From 63b5875bb5741b85042057b1d86f8d528171668b Mon Sep 17 00:00:00 2001
From: albeu <albeu@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 21 Jul 2002 14:36:33 +0000
Subject: [PATCH] Fix vbr muxing and win32 codec crash on init

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6764 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpdemux/demux_audio.c | 16 +++++++++++++---
 libmpdemux/mp3_hdr.c     |  4 +++-
 libmpdemux/mp3_hdr.h     |  4 +++-
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/libmpdemux/demux_audio.c b/libmpdemux/demux_audio.c
index 442df9f915..64dc64ffba 100644
--- a/libmpdemux/demux_audio.c
+++ b/libmpdemux/demux_audio.c
@@ -8,6 +8,7 @@
 #include "demuxer.h"
 #include "stheader.h"
 #include "genres.h"
+#include "mp3_hdr.h"
 
 #include <string.h>
 #ifdef MP_DEBUG
@@ -25,7 +26,6 @@ typedef struct da_priv {
   float last_pts;
 } da_priv_t;
 
-extern int mp_decode_mp3_header(unsigned char* hbuf);
 extern void free_sh_audio(sh_audio_t* sh);
 extern void resync_audio_stream(sh_audio_t *sh_audio);
 
@@ -35,7 +35,7 @@ int demux_audio_open(demuxer_t* demuxer) {
   stream_t *s;
   sh_audio_t* sh_audio;
   uint8_t hdr[HDR_SIZE];
-  int st_pos = 0,frmt = 0, n = 0, pos = 0, step;
+  int st_pos = 0,frmt = 0, n = 0, pos = 0, step, mp3_freq,mp3_chans;
   da_priv_t* priv;
 #ifdef MP_DEBUG
   assert(demuxer != NULL);
@@ -68,7 +68,7 @@ int demux_audio_open(demuxer_t* demuxer) {
     } else if( hdr[0] == 'f' && hdr[1] == 'm' && hdr[2] == 't' && hdr[3] == ' ' ) {
       frmt = WAV;
       break;      
-    } else if((n = mp_decode_mp3_header(hdr)) > 0) {
+    } else if((n = mp_get_mp3_header(hdr,&mp3_chans,&mp3_freq)) > 0) {
       frmt = MP3;
       break;
     }
@@ -87,6 +87,16 @@ int demux_audio_open(demuxer_t* demuxer) {
   case MP3:
     sh_audio->format = 0x55;
     demuxer->movi_start = st_pos-HDR_SIZE+n;
+    sh_audio->audio.dwSampleSize= 0;
+    sh_audio->audio.dwScale = 1152;
+    sh_audio->audio.dwRate = mp3_freq;
+    sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
+    sh_audio->wf->wFormatTag = sh_audio->format;
+    sh_audio->wf->nChannels = mp3_chans;
+    sh_audio->wf->nSamplesPerSec = mp3_freq;
+    sh_audio->wf->nBlockAlign = 1;
+    sh_audio->wf->wBitsPerSample = 16;
+    sh_audio->wf->cbSize = 0;    
     for(n = 0; n < 5 ; n++) {
       pos = mp_decode_mp3_header(hdr);
       if(pos < 0)
diff --git a/libmpdemux/mp3_hdr.c b/libmpdemux/mp3_hdr.c
index 78ed2fc0a1..fd0b1537f6 100644
--- a/libmpdemux/mp3_hdr.c
+++ b/libmpdemux/mp3_hdr.c
@@ -31,7 +31,7 @@ int mp_mp3_get_lsf(unsigned char* hbuf){
 /*
  * return frame size or -1 (bad frame)
  */
-int mp_decode_mp3_header(unsigned char* hbuf){
+int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* srate){
     int stereo,ssize,crc,lsf,mpeg25,framesize,padding,bitrate_index,sampling_frequency;
     unsigned long newhead = 
       hbuf[0] << 24 |
@@ -101,6 +101,8 @@ int mp_decode_mp3_header(unsigned char* hbuf){
     framesize += padding;
 
 //    if(framesize<=0 || framesize>MAXFRAMESIZE) return FALSE;
+    if(srate) *srate = freqs[sampling_frequency];
+    if(chans) *chans = stereo;
 
     return framesize;
 }
diff --git a/libmpdemux/mp3_hdr.h b/libmpdemux/mp3_hdr.h
index 9635760a95..2dfa484e10 100644
--- a/libmpdemux/mp3_hdr.h
+++ b/libmpdemux/mp3_hdr.h
@@ -1,5 +1,7 @@
 
-int mp_decode_mp3_header(unsigned char* hbuf);
+int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* freq);
+
+#define mp_decode_mp3_header(hbuf)  mp_get_mp3_header(hbuf,NULL,NULL)
 
 static inline int mp_check_mp3_header(unsigned int head){
     if( (head & 0x0000e0ff) != 0x0000e0ff ||