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hb.c
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hb.c
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/* hb.c
Copyright (c) 2003-2015 HandBrake Team
This file is part of the HandBrake source code
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License v2.
For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html
*/
#include "hb.h"
#include "opencl.h"
#include "hbffmpeg.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#ifdef USE_QSV
#include "qsv_common.h"
#endif
#if defined( SYS_MINGW )
#include <io.h>
#if defined( PTW32_STATIC_LIB )
#include <pthread.h>
#endif
#endif
struct hb_handle_s
{
int id;
/* The "Check for update" thread */
int build;
char version[32];
hb_thread_t * update_thread;
/* This thread's only purpose is to check other threads'
states */
volatile int die;
hb_thread_t * main_thread;
int pid;
/* DVD/file scan thread */
hb_title_set_t title_set;
hb_thread_t * scan_thread;
/* The thread which processes the jobs. Others threads are launched
from this one (see work.c) */
hb_list_t * jobs;
hb_job_t * current_job;
volatile int work_die;
hb_error_code work_error;
hb_thread_t * work_thread;
hb_lock_t * state_lock;
hb_state_t state;
int paused;
hb_lock_t * pause_lock;
/* For MacGui active queue
increments each time the scan thread completes*/
int scanCount;
volatile int scan_die;
/* Stash of persistent data between jobs, for stuff
like correcting frame count and framerate estimates
on multi-pass encodes where frames get dropped. */
hb_interjob_t * interjob;
// power management opaque pointer
void * system_sleep_opaque;
// When hardware decoding, scan must also use hardware so that
// libav hardware decode contest is used. So set hardware
// decoding as a global property on the hb instance.
hb_hwd_t hwd;
};
hb_work_object_t * hb_objects = NULL;
int hb_instance_counter = 0;
void hb_hwd_set_enable( hb_handle_t *h, uint8_t enable )
{
h->hwd.enable = enable;
}
int hb_hwd_enabled( hb_handle_t *h )
{
return h->hwd.enable;
}
hb_hwd_t * hb_hwd_get_context( hb_handle_t *h )
{
return &h->hwd;
}
static void thread_func( void * );
static int ff_lockmgr_cb(void **mutex, enum AVLockOp op)
{
switch ( op )
{
case AV_LOCK_CREATE:
{
*mutex = hb_lock_init();
} break;
case AV_LOCK_DESTROY:
{
hb_lock_close( (hb_lock_t**)mutex );
} break;
case AV_LOCK_OBTAIN:
{
hb_lock( (hb_lock_t*)*mutex );
} break;
case AV_LOCK_RELEASE:
{
hb_unlock( (hb_lock_t*)*mutex );
} break;
default:
break;
}
return 0;
}
void hb_avcodec_init()
{
av_lockmgr_register(ff_lockmgr_cb);
av_register_all();
#ifdef _WIN64
// avresample's assembly optimizations can cause crashes under Win x86_64
// (see http://bugzilla.libav.org/show_bug.cgi?id=496)
// disable AVX and FMA4 as a workaround
hb_deep_log(2, "hb_avcodec_init: Windows x86_64, disabling AVX and FMA4");
int cpu_flags = av_get_cpu_flags() & ~AV_CPU_FLAG_AVX & ~AV_CPU_FLAG_FMA4;
av_set_cpu_flags_mask(cpu_flags);
#endif
}
int hb_avcodec_open(AVCodecContext *avctx, AVCodec *codec,
AVDictionary **av_opts, int thread_count)
{
int ret;
if ((thread_count == HB_FFMPEG_THREADS_AUTO || thread_count > 0) &&
(codec->type == AVMEDIA_TYPE_VIDEO))
{
avctx->thread_count = (thread_count == HB_FFMPEG_THREADS_AUTO) ?
hb_get_cpu_count() / 2 + 1 : thread_count;
avctx->thread_type = FF_THREAD_FRAME|FF_THREAD_SLICE;
avctx->thread_safe_callbacks = 1;
}
else
{
avctx->thread_count = 1;
}
if (codec->capabilities & CODEC_CAP_EXPERIMENTAL)
{
// "experimental" encoders will not open without this
avctx->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
}
ret = avcodec_open2(avctx, codec, av_opts);
return ret;
}
int hb_avcodec_close(AVCodecContext *avctx)
{
int ret;
ret = avcodec_close(avctx);
return ret;
}
int hb_avpicture_fill(AVPicture *pic, hb_buffer_t *buf)
{
int ret, ii;
for (ii = 0; ii < 4; ii++)
pic->linesize[ii] = buf->plane[ii].stride;
ret = av_image_fill_pointers(pic->data, buf->f.fmt,
buf->plane[0].height_stride,
buf->data, pic->linesize);
if (ret != buf->size)
{
hb_error("Internal error hb_avpicture_fill expected %d, got %d",
buf->size, ret);
}
return ret;
}
static int handle_jpeg(enum AVPixelFormat *format)
{
switch (*format)
{
case AV_PIX_FMT_YUVJ420P: *format = AV_PIX_FMT_YUV420P; return 1;
case AV_PIX_FMT_YUVJ422P: *format = AV_PIX_FMT_YUV422P; return 1;
case AV_PIX_FMT_YUVJ444P: *format = AV_PIX_FMT_YUV444P; return 1;
case AV_PIX_FMT_YUVJ440P: *format = AV_PIX_FMT_YUV440P; return 1;
default: return 0;
}
}
struct SwsContext*
hb_sws_get_context(int srcW, int srcH, enum AVPixelFormat srcFormat,
int dstW, int dstH, enum AVPixelFormat dstFormat,
int flags)
{
struct SwsContext * ctx;
ctx = sws_alloc_context();
if ( ctx )
{
int srcRange, dstRange;
srcRange = handle_jpeg(&srcFormat);
dstRange = handle_jpeg(&dstFormat);
/* enable this when implemented in Libav
flags |= SWS_FULL_CHR_H_INT | SWS_FULL_CHR_H_INP;
*/
av_opt_set_int(ctx, "srcw", srcW, 0);
av_opt_set_int(ctx, "srch", srcH, 0);
av_opt_set_int(ctx, "src_range", srcRange, 0);
av_opt_set_int(ctx, "src_format", srcFormat, 0);
av_opt_set_int(ctx, "dstw", dstW, 0);
av_opt_set_int(ctx, "dsth", dstH, 0);
av_opt_set_int(ctx, "dst_range", dstRange, 0);
av_opt_set_int(ctx, "dst_format", dstFormat, 0);
av_opt_set_int(ctx, "sws_flags", flags, 0);
sws_setColorspaceDetails( ctx,
sws_getCoefficients( SWS_CS_DEFAULT ), // src colorspace
srcRange, // src range 0 = MPG, 1 = JPG
sws_getCoefficients( SWS_CS_DEFAULT ), // dst colorspace
dstRange, // dst range 0 = MPG, 1 = JPG
0, // brightness
1 << 16, // contrast
1 << 16 ); // saturation
if (sws_init_context(ctx, NULL, NULL) < 0) {
hb_error("Cannot initialize resampling context");
sws_freeContext(ctx);
ctx = NULL;
}
}
return ctx;
}
uint64_t hb_ff_mixdown_xlat(int hb_mixdown, int *downmix_mode)
{
uint64_t ff_layout = 0;
int mode = AV_MATRIX_ENCODING_NONE;
switch (hb_mixdown)
{
// Passthru
case HB_AMIXDOWN_NONE:
break;
case HB_AMIXDOWN_MONO:
case HB_AMIXDOWN_LEFT:
case HB_AMIXDOWN_RIGHT:
ff_layout = AV_CH_LAYOUT_MONO;
break;
case HB_AMIXDOWN_DOLBY:
ff_layout = AV_CH_LAYOUT_STEREO;
mode = AV_MATRIX_ENCODING_DOLBY;
break;
case HB_AMIXDOWN_DOLBYPLII:
ff_layout = AV_CH_LAYOUT_STEREO;
mode = AV_MATRIX_ENCODING_DPLII;
break;
case HB_AMIXDOWN_STEREO:
ff_layout = AV_CH_LAYOUT_STEREO;
break;
case HB_AMIXDOWN_5POINT1:
ff_layout = AV_CH_LAYOUT_5POINT1;
break;
case HB_AMIXDOWN_6POINT1:
ff_layout = AV_CH_LAYOUT_6POINT1;
break;
case HB_AMIXDOWN_7POINT1:
ff_layout = AV_CH_LAYOUT_7POINT1;
break;
case HB_AMIXDOWN_5_2_LFE:
ff_layout = (AV_CH_LAYOUT_5POINT1_BACK|
AV_CH_FRONT_LEFT_OF_CENTER|
AV_CH_FRONT_RIGHT_OF_CENTER);
break;
default:
ff_layout = AV_CH_LAYOUT_STEREO;
hb_log("hb_ff_mixdown_xlat: unsupported mixdown %d", hb_mixdown);
break;
}
if (downmix_mode != NULL)
*downmix_mode = mode;
return ff_layout;
}
/*
* Set sample format to the request format if supported by the codec.
* The planar/packed variant of the requested format is the next best thing.
*/
void hb_ff_set_sample_fmt(AVCodecContext *context, AVCodec *codec,
enum AVSampleFormat request_sample_fmt)
{
if (context != NULL && codec != NULL &&
codec->type == AVMEDIA_TYPE_AUDIO && codec->sample_fmts != NULL)
{
const enum AVSampleFormat *fmt;
enum AVSampleFormat next_best_fmt;
next_best_fmt = (av_sample_fmt_is_planar(request_sample_fmt) ?
av_get_packed_sample_fmt(request_sample_fmt) :
av_get_planar_sample_fmt(request_sample_fmt));
context->request_sample_fmt = AV_SAMPLE_FMT_NONE;
for (fmt = codec->sample_fmts; *fmt != AV_SAMPLE_FMT_NONE; fmt++)
{
if (*fmt == request_sample_fmt)
{
context->request_sample_fmt = request_sample_fmt;
break;
}
else if (*fmt == next_best_fmt)
{
context->request_sample_fmt = next_best_fmt;
}
}
/*
* When encoding and AVCodec.sample_fmts exists, avcodec_open2()
* will error out if AVCodecContext.sample_fmt isn't set.
*/
if (context->request_sample_fmt == AV_SAMPLE_FMT_NONE)
{
context->request_sample_fmt = codec->sample_fmts[0];
}
context->sample_fmt = context->request_sample_fmt;
}
}
/**
* Registers work objects, by adding the work object to a liked list.
* @param w Handle to hb_work_object_t to register.
*/
void hb_register( hb_work_object_t * w )
{
w->next = hb_objects;
hb_objects = w;
}
void (*hb_log_callback)(const char* message);
static void redirect_thread_func(void *);
#if defined( SYS_MINGW )
#define pipe(phandles) _pipe (phandles, 4096, _O_BINARY)
#endif
/**
* Registers the given function as a logger. All logs will be passed to it.
* @param log_cb The function to register as a logger.
*/
void hb_register_logger( void (*log_cb)(const char* message) )
{
hb_log_callback = log_cb;
hb_thread_init("ioredirect", redirect_thread_func, NULL, HB_NORMAL_PRIORITY);
}
void hb_log_level_set(hb_handle_t *h, int level)
{
global_verbosity_level = level;
}
void hb_update_poll(hb_handle_t *h)
{
uint64_t date;
hb_log( "hb_update_poll: checking for updates" );
date = hb_get_date();
h->update_thread = hb_update_init( &h->build, h->version );
for( ;; )
{
if (h->update_thread == 0)
{
// Closed by thread_func
break;
}
if (hb_thread_has_exited(h->update_thread))
{
/* Immediate success or failure */
hb_thread_close( &h->update_thread );
break;
}
if (hb_get_date() > date + 1000)
{
/* Still nothing after one second. Connection problem,
let the thread die */
hb_log( "hb_update_poll: connection problem, not waiting for "
"update_thread" );
break;
}
hb_snooze( 500 );
}
}
/**
* libhb initialization routine.
* @param verbose HB_DEBUG_NONE or HB_DEBUG_ALL.
* @param update_check signals libhb to check for updated version from HandBrake website.
* @return Handle to hb_handle_t for use on all subsequent calls to libhb.
*/
hb_handle_t * hb_init( int verbose, int update_check )
{
hb_handle_t * h = calloc( sizeof( hb_handle_t ), 1 );
/* See hb_deep_log() and hb_log() in common.c */
hb_log_level_set(h, verbose);
h->id = hb_instance_counter++;
/* Check for an update on the website if asked to */
h->build = -1;
/* Initialize opaque for PowerManagement purposes */
h->system_sleep_opaque = hb_system_sleep_opaque_init();
if( update_check )
{
hb_update_poll(h);
}
h->title_set.list_title = hb_list_init();
h->jobs = hb_list_init();
h->state_lock = hb_lock_init();
h->state.state = HB_STATE_IDLE;
h->pause_lock = hb_lock_init();
h->interjob = calloc( sizeof( hb_interjob_t ), 1 );
/* Start library thread */
hb_log( "hb_init: starting libhb thread" );
h->die = 0;
h->main_thread = hb_thread_init( "libhb", thread_func, h,
HB_NORMAL_PRIORITY );
return h;
}
// Make sure these strings at least exist in the executable even though
// they may not all be visible in the frontend.
static const char* hb_title = HB_PROJECT_TITLE;
static const char* hb_name = HB_PROJECT_NAME;
static const char* hb_website = HB_PROJECT_URL_WEBSITE;
static const char* hb_community = HB_PROJECT_URL_COMMUNITY;
static const char* hb_irc = HB_PROJECT_URL_IRC;
static const char* hb_version = HB_PROJECT_VERSION;
static const int hb_build = HB_PROJECT_BUILD;
static const char* hb_repo_url = HB_PROJECT_REPO_URL;
static const char* hb_repo_tag = HB_PROJECT_REPO_TAG;
static const int hb_repo_rev = HB_PROJECT_REPO_REV;
static const char* hb_repo_hash = HB_PROJECT_REPO_HASH;
static const char* hb_repo_branch = HB_PROJECT_REPO_BRANCH;
static const char* hb_repo_remote = HB_PROJECT_REPO_REMOTE;
static const char* hb_repo_type = HB_PROJECT_REPO_TYPE;
const char * hb_get_full_description()
{
static char * desc = NULL;
if (desc == NULL)
{
desc = hb_strdup_printf("%s\n"
"\tWebsite: %s\n"
"\tForum: %s\n"
"\tIRC: %s\n"
"\tBuild Type: %s\n"
"\tRepository: %s\n"
"\tRelease Tag: %s\n"
"\tRevision: %d\n"
"\tCommit Hash: %s\n"
"\tBranch: %s\n"
"\tRemote: %s",
hb_title, hb_website, hb_community, hb_irc,
hb_repo_type, hb_repo_url, hb_repo_tag, hb_repo_rev,
hb_repo_hash, hb_repo_branch, hb_repo_remote);
}
return desc;
}
/**
* Returns current version of libhb.
* @param h Handle to hb_handle_t.
* @return character array of version number.
*/
const char * hb_get_version( hb_handle_t * h )
{
// Silence compiler warnings for unused variables
((void)(hb_title));
((void)(hb_name));
((void)(hb_website));
((void)(hb_community));
((void)(hb_irc));
((void)(hb_version));
((void)(hb_repo_url));
((void)(hb_repo_tag));
((void)(hb_repo_rev));
((void)(hb_repo_hash));
((void)(hb_repo_branch));
((void)(hb_repo_remote));
((void)(hb_repo_type));
return hb_version;
}
/**
* Returns current build of libhb.
* @param h Handle to hb_handle_t.
* @return character array of build number.
*/
int hb_get_build( hb_handle_t * h )
{
return hb_build;
}
/**
* Checks for needed update.
* @param h Handle to hb_handle_t.
* @param version Pointer to handle where version will be copied.
* @return update indicator.
*/
int hb_check_update( hb_handle_t * h, char ** version )
{
*version = ( h->build < 0 ) ? NULL : h->version;
return h->build;
}
/**
* Deletes current previews associated with titles
* @param h Handle to hb_handle_t
*/
void hb_remove_previews( hb_handle_t * h )
{
char filename[1024];
char dirname[1024];
hb_title_t * title;
int i, count, len;
DIR * dir;
struct dirent * entry;
memset( dirname, 0, 1024 );
hb_get_temporary_directory( dirname );
dir = opendir( dirname );
if (dir == NULL) return;
count = hb_list_count( h->title_set.list_title );
while( ( entry = readdir( dir ) ) )
{
if( entry->d_name[0] == '.' )
{
continue;
}
for( i = 0; i < count; i++ )
{
title = hb_list_item( h->title_set.list_title, i );
len = snprintf( filename, 1024, "%d_%d", h->id, title->index );
if (strncmp(entry->d_name, filename, len) == 0)
{
snprintf( filename, 1024, "%s/%s", dirname, entry->d_name );
unlink( filename );
break;
}
}
}
closedir( dir );
}
/**
* Initializes a scan of the by calling hb_scan_init
* @param h Handle to hb_handle_t
* @param path location of VIDEO_TS folder.
* @param title_index Desired title to scan. 0 for all titles.
* @param preview_count Number of preview images to generate.
* @param store_previews Whether or not to write previews to disk.
*/
void hb_scan( hb_handle_t * h, const char * path, int title_index,
int preview_count, int store_previews, uint64_t min_duration )
{
hb_title_t * title;
// Check if scanning is necessary.
if (!strcmp(h->title_set.path, path))
{
// Current title_set path matches requested path.
// Check if the requested title has already been scanned.
int ii;
for (ii = 0; ii < hb_list_count(h->title_set.list_title); ii++)
{
title = hb_list_item(h->title_set.list_title, ii);
if (title->index == title_index)
{
// In some cases, we don't care what the preview count is.
// E.g. when rescanning at the start of a job. In these
// cases, the caller can set preview_count to -1 to tell
// us to use the same count as the previous scan, if known.
if (preview_count < 0)
{
preview_count = title->preview_count;
}
if (preview_count == title->preview_count)
{
// Title has already been scanned.
hb_lock( h->state_lock );
h->state.state = HB_STATE_SCANDONE;
hb_unlock( h->state_lock );
return;
}
}
}
}
if (preview_count < 0)
{
preview_count = 10;
}
h->scan_die = 0;
/* Clean up from previous scan */
hb_remove_previews( h );
while( ( title = hb_list_item( h->title_set.list_title, 0 ) ) )
{
hb_list_rem( h->title_set.list_title, title );
hb_title_close( &title );
}
/* Print CPU info here so that it's in all scan and encode logs */
const char *cpu_name = hb_get_cpu_name();
const char *cpu_type = hb_get_cpu_platform_name();
hb_log("CPU: %s", cpu_name != NULL ? cpu_name : "");
if (cpu_type != NULL)
{
hb_log(" - %s", cpu_type);
}
hb_log(" - logical processor count: %d", hb_get_cpu_count());
/* Print OpenCL info here so that it's in all scan and encode logs */
hb_opencl_info_print();
#ifdef USE_QSV
/* Print QSV info here so that it's in all scan and encode logs */
hb_qsv_info_print();
#endif
hb_log( "hb_scan: path=%s, title_index=%d", path, title_index );
h->scan_thread = hb_scan_init( h, &h->scan_die, path, title_index,
&h->title_set, preview_count,
store_previews, min_duration );
}
/**
* Returns the list of titles found.
* @param h Handle to hb_handle_t
* @return Handle to hb_list_t of the title list.
*/
hb_list_t * hb_get_titles( hb_handle_t * h )
{
return h->title_set.list_title;
}
hb_title_set_t * hb_get_title_set( hb_handle_t * h )
{
return &h->title_set;
}
int hb_save_preview( hb_handle_t * h, int title, int preview, hb_buffer_t *buf )
{
FILE * file;
char filename[1024];
hb_get_tempory_filename( h, filename, "%d_%d_%d",
hb_get_instance_id(h), title, preview );
file = hb_fopen(filename, "wb");
if( !file )
{
hb_error( "hb_save_preview: fopen failed (%s)", filename );
return -1;
}
int pp, hh;
for( pp = 0; pp < 3; pp++ )
{
uint8_t *data = buf->plane[pp].data;
int stride = buf->plane[pp].stride;
int w = buf->plane[pp].width;
int h = buf->plane[pp].height;
for( hh = 0; hh < h; hh++ )
{
fwrite( data, w, 1, file );
data += stride;
}
}
fclose( file );
return 0;
}
hb_buffer_t * hb_read_preview(hb_handle_t * h, hb_title_t *title, int preview)
{
FILE * file;
char filename[1024];
hb_get_tempory_filename(h, filename, "%d_%d_%d",
hb_get_instance_id(h), title->index, preview);
file = hb_fopen(filename, "rb");
if (!file)
{
hb_error( "hb_read_preview: fopen failed (%s)", filename );
return NULL;
}
hb_buffer_t * buf;
buf = hb_frame_buffer_init(AV_PIX_FMT_YUV420P,
title->geometry.width, title->geometry.height);
int pp, hh;
for (pp = 0; pp < 3; pp++)
{
uint8_t *data = buf->plane[pp].data;
int stride = buf->plane[pp].stride;
int w = buf->plane[pp].width;
int h = buf->plane[pp].height;
for (hh = 0; hh < h; hh++)
{
fread(data, w, 1, file);
data += stride;
}
}
fclose(file);
return buf;
}
hb_image_t* hb_get_preview2(hb_handle_t * h, int title_idx, int picture,
hb_geometry_settings_t *geo, int deinterlace)
{
char filename[1024];
hb_buffer_t * in_buf, * deint_buf = NULL, * preview_buf;
uint32_t swsflags;
AVPicture pic_in, pic_preview, pic_deint, pic_crop;
struct SwsContext * context;
int width = geo->geometry.width *
geo->geometry.par.num / geo->geometry.par.den;
int height = geo->geometry.height;
swsflags = SWS_LANCZOS | SWS_ACCURATE_RND;
preview_buf = hb_frame_buffer_init(AV_PIX_FMT_RGB32, width, height);
// fill in AVPicture
hb_avpicture_fill( &pic_preview, preview_buf );
memset( filename, 0, 1024 );
hb_title_t * title;
title = hb_find_title_by_index(h, title_idx);
if (title == NULL)
{
hb_error( "hb_get_preview2: invalid title (%d)", title_idx );
goto fail;
}
in_buf = hb_read_preview( h, title, picture );
if ( in_buf == NULL )
{
goto fail;
}
hb_avpicture_fill( &pic_in, in_buf );
if (deinterlace)
{
// Deinterlace and crop
deint_buf = hb_frame_buffer_init( AV_PIX_FMT_YUV420P,
title->geometry.width, title->geometry.height );
hb_deinterlace(deint_buf, in_buf);
hb_avpicture_fill( &pic_deint, deint_buf );
av_picture_crop(&pic_crop, &pic_deint, AV_PIX_FMT_YUV420P,
geo->crop[0], geo->crop[2] );
}
else
{
// Crop
av_picture_crop(&pic_crop, &pic_in, AV_PIX_FMT_YUV420P,
geo->crop[0], geo->crop[2] );
}
// Get scaling context
context = hb_sws_get_context(
title->geometry.width - (geo->crop[2] + geo->crop[3]),
title->geometry.height - (geo->crop[0] + geo->crop[1]),
AV_PIX_FMT_YUV420P, width, height, AV_PIX_FMT_RGB32, swsflags);
// Scale
sws_scale(context,
(const uint8_t* const *)pic_crop.data, pic_crop.linesize,
0, title->geometry.height - (geo->crop[0] + geo->crop[1]),
pic_preview.data, pic_preview.linesize);
// Free context
sws_freeContext( context );
hb_image_t *image = hb_buffer_to_image(preview_buf);
// Clean up
hb_buffer_close( &in_buf );
hb_buffer_close( &deint_buf );
hb_buffer_close( &preview_buf );
return image;
fail:
image = hb_image_init(AV_PIX_FMT_RGB32, width, height);
return image;
}
/**
* Analyzes a frame to detect interlacing artifacts
* and returns true if interlacing (combing) is found.
*
* Code taken from Thomas Oestreich's 32detect filter
* in the Transcode project, with minor formatting changes.
*
* @param buf An hb_buffer structure holding valid frame data
* @param width The frame's width in pixels
* @param height The frame's height in pixels
* @param color_equal Sensitivity for detecting similar colors
* @param color_diff Sensitivity for detecting different colors
* @param threshold Sensitivity for flagging planes as combed
* @param prog_equal Sensitivity for detecting similar colors on progressive frames
* @param prog_diff Sensitivity for detecting different colors on progressive frames
* @param prog_threshold Sensitivity for flagging progressive frames as combed
*/
int hb_detect_comb( hb_buffer_t * buf, int color_equal, int color_diff, int threshold, int prog_equal, int prog_diff, int prog_threshold )
{
int j, k, n, off, cc_1, cc_2, cc[3];
// int flag[3] ; // debugging flag
uint16_t s1, s2, s3, s4;
cc_1 = 0; cc_2 = 0;
if ( buf->s.flags & 16 )
{
/* Frame is progressive, be more discerning. */
color_diff = prog_diff;
color_equal = prog_equal;
threshold = prog_threshold;
}
/* One pas for Y, one pass for Cb, one pass for Cr */
for( k = 0; k < 3; k++ )
{
uint8_t * data = buf->plane[k].data;
int width = buf->plane[k].width;
int stride = buf->plane[k].stride;
int height = buf->plane[k].height;
for( j = 0; j < width; ++j )
{
off = 0;
for( n = 0; n < ( height - 4 ); n = n + 2 )
{
/* Look at groups of 4 sequential horizontal lines */
s1 = ( ( data )[ off + j ] & 0xff );
s2 = ( ( data )[ off + j + stride ] & 0xff );
s3 = ( ( data )[ off + j + 2 * stride ] & 0xff );
s4 = ( ( data )[ off + j + 3 * stride ] & 0xff );
/* Note if the 1st and 2nd lines are more different in
color than the 1st and 3rd lines are similar in color.*/
if ( ( abs( s1 - s3 ) < color_equal ) &&
( abs( s1 - s2 ) > color_diff ) )
++cc_1;
/* Note if the 2nd and 3rd lines are more different in
color than the 2nd and 4th lines are similar in color.*/
if ( ( abs( s2 - s4 ) < color_equal ) &&
( abs( s2 - s3 ) > color_diff) )
++cc_2;
/* Now move down 2 horizontal lines before starting over.*/
off += 2 * stride;
}
}
// compare results
/* The final cc score for a plane is the percentage of combed pixels it contains.
Because sensitivity goes down to hundreths of a percent, multiply by 1000
so it will be easy to compare against the threhold value which is an integer. */
cc[k] = (int)( ( cc_1 + cc_2 ) * 1000.0 / ( width * height ) );
}
/* HandBrake is all yuv420, so weight the average percentage of all 3 planes accordingly.*/
int average_cc = ( 2 * cc[0] + ( cc[1] / 2 ) + ( cc[2] / 2 ) ) / 3;
/* Now see if that average percentage of combed pixels surpasses the threshold percentage given by the user.*/
if( average_cc > threshold )
{
#if 0
hb_log("Average %i combed (Threshold %i) %i/%i/%i | PTS: %"PRId64" (%fs) %s", average_cc, threshold, cc[0], cc[1], cc[2], buf->start, (float)buf->start / 90000, (buf->flags & 16) ? "Film" : "Video" );
#endif
return 1;
}
#if 0
hb_log("SKIPPED Average %i combed (Threshold %i) %i/%i/%i | PTS: %"PRId64" (%fs) %s", average_cc, threshold, cc[0], cc[1], cc[2], buf->start, (float)buf->start / 90000, (buf->flags & 16) ? "Film" : "Video" );
#endif
/* Reaching this point means no combing detected. */
return 0;
}
/**
* Calculates destination width and height for anamorphic content
*
* Returns calculated geometry
* @param source_geometry - Pointer to source geometry info
* @param geometry - Pointer to requested destination parameters
*/
void hb_set_anamorphic_size2(hb_geometry_t *src_geo,
hb_geometry_settings_t *geo,
hb_geometry_t *result)
{
hb_rational_t in_par, out_par;
int keep_display_aspect = !!(geo->keep & HB_KEEP_DISPLAY_ASPECT);
int keep_height = !!(geo->keep & HB_KEEP_HEIGHT);
/* Set up some variables to make the math easier to follow. */
int cropped_width = src_geo->width - geo->crop[2] - geo->crop[3];
int cropped_height = src_geo->height - geo->crop[0] - geo->crop[1];
double storage_aspect = (double)cropped_width / cropped_height;
int mod = geo->modulus ? EVEN(geo->modulus) : 2;
// Sanitize PAR
if (geo->geometry.par.num == 0 || geo->geometry.par.den == 0)
{
geo->geometry.par.num = geo->geometry.par.den = 1;
}
if (src_geo->par.num == 0 || src_geo->par.den == 0)
{
src_geo->par.num = src_geo->par.den = 1;
}
// Use 64 bits to avoid overflow till the final hb_reduce() call
hb_reduce(&in_par.num, &in_par.den,
geo->geometry.par.num, geo->geometry.par.den);
int64_t dst_par_num = in_par.num;
int64_t dst_par_den = in_par.den;
hb_rational_t src_par = src_geo->par;
/* If a source was really NTSC or PAL and the user specified ITU PAR
values, replace the standard PAR values with the ITU broadcast ones. */
if (src_geo->width == 720 && geo->itu_par)
{
// convert aspect to a scaled integer so we can test for 16:9 & 4:3
// aspect ratios ignoring insignificant differences in the LSBs of
// the floating point representation.
int iaspect = src_geo->width * src_par.num * 9. /
(src_geo->height * src_par.den);
/* Handle ITU PARs */
if (src_geo->height == 480)
{
/* It's NTSC */
if (iaspect == 16)
{
/* It's widescreen */
dst_par_num = 40;
dst_par_den = 33;
}
else if (iaspect == 12)