
port->new_port.get_frame = autocrop_get_frame;
port->new_port.close = autocrop_video_close;
port->new_frame->draw = autocrop_draw;
this->post_plugin.xine_post.video_input[ 0 ] = &port->new_port;
this->post_plugin.dispose = autocrop_dispose;
input_param = &this->parameter_input;
input_param->name = "parameters";
input_param->type = XINE_POST_DATA_PARAMETERS;
input_param->data = &post_api;
#if XINE_VERSION_CODE >= 10102
xine_list_push_back(this->post_plugin.input, input_param);
#else
xine_list_append_content(this->post_plugin.input, input_param);
#endif
this->autodetect = 1;
this->autodetect_rate = DEFAULT_AUTODETECT_RATE;
this->stabilize_time = DEFAULT_STABILIZE_TIME;
this->subs_detect = 1;
this->subs_detect_lifetime = DEFAULT_SUBS_DETECT_LIFETIME;
this->subs_detect_stabilize_time = DEFAULT_SUBS_DETECT_STABILIZE_TIME;
this->soft_start = 1;
this->soft_start_step = DEFAULT_SOFT_START_STEP;
this->stabilize = 1;
this->logo_width = DEFAULT_LOGO_WIDTH;
this->use_avards_analysis = 0;
this->overscan_compensate = DEFAULT_OVERSCAN_COMPENSATE;
this->bar_tone_tolerance = DEFAULT_BAR_TONE_TOLERANCE;
this->debug_level = 1;
uint64_t caps = port->original_port->get_capabilities(port->original_port);
this->has_driver_crop = caps & VO_CAP_CROP;
this->has_unscaled_overlay = caps & VO_CAP_UNSCALED_OVERLAY;
pthread_mutex_init(&this->crop_lock, NULL);
return &this->post_plugin;
}
}
return NULL;
}
/*
* Plugin class
*/
#if POST_PLUGIN_IFACE_VERSION < 10
static char *autocrop_get_identifier(post_class_t *class_gen)
{
return "autocrop";
}
static char *autocrop_get_description(post_class_t *class_gen)
{
return "Crop letterboxed 4:3 video to 16:9";
}
static void autocrop_class_dispose(post_class_t *class_gen)
{
free(class_gen);
}
#endif
static void *autocrop_init_plugin(xine_t *xine, void *data)
{
post_class_t *class = calloc(1, sizeof(post_class_t));
if(class) {
class->open_plugin = autocrop_open_plugin;
#if POST_PLUGIN_IFACE_VERSION < 10
class->get_identifier = autocrop_get_identifier;
class->get_description = autocrop_get_description;
class->dispose = autocrop_class_dispose;
#else
class->identifier = "autocrop";
class->description = N_("Crop letterboxed 4:3 video to 16:9");
class->dispose = default_post_class_dispose;
#endif
}
return class;
}
static post_info_t info = { XINE_POST_TYPE_VIDEO_FILTER };
const plugin_info_t xine_plugin_info[] __attribute__((visibility("default"))) =
{
/* type, API, "name", version, special_info, init_function */
{ PLUGIN_POST, POST_PLUGIN_IFACE_VERSION, "autocrop", XINE_VERSION_CODE, &info, &autocrop_init_plugin },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};
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