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encx264.c
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/* encx264.c
Copyright (c) 2003-2018 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 <stdarg.h>
#include "hb.h"
#include "hb_dict.h"
#include "encx264.h"
int encx264Init( hb_work_object_t *, hb_job_t * );
int encx264Work( hb_work_object_t *, hb_buffer_t **, hb_buffer_t ** );
void encx264Close( hb_work_object_t * );
hb_work_object_t hb_encx264 =
{
WORK_ENCX264,
"H.264/AVC encoder (libx264)",
encx264Init,
encx264Work,
encx264Close
};
#define DTS_BUFFER_SIZE 32
/*
* The frame info struct remembers information about each frame across calls
* to x264_encoder_encode. Since frames are uniquely identified by their
* timestamp, we use some bits of the timestamp as an index. The LSB is
* chosen so that two successive frames will have different values in the
* bits over any plausible range of frame rates. (Starting with bit 8 allows
* any frame rate slower than 352fps.) The MSB determines the size of the array.
* It is chosen so that two frames can't use the same slot during the
* encoder's max frame delay (set by the standard as 16 frames) and so
* that, up to some minimum frame rate, frames are guaranteed to map to
* different slots. (An MSB of 17 which is 2^(17-8+1) = 1024 slots guarantees
* no collisions down to a rate of .7 fps).
*/
#define FRAME_INFO_MAX2 (8) // 2^8 = 256; 90000/256 = 352 frames/sec
#define FRAME_INFO_MIN2 (17) // 2^17 = 128K; 90000/131072 = 1.4 frames/sec
#define FRAME_INFO_SIZE (1 << (FRAME_INFO_MIN2 - FRAME_INFO_MAX2 + 1))
#define FRAME_INFO_MASK (FRAME_INFO_SIZE - 1)
struct hb_work_private_s
{
hb_job_t * job;
x264_t * x264;
x264_picture_t pic_in;
int64_t last_stop; // Debugging - stop time of previous input frame
hb_chapter_queue_t * chapter_queue;
struct {
int64_t duration;
} frame_info[FRAME_INFO_SIZE];
char filename[1024];
// Multiple bit-depth
const x264_api_t * api;
};
#define HB_X264_API_COUNT 2
static x264_api_t x264_apis[HB_X264_API_COUNT];
const char *libx264_10bit_names[] = {
"libx26410b", "libx264_main10", NULL
};
const char *libx264_8bit_names[] = {
"libx264", "libx2648b", "libx264_main", NULL
};
static void * x264_lib_open(const char *names[])
{
if (names == NULL)
return NULL;
void *h;
int ii = 0;
while (names[ii] != NULL)
{
char *name = hb_strdup_printf("%s%s", names[ii], HB_SO_EXT);
h = hb_dlopen(name);
free(name);
if (h != NULL)
{
return h;
}
ii++;
}
return NULL;
}
#if defined(SYS_LINUX)
static void * x264_lib_open_ubuntu_10bit_search(const char *prefix)
{
void * h;
const char * name = "libx264.so";
HB_DIR * dir;
struct dirent * entry;
dir = hb_opendir(prefix);
if (dir == NULL)
{
return NULL;
}
while ((entry = hb_readdir(dir)) != NULL)
{
if (!strncmp(entry->d_name, name, strlen(name)))
{
char *path = hb_strdup_printf("%s/%s", prefix, entry->d_name);
h = hb_dlopen(path);
free(path);
if (h != NULL)
{
hb_closedir(dir);
return h;
}
}
}
hb_closedir(dir);
return NULL;
}
static void * x264_lib_open_ubuntu_10bit(void)
{
void *h = NULL;
#if ARCH_X86_64
h = x264_lib_open_ubuntu_10bit_search("/usr/lib/x86_64-linux-gnu/x264-10bit");
#elif ARCH_X86_32
h = x264_lib_open_ubuntu_10bit_search("/usr/lib/i386-linux-gnu/x264-10bit");
#endif
if (h == NULL)
{
h = x264_lib_open_ubuntu_10bit_search("/usr/lib/x264-10bit");
}
return h;
}
#endif
void hb_x264_global_init(void)
{
#if X264_BUILD < 153
x264_apis[0].bit_depth = x264_bit_depth;
#else
x264_apis[0].bit_depth = X264_BIT_DEPTH;
#endif
x264_apis[0].param_default = x264_param_default;
x264_apis[0].param_default_preset = x264_param_default_preset;
x264_apis[0].param_apply_profile = x264_param_apply_profile;
x264_apis[0].param_apply_fastfirstpass = x264_param_apply_fastfirstpass;
x264_apis[0].param_parse = x264_param_parse;
x264_apis[0].encoder_open = x264_encoder_open;
x264_apis[0].encoder_headers = x264_encoder_headers;
x264_apis[0].encoder_encode = x264_encoder_encode;
x264_apis[0].encoder_delayed_frames = x264_encoder_delayed_frames;
x264_apis[0].encoder_close = x264_encoder_close;
x264_apis[0].picture_init = x264_picture_init;
if (x264_apis[0].bit_depth == 0)
{
// libx264 supports 8 and 10 bit
x264_apis[0].bit_depth = 8;
x264_apis[1].bit_depth = 10;
x264_apis[1].param_default = x264_param_default;
x264_apis[1].param_default_preset = x264_param_default_preset;
x264_apis[1].param_apply_profile = x264_param_apply_profile;
x264_apis[1].param_apply_fastfirstpass = x264_param_apply_fastfirstpass;
x264_apis[1].param_parse = x264_param_parse;
x264_apis[1].encoder_open = x264_encoder_open;
x264_apis[1].encoder_headers = x264_encoder_headers;
x264_apis[1].encoder_encode = x264_encoder_encode;
x264_apis[1].encoder_delayed_frames = x264_encoder_delayed_frames;
x264_apis[1].encoder_close = x264_encoder_close;
x264_apis[1].picture_init = x264_picture_init;
return;
}
// Invalidate other apis
x264_apis[1].bit_depth = -1;
// Attempt to dlopen a library for handling the bit-depth that we do
// not already have.
void *h;
if (x264_apis[0].bit_depth == 8)
{
h = x264_lib_open(libx264_10bit_names);
#if defined(SYS_LINUX)
if (h == NULL)
{
h = x264_lib_open_ubuntu_10bit();
}
#endif
}
else
{
h = x264_lib_open(libx264_8bit_names);
}
if (h == NULL)
{
return;
}
int ii;
int dll_bitdepth = 0;
#if X264_BUILD < 153
int *pbit_depth = (int*)hb_dlsym(h, "x264_bit_depth");
if (pbit_depth != NULL)
{
dll_bitdepth = *pbit_depth;
}
#endif
x264_apis[1].param_default = hb_dlsym(h, "x264_param_default");
#if X264_BUILD >= 153
if (x264_apis[1].param_default != NULL)
{
x264_param_t defaults;
x264_apis[1].param_default(&defaults);
dll_bitdepth = defaults.i_bitdepth;
}
#endif
x264_apis[1].param_default_preset = hb_dlsym(h, "x264_param_default_preset");
x264_apis[1].param_apply_profile = hb_dlsym(h, "x264_param_apply_profile");
x264_apis[1].param_apply_fastfirstpass =
hb_dlsym(h, "x264_param_apply_fastfirstpass");
x264_apis[1].param_parse = hb_dlsym(h, "x264_param_parse");
// x264 appends the build number to the end of x264_encoder_open
for (ii = 140; ii < 200; ii++)
{
char *name = hb_strdup_printf("x264_encoder_open_%d", ii);
x264_apis[1].encoder_open = hb_dlsym(h, name);
free(name);
if (x264_apis[1].encoder_open != NULL)
{
break;
}
}
x264_apis[1].encoder_headers = hb_dlsym(h, "x264_encoder_headers");
x264_apis[1].encoder_encode = hb_dlsym(h, "x264_encoder_encode");
x264_apis[1].encoder_delayed_frames =
hb_dlsym(h, "x264_encoder_delayed_frames");
x264_apis[1].encoder_close = hb_dlsym(h, "x264_encoder_close");
x264_apis[1].picture_init = hb_dlsym(h, "x264_picture_init");
if (dll_bitdepth > 0 && dll_bitdepth != x264_apis[0].bit_depth &&
x264_apis[1].param_default != NULL &&
x264_apis[1].param_default_preset != NULL &&
x264_apis[1].param_apply_profile != NULL &&
x264_apis[1].param_apply_fastfirstpass != NULL &&
x264_apis[1].param_parse != NULL &&
x264_apis[1].encoder_open != NULL &&
x264_apis[1].encoder_headers != NULL &&
x264_apis[1].encoder_encode != NULL &&
x264_apis[1].encoder_delayed_frames != NULL &&
x264_apis[1].encoder_close != NULL &&
x264_apis[1].picture_init != NULL)
{
x264_apis[1].bit_depth = dll_bitdepth;
}
}
const x264_api_t * hb_x264_api_get(int bit_depth)
{
int ii;
for (ii = 0; ii < HB_X264_API_COUNT; ii++)
{
if (-1 != x264_apis[ii].bit_depth &&
bit_depth == x264_apis[ii].bit_depth)
{
return &x264_apis[ii];
}
}
return NULL;
}
#if 0
/*
* Check whether a valid h264_level is compatible with the given framerate,
* resolution and interlaced compression/flags combination.
*
* width, height, fps_num and fps_den should be greater than zero.
*
* interlacing parameters can be set to zero when the information is
* unavailable, as apply_h264_level() will disable interlacing if necessary.
*
* Returns 0 if the level is valid and compatible, 1 otherwise.
*/
static int check_h264_level(const char *h264_level, int width, int height,
int fps_num, int fps_den, int interlaced,
int fake_interlaced);
#endif
/*
* Applies the restrictions of the requested H.264 level to an x264_param_t.
*
* Returns -1 if an invalid level (or no level) is specified. GUIs should be
* capable of always providing a valid level.
*
* Does not modify resolution/framerate but warns when they exceed level limits.
*
* Based on a x264_param_apply_level() draft and other x264 code.
*/
static int apply_h264_level(const x264_api_t *api, x264_param_t *param,
const char *h264_level, const char *x264_profile,
int verbose);
/*
* Applies the restrictions of the requested H.264 profile to an x264_param_t.
*
* x264_param_apply_profile wrapper designed to always succeed when a valid
* H.264 profile is specified (unlike x264's function).
*/
static int apply_h264_profile(const x264_api_t *api, x264_param_t *param,
const char *h264_profile, int verbose);
/***********************************************************************
* hb_work_encx264_init
***********************************************************************
*
**********************************************************************/
int encx264Init( hb_work_object_t * w, hb_job_t * job )
{
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
x264_param_t param;
x264_nal_t * nal;
int nal_count, bit_depth;
w->private_data = pv;
bit_depth = hb_video_encoder_get_depth(job->vcodec);
pv->api = hb_x264_api_get(bit_depth);
if (pv->api == NULL)
{
hb_error("encx264: hb_x264_api_get failed, bit-depth %d", bit_depth);
return 1;
}
pv->job = job;
pv->last_stop = AV_NOPTS_VALUE;
pv->chapter_queue = hb_chapter_queue_init();
if (pv->api->param_default_preset(¶m,
job->encoder_preset, job->encoder_tune) < 0)
{
free( pv );
w->private_data = NULL;
return 1;
}
#if X264_BUILD >= 153
param.i_bitdepth = bit_depth;
#endif
/* If the PSNR or SSIM tunes are in use, enable the relevant metric */
if (job->encoder_tune != NULL && *job->encoder_tune)
{
char *tmp = strdup(job->encoder_tune);
char *tok = strtok(tmp, ",./-+");
do
{
if (!strncasecmp(tok, "psnr", 4))
{
param.analyse.b_psnr = 1;
break;
}
if (!strncasecmp(tok, "ssim", 4))
{
param.analyse.b_ssim = 1;
break;
}
}
while ((tok = strtok(NULL, ",./-+")) != NULL);
free(tmp);
}
/* Some HandBrake-specific defaults; users can override them
* using the encoder_options string. */
param.i_fps_num = job->vrate.num;
param.i_fps_den = job->vrate.den;
if ( job->cfr == 1 )
{
param.i_timebase_num = 0;
param.i_timebase_den = 0;
param.b_vfr_input = 0;
}
else
{
param.i_timebase_num = 1;
param.i_timebase_den = 90000;
}
/* Set min:max keyframe intervals to 1:10 of fps;
* adjust +0.5 for when fps has remainder to bump
* { 23.976, 29.976, 59.94 } to { 24, 30, 60 }. */
param.i_keyint_min = (double)job->orig_vrate.num / job->orig_vrate.den +
0.5;
param.i_keyint_max = 10 * param.i_keyint_min;
param.i_log_level = X264_LOG_INFO;
/* set up the VUI color model & gamma to match what the COLR atom
* set in muxmp4.c says. See libhb/muxmp4.c for notes. */
if( job->color_matrix_code == 5 )
{
// Custom
param.vui.i_colorprim = job->color_prim;
param.vui.i_transfer = job->color_transfer;
param.vui.i_colmatrix = job->color_matrix;
}
else if( job->color_matrix_code == 4 )
{
// ITU BT.2020 UHD content
param.vui.i_colorprim = HB_COLR_PRI_BT2020;
param.vui.i_transfer = HB_COLR_TRA_BT709;
param.vui.i_colmatrix = HB_COLR_MAT_BT2020_NCL;
}
else if( job->color_matrix_code == 3 )
{
// ITU BT.709 HD content
param.vui.i_colorprim = HB_COLR_PRI_BT709;
param.vui.i_transfer = HB_COLR_TRA_BT709;
param.vui.i_colmatrix = HB_COLR_MAT_BT709;
}
else if( job->color_matrix_code == 2 )
{
// ITU BT.601 DVD or SD TV content (PAL)
param.vui.i_colorprim = HB_COLR_PRI_EBUTECH;
param.vui.i_transfer = HB_COLR_TRA_BT709;
param.vui.i_colmatrix = HB_COLR_MAT_SMPTE170M;
}
else if( job->color_matrix_code == 1 )
{
// ITU BT.601 DVD or SD TV content (NTSC)
param.vui.i_colorprim = HB_COLR_PRI_SMPTEC;
param.vui.i_transfer = HB_COLR_TRA_BT709;
param.vui.i_colmatrix = HB_COLR_MAT_SMPTE170M;
}
else
{
// detected during scan
param.vui.i_colorprim = job->title->color_prim;
param.vui.i_transfer = job->title->color_transfer;
param.vui.i_colmatrix = job->title->color_matrix;
}
/* place job->encoder_options in an hb_dict_t for convenience */
hb_dict_t * x264_opts = NULL;
if (job->encoder_options != NULL && *job->encoder_options)
{
x264_opts = hb_encopts_to_dict(job->encoder_options, job->vcodec);
}
/* iterate through x264_opts and have libx264 parse the options for us */
int ret;
hb_dict_iter_t iter;
for (iter = hb_dict_iter_init(x264_opts);
iter != HB_DICT_ITER_DONE;
iter = hb_dict_iter_next(x264_opts, iter))
{
const char *key = hb_dict_iter_key(iter);
hb_value_t *value = hb_dict_iter_value(iter);
char *str = hb_value_get_string_xform(value);
/* Here's where the strings are passed to libx264 for parsing. */
ret = pv->api->param_parse(¶m, key, str);
/* Let x264 sanity check the options for us */
if (ret == X264_PARAM_BAD_NAME)
hb_log( "x264 options: Unknown suboption %s", key );
if (ret == X264_PARAM_BAD_VALUE)
hb_log( "x264 options: Bad argument %s=%s", key,
str ? str : "(null)" );
free(str);
}
hb_dict_free(&x264_opts);
/* Reload colorimetry settings in case custom values were set
* in the encoder_options string */
job->color_matrix_code = 4;
job->color_prim = param.vui.i_colorprim;
job->color_transfer = param.vui.i_transfer;
job->color_matrix = param.vui.i_colmatrix;
/* For 25 fps sources, HandBrake's explicit keyints will match the x264 defaults:
* min-keyint 25 (same as auto), keyint 250. */
if( param.i_keyint_min != 25 || param.i_keyint_max != 250 )
{
int min_auto;
if ( param.i_fps_num / param.i_fps_den < param.i_keyint_max / 10 )
min_auto = param.i_fps_num / param.i_fps_den;
else
min_auto = param.i_keyint_max / 10;
char min[40], max[40];
param.i_keyint_min == X264_KEYINT_MIN_AUTO ?
snprintf( min, 40, "auto (%d)", min_auto ) :
snprintf( min, 40, "%d", param.i_keyint_min );
param.i_keyint_max == X264_KEYINT_MAX_INFINITE ?
snprintf( max, 40, "infinite" ) :
snprintf( max, 40, "%d", param.i_keyint_max );
hb_log( "encx264: min-keyint: %s, keyint: %s", min, max );
}
/* Settings which can't be overridden in the encoder_options string
* (muxer-specific settings, resolution, ratecontrol, etc.). */
/* Disable annexb. Inserts size into nal header instead of start code. */
param.b_annexb = 0;
param.i_width = job->width;
param.i_height = job->height;
param.vui.i_sar_width = job->par.num;
param.vui.i_sar_height = job->par.den;
if (job->vquality > HB_INVALID_VIDEO_QUALITY)
{
/* Constant RF */
param.rc.i_rc_method = X264_RC_CRF;
param.rc.f_rf_constant = job->vquality;
hb_log( "encx264: encoding at constant RF %f", param.rc.f_rf_constant );
}
else
{
/* Average bitrate */
param.rc.i_rc_method = X264_RC_ABR;
param.rc.i_bitrate = job->vbitrate;
hb_log( "encx264: encoding at average bitrate %d", param.rc.i_bitrate );
if( job->pass_id == HB_PASS_ENCODE_1ST ||
job->pass_id == HB_PASS_ENCODE_2ND )
{
memset( pv->filename, 0, 1024 );
hb_get_tempory_filename( job->h, pv->filename, "x264.log" );
}
switch( job->pass_id )
{
case HB_PASS_ENCODE_1ST:
param.rc.b_stat_read = 0;
param.rc.b_stat_write = 1;
param.rc.psz_stat_out = pv->filename;
break;
case HB_PASS_ENCODE_2ND:
param.rc.b_stat_read = 1;
param.rc.b_stat_write = 0;
param.rc.psz_stat_in = pv->filename;
break;
}
}
/* Apply profile and level settings last, if present. */
if (job->encoder_profile != NULL && *job->encoder_profile)
{
if (apply_h264_profile(pv->api, ¶m, job->encoder_profile, 1))
{
free(pv);
w->private_data = NULL;
return 1;
}
}
if (job->encoder_level != NULL && *job->encoder_level)
{
if (apply_h264_level(pv->api, ¶m, job->encoder_level,
job->encoder_profile, 1) < 0)
{
free(pv);
w->private_data = NULL;
return 1;
}
}
/* Turbo first pass */
if( job->pass_id == HB_PASS_ENCODE_1ST && job->fastfirstpass == 1 )
{
pv->api->param_apply_fastfirstpass( ¶m );
}
/* B-pyramid is enabled by default. */
job->areBframes = 2;
if( !param.i_bframe )
{
job->areBframes = 0;
}
else if( !param.i_bframe_pyramid )
{
job->areBframes = 1;
}
/* Log the unparsed x264 options string. */
char *x264_opts_unparsed = hb_x264_param_unparse(pv->api->bit_depth,
job->encoder_preset,
job->encoder_tune,
job->encoder_options,
job->encoder_profile,
job->encoder_level,
job->width,
job->height);
if( x264_opts_unparsed != NULL )
{
hb_log( "encx264: unparsed options: %s", x264_opts_unparsed );
}
free( x264_opts_unparsed );
hb_deep_log( 2, "encx264: opening libx264 (pass %d)", job->pass_id );
pv->x264 = pv->api->encoder_open( ¶m );
if ( pv->x264 == NULL )
{
hb_error("encx264: x264_encoder_open failed.");
free( pv );
w->private_data = NULL;
return 1;
}
pv->api->encoder_headers( pv->x264, &nal, &nal_count );
/* Sequence Parameter Set */
memcpy(w->config->h264.sps, nal[0].p_payload + 4, nal[0].i_payload - 4);
w->config->h264.sps_length = nal[0].i_payload - 4;
/* Picture Parameter Set */
memcpy(w->config->h264.pps, nal[1].p_payload + 4, nal[1].i_payload - 4);
w->config->h264.pps_length = nal[1].i_payload - 4;
pv->api->picture_init( &pv->pic_in );
pv->pic_in.img.i_csp = X264_CSP_I420;
if (pv->api->bit_depth > 8)
{
pv->pic_in.img.i_csp |= X264_CSP_HIGH_DEPTH;
}
pv->pic_in.img.i_plane = 3;
return 0;
}
void encx264Close( hb_work_object_t * w )
{
hb_work_private_t * pv = w->private_data;
if (pv == NULL)
{
// Not initialized
return;
}
hb_chapter_queue_close(&pv->chapter_queue);
pv->api->encoder_close( pv->x264 );
free( pv );
w->private_data = NULL;
}
/*
* see comments in definition of 'frame_info' in pv struct for description
* of what these routines are doing.
*/
static void save_frame_info( hb_work_private_t * pv, hb_buffer_t * in )
{
int i = (in->s.start >> FRAME_INFO_MAX2) & FRAME_INFO_MASK;
pv->frame_info[i].duration = in->s.stop - in->s.start;
}
static int64_t get_frame_duration( hb_work_private_t * pv, int64_t pts )
{
int i = (pts >> FRAME_INFO_MAX2) & FRAME_INFO_MASK;
return pv->frame_info[i].duration;
}
static hb_buffer_t *nal_encode( hb_work_object_t *w, x264_picture_t *pic_out,
int i_nal, x264_nal_t *nal )
{
hb_buffer_t *buf = NULL;
hb_work_private_t *pv = w->private_data;
hb_job_t *job = pv->job;
/* Should be way too large */
buf = hb_video_buffer_init( job->width, job->height );
buf->size = 0;
buf->s.frametype = 0;
// use the pts to get the original frame's duration.
buf->s.duration = get_frame_duration( pv, pic_out->i_pts );
buf->s.start = pic_out->i_pts;
buf->s.stop = buf->s.start + buf->s.duration;
buf->s.renderOffset = pic_out->i_dts;
if ( !w->config->init_delay && pic_out->i_dts < 0 )
{
w->config->init_delay = -pic_out->i_dts;
}
/* Determine what type of frame we have. */
switch (pic_out->i_type)
{
case X264_TYPE_IDR:
buf->s.frametype = HB_FRAME_IDR;
break;
case X264_TYPE_P:
buf->s.frametype = HB_FRAME_P;
break;
case X264_TYPE_B:
buf->s.frametype = HB_FRAME_B;
break;
case X264_TYPE_BREF:
buf->s.frametype = HB_FRAME_BREF;
break;
case X264_TYPE_I:
default:
buf->s.frametype = HB_FRAME_I;
break;
}
buf->s.flags = 0;
if (pic_out->b_keyframe)
{
buf->s.flags |= HB_FLAG_FRAMETYPE_KEY;
/* if we have a chapter marker pending and this
frame's presentation time stamp is at or after
the marker's time stamp, use this as the
chapter start. */
hb_chapter_dequeue(pv->chapter_queue, buf);
}
/* Encode all the NALs we were given into buf.
NOTE: This code assumes one video frame per NAL (but there can
be other stuff like SPS and/or PPS). If there are multiple
frames we only get the duration of the first which will
eventually screw up the muxer & decoder. */
int i;
buf->s.flags &= ~HB_FLAG_FRAMETYPE_REF;
for( i = 0; i < i_nal; i++ )
{
int size = nal[i].i_payload;
memcpy(buf->data + buf->size, nal[i].p_payload, size);
if( size < 1 )
{
continue;
}
/* H.264 in .mp4 or .mkv */
switch( nal[i].i_type )
{
/* Sequence Parameter Set & Program Parameter Set go in the
* mp4 header so skip them here
*/
case NAL_SPS:
case NAL_PPS:
if (!job->inline_parameter_sets)
{
continue;
}
break;
case NAL_SLICE_IDR:
case NAL_SLICE:
case NAL_SEI:
default:
break;
}
/*
* Expose disposable bit to muxer.
*
* Also, since libx264 doesn't tell us when B-frames are
* themselves reference frames, figure it out on our own.
*/
if (nal[i].i_ref_idc != NAL_PRIORITY_DISPOSABLE)
{
if (buf->s.frametype == HB_FRAME_B)
{
buf->s.frametype = HB_FRAME_BREF;
}
buf->s.flags |= HB_FLAG_FRAMETYPE_REF;
}
buf->size += size;
}
// make sure we found at least one video frame
if ( buf->size <= 0 )
{
// no video - discard the buf
hb_buffer_close( &buf );
}
return buf;
}
static hb_buffer_t * expand_buf(int bit_depth, hb_buffer_t *in)
{
hb_buffer_t *buf;
int pp;
int shift = bit_depth - 8;
buf = hb_frame_buffer_init(AV_PIX_FMT_YUV420P16BE,
in->f.width, in->f.height);
for (pp = 0; pp < 3; pp++)
{
int xx, yy;
uint8_t *src = in->plane[pp].data;
uint16_t *dst = (uint16_t*)buf->plane[pp].data;
for (yy = 0; yy < in->plane[pp].height; yy++)
{
for (xx = 0; xx < in->plane[pp].width; xx++)
{
dst[xx] = (uint16_t)src[xx] << shift;
}
src += in->plane[pp].stride;
dst += buf->plane[pp].stride / 2;
}
}
return buf;
}
static hb_buffer_t *x264_encode( hb_work_object_t *w, hb_buffer_t *in )
{
hb_work_private_t *pv = w->private_data;
hb_job_t *job = pv->job;
hb_buffer_t *tmp = NULL;
/* Point x264 at our current buffers Y(UV) data. */
if (pv->pic_in.img.i_csp & X264_CSP_HIGH_DEPTH)
{
tmp = expand_buf(pv->api->bit_depth, in);
pv->pic_in.img.i_stride[0] = tmp->plane[0].stride;
pv->pic_in.img.i_stride[1] = tmp->plane[1].stride;
pv->pic_in.img.i_stride[2] = tmp->plane[2].stride;
pv->pic_in.img.plane[0] = tmp->plane[0].data;
pv->pic_in.img.plane[1] = tmp->plane[1].data;
pv->pic_in.img.plane[2] = tmp->plane[2].data;
}
else
{
pv->pic_in.img.i_stride[0] = in->plane[0].stride;
pv->pic_in.img.i_stride[1] = in->plane[1].stride;
pv->pic_in.img.i_stride[2] = in->plane[2].stride;
pv->pic_in.img.plane[0] = in->plane[0].data;
pv->pic_in.img.plane[1] = in->plane[1].data;
pv->pic_in.img.plane[2] = in->plane[2].data;
}
if( in->s.new_chap > 0 && job->chapter_markers )
{
/* chapters have to start with an IDR frame so request that this
frame be coded as IDR. Since there may be up to 16 frames
currently buffered in the encoder remember the timestamp so
when this frame finally pops out of the encoder we'll mark
its buffer as the start of a chapter. */
pv->pic_in.i_type = X264_TYPE_IDR;
hb_chapter_enqueue(pv->chapter_queue, in);
}
else
{
pv->pic_in.i_type = X264_TYPE_AUTO;
}
/* XXX this is temporary debugging code to check that the upstream
* modules (render & sync) have generated a continuous, self-consistent
* frame stream with the current frame's start time equal to the
* previous frame's stop time.
*/
if (pv->last_stop != AV_NOPTS_VALUE && pv->last_stop != in->s.start)
{
hb_log("encx264 input continuity err: last stop %"PRId64" start %"PRId64,
pv->last_stop, in->s.start);
}
pv->last_stop = in->s.stop;
// Remember info about this frame that we need to pass across
// the x264_encoder_encode call (since it reorders frames).
save_frame_info( pv, in );
/* Feed the input PTS to x264 so it can figure out proper output PTS */
pv->pic_in.i_pts = in->s.start;
x264_picture_t pic_out;
int i_nal;
x264_nal_t *nal;
pv->api->encoder_encode( pv->x264, &nal, &i_nal, &pv->pic_in, &pic_out );
if ( i_nal > 0 )
{
hb_buffer_close(&tmp);
return nal_encode( w, &pic_out, i_nal, nal );
}
hb_buffer_close(&tmp);
return NULL;
}
int encx264Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
hb_buffer_t ** buf_out )
{
hb_work_private_t *pv = w->private_data;
hb_buffer_t *in = *buf_in;
*buf_out = NULL;
if (in->s.flags & HB_BUF_FLAG_EOF)
{
// EOF on input. Flush any frames still in the decoder then
// send the eof downstream to tell the muxer we're done.
x264_picture_t pic_out;
int i_nal;
x264_nal_t *nal;
hb_buffer_list_t list;
hb_buffer_list_clear(&list);
// flush delayed frames
while ( pv->api->encoder_delayed_frames( pv->x264 ) )
{
pv->api->encoder_encode( pv->x264, &nal, &i_nal, NULL, &pic_out );
if ( i_nal == 0 )
continue;
if ( i_nal < 0 )
break;
hb_buffer_t *buf = nal_encode( w, &pic_out, i_nal, nal );
hb_buffer_list_append(&list, buf);
}
// add the EOF to the end of the chain
hb_buffer_list_append(&list, in);
*buf_out = hb_buffer_list_clear(&list);
*buf_in = NULL;
return HB_WORK_DONE;
}
// Not EOF - encode the packet & wrap it in a NAL
*buf_out = x264_encode( w, in );
return HB_WORK_OK;
}
static int apply_h264_profile(const x264_api_t *api, x264_param_t *param,
const char *h264_profile, int verbose)
{
const char * const * profile_names;
if (api->bit_depth == 10)
{
profile_names = hb_h264_profile_names_10bit;
}
else
{
profile_names = hb_h264_profile_names_8bit;
}
if (h264_profile != NULL &&
strcasecmp(h264_profile, profile_names[0]) != 0)
{
/*
* baseline profile doesn't support interlacing
*/
if ((param->b_interlaced ||
param->b_fake_interlaced) &&
!strcasecmp(h264_profile, "baseline"))
{
if (verbose)
{
hb_log("apply_h264_profile [warning]: baseline profile doesn't support interlacing, disabling");
}
param->b_interlaced = param->b_fake_interlaced = 0;
}
/*
* lossless requires High 4:4:4 Predictive profile
*/
int qp_bd_offset = 6 * (api->bit_depth - 8);
if (strcasecmp(h264_profile, "high444") != 0 &&
((param->rc.i_rc_method == X264_RC_CQP && param->rc.i_qp_constant <= 0) ||
(param->rc.i_rc_method == X264_RC_CRF && (int)(param->rc.f_rf_constant + qp_bd_offset) <= 0)))
{
if (verbose)
{
hb_log("apply_h264_profile [warning]: lossless requires high444 profile, disabling");
}
if (param->rc.i_rc_method == X264_RC_CQP)
{
param->rc.i_qp_constant = 1;
}
else
{
param->rc.f_rf_constant = 1 - qp_bd_offset;
}
}
return api->param_apply_profile(param, h264_profile);
}
else if (!strcasecmp(h264_profile, profile_names[0]))
{