FFMPEG-render support.

2 files changed, 739 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_writeffmpeg.h b/source/blender/blenkernel/BKE_writeffmpeg.h
new file mode 100644
index 00000000000..288955f2cba
--- /dev/null
+++ b/source/blender/blenkernel/BKE_writeffmpeg.h
@@ -0,0 +1,72 @@
+/**
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+
+#ifndef BKE_WRITEFFMPEG_H
+#define BKE_WRITEFFMPEG_H
+
+#ifdef WITH_FFMPEG
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FFMPEG_MPEG1 	0
+#define FFMPEG_MPEG2 	1
+#define FFMPEG_MPEG4 	2
+#define FFMPEG_AVI	3
+#define FFMPEG_MOV	4
+#define FFMPEG_DV	5
+
+#define FFMPEG_CODEC_MPEG1 0
+#define FFMPEG_CODEC_MPEG2 1
+#define FFMPEG_CODEC_MPEG4 2
+#define FFMPEG_CODEC_HUFFYUV 3
+#define FFMPEG_CODEC_DV 4
+
+#define FFMPEG_PRESET_NONE 0
+#define FFMPEG_PRESET_DVD  1
+#define FFMPEG_PRESET_SVCD 2
+#define FFMPEG_PRESET_VCD  3
+#define FFMPEG_PRESET_DV   4
+
+struct RenderData;	
+
+extern void start_ffmpeg(struct RenderData *rd, int rectx, int recty);
+extern void end_ffmpeg(void);
+extern void append_ffmpeg(int frame, int *pixels, int rectx, int recty);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif
+
diff --git a/source/blender/blenkernel/intern/writeffmpeg.c b/source/blender/blenkernel/intern/writeffmpeg.c
new file mode 100644
index 00000000000..317f9fda7ca
--- /dev/null
+++ b/source/blender/blenkernel/intern/writeffmpeg.c
@@ -0,0 +1,667 @@
+/*
+ * ffmpeg-write support
+ *
+ * Partial Copyright (c) 2006 Peter Schlaile
+ *
+ * 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.
+ *
+ */
+
+
+#ifdef WITH_FFMPEG
+#include <string.h>
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <ffmpeg/avformat.h>
+#include <ffmpeg/avcodec.h>
+
+#if LIBAVFORMAT_VERSION_INT < (49 << 16)
+#define FFMPEG_OLD_FRAME_RATE 1
+#else
+#define FFMPEG_CODEC_IS_POINTER 1
+#endif
+
+#include "BKE_writeffmpeg.h"
+
+#include "MEM_guardedalloc.h"
+#include "BLI_blenlib.h"
+
+#include "BKE_bad_level_calls.h"
+#include "BKE_global.h"
+
+#include "IMB_imbuf_types.h"
+#include "IMB_imbuf.h"
+
+#include "BSE_seqaudio.h"
+
+#include "DNA_scene_types.h"
+#include "blendef.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+extern void makewavstring (char *string);
+extern void do_init_ffmpeg();
+
+static int ffmpeg_type = 0;
+static int ffmpeg_codec = CODEC_ID_MPEG4;
+static int ffmpeg_audio_codec = CODEC_ID_MP2;
+static int ffmpeg_video_bitrate = 1150;
+static int ffmpeg_audio_bitrate = 128;
+static int ffmpeg_gop_size = 12;
+static int ffmpeg_multiplex_audio = 1;
+static int ffmpeg_autosplit = 0;
+static int ffmpeg_autosplit_count = 0;
+
+static AVFormatContext* outfile;
+static AVStream* video_stream;
+static AVStream* audio_stream;
+static AVFrame* current_frame;
+
+static uint8_t* video_buffer = 0;
+static int video_buffersize = 0;
+
+static uint8_t* audio_input_buffer = 0;
+static int audio_input_frame_size = 0;
+static uint8_t* audio_output_buffer = 0;
+static int audio_outbuf_size = 0;
+
+static RenderData *ffmpeg_renderdata;
+static int ffmpeg_rectx;
+static int ffmpeg_recty;
+
+#define FFMPEG_AUTOSPLIT_SIZE 2000000000
+
+/* Delete a picture buffer */
+
+void delete_picture(AVFrame* f)
+{
+	if (f) {
+		if (f->data[0]) MEM_freeN(f->data[0]);
+		av_free(f);
+	}
+}
+
+int write_audio_frame(void) {
+	AVCodecContext* c = NULL;
+	AVPacket pkt;
+
+	c = audio_stream->codec;
+
+	audiostream_fill(audio_input_buffer, 
+			 audio_input_frame_size 
+			 * sizeof(short) * c->channels);
+
+	av_init_packet(&pkt);
+
+	pkt.size = avcodec_encode_audio(c, audio_output_buffer,
+					audio_outbuf_size, 
+					(short*) audio_input_buffer);
+	pkt.data = audio_output_buffer;
+	pkt.pts = av_rescale_q(c->coded_frame->pts, 
+			       c->time_base, audio_stream->time_base);
+	pkt.stream_index = audio_stream->index;
+	pkt.flags |= PKT_FLAG_KEY;
+	if (av_write_frame(outfile, &pkt) != 0) {
+		error("Error writing audio packet");
+		return -1;
+	}
+	return 0;
+}
+
+/* Allocate a temporary frame */
+
+AVFrame* alloc_picture(int pix_fmt, int width, int height) 
+{
+	AVFrame* f;
+	uint8_t* buf;
+	int size;
+	
+	/* allocate space for the struct */
+	f = avcodec_alloc_frame();
+	if (!f) return NULL;
+	size = avpicture_get_size(pix_fmt, width, height);
+	/* allocate the actual picture buffer */
+	buf = MEM_mallocN(size, "AVFrame buffer");
+	if (!buf) {
+		free(f);
+		return NULL;
+	}
+	avpicture_fill((AVPicture*)f, buf, pix_fmt, width, height);
+	return f;
+}
+
+/* Get an output format based on the menu selection */
+AVOutputFormat* ffmpeg_get_format(int format) 
+{
+	AVOutputFormat* f;
+	switch(format) {
+		case FFMPEG_DV:
+			f = guess_format("dv", NULL, NULL);
+			break;
+		case FFMPEG_MPEG1:
+		case FFMPEG_MPEG2:
+			f = guess_format("mpeg", NULL, NULL);
+			break;
+		case FFMPEG_MPEG4:
+			f = guess_format("mp4", NULL, NULL);
+			break;
+		case FFMPEG_AVI:
+			f = guess_format("avi", NULL, NULL);
+			break;
+		case FFMPEG_MOV:
+			f = guess_format("mov", NULL, NULL);
+			break;
+		default:
+			f = NULL;
+	}
+	return f;
+}
+
+/* Get the correct file extension for the requested format */
+void file_extension(int format, char* string) 
+{
+	int i;
+	AVOutputFormat* f;
+	const char* ext;
+	f= ffmpeg_get_format(format);
+	ext = f->extensions;
+	for (i = 0; ext[i] != ',' && i < strlen(ext); i++);
+	snprintf(string, i+2, ".%s", ext);
+}
+
+/* Get the output filename-- similar to the other output formats */
+void makeffmpegstring(char* string) {
+	
+	char txt[FILE_MAXDIR+FILE_MAXFILE];
+	char fe[FILE_MAXDIR+FILE_MAXFILE];
+	char autosplit[20];
+
+	file_extension(ffmpeg_type, fe);
+
+	if (!string) return;
+
+	strcpy(string, G.scene->r.pic);
+	BLI_convertstringcode(string, G.sce, G.scene->r.cfra);
+
+	BLI_make_existing_file(string);
+
+	autosplit[0] = 0;
+
+	if (ffmpeg_autosplit) {
+		sprintf(autosplit, "_%03d", ffmpeg_autosplit_count);
+	}
+
+	if (BLI_strcasecmp(string + strlen(string) - strlen(fe), fe)) {
+		strcat(string, autosplit);
+		sprintf(txt, "%04d_%04d%s", (G.scene->r.sfra), 
+			(G.scene->r.efra), fe);
+		strcat(string, txt);
+	} else {
+		*(string + strlen(string) - strlen(fe)) = 0;
+		strcat(string, autosplit);
+		strcat(string, fe);
+	}
+}
+
+/* Write a frame to the output file */
+static void write_video_frame(AVFrame* frame) {
+	int outsize = 0;
+	int ret;
+#ifdef FFMPEG_CODEC_IS_POINTER
+	AVCodecContext* c = video_stream->codec;
+#else
+	AVCodecContext* c = &video_stream->codec;
+#endif
+	frame->pts = G.scene->r.cfra - G.scene->r.sfra;
+
+	outsize = avcodec_encode_video(c, video_buffer, video_buffersize, 
+				       frame);
+	if (outsize != 0) {
+		AVPacket packet;
+		av_init_packet(&packet);
+
+		packet.pts = av_rescale_q(c->coded_frame->pts,
+					  c->time_base,
+					  video_stream->time_base);
+		if (c->coded_frame->key_frame)
+			packet.flags |= PKT_FLAG_KEY;
+		packet.stream_index = video_stream->index;
+		packet.data = video_buffer;
+		packet.size = outsize;
+		ret = av_write_frame(outfile, &packet);
+	} else ret = 0;
+	if (ret != 0) {
+		G.afbreek = 1;
+		error("Error writing frame");
+	}
+}
+
+/* read and encode a frame of audio from the buffer */
+static AVFrame* generate_video_frame(uint8_t* pixels) 
+{
+	uint8_t* rendered_frame;
+
+#ifdef FFMPEG_CODEC_IS_POINTER
+	AVCodecContext* c = video_stream->codec;
+#else
+	AVCodecContext* c = &video_stream->codec;
+#endif
+	int width = c->width;
+	int height = c->height;
+	AVFrame* rgb_frame;
+
+	if (c->pix_fmt != PIX_FMT_RGBA32) {
+		rgb_frame = alloc_picture(PIX_FMT_RGBA32, width, height);
+		if (!rgb_frame) {
+			G.afbreek=1;
+			error("Couldn't allocate temporary frame");
+			return NULL;
+		}
+	} else {
+		rgb_frame = current_frame;
+	}
+
+	rendered_frame = pixels;
+
+	/* Do RGBA-conversion and flipping in one step depending
+	   on CPU-Endianess */
+
+	if (G.order == L_ENDIAN) {
+		int y;
+		for (y = 0; y < height; y++) {
+			uint8_t* target = rgb_frame->data[0]
+				+ width * 4 * (height - y - 1);
+			uint8_t* src = rendered_frame + width * 4 * y;
+			uint8_t* end = src + width * 4;
+			while (src != end) {
+				target[3] = src[3];
+				target[2] = src[0];
+				target[1] = src[1];
+				target[0] = src[2];
+
+				target += 4;
+				src += 4;
+			}
+		}
+	} else {
+		int y;
+		for (y = 0; y < height; y++) {
+			uint8_t* target = rgb_frame->data[0]
+				+ width * 4 * (height - y - 1);
+			uint8_t* src = rendered_frame + width * 4 * y;
+			uint8_t* end = src + width * 4;
+			while (src != end) {
+				target[3] = src[2];
+				target[2] = src[1];
+				target[1] = src[0];
+				target[0] = src[3];
+
+				target += 4;
+				src += 4;
+			}
+		}
+	}
+
+	if (c->pix_fmt != PIX_FMT_RGBA32) {
+		img_convert((AVPicture*)current_frame, c->pix_fmt, 
+			(AVPicture*)rgb_frame, PIX_FMT_RGBA32, width, height);
+		delete_picture(rgb_frame);
+	}
+	return current_frame;
+}
+
+/* prepare a video stream for the output file */
+
+static AVStream* alloc_video_stream(int codec_id, AVFormatContext* of,
+				    int rectx, int recty) 
+{
+	AVStream* st;
+	AVCodecContext* c;
+	AVCodec* codec;
+	st = av_new_stream(of, 0);
+	if (!st) return NULL;
+
+	/* Set up the codec context */
+	
+#ifdef FFMPEG_CODEC_IS_POINTER
+	c = st->codec;
+#else
+	c = &st->codec;
+#endif
+	c->codec_id = codec_id;
+	c->codec_type = CODEC_TYPE_VIDEO;
+
+
+	/* Get some values from the current render settings */
+	
+	c->width = rectx;
+	c->height = recty;
+
+	/* FIXME: Really bad hack (tm) for NTSC support */
+	if (ffmpeg_type == FFMPEG_DV && G.scene->r.frs_sec != 25) {
+		c->time_base = av_d2q(29.97, 0);
+	} else {
+		c->time_base.den = G.scene->r.frs_sec;
+		c->time_base.num = 1;
+	}
+	
+	c->gop_size = ffmpeg_gop_size;
+	c->bit_rate = ffmpeg_video_bitrate*1000;
+	c->rc_max_rate = G.scene->r.ffcodecdata.rc_max_rate*1000;
+	c->rc_min_rate = G.scene->r.ffcodecdata.rc_min_rate*1000;
+	c->rc_buffer_size = G.scene->r.ffcodecdata.rc_buffer_size * 1024;
+	c->rc_initial_buffer_occupancy 
+		= G.scene->r.ffcodecdata.rc_buffer_size*3/4;
+	c->rc_buffer_aggressivity = 1.0;
+	c->me_method = ME_EPZS;
+	
+	codec = avcodec_find_encoder(c->codec_id);
+	if (!codec) return NULL;
+	
+	/* Be sure to use the correct pixel format(e.g. RGB, YUV) */
+	
+	if (codec->pix_fmts) {
+		c->pix_fmt = codec->pix_fmts[0];
+	} else {
+		/* makes HuffYUV happy ... */
+		c->pix_fmt = PIX_FMT_YUV422P;
+	}
+	
+	if (!strcmp(of->oformat->name, "mp4") || 
+	    !strcmp(of->oformat->name, "mov") ||
+	    !strcmp(of->oformat->name, "3gp")) {
+		fprintf(stderr, "Using global header\n");
+		c->flags |= CODEC_FLAG_GLOBAL_HEADER;
+	}
+	
+	/* Determine whether we are encoding interlaced material or not */
+	if (G.scene->r.mode & (1 << 6)) {
+		fprintf(stderr, "Encoding interlaced video\n");
+		c->flags |= CODEC_FLAG_INTERLACED_DCT;
+		c->flags |= CODEC_FLAG_INTERLACED_ME;
+	}	
+	c->sample_aspect_ratio.num = G.scene->r.xasp;
+	c->sample_aspect_ratio.den = G.scene->r.yasp;
+	
+	if (avcodec_open(c, codec) < 0) {
+		error("Couldn't initialize codec");
+		return NULL;
+	}
+
+	video_buffersize = 2000000;
+	video_buffer = (uint8_t*)MEM_mallocN(video_buffersize, 
+					     "FFMPEG video buffer");
+	
+	current_frame = alloc_picture(c->pix_fmt, c->width, c->height);
+	return st;
+}
+
+/* Prepare an audio stream for the output file */
+
+AVStream* alloc_audio_stream(int codec_id, AVFormatContext* of) 
+{
+	AVStream* st;
+	AVCodecContext* c;
+	AVCodec* codec;
+
+	st = av_new_stream(of, 1);
+	if (!st) return NULL;
+
+	c = st->codec;
+	c->codec_id = codec_id;
+	c->codec_type = CODEC_TYPE_AUDIO;
+
+	c->sample_rate = G.scene->audio.mixrate;
+	c->bit_rate = ffmpeg_audio_bitrate*1000;
+	c->channels = 2;
+	codec = avcodec_find_encoder(c->codec_id);
+	if (!codec) {
+		error("Couldn't find a valid audio codec");
+		return NULL;
+	}
+	if (avcodec_open(c, codec) < 0) {
+		error("Couldn't initialize audio codec");
+		return NULL;
+	}
+
+	/* FIXME: Should be user configurable */
+	audio_outbuf_size = 10000;
+	audio_output_buffer = (uint8_t*)MEM_mallocN(
+		audio_outbuf_size, "FFMPEG audio encoder input buffer");
+
+       /* ugly hack for PCM codecs */
+
+	if (c->frame_size <= 1) {
+		audio_input_frame_size = audio_outbuf_size / c->channels;
+		switch(st->codec->codec_id) {
+		case CODEC_ID_PCM_S16LE:
+		case CODEC_ID_PCM_S16BE:
+		case CODEC_ID_PCM_U16LE:
+		case CODEC_ID_PCM_U16BE:
+			audio_input_frame_size >>= 1;
+			break;
+		default:
+			break;
+		}
+	} else {
+		audio_input_frame_size = c->frame_size;
+	}
+
+	audio_input_buffer = (uint8_t*)MEM_mallocN(
+		audio_input_frame_size * sizeof(short) * c->channels, 
+		"FFMPEG audio encoder output buffer");
+
+	return st;
+}
+/* essential functions -- start, append, end */
+
+void start_ffmpeg_impl(RenderData *rd, int rectx, int recty)
+{
+	/* Handle to the output file */
+	AVFormatContext* of;
+	AVOutputFormat* fmt;
+
+	ffmpeg_type = rd->ffcodecdata.type;
+	ffmpeg_codec = rd->ffcodecdata.codec;
+	ffmpeg_audio_codec = rd->ffcodecdata.audio_codec;
+	ffmpeg_video_bitrate = rd->ffcodecdata.video_bitrate;
+	ffmpeg_audio_bitrate = rd->ffcodecdata.audio_bitrate;
+	ffmpeg_gop_size = rd->ffcodecdata.gop_size;
+	ffmpeg_multiplex_audio = rd->ffcodecdata.flags
+		& FFMPEG_MULTIPLEX_AUDIO;
+	ffmpeg_autosplit = rd->ffcodecdata.flags
+		& FFMPEG_AUTOSPLIT_OUTPUT;
+	
+	do_init_ffmpeg();
+
+	/* Determine the correct filename */
+	char name[256];
+	makeffmpegstring(name);
+	fprintf(stderr, "Starting output to %s(ffmpeg)...\n", name);
+	
+	fmt = guess_format(NULL, name, NULL);
+	if (!fmt) {
+		G.afbreek = 1; /* Abort render */
+		error("No vaild formats found");
+		return;
+	}
+
+	of = av_alloc_format_context();
+	if (!of) {
+		G.afbreek = 1;
+		error("Error opening output file");
+		return;
+	}
+	
+	of->oformat = fmt;
+	of->packet_size= G.scene->r.ffcodecdata.mux_packet_size;
+	if (ffmpeg_multiplex_audio) {
+		of->mux_rate = G.scene->r.ffcodecdata.mux_rate;
+	} else {
+		of->mux_rate = 0;
+	}
+
+	of->preload = (int)(0.5*AV_TIME_BASE);
+	of->max_delay = (int)(0.7*AV_TIME_BASE);
+	
+	snprintf(of->filename, sizeof(of->filename), "%s", name);
+	/* set the codec to the user's selection */
+	switch(ffmpeg_type) {
+		case FFMPEG_AVI:
+		case FFMPEG_MOV:
+			fmt->video_codec = ffmpeg_codec;
+			break;
+		case FFMPEG_DV:
+			fmt->video_codec = CODEC_ID_DVVIDEO;
+			break;
+		case FFMPEG_MPEG1:
+			fmt->video_codec = CODEC_ID_MPEG1VIDEO;
+			break;
+		case FFMPEG_MPEG2:
+			fmt->video_codec = CODEC_ID_MPEG2VIDEO;
+			break;
+		case FFMPEG_MPEG4:
+		default:
+			fmt->video_codec = CODEC_ID_MPEG4;
+			break;
+	}
+	if (ffmpeg_type == FFMPEG_DV) {
+		fmt->audio_codec = CODEC_ID_PCM_S16LE;
+	} else {
+		fmt->audio_codec = ffmpeg_audio_codec;
+	}
+	
+	video_stream = alloc_video_stream(fmt->video_codec, of, rectx, recty);
+	if (!video_stream) {
+		G.afbreek = 1;
+		error("Error initializing video stream");
+		return;
+	}
+	
+	if (ffmpeg_multiplex_audio) {
+		audio_stream = alloc_audio_stream(fmt->audio_codec, of);
+		if (!audio_stream) {
+			G.afbreek = 1;
+			error("Error initializing audio stream");
+			return;
+		}
+		audiostream_play(SFRA, 0, 1);
+	}
+	if (av_set_parameters(of, NULL) < 0) {
+		G.afbreek = 1;
+		error("Error setting output parameters");
+		return;
+	}
+	if (!(fmt->flags & AVFMT_NOFILE)) {
+		if (url_fopen(&of->pb, name, URL_WRONLY) < 0) {
+			G.afbreek = 1;
+			error("Could not open file for writing");
+			return;
+		}
+	}
+
+	av_write_header(of);
+	outfile = of;
+	dump_format(of, 0, name, 1);
+}
+
+void start_ffmpeg(RenderData *rd, int rectx, int recty)
+{
+	ffmpeg_autosplit_count = 0;
+
+	ffmpeg_renderdata = rd;
+
+	start_ffmpeg_impl(rd, rectx, recty);
+}
+
+void end_ffmpeg(void);
+
+void append_ffmpeg(int frame, int *pixels, int rectx, int recty) 
+{
+	fprintf(stderr, "Writing frame %i\n", frame);
+	while (ffmpeg_multiplex_audio && 
+	       (((double)audio_stream->pts.val 
+		 * audio_stream->time_base.num / audio_stream->time_base.den)
+		< 
+		((double)video_stream->pts.val 
+		 * video_stream->time_base.num / video_stream->time_base.den)
+		       )) {
+		write_audio_frame();
+	}
+	write_video_frame(generate_video_frame(pixels));
+
+	if (ffmpeg_autosplit) {
+		if (url_fsize(&outfile->pb) > FFMPEG_AUTOSPLIT_SIZE) {
+			end_ffmpeg();
+			ffmpeg_autosplit_count++;
+			start_ffmpeg_impl(rectx, recty,
+					  ffmpeg_renderdata);
+		}
+	}
+}
+
+
+void end_ffmpeg(void)
+{
+	int i;
+	
+	fprintf(stderr, "Closing ffmpeg...\n");
+
+	if (outfile) {
+		av_write_trailer(outfile);
+	}
+	
+	/* Close the video codec */
+
+	if (video_stream && video_stream->codec) {
+		avcodec_close(video_stream->codec);
+	}
+
+	
+	/* Close the output file */
+	if (outfile) {
+		for (i = 0; i < outfile->nb_streams; i++) {
+			if (&outfile->streams[i]) {
+				av_freep(&outfile->streams[i]);
+			}
+		}
+	}
+	/* free the temp buffer */
+	if (current_frame) {
+		delete_picture(current_frame);
+	}
+	if (outfile && outfile->oformat) {
+		if (!(outfile->oformat->flags & AVFMT_NOFILE)) {
+			url_fclose(&outfile->pb);
+		}
+	}
+	if (outfile) {
+		av_free(outfile);
+		outfile = 0;
+	}
+	if (video_buffer) {
+		MEM_freeN(video_buffer);
+		video_buffer = 0;
+	}
+	if (audio_output_buffer) {
+		MEM_freeN(audio_output_buffer);
+		audio_output_buffer = 0;
+	}
+	if (audio_input_buffer) {
+		MEM_freeN(audio_input_buffer);
+		audio_input_buffer = 0;
+	}
+}
+#endif
+