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vlc/modules/codec/x264.c

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/*****************************************************************************
* x264.c: h264 video encoder
*****************************************************************************
* Copyright (C) 2004 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/sout.h>
#include <vlc/decoder.h>
#include <x264.h>
#define SOUT_CFG_PREFIX "sout-x264-"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
#define QP_TEXT N_("Quantizer parameter")
#define QP_LONGTEXT N_( \
"This selects the quantizer to use (1 to 51). Lower values result in " \
"better fidelity, but higher bitrates. 26 is a good default value." )
#define QPMIN_TEXT N_("Minimum quantizer parameter")
#define QPMIN_LONGTEXT N_( "Minimum quantizer, 15/35 seems to be a useful " \
"range." )
#define QPMAX_TEXT N_("Maximum quantizer parameter")
#define QPMAX_LONGTEXT N_( "Maximum quantizer parameter." )
#define CABAC_TEXT N_("Enable CABAC")
#define CABAC_LONGTEXT N_( "Enable CABAC (Context-Adaptive Binary Arithmetic "\
"Coding). Slightly slows down encoding and decoding, but should save " \
"10-15% bitrate." )
#define LOOPF_TEXT N_("Enable loop filter")
#define LOOPF_LONGTEXT N_( "Use deblocking loop filter (increases quality).")
#define ANALYSE_TEXT N_("Analyse mode")
#define ANALYSE_LONGTEXT N_( "This selects the analysing mode.")
#define TOLERANCE_TEXT N_("Bitrate tolerance")
#define TOLERANCE_LONGTEXT N_( "Sets the allowed variance in average " \
"bitrate.")
#define VBV_MAXRATE_TEXT N_("Maximum local bitrate")
#define VBV_MAXRATE_LONGTEXT N_( "Sets a maximum local bitrate in kbits/s.")
#define VBV_BUFSIZE_TEXT N_("Averaging period for the maximum local bitrate")
#define VBV_BUFSIZE_LONGTEXT N_( "Sets an averaging period for the maximum " \
"local bitrate, in kbits/s.")
#define VBV_INIT_TEXT N_("Initial buffer occupancy")
#define VBV_INIT_LONGTEXT N_( "Sets the initial buffer occupancy as a " \
"fraction of the buffer size.")
#define KEYINT_TEXT N_("Sets maximum interval between IDR-frames")
#define KEYINT_LONGTEXT N_( "Larger values save bits, thus improve quality "\
"for a given bitrate, at the cost of seeking precision." )
#define KEYINT_MIN_TEXT N_("Sets minimum interval between IDR-frames")
#define KEYINT_MIN_LONGTEXT N_("In H.264, I-Frames do not necessarily bound " \
"a closed GOP because it is allowable for a P-frame to be predicted from "\
"more frames than just the one frame before it (also see frameref). " \
"Therefore, I-frames are not necessarily seekable. " \
"IDR-Frames restrict subsequent P-frames from referring to any frame " \
"prior to the IDR-Frame. \n" \
"If scenecuts appear within this interval, they are still encoded as " \
"I-frames, but do not start a new GOP. Default value is keyint * 0.4." )
#define BFRAMES_TEXT N_("B frames")
#define BFRAMES_LONGTEXT N_( "Number of consecutive B-Frames between I and " \
"P-frames." )
#define BPYRAMID_TEXT N_("B pyramid")
#define BPYRAMID_LONGTEXT N_( "Allows B-frames to be used as references for " \
"predicting other frames." )
#define FRAMEREF_TEXT N_("Number of previous frames used as predictors.")
#define FRAMEREF_LONGTEXT N_( "This is effective in Anime, but seems to " \
"make little difference in live-action source material. Some decoders " \
"are unable to deal with large frameref values." )
#define SCENE_TEXT N_("Scene-cut detection.")
#define SCENE_LONGTEXT N_( "Controls how aggressively to insert extra " \
"I-frames. With small values of scenecut, the codec often has to force " \
"an I-frame when it would exceed keyint. " \
"Good values of scenecut may find a better location for the I-frame. " \
"Large values use more I-frames than necessary, thus wasting bits. " \
"-1 disables scene-cut detection, so I-frames are be inserted only every "\
"other keyint frames, which probably leads to ugly encoding artifacts." )
#define SUBPEL_TEXT N_("Sub-pixel refinement quality.")
#define SUBPEL_LONGTEXT N_( "This parameter controls quality versus speed " \
"tradeoffs involved in the motion estimation decision process " \
"(lower = quicker and higher = better quality)." )
#define ME_TEXT N_("Motion estimation algorithm.")
#define ME_LONGTEXT N_( "Selects the motion estimation algorithm: "\
" dia - diamond (fastest) \n" \
" hex - hexagon (default setting) \n" \
" umh - uneven multi-hexagon (better but slower) \n" \
" esa - exhaustive search (extremely slow, primarily for testing) " )
#define MERANGE_TEXT N_("Motion estimation search range.")
#define MERANGE_LONGTEXT N_( "Maximum distance to search for motion estimation, "\
"measured from predicted position(s). Default of 16 is good for most footage, "\
"high motion sequences may benefit from settings between 24-32." )
#define NO_PSNR_TEXT N_("Disable PSNR calculation.")
#define NO_PSNR_LONGTEXT N_( "This has no effect on actual encoding quality, "\
"it just prevents the stats from being calculated (for speed)." )
#define NO_B_ADAPT_TEXT N_("Disable adaptive B-frames.")
#define NO_B_ADAPT_LONGTEXT N_( "If this is on, the specified number of consequtive B-frames "\
"will always be used, except possibly before an I-frame. " )
#define B_BIAS_TEXT N_("Bias the choice to use B-frames.")
#define B_BIAS_LONGTEXT N_( "Positive values cause more= B-frames, negative values cause less B-frames. " )
#if X264_BUILD >= 23
static char *enc_me_list[] =
{ "", "dia", "hex", "umh", "esa" };
static char *enc_me_list_text[] =
{ N_("default"), N_("dia"), N_("hex"), N_("umh"), N_("esa") };
#endif
static char *enc_analyse_list[] =
{ "", "all", "normal", "fast", "none" };
static char *enc_analyse_list_text[] =
{ N_("default"), N_("all"), N_("slow"), N_("normal"),
N_("fast"), N_("none") };
vlc_module_begin();
set_description( _("H264 encoder (using x264 library)"));
set_capability( "encoder", 200 );
set_callbacks( Open, Close );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_VCODEC );
add_integer( SOUT_CFG_PREFIX "qp", 0, NULL, QP_TEXT, QP_LONGTEXT,
VLC_FALSE );
change_integer_range( 0, 51 );
add_integer( SOUT_CFG_PREFIX "qp-min", 10, NULL, QPMIN_TEXT,
QPMIN_LONGTEXT, VLC_FALSE );
change_integer_range( 0, 51 );
add_integer( SOUT_CFG_PREFIX "qp-max", 51, NULL, QPMAX_TEXT,
QPMAX_LONGTEXT, VLC_FALSE );
change_integer_range( 0, 51 );
add_bool( SOUT_CFG_PREFIX "cabac", 1, NULL, CABAC_TEXT, CABAC_LONGTEXT,
VLC_FALSE );
add_bool( SOUT_CFG_PREFIX "loopfilter", 1, NULL, LOOPF_TEXT,
LOOPF_LONGTEXT, VLC_FALSE );
add_string( SOUT_CFG_PREFIX "analyse", "", NULL, ANALYSE_TEXT,
ANALYSE_LONGTEXT, VLC_FALSE );
change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
add_float( SOUT_CFG_PREFIX "tolerance", 1.0, NULL, TOLERANCE_TEXT,
TOLERANCE_LONGTEXT, VLC_FALSE );
change_float_range( 0, 100 );
add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
VBV_MAXRATE_LONGTEXT, VLC_FALSE );
add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
VBV_BUFSIZE_LONGTEXT, VLC_FALSE );
add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
VBV_INIT_LONGTEXT, VLC_FALSE );
change_float_range( 0, 1 );
add_integer( SOUT_CFG_PREFIX "keyint", 250, NULL, KEYINT_TEXT,
KEYINT_LONGTEXT, VLC_FALSE );
add_integer( SOUT_CFG_PREFIX "keyint-min", 0, NULL, KEYINT_MIN_TEXT,
KEYINT_MIN_LONGTEXT, VLC_FALSE );
add_integer( SOUT_CFG_PREFIX "bframes", 0, NULL, BFRAMES_TEXT,
BFRAMES_LONGTEXT, VLC_FALSE );
change_integer_range( 0, 16 );
add_bool( SOUT_CFG_PREFIX "bpyramid", 0, NULL, BPYRAMID_TEXT,
BPYRAMID_LONGTEXT, VLC_FALSE );
add_integer( SOUT_CFG_PREFIX "frameref", 1, NULL, FRAMEREF_TEXT,
FRAMEREF_LONGTEXT, VLC_FALSE );
change_integer_range( 1, 15 );
add_integer( SOUT_CFG_PREFIX "scenecut", 40, NULL, SCENE_TEXT,
SCENE_LONGTEXT, VLC_FALSE );
change_integer_range( -1, 100 );
#if X264_BUILD >= 30
add_integer( SOUT_CFG_PREFIX "subpel", 6, NULL, SUBPEL_TEXT,
SUBPEL_LONGTEXT, VLC_FALSE );
change_integer_range( 1, 6 );
#else
add_integer( SOUT_CFG_PREFIX "subpel", 5, NULL, SUBPEL_TEXT,
SUBPEL_LONGTEXT, VLC_FALSE );
change_integer_range( 1, 5 );
#endif
#if X264_BUILD >= 23
/* r221 */ add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
ME_LONGTEXT, VLC_FALSE );
change_string_list( enc_me_list, enc_me_list_text, 0 );
/* r221 */ add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
MERANGE_LONGTEXT, VLC_FALSE );
change_integer_range( 1, 64 );
#endif
/* r44 */ add_bool( SOUT_CFG_PREFIX "no-psnr", 0, NULL, NO_PSNR_TEXT,
NO_PSNR_LONGTEXT, VLC_FALSE );
#if X264_BUILD >= 0x0013
/* r137 */ add_bool( SOUT_CFG_PREFIX "no-b-adapt", 0, NULL, NO_B_ADAPT_TEXT,
NO_B_ADAPT_LONGTEXT, VLC_FALSE );
/* r137 */ add_integer( SOUT_CFG_PREFIX "b-bias", 0, NULL, B_BIAS_TEXT,
B_BIAS_LONGTEXT, VLC_FALSE );
change_integer_range( -100, 100 );
#endif
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static const char *ppsz_sout_options[] = {
"qp", "qp-min", "qp-max", "cabac", "loopfilter", "analyse",
"keyint", "keyint-min", "bframes", "bpyramid", "frameref", "scenecut",
"subpel", "me", "merange", "no-psnr", "no-b-adapt", "b-bias", "tolerance",
"vbv-maxrate", "vbv-bufsize", "vbv-init", NULL
};
static block_t *Encode( encoder_t *, picture_t * );
struct encoder_sys_t
{
x264_t *h;
x264_param_t param;
int i_buffer;
uint8_t *p_buffer;
mtime_t i_last_ref_pts;
};
/*****************************************************************************
* Open: probe the encoder
*****************************************************************************/
static int Open ( vlc_object_t *p_this )
{
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys;
vlc_value_t val;
int i_qmin = 0, i_qmax = 0;
if( p_enc->fmt_out.i_codec != VLC_FOURCC( 'h', '2', '6', '4' ) &&
!p_enc->b_force )
{
return VLC_EGENERIC;
}
#if X264_BUILD < 37
if( p_enc->fmt_in.video.i_width % 16 != 0 ||
p_enc->fmt_in.video.i_height % 16!= 0 )
{
msg_Warn( p_enc, "size is not a multiple of 16 (%ix%i)",
p_enc->fmt_in.video.i_width, p_enc->fmt_in.video.i_height );
if( p_enc->fmt_in.video.i_width < 16 ||
p_enc->fmt_in.video.i_height < 16 )
{
msg_Err( p_enc, "video is too small to be cropped" );
return VLC_EGENERIC;
}
msg_Warn( p_enc, "cropping video to %ix%i",
p_enc->fmt_in.video.i_width >> 4 << 4,
p_enc->fmt_in.video.i_height >> 4 << 4 );
}
#endif
sout_CfgParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );
p_enc->fmt_out.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');
p_enc->pf_encode_video = Encode;
p_enc->pf_encode_audio = NULL;
p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
p_sys->i_last_ref_pts = 0;
x264_param_default( &p_sys->param );
p_sys->param.i_width = p_enc->fmt_in.video.i_width;
p_sys->param.i_height = p_enc->fmt_in.video.i_height;
#if X264_BUILD < 37
p_sys->param.i_width = p_sys->param.i_width >> 4 << 4;
p_sys->param.i_height = p_sys->param.i_height >> 4 << 4;
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "qp-min", &val );
if( val.i_int >= 1 && val.i_int <= 51 ) i_qmin = val.i_int;
var_Get( p_enc, SOUT_CFG_PREFIX "qp-max", &val );
if( val.i_int >= 1 && val.i_int <= 51 ) i_qmax = val.i_int;
var_Get( p_enc, SOUT_CFG_PREFIX "qp", &val );
if( val.i_int >= 1 && val.i_int <= 51 )
{
if( i_qmin > val.i_int ) i_qmin = val.i_int;
if( i_qmax < val.i_int ) i_qmax = val.i_int;
#if X264_BUILD >= 0x000a
p_sys->param.rc.i_qp_constant = val.i_int;
p_sys->param.rc.i_qp_min = i_qmin;
p_sys->param.rc.i_qp_max = i_qmax;
#else
p_sys->param.i_qp_constant = val.i_int;
#endif
}
else
{
/* No QP -> constant bitrate */
#if X264_BUILD >= 0x000a
p_sys->param.rc.b_cbr = 1;
p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;
#if X264_BUILD >= 24
var_Get( p_enc, SOUT_CFG_PREFIX "tolerance", &val );
p_sys->param.rc.f_rate_tolerance = val.f_float;
var_Get( p_enc, SOUT_CFG_PREFIX "vbv-maxrate", &val );
p_sys->param.rc.i_vbv_max_bitrate = val.i_int;
var_Get( p_enc, SOUT_CFG_PREFIX "vbv-bufsize", &val );
p_sys->param.rc.i_vbv_buffer_size = val.i_int;
if( !val.i_int )
p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate;
var_Get( p_enc, SOUT_CFG_PREFIX "vbv-init", &val );
p_sys->param.rc.f_vbv_buffer_init = val.f_float;
#else
p_sys->param.rc.i_rc_buffer_size = p_sys->param.rc.i_bitrate;
p_sys->param.rc.i_rc_init_buffer = p_sys->param.rc.i_bitrate / 4;
#endif
#endif
}
var_Get( p_enc, SOUT_CFG_PREFIX "cabac", &val );
p_sys->param.b_cabac = val.b_bool;
var_Get( p_enc, SOUT_CFG_PREFIX "loopfilter", &val );
p_sys->param.b_deblocking_filter = val.b_bool;
var_Get( p_enc, SOUT_CFG_PREFIX "keyint", &val );
#if X264_BUILD >= 0x000e
if( val.i_int > 0 ) p_sys->param.i_keyint_max = val.i_int;
if( val.i_int > 0 ) p_sys->param.i_keyint_min = val.i_int * 0.4;
#else
if( val.i_int > 0 ) p_sys->param.i_iframe = val.i_int;
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "keyint-min", &val );
#if X264_BUILD >= 0x000e
if( val.i_int > 0 ) p_sys->param.i_keyint_min = val.i_int;
#else
if( val.i_int > 0 ) p_sys->param.i_idrframe = val.i_int;
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "bframes", &val );
if( val.i_int >= 0 && val.i_int <= 16 ) p_sys->param.i_bframe = val.i_int;
#if X264_BUILD >= 22
var_Get( p_enc, SOUT_CFG_PREFIX "bpyramid", &val );
p_sys->param.b_bframe_pyramid = val.b_bool;
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "frameref", &val );
if( val.i_int > 0 && val.i_int <= 15 )
p_sys->param.i_frame_reference = val.i_int;
var_Get( p_enc, SOUT_CFG_PREFIX "scenecut", &val );
#if X264_BUILD >= 0x000b
if( val.i_int >= -1 && val.i_int <= 100 )
p_sys->param.i_scenecut_threshold = val.i_int;
#endif
#if X264_BUILD >= 22
var_Get( p_enc, SOUT_CFG_PREFIX "subpel", &val );
#if X264_BUILD >= 30
if( val.i_int >= 1 && val.i_int <= 6 )
#else
if( val.i_int >= 1 && val.i_int <= 5 )
#endif
p_sys->param.analyse.i_subpel_refine = val.i_int;
#endif
#if X264_BUILD >= 23
var_Get( p_enc, SOUT_CFG_PREFIX "me", &val );
if( !strcmp( val.psz_string, "dia" ) )
{
p_sys->param.analyse.i_me_method = X264_ME_DIA;
}
else if( !strcmp( val.psz_string, "hex" ) )
{
p_sys->param.analyse.i_me_method = X264_ME_HEX;
}
else if( !strcmp( val.psz_string, "umh" ) )
{
p_sys->param.analyse.i_me_method = X264_ME_UMH;
}
else if( !strcmp( val.psz_string, "esa" ) )
{
p_sys->param.analyse.i_me_method = X264_ME_ESA;
}
if( val.psz_string ) free( val.psz_string );
var_Get( p_enc, SOUT_CFG_PREFIX "merange", &val );
if( val.i_int >= 1 && val.i_int <= 64 ) p_sys->param.analyse.i_me_range = val.i_int;
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "no-psnr", &val );
p_sys->param.analyse.b_psnr = ! val.b_bool;
#if X264_BUILD >= 0x0013
var_Get( p_enc, SOUT_CFG_PREFIX "no-b-adapt", &val );
p_sys->param.b_bframe_adaptive = ! val.b_bool;
var_Get( p_enc, SOUT_CFG_PREFIX "b-bias", &val );
if( val.i_int >= -100 && val.i_int <= 100 )
p_sys->param.i_bframe_bias = val.i_int;
#endif
#ifndef X264_ANALYSE_BSUB16x16
# define X264_ANALYSE_BSUB16x16 0
#endif
var_Get( p_enc, SOUT_CFG_PREFIX "analyse", &val );
if( !strcmp( val.psz_string, "none" ) )
{
p_sys->param.analyse.inter = 0;
}
else if( !strcmp( val.psz_string, "fast" ) )
{
p_sys->param.analyse.inter = X264_ANALYSE_I4x4;
}
else if( !strcmp( val.psz_string, "normal" ) )
{
p_sys->param.analyse.inter =
X264_ANALYSE_I4x4 | X264_ANALYSE_PSUB16x16;
}
else if( !strcmp( val.psz_string, "slow" ) )
{
p_sys->param.analyse.inter =
X264_ANALYSE_I4x4 |
X264_ANALYSE_PSUB16x16 | X264_ANALYSE_PSUB8x8 |
X264_ANALYSE_BSUB16x16;
}
else if( !strcmp( val.psz_string, "all" ) )
{
p_sys->param.analyse.inter =
X264_ANALYSE_I4x4 |
X264_ANALYSE_PSUB16x16 | X264_ANALYSE_PSUB8x8 |
X264_ANALYSE_BSUB16x16;
#ifdef X264_ANALYSE_I8x8
p_sys->param.analyse.inter |= X264_ANALYSE_I8x8;
p_sys->param.analyse.b_transform_8x8 = 1;
#endif
}
if( val.psz_string ) free( val.psz_string );
if( p_enc->fmt_in.video.i_aspect > 0 )
{
int64_t i_num, i_den;
int i_dst_num, i_dst_den;
i_num = p_enc->fmt_in.video.i_aspect *
(int64_t)p_enc->fmt_in.video.i_height;
i_den = VOUT_ASPECT_FACTOR * p_enc->fmt_in.video.i_width;
vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
p_sys->param.vui.i_sar_width = i_dst_num;
p_sys->param.vui.i_sar_height = i_dst_den;
}
if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
{
p_sys->param.i_fps_num = p_enc->fmt_in.video.i_frame_rate;
p_sys->param.i_fps_den = p_enc->fmt_in.video.i_frame_rate_base;
}
if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_MMX) )
{
p_sys->param.cpu &= ~X264_CPU_MMX;
}
if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_MMXEXT) )
{
p_sys->param.cpu &= ~X264_CPU_MMXEXT;
}
if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_SSE) )
{
p_sys->param.cpu &= ~X264_CPU_SSE;
}
if( !(p_enc->p_libvlc->i_cpu & CPU_CAPABILITY_SSE2) )
{
p_sys->param.cpu &= ~X264_CPU_SSE2;
}
#if X264_BUILD >= 29
if( p_enc->i_threads >= 1 )
p_sys->param.i_threads = p_enc->i_threads;
#endif
/* Open the encoder */
p_sys->h = x264_encoder_open( &p_sys->param );
/* alloc mem */
p_sys->i_buffer = 4 * p_enc->fmt_in.video.i_width *
p_enc->fmt_in.video.i_height + 1000;
p_sys->p_buffer = malloc( p_sys->i_buffer );
/* get the globals headers */
p_enc->fmt_out.i_extra = 0;
p_enc->fmt_out.p_extra = NULL;
#if 0
x264_encoder_headers( p_sys->h, &nal, &i_nal );
for( i = 0; i < i_nal; i++ )
{
int i_size = p_sys->i_buffer;
x264_nal_encode( p_sys->p_buffer, &i_size, 1, &nal[i] );
p_enc->fmt_out.p_extra = realloc( p_enc->fmt_out.p_extra, p_enc->fmt_out.i_extra + i_size );
memcpy( p_enc->fmt_out.p_extra + p_enc->fmt_out.i_extra,
p_sys->p_buffer, i_size );
p_enc->fmt_out.i_extra += i_size;
}
#endif
return VLC_SUCCESS;
}
/****************************************************************************
* Encode:
****************************************************************************/
static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
{
encoder_sys_t *p_sys = p_enc->p_sys;
x264_picture_t pic;
x264_nal_t *nal;
block_t *p_block;
int i_nal, i_out, i;
/* init pic */
memset( &pic, 0, sizeof( x264_picture_t ) );
pic.i_pts = p_pict->date;
pic.img.i_csp = X264_CSP_I420;
pic.img.i_plane = p_pict->i_planes;
for( i = 0; i < p_pict->i_planes; i++ )
{
pic.img.plane[i] = p_pict->p[i].p_pixels;
pic.img.i_stride[i] = p_pict->p[i].i_pitch;
}
#if X264_BUILD >= 0x0013
x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic, &pic );
#else
x264_encoder_encode( p_sys->h, &nal, &i_nal, &pic );
#endif
if( !i_nal ) return NULL;
for( i = 0, i_out = 0; i < i_nal; i++ )
{
int i_size = p_sys->i_buffer - i_out;
x264_nal_encode( p_sys->p_buffer + i_out, &i_size, 1, &nal[i] );
i_out += i_size;
}
p_block = block_New( p_enc, i_out );
memcpy( p_block->p_buffer, p_sys->p_buffer, i_out );
if( pic.i_type == X264_TYPE_IDR || pic.i_type == X264_TYPE_I )
p_block->i_flags |= BLOCK_FLAG_TYPE_I;
else if( pic.i_type == X264_TYPE_P )
p_block->i_flags |= BLOCK_FLAG_TYPE_P;
else if( pic.i_type == X264_TYPE_B )
p_block->i_flags |= BLOCK_FLAG_TYPE_B;
/* This isn't really valid for streams with B-frames */
p_block->i_length = I64C(1000000) *
p_enc->fmt_in.video.i_frame_rate_base /
p_enc->fmt_in.video.i_frame_rate;
p_block->i_dts = p_block->i_pts = pic.i_pts;
if( p_sys->param.i_bframe > 0 )
{
if( p_block->i_flags & BLOCK_FLAG_TYPE_B )
{
p_block->i_dts = p_block->i_pts;
}
else
{
if( p_sys->i_last_ref_pts )
{
p_block->i_dts = p_sys->i_last_ref_pts;
}
else
{
/* Let's put something sensible */
p_block->i_dts = p_block->i_pts;
}
p_sys->i_last_ref_pts = p_block->i_pts;
}
}
return p_block;
}
/*****************************************************************************
* CloseEncoder: x264 encoder destruction
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys = p_enc->p_sys;
x264_encoder_close( p_sys->h );
free( p_sys->p_buffer );
free( p_sys );
}