* x264: wrapper for libx264 encoder (h264 encoder, you can find it at

http://lyra.via.ecp.fr). use qmin==qmax to change the qp.

modules/codec/Modules.am

@@ -18,3 +18,4 @@ SOURCES_subsdec = subsdec.c
 SOURCES_faad = faad.c
 SOURCES_dvbsub = dvbsub.c
 SOURCES_mash = mash.cpp
+SOURCES_x264 = x264.c

modules/codec/x264.c

+/*****************************************************************************
+ * x264.c: h264 video encoder
+ *****************************************************************************
+ * Copyright (C) 2004 VideoLAN
+ * $Id: encoder.c 7342 2004-04-13 14:13:07Z gbazin $
+ *
+ * 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/decoder.h>
+
+#include <x264.h>
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int  Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+
+vlc_module_begin();
+    set_description( _("h264 video encoder using x264 library"));
+    set_capability( "encoder", 10 );
+    set_callbacks( Open, Close );
+vlc_module_end();
+
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static block_t *Encode( encoder_t *, picture_t * );
+
+struct encoder_sys_t
+{
+    x264_t          *h;
+    x264_param_t    param;
+    x264_picture_t  *pic;
+
+    int             i_buffer;
+    uint8_t         *p_buffer;
+};
+
+/*****************************************************************************
+ * 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;
+    int           i_nal;
+    x264_nal_t    *nal;
+
+    int i;
+
+    if( p_enc->fmt_out.i_cat != VIDEO_ES ||
+        p_enc->fmt_out.i_codec != VLC_FOURCC( 'h', '2', '6', '4' ) )
+    {
+        return VLC_EGENERIC;
+    }
+    if( p_enc->fmt_in.video.i_width % 16 != 0 ||
+        p_enc->fmt_in.video.i_height % 16!= 0 )
+    {
+        msg_Warn( p_enc, "invalid size %ix%i",
+                  p_enc->fmt_in.video.i_width,
+                  p_enc->fmt_in.video.i_height );
+        return VLC_EGENERIC;
+    }
+
+    p_enc->pf_encode_video = Encode;
+    p_enc->pf_encode_audio = NULL;
+    p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
+
+    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;
+    p_sys->param.analyse.inter = X264_ANALYSE_I16x16 | X264_ANALYSE_I4x4  |
+                                 X264_ANALYSE_P16x16 |
+                                 X264_ANALYSE_P16x8 | X264_ANALYSE_P8x16 |
+                                 X264_ANALYSE_P8x8 | X264_ANALYSE_SMART_PSUB;
+    p_sys->param.i_idrframe = 1;
+    p_sys->param.b_cabac = 1;
+
+    if( p_enc->fmt_in.video.i_aspect > 0 )
+    {
+        /* TODO */
+        p_sys->param.vui.i_sar_width = 0;
+        p_sys->param.vui.i_sar_height = 0;
+    }
+    if( p_enc->fmt_in.video.i_frame_rate_base > 0 )
+    {
+        p_sys->param.f_fps = (float)p_enc->fmt_in.video.i_frame_rate /
+                             (float)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|X264_CPU_SSE2);
+    }
+    if( p_enc->i_key_int > 0 )
+    {
+        p_sys->param.i_iframe = p_enc->i_key_int;
+    }
+
+    p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');
+    if( p_enc->i_qmin == p_enc->i_qmax )
+    {
+        p_sys->param.i_qp_constant = p_enc->i_qmin;
+    }
+    switch( p_enc->i_hq )
+    {
+        case -1:
+            p_sys->param.analyse.inter = 0;
+            break;
+        case -2:
+            p_sys->param.analyse.inter = X264_ANALYSE_I16x16|X264_ANALYSE_I4x4|X264_ANALYSE_P16x16;
+            break;
+        case -3:
+            p_sys->param.analyse.inter = X264_ANALYSE_I16x16|X264_ANALYSE_I4x4|X264_ANALYSE_P16x16|
+                                         X264_ANALYSE_P16x8|X264_ANALYSE_P8x16|X264_ANALYSE_P8x8|X264_ANALYSE_SMART_PSUB;
+            break;
+        case -4:
+            p_sys->param.analyse.inter = X264_ANALYSE_I16x16|X264_ANALYSE_I4x4|X264_ANALYSE_P16x16|
+                                         X264_ANALYSE_P16x8|X264_ANALYSE_P8x16|X264_ANALYSE_P8x8|
+                                         X264_ANALYSE_P8x4|X264_ANALYSE_P4x8|X264_ANALYSE_P4x4|
+                                         X264_ANALYSE_SMART_PSUB;
+            break;
+    }
+
+    /* Open the encoder */
+    p_sys->h = x264_encoder_open( &p_sys->param );
+
+    /* alloc mem */
+    p_sys->pic      = x264_picture_new( p_sys->h );
+    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;
+    int        i_nal;
+    x264_nal_t *nal;
+    block_t *p_block;
+    int i_out;
+    int i;
+
+    /* copy the picture */
+    for( i = 0; i < 3; i++ )
+    {
+        uint8_t *src = p_pict->p[i].p_pixels;
+        uint8_t *dst = p_sys->pic->plane[i];
+        int j;
+
+        for( j = 0;j < p_pict->p[i].i_lines; j++ )
+        {
+            memcpy( dst, src, __MIN( p_sys->pic->i_stride[i], p_pict->p[i].i_pitch ) );
+
+            src += p_pict->p[i].i_pitch;
+            dst += p_sys->pic->i_stride[i];
+        }
+    }
+
+    x264_encoder_encode( p_sys->h, &nal, &i_nal, p_sys->pic );
+    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 );
+    p_block->i_dts = p_pict->date;
+    p_block->i_pts = p_pict->date;
+    memcpy( p_block->p_buffer, p_sys->p_buffer, i_out );
+
+    /* TODO */
+    /* p_block->i_flags |= BLOCK_FLAG_TYPE_I; */
+
+    return p_block;
+}
+
+/*****************************************************************************
+ * CloseEncoder: ffmpeg 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_picture_delete( p_sys->pic );
+    x264_encoder_close( p_sys->h );
+    free( p_sys->p_buffer );
+    free( p_sys );
+}