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-rw-r--r--libhb/encx264.c301
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diff --git a/libhb/encx264.c b/libhb/encx264.c
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+++ b/libhb/encx264.c
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+/* $Id: encx264.c,v 1.21 2005/11/04 13:09:41 titer Exp $
+
+ This file is part of the HandBrake source code.
+ Homepage: <http://handbrake.m0k.org/>.
+ It may be used under the terms of the GNU General Public License. */
+
+#include <stdarg.h>
+
+#include "hb.h"
+
+#include "x264.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
+};
+
+struct hb_work_private_s
+{
+ hb_job_t * job;
+ x264_t * x264;
+ x264_picture_t pic_in;
+ x264_picture_t pic_out;
+
+ char filename[1024];
+};
+
+/***********************************************************************
+ * hb_work_encx264_init
+ ***********************************************************************
+ *
+ **********************************************************************/
+int encx264Init( hb_work_object_t * w, hb_job_t * job )
+{
+ x264_param_t param;
+ x264_nal_t * nal;
+ int nal_count;
+
+ hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
+ w->private_data = pv;
+
+ pv->job = job;
+
+ memset( pv->filename, 0, 1024 );
+ hb_get_tempory_filename( job->h, pv->filename, "x264.log" );
+
+ x264_param_default( &param );
+
+ param.i_threads = hb_get_cpu_count();
+ param.i_width = job->width;
+ param.i_height = job->height;
+ param.i_fps_num = job->vrate;
+ param.i_fps_den = job->vrate_base;
+ param.i_keyint_max = 20 * job->vrate / job->vrate_base;
+ param.i_log_level = X264_LOG_INFO;
+ if( job->h264_level )
+ {
+ param.i_threads = 1;
+ param.b_cabac = 0;
+ param.i_level_idc = job->h264_level;
+ hb_log( "encx264: encoding at level %i",
+ param.i_level_idc );
+ }
+
+ /* Slightly faster with minimal quality lost */
+ param.analyse.i_subpel_refine = 4;
+
+ /* This section passes the string x264opts to libx264 for parsing into parameter names and values.
+
+ The string is set up like this:
+ option1=value1:option2=value 2
+
+ So, you have to iterate through based on the colons, and then put the left side of the equals sign in "name"
+ and the right side into "value." Then you hand those strings off to x264 for interpretation.
+
+ This is all based on the universal x264 option handling Loren Merritt implemented in the Mplayer/Mencoder project.
+ */
+
+ char *x264opts = job->x264opts;
+ if(x264opts != NULL && *x264opts != '\0')
+ {
+ while(*x264opts)
+ {
+ char *name = x264opts;
+ char *value;
+ int ret;
+
+ x264opts += strcspn(x264opts, ":");
+ if(*x264opts)
+ {
+ *x264opts = 0;
+ x264opts++;
+ }
+
+ value = strchr( name, '=' );
+ if(value)
+ {
+ *value = 0;
+ value++;
+ }
+
+ /*
+ When B-frames are enabled, the max frame count increments by 1 (regardless of the number of B-frames).
+ If you don't change the duration of the video track when you mux, libmp4 barfs.
+ So, check if the x264opts are using B-frames, and when they are, set the boolean job->areBframes as true.
+ */
+
+ if (!(strcmp(name, "bframes")))
+ {
+ if (atoi(value) > 0)
+ {
+ job->areBframes = 1;
+ }
+ }
+
+ /* Here's where the strings are passed to libx264 for parsing. */
+ ret = x264_param_parse(&param, name, value);
+
+ /* Let x264 sanity check the options for us*/
+ if(ret == X264_PARAM_BAD_NAME)
+ printf("x264 options: Unknown suboption %s\n", name);
+ if(ret == X264_PARAM_BAD_VALUE)
+ printf("x264 options: Bad argument %s=%s\n", name, value ? value : "(null)");
+ }
+ }
+
+
+ if( job->pixel_ratio )
+ {
+ param.vui.i_sar_width = job->pixel_aspect_width;
+ param.vui.i_sar_height = job->pixel_aspect_height;
+
+ hb_log( "encx264: encoding with stored aspect %d/%d",
+ param.vui.i_sar_width, param.vui.i_sar_height );
+ }
+
+
+ if( job->vquality >= 0.0 && job->vquality <= 1.0 )
+ {
+ switch(job->crf)
+ {
+ case 1:
+ /*Constant RF*/
+ param.rc.i_rc_method = X264_RC_CRF;
+ param.rc.f_rf_constant = 51 - job->vquality * 51;
+ hb_log( "encx264: Encoding at constant RF %f",
+ param.rc.f_rf_constant );
+ break;
+
+ case 0:
+ /*Constant QP*/
+ param.rc.i_rc_method = X264_RC_CQP;
+ param.rc.i_qp_constant = 51 - job->vquality * 51;
+ hb_log( "encx264: encoding at constant QP %d",
+ param.rc.i_qp_constant );
+ break;
+ }
+ }
+ else
+ {
+ /* Rate control */
+ param.rc.i_rc_method = X264_RC_ABR;
+ param.rc.i_bitrate = job->vbitrate;
+ switch( job->pass )
+ {
+ case 1:
+ param.rc.b_stat_write = 1;
+ param.rc.psz_stat_out = pv->filename;
+ break;
+ case 2:
+ param.rc.b_stat_read = 1;
+ param.rc.psz_stat_in = pv->filename;
+ break;
+ }
+ }
+
+ hb_log( "encx264: opening libx264 (pass %d)", job->pass );
+ pv->x264 = x264_encoder_open( &param );
+
+ x264_encoder_headers( pv->x264, &nal, &nal_count );
+
+ /* Sequence Parameter Set */
+ w->config->h264.sps_length = 1 + nal[1].i_payload;
+ w->config->h264.sps[0] = 0x67;
+ memcpy( &w->config->h264.sps[1], nal[1].p_payload, nal[1].i_payload );
+
+ /* Picture Parameter Set */
+ w->config->h264.pps_length = 1 + nal[2].i_payload;
+ w->config->h264.pps[0] = 0x68;
+ memcpy( &w->config->h264.pps[1], nal[2].p_payload, nal[2].i_payload );
+
+ x264_picture_alloc( &pv->pic_in, X264_CSP_I420,
+ job->width, job->height );
+
+ return 0;
+}
+
+void encx264Close( hb_work_object_t * w )
+{
+ hb_work_private_t * pv = w->private_data;
+ x264_encoder_close( pv->x264 );
+
+ /* TODO */
+}
+
+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_job_t * job = pv->job;
+ hb_buffer_t * in = *buf_in, * buf;
+ int i_nal;
+ x264_nal_t * nal;
+ int i;
+
+ /* XXX avoid this memcpy ? */
+ memcpy( pv->pic_in.img.plane[0], in->data, job->width * job->height );
+ if( job->grayscale )
+ {
+ /* XXX x264 has currently no option for grayscale encoding */
+ memset( pv->pic_in.img.plane[1], 0x80, job->width * job->height / 4 );
+ memset( pv->pic_in.img.plane[2], 0x80, job->width * job->height / 4 );
+ }
+ else
+ {
+ memcpy( pv->pic_in.img.plane[1], in->data + job->width * job->height,
+ job->width * job->height / 4 );
+ memcpy( pv->pic_in.img.plane[2], in->data + 5 * job->width *
+ job->height / 4, job->width * job->height / 4 );
+ }
+
+ pv->pic_in.i_type = X264_TYPE_AUTO;
+ pv->pic_in.i_qpplus1 = 0;
+
+ x264_encoder_encode( pv->x264, &nal, &i_nal,
+ &pv->pic_in, &pv->pic_out );
+
+ /* Should be way too large */
+ buf = hb_buffer_init( 3 * job->width * job->height / 2 );
+ buf->size = 0;
+ buf->start = in->start;
+ buf->stop = in->stop;
+ buf->key = 0;
+
+ for( i = 0; i < i_nal; i++ )
+ {
+ int size, data;
+
+ data = buf->alloc - buf->size;
+ if( ( size = x264_nal_encode( buf->data + buf->size, &data,
+ 1, &nal[i] ) ) < 1 )
+ {
+ continue;
+ }
+
+ if( job->mux & HB_MUX_AVI )
+ {
+ if( nal[i].i_ref_idc == NAL_PRIORITY_HIGHEST )
+ {
+ buf->key = 1;
+ }
+ buf->size += size;
+ continue;
+ }
+
+ /* H.264 in .mp4 */
+ switch( buf->data[buf->size+4] & 0x1f )
+ {
+ case 0x7:
+ case 0x8:
+ /* SPS, PPS */
+ break;
+
+ default:
+ /* H.264 in mp4 (stolen from mp4creator) */
+ buf->data[buf->size+0] = ( ( size - 4 ) >> 24 ) & 0xFF;
+ buf->data[buf->size+1] = ( ( size - 4 ) >> 16 ) & 0xFF;
+ buf->data[buf->size+2] = ( ( size - 4 ) >> 8 ) & 0xFF;
+ buf->data[buf->size+3] = ( ( size - 4 ) >> 0 ) & 0xFF;
+ if( nal[i].i_ref_idc == NAL_PRIORITY_HIGHEST )
+ {
+ buf->key = 1;
+ }
+ buf->size += size;
+ }
+ }
+
+ *buf_out = buf;
+
+ return HB_WORK_OK;
+}
+
+
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