Give all wrappers for external libraries names starting with lib.

Originally committed as revision 9226 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 148 insertions, 0 deletions

diff --git a/libavcodec/libxvid_rc.c b/libavcodec/libxvid_rc.c
new file mode 100644
index 0000000000..f06f5b9605
--- /dev/null
+++ b/libavcodec/libxvid_rc.c
@@ -0,0 +1,148 @@
+/*
+ * xvid Rate control wrapper for lavc video encoders
+ *
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <xvid.h>
+#include <unistd.h>
+#include "avcodec.h"
+#include "libxvid_internal.h"
+//#include "dsputil.h"
+#include "mpegvideo.h"
+
+#undef NDEBUG
+#include <assert.h>
+
+extern unsigned int xvid_debug;
+
+int ff_xvid_rate_control_init(MpegEncContext *s){
+    char *tmp_name;
+    int fd, i;
+    xvid_plg_create_t xvid_plg_create;
+    xvid_plugin_2pass2_t xvid_2pass2;
+
+//xvid_debug=-1;
+
+    fd=av_tempfile("xvidrc.", &tmp_name);
+    if (fd == -1) {
+        av_log(NULL, AV_LOG_ERROR, "Can't create temporary pass2 file.\n");
+        return -1;
+    }
+
+    for(i=0; i<s->rc_context.num_entries; i++){
+        static const char *frame_types = " ipbs";
+        char tmp[256];
+        RateControlEntry *rce;
+
+        rce= &s->rc_context.entry[i];
+
+        snprintf(tmp, sizeof(tmp), "%c %d %d %d %d %d %d\n",
+            frame_types[rce->pict_type], (int)lrintf(rce->qscale / FF_QP2LAMBDA), rce->i_count, s->mb_num - rce->i_count - rce->skip_count,
+            rce->skip_count, (rce->i_tex_bits + rce->p_tex_bits + rce->misc_bits+7)/8, (rce->header_bits+rce->mv_bits+7)/8);
+
+//av_log(NULL, AV_LOG_ERROR, "%s\n", tmp);
+        write(fd, tmp, strlen(tmp));
+    }
+
+    close(fd);
+
+    memset(&xvid_2pass2, 0, sizeof(xvid_2pass2));
+    xvid_2pass2.version= XVID_MAKE_VERSION(1,1,0);
+    xvid_2pass2.filename= tmp_name;
+    xvid_2pass2.bitrate= s->avctx->bit_rate;
+    xvid_2pass2.vbv_size= s->avctx->rc_buffer_size;
+    xvid_2pass2.vbv_maxrate= s->avctx->rc_max_rate;
+    xvid_2pass2.vbv_initial= s->avctx->rc_initial_buffer_occupancy;
+
+    memset(&xvid_plg_create, 0, sizeof(xvid_plg_create));
+    xvid_plg_create.version= XVID_MAKE_VERSION(1,1,0);
+    xvid_plg_create.fbase= s->avctx->time_base.den;
+    xvid_plg_create.fincr= s->avctx->time_base.num;
+    xvid_plg_create.param= &xvid_2pass2;
+
+    if(xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, &s->rc_context.non_lavc_opaque)<0){
+        av_log(NULL, AV_LOG_ERROR, "xvid_plugin_2pass2 failed\n");
+        return -1;
+    }
+    return 0;
+}
+
+float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){
+    xvid_plg_data_t xvid_plg_data;
+
+    memset(&xvid_plg_data, 0, sizeof(xvid_plg_data));
+    xvid_plg_data.version= XVID_MAKE_VERSION(1,1,0);
+    xvid_plg_data.width = s->width;
+    xvid_plg_data.height= s->height;
+    xvid_plg_data.mb_width = s->mb_width;
+    xvid_plg_data.mb_height= s->mb_height;
+    xvid_plg_data.fbase= s->avctx->time_base.den;
+    xvid_plg_data.fincr= s->avctx->time_base.num;
+    xvid_plg_data.min_quant[0]= s->avctx->qmin;
+    xvid_plg_data.min_quant[1]= s->avctx->qmin;
+    xvid_plg_data.min_quant[2]= s->avctx->qmin; //FIXME i/b factor & offset
+    xvid_plg_data.max_quant[0]= s->avctx->qmax;
+    xvid_plg_data.max_quant[1]= s->avctx->qmax;
+    xvid_plg_data.max_quant[2]= s->avctx->qmax; //FIXME i/b factor & offset
+    xvid_plg_data.bquant_offset = 0; //  100 * s->avctx->b_quant_offset;
+    xvid_plg_data.bquant_ratio = 100; // * s->avctx->b_quant_factor;
+
+#if 0
+    xvid_plg_data.stats.hlength= X
+#endif
+
+    if(!s->rc_context.dry_run_qscale){
+        if(s->picture_number){
+            xvid_plg_data.length=
+            xvid_plg_data.stats.length= (s->frame_bits + 7)/8;
+            xvid_plg_data.frame_num= s->rc_context.last_picture_number;
+            xvid_plg_data.quant= s->qscale;
+
+            xvid_plg_data.type= s->last_pict_type;
+            if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_AFTER, &xvid_plg_data, NULL)){
+                av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_AFTER, ...) FAILED\n");
+                return -1;
+            }
+        }
+        s->rc_context.last_picture_number=
+        xvid_plg_data.frame_num= s->picture_number;
+        xvid_plg_data.quant= 0;
+        if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_BEFORE, &xvid_plg_data, NULL)){
+            av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_BEFORE, ...) FAILED\n");
+            return -1;
+        }
+        s->rc_context.dry_run_qscale= xvid_plg_data.quant;
+    }
+    xvid_plg_data.quant= s->rc_context.dry_run_qscale;
+    if(!dry_run)
+        s->rc_context.dry_run_qscale= 0;
+
+    if(s->pict_type == B_TYPE) //FIXME this is not exactly identical to xvid
+        return xvid_plg_data.quant * FF_QP2LAMBDA * s->avctx->b_quant_factor + s->avctx->b_quant_offset;
+    else
+        return xvid_plg_data.quant * FF_QP2LAMBDA;
+}
+
+void ff_xvid_rate_control_uninit(MpegEncContext *s){
+    xvid_plg_destroy_t xvid_plg_destroy;
+
+    xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_DESTROY, &xvid_plg_destroy, NULL);
+}
+