VirtualBox

Changeset 32339 in vbox


Ignore:
Timestamp:
Sep 9, 2010 11:18:59 AM (14 years ago)
Author:
vboxsync
Message:

Undid accidental commit of debug code.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/src/VBox/Devices/Audio/audiosniffer.c

    r32337 r32339  
    2626#include <iprt/string.h>
    2727#include <iprt/alloc.h>
    28 #include <iprt/file.h>
    2928
    3029#include "Builtins.h"
     
    5554    PPDMIAUDIOSNIFFERCONNECTOR   pDrv;
    5655
    57     void                         *pCapFileCtx;
    5856} AUDIOSNIFFERSTATE;
    5957
    6058static AUDIOSNIFFERSTATE *g_pData = NULL;
    61 
    62 typedef struct {
    63     RTFILE      capFile;
    64     int         curSampPerSec;
    65     int         curBitsPerSmp;
    66     int         curChannels;
    67     uint64_t    lastChunk;
    68 } AUDCAPSTATE;
    69 
    70 typedef struct {
    71     uint16_t    wFormatTag;
    72     uint16_t    nChannels;
    73     uint32_t    nSamplesPerSec;
    74     uint32_t    nAvgBytesPerSec;
    75     uint16_t    nBlockAlign;
    76     uint16_t    wBitsPerSample;
    77 } WAVEFMTHDR;
    78 
    79 static update_prev_chunk(AUDCAPSTATE *pState)
    80 {
    81     size_t          written;
    82     uint64_t        cur_ofs;
    83     uint64_t        new_ofs;
    84     uint32_t        chunk_len;
    85 
    86     Assert(pState);
    87     /* Write the size of the previous data chunk, if there was one. */
    88     if (pState->lastChunk)
    89     {
    90         cur_ofs = RTFileTell(pState->capFile);
    91         chunk_len = cur_ofs - pState->lastChunk - sizeof(chunk_len);
    92         RTFileWriteAt(pState->capFile, pState->lastChunk, &chunk_len, sizeof(chunk_len), &written);
    93         RTFileSeek(pState->capFile, 0, RTFILE_SEEK_END, &new_ofs);
    94     }
    95 }
    96 
    97 static int create_capture_file(AUDCAPSTATE *pState, const char *fname)
    98 {
    99     int             rc;
    100     size_t          written;
    101 
    102     Assert(pState);
    103     memset(pState, 0, sizeof(*pState));
    104     /* Create the file and write the RIFF header. */
    105     rc = RTFileOpen(&pState->capFile, fname,
    106                     RTFILE_O_WRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_WRITE);
    107     rc = RTFileWrite(pState->capFile, "RIFFxxxx", 8, &written);
    108     return rc;
    109 }
    110 
    111 static int close_capture_file(AUDCAPSTATE *pState)
    112 {
    113     int             rc;
    114     size_t          written;
    115     uint64_t        cur_ofs;
    116     uint32_t        riff_len;
    117 
    118     Assert(pState);
    119     update_prev_chunk(pState);
    120 
    121     /* Update the global RIFF header. */
    122     cur_ofs = RTFileTell(pState->capFile);
    123     riff_len = cur_ofs - 8;
    124     RTFileWriteAt(pState->capFile, 4, &riff_len, sizeof(riff_len), &written);
    125    
    126     rc = RTFileClose(pState->capFile);
    127     return rc;
    128 }
    129 
    130 static inline int16_t clip_natural_int16_t(int64_t v)
    131 {
    132     if (v >= 0x7f000000) {
    133         return 0x7fff;
    134     }
    135     else if (v < -2147483648LL) {
    136         return (-32767-1);
    137     }
    138     return  ((int16_t) (v >> (32 - 16)));
    139 }
    140 
    141 static int update_capture_file(AUDCAPSTATE *pState, HWVoiceOut *hw, st_sample_t *pSamples, unsigned cSamples)
    142 {
    143     size_t          written;
    144     uint16_t        buff[16384];
    145     unsigned        i;
    146     uint16_t        *dst_smp;
    147 
    148     Assert(pState);
    149     /* If the audio format changed, start a new WAVE chunk. */
    150     if (   hw->info.freq != pState->curSampPerSec
    151         || hw->info.bits != pState->curBitsPerSmp
    152         || hw->info.nchannels != pState->curChannels)
    153     {
    154         WAVEFMTHDR      wave_hdr;
    155         uint32_t        chunk_len;
    156 
    157         update_prev_chunk(pState);
    158 
    159         /* Build a new format ('fmt ') chunk. */
    160         wave_hdr.wFormatTag      = 1;    /* Linear PCM */
    161         wave_hdr.nChannels       = hw->info.nchannels;
    162         wave_hdr.nSamplesPerSec  = hw->info.freq;
    163         wave_hdr.nAvgBytesPerSec = hw->info.bytes_per_second;
    164         wave_hdr.nBlockAlign     = 4;
    165         wave_hdr.wBitsPerSample  = hw->info.bits;
    166 
    167         pState->curSampPerSec = hw->info.freq;
    168         pState->curBitsPerSmp = hw->info.bits;
    169         pState->curChannels   = hw->info.nchannels;
    170 
    171         /* Write the header to file. */
    172         RTFileWrite(pState->capFile, "WAVEfmt ", 8, &written);
    173         chunk_len = sizeof(wave_hdr);
    174         RTFileWrite(pState->capFile, &chunk_len, sizeof(chunk_len), &written);
    175         RTFileWrite(pState->capFile, &wave_hdr, sizeof(wave_hdr), &written);
    176         /* Write data chunk marker with dummy length. */
    177         RTFileWrite(pState->capFile, "dataxxxx", 8, &written);
    178         pState->lastChunk = RTFileTell(pState->capFile) - 4;
    179     }
    180 
    181     /* Convert the samples from internal format. */
    182     //@todo: use mixer engine helpers instead?
    183     for (i = 0, dst_smp = buff; i < cSamples; ++i)
    184     {
    185         *dst_smp++ = clip_natural_int16_t(pSamples->l);
    186         *dst_smp++ = clip_natural_int16_t(pSamples->r);
    187         ++pSamples;
    188     }
    189 
    190 //    LogRel(("Audio: captured %d samples\n", cSamples));
    191     /* Write the audio data. */
    192     RTFileWrite(pState->capFile, buff, cSamples * (hw->info.bits / 8) * hw->info.nchannels, &written);
    193     return VINF_SUCCESS;
    194 }
    19559
    19660/*
     
    21882    bool fUnsigned;
    21983
    220     if (g_pData)
    221         update_capture_file(g_pData->pCapFileCtx, hw, pvSamples, cSamples);
    222 
    22384    if (!g_pData || !g_pData->pDrv || !g_pData->fEnabled)
    22485    {
     
    276137static DECLCALLBACK(int) audioSnifferR3Destruct(PPDMDEVINS pDevIns)
    277138{
    278     AUDIOSNIFFERSTATE *pThis = PDMINS_2_DATA(pDevIns, AUDIOSNIFFERSTATE *);
    279139    PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
    280 
    281     close_capture_file(pThis->pCapFileCtx);
    282     RTMemFree(pThis->pCapFileCtx);
    283140
    284141    /* Zero the global pointer. */
     
    354211        g_pData = pThis;
    355212    }
    356 
    357     pThis->pCapFileCtx = RTMemAlloc(sizeof(AUDCAPSTATE));
    358     create_capture_file(pThis->pCapFileCtx, "c:\\vbox.wav");
    359213
    360214    return rc;
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