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Add a hack to detect when we are writing into a Windows pipe since the fseek

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incorrectly does not fail like it should.
This ensures we will not incorrectly append the file header at the end.
Based on patch by Zhou Zongyi [zhouzongyi at pset.suntec.net]


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29311 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2009-05-16 13:59:53 +00:00
parent 83058ab95b
commit dbe4e49033
1 changed files with 11 additions and 1 deletions
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12
libao2/ao_pcm.c
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@ -34,6 +34,10 @@
#include "mp_msg.h" #include "mp_msg.h"
#include "help_mp.h" #include "help_mp.h"
#ifdef __MINGW32__
// for GetFileType to detect pipes
#include <windows.h>
#endif
static const ao_info_t info = static const ao_info_t info =
{ {
@ -175,7 +179,13 @@ static int init(int rate,int channels,int format,int flags){
static void uninit(int immed){ static void uninit(int immed){
if(ao_pcm_waveheader){ /* Rewrite wave header */ if(ao_pcm_waveheader){ /* Rewrite wave header */
if (fseek(fp, 0, SEEK_SET) != 0) int broken_seek = 0;
#ifdef __MINGW32__
// Windows, in its usual idiocy "emulates" seeks on pipes so it always looks
// like they work. So we have to detect them brute-force.
broken_seek = GetFileType((HANDLE)_get_osfhandle(_fileno(fp))) != FILE_TYPE_DISK;
#endif
if (broken_seek || fseek(fp, 0, SEEK_SET) != 0)
mp_msg(MSGT_AO, MSGL_ERR, "Could not seek to start, WAV size headers not updated!\n"); mp_msg(MSGT_AO, MSGL_ERR, "Could not seek to start, WAV size headers not updated!\n");
else if (data_length > 0x7ffff000) else if (data_length > 0x7ffff000)
mp_msg(MSGT_AO, MSGL_ERR, "File larger than allowed for WAV files, may play truncated!\n"); mp_msg(MSGT_AO, MSGL_ERR, "File larger than allowed for WAV files, may play truncated!\n");