quicktime.c

VLC Player Source Code

    msg_Dbg( p_dec, "FreeLibrary ok." );
#else
    ExitMovies();
#endif

#if 0
    /* Segfault */
#ifdef LOADER
    Restore_LDT_Keeper( p_sys->ldt_fs );
    msg_Dbg( p_dec, "Restore_LDT_Keeper" );
#endif
#endif

    vlc_mutex_unlock( lock );

    free( p_sys );
}

/*****************************************************************************
 * OpenAudio:
 *****************************************************************************/
static int OpenAudio( decoder_t *p_dec )
{
    decoder_sys_t *p_sys;

    int             i_error;
    char            fcc[4];
    unsigned long   WantedBufferSize;
    unsigned long   InputBufferSize = 0;
    unsigned long   OutputBufferSize = 0;

    /* get lock, avoid segfault */
    vlc_mutex_t    *lock = var_AcquireMutex( "qt_mutex" );
    if( lock == NULL )
        return VLC_EGENERIC;

    p_sys = calloc( sizeof( decoder_sys_t ), 1 );
    p_dec->p_sys = p_sys;
    p_dec->pf_decode_audio = DecodeAudio;

    memcpy( fcc, &p_dec->fmt_in.i_codec, 4 );

#ifdef __APPLE__
    EnterMovies();
#endif

    if( QTAudioInit( p_dec ) )
    {
        msg_Err( p_dec, "cannot initialize QT");
        goto exit_error;
    }

#ifndef __APPLE__
    if( ( i_error = p_sys->InitializeQTML( 6 + 16 ) ) )
    {
        msg_Dbg( p_dec, "error on InitializeQTML = %d", i_error );
        goto exit_error;
    }
#endif

    /* input format settings */
    p_sys->InputFormatInfo.flags       = 0;
    p_sys->InputFormatInfo.sampleCount = 0;
    p_sys->InputFormatInfo.buffer      = NULL;
    p_sys->InputFormatInfo.reserved    = 0;
    p_sys->InputFormatInfo.numChannels = p_dec->fmt_in.audio.i_channels;
    p_sys->InputFormatInfo.sampleSize  = p_dec->fmt_in.audio.i_bitspersample;
    p_sys->InputFormatInfo.sampleRate  = p_dec->fmt_in.audio.i_rate;
    p_sys->InputFormatInfo.format      = FCC( fcc[0], fcc[1], fcc[2], fcc[3] );

    /* output format settings */
    p_sys->OutputFormatInfo.flags       = 0;
    p_sys->OutputFormatInfo.sampleCount = 0;
    p_sys->OutputFormatInfo.buffer      = NULL;
    p_sys->OutputFormatInfo.reserved    = 0;
    p_sys->OutputFormatInfo.numChannels = p_dec->fmt_in.audio.i_channels;
    p_sys->OutputFormatInfo.sampleSize  = 16;
    p_sys->OutputFormatInfo.sampleRate  = p_dec->fmt_in.audio.i_rate;
    p_sys->OutputFormatInfo.format      = FCC( 'N', 'O', 'N', 'E' );


    i_error = p_sys->SoundConverterOpen( &p_sys->InputFormatInfo,
                                         &p_sys->OutputFormatInfo,
                                         &p_sys->myConverter );
    if( i_error )
    {
        msg_Err( p_dec, "error on SoundConverterOpen = %d", i_error );
        goto exit_error;
    }

#if 0
    /* tell the sound converter we accept VBR formats */
    i_error = SoundConverterSetInfo( p_dec->myConverter, siClientAcceptsVBR,
                                     (void *)true );
#endif

    if( p_dec->fmt_in.i_extra > 36 + 8 )
    {
        i_error = p_sys->SoundConverterSetInfo( p_sys->myConverter,
                                                FCC( 'w', 'a', 'v', 'e' ),
                                                ((uint8_t*)p_dec->fmt_in.p_extra) + 36 + 8 );

        msg_Dbg( p_dec, "error on SoundConverterSetInfo = %d", i_error );
    }

    WantedBufferSize = p_sys->OutputFormatInfo.numChannels *
                       p_sys->OutputFormatInfo.sampleRate * 2;
    p_sys->FramesToGet = 0;

    i_error = p_sys->SoundConverterGetBufferSizes( p_sys->myConverter,
                                                   WantedBufferSize,
                                                   &p_sys->FramesToGet,
                                                   &InputBufferSize,
                                                   &OutputBufferSize );

    msg_Dbg( p_dec, "WantedBufferSize=%li InputBufferSize=%li "
             "OutputBufferSize=%li FramesToGet=%li",
             WantedBufferSize, InputBufferSize, OutputBufferSize,
             p_sys->FramesToGet );

    p_sys->InFrameSize  = (InputBufferSize + p_sys->FramesToGet - 1 ) /
                            p_sys->FramesToGet;
    p_sys->OutFrameSize = OutputBufferSize / p_sys->FramesToGet;

    msg_Dbg( p_dec, "frame size %d -> %d",
             p_sys->InFrameSize, p_sys->OutFrameSize );

    if( (i_error = p_sys->SoundConverterBeginConversion(p_sys->myConverter)) )
    {
        msg_Err( p_dec,
                 "error on SoundConverterBeginConversion = %d", i_error );
        goto exit_error;
    }


    es_format_Init( &p_dec->fmt_out, AUDIO_ES, AOUT_FMT_S16_NE );
    p_dec->fmt_out.audio.i_rate = p_sys->OutputFormatInfo.sampleRate;
    p_dec->fmt_out.audio.i_channels = p_sys->OutputFormatInfo.numChannels;
    p_dec->fmt_out.audio.i_physical_channels =
    p_dec->fmt_out.audio.i_original_channels =
        pi_channels_maps[p_sys->OutputFormatInfo.numChannels];

    aout_DateInit( &p_sys->date, p_dec->fmt_out.audio.i_rate );

    p_sys->i_buffer      = 0;
    p_sys->i_buffer_size = 100*1000;
    p_sys->p_buffer      = malloc( p_sys->i_buffer_size );
    if( !p_sys->p_buffer )
        goto exit_error;

    p_sys->i_out = 0;
    p_sys->i_out_frames = 0;

    vlc_mutex_unlock( lock );
    return VLC_SUCCESS;

exit_error:

#ifdef LOADER
    Restore_LDT_Keeper( p_sys->ldt_fs );
#endif
    vlc_mutex_unlock( lock );

    free( p_sys );
    return VLC_EGENERIC;
}

/*****************************************************************************
 * DecodeAudio:
 *****************************************************************************/
static aout_buffer_t *DecodeAudio( decoder_t *p_dec, block_t **pp_block )
{
    decoder_sys_t *p_sys = p_dec->p_sys;

    block_t     *p_block;
    int         i_error;

#ifdef LOADER
    /* We must do open and close in the same thread (unless we do
     * Setup_LDT_Keeper in the main thread before all others */
    if( p_sys == NULL )
    {
        if( OpenAudio( p_dec ) )
        {
            /* Fatal */
            p_dec->b_error = true;
            return NULL;
        }

        p_sys = p_dec->p_sys;
    }
#endif

    if( pp_block == NULL || *pp_block == NULL )
    {
        return NULL;
    }
    p_block = *pp_block;

    if( p_sys->i_out_frames > 0 && p_sys->i_out >= p_sys->i_out_frames )
    {
        /* Ask new data */
        p_sys->i_out = 0;
        p_sys->i_out_frames = 0;

        *pp_block = NULL;
        return NULL;
    }

    if( p_sys->i_out_frames <= 0 )
    {
        p_sys->pts = p_block->i_pts;
        if( decoder_GetDisplayDate( p_dec, p_block->i_pts ) < mdate() )
        {
            block_Release( p_block );
            *pp_block = NULL;
            return NULL;
        }

        /* Append data */
        if( p_sys->i_buffer_size < p_sys->i_buffer + p_block->i_buffer )
        {
            p_sys->i_buffer_size = p_sys->i_buffer + p_block->i_buffer + 1024;
            p_sys->p_buffer = realloc( p_sys->p_buffer, p_sys->i_buffer_size );
        }
        memcpy( &p_sys->p_buffer[p_sys->i_buffer], p_block->p_buffer,
                p_block->i_buffer );
        p_sys->i_buffer += p_block->i_buffer;

        if( p_sys->i_buffer > p_sys->InFrameSize )
        {
            int i_frames = p_sys->i_buffer / p_sys->InFrameSize;
            unsigned long i_out_frames, i_out_bytes;
            vlc_mutex_t *lock = var_AcquireMutex( "qt_mutex ");

            i_error = p_sys->SoundConverterConvertBuffer( p_sys->myConverter,
                                                          p_sys->p_buffer,
                                                          i_frames,
                                                          p_sys->out_buffer,
                                                          &i_out_frames,
                                                          &i_out_bytes );
            vlc_mutex_unlock( lock );

            /*
            msg_Dbg( p_dec, "decoded %d frames -> %ld frames (error=%d)",
                     i_frames, i_out_frames, i_error );

            msg_Dbg( p_dec, "decoded %ld frames = %ld bytes",
                     i_out_frames, i_out_bytes );
            */

            p_sys->i_buffer -= i_frames * p_sys->InFrameSize;
            if( p_sys->i_buffer > 0 )
            {
                memmove( &p_sys->p_buffer[0],
                         &p_sys->p_buffer[i_frames * p_sys->InFrameSize],
                         p_sys->i_buffer );
            }

            if( p_sys->pts != 0 &&
                p_sys->pts != aout_DateGet( &p_sys->date ) )
            {
                aout_DateSet( &p_sys->date, p_sys->pts );
            }
            else if( !aout_DateGet( &p_sys->date ) )
            {
                return NULL;
            }

            if( !i_error && i_out_frames > 0 )
            {
                /* we have others samples */
                p_sys->i_out_frames = i_out_frames;
                p_sys->i_out = 0;
            }
        }
    }

    if( p_sys->i_out < p_sys->i_out_frames )
    {
        aout_buffer_t *p_out;
        int  i_frames = __MIN( p_sys->i_out_frames - p_sys->i_out, 1000 );

        p_out = p_dec->pf_aout_buffer_new( p_dec, i_frames );

        if( p_out )
        {
            p_out->start_date = aout_DateGet( &p_sys->date );
            p_out->end_date = aout_DateIncrement( &p_sys->date, i_frames );

            memcpy( p_out->p_buffer,
                    &p_sys->out_buffer[2 * p_sys->i_out * p_dec->fmt_out.audio.i_channels],
                    p_out->i_nb_bytes );

            p_sys->i_out += i_frames;
        }
        return p_out;
    }

    return NULL;
}

/*****************************************************************************
 * OpenVideo:
 *****************************************************************************/
static int OpenVideo( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = malloc( sizeof( decoder_sys_t ) );
    if( !p_sys )
        return VLC_ENOMEM;

#ifndef WIN32
    vlc_mutex_t                        *lock;
    long                                i_result;
    ComponentDescription                desc;
    Component                           prev;
    ComponentResult                     cres;
    ImageSubCodecDecompressCapabilities icap;   /* for ImageCodecInitialize() */
    CodecInfo                           cinfo;  /* for ImageCodecGetCodecInfo() */
    ImageDescription                    *id;

    char                fcc[4];
    int     i_vide = p_dec->fmt_in.i_extra;
    uint8_t *p_vide = p_dec->fmt_in.p_extra;

    p_dec->p_sys = p_sys;
    p_dec->pf_decode_video = DecodeVideo;
    p_sys->i_late = 0;

    if( i_vide <= 0 )
    {
        msg_Err( p_dec, "missing extra info" );
        free( p_sys );
        return VLC_EGENERIC;
    }

    memcpy( fcc, &p_dec->fmt_in.i_codec, 4 );
    msg_Dbg( p_dec, "quicktime_video %4.4s %dx%d",
             fcc, p_dec->fmt_in.video.i_width, p_dec->fmt_in.video.i_height );

    /* get lock, avoid segfault */
    lock = var_AcquireMutex( "qt_mutex" );

#ifdef __APPLE__
    EnterMovies();
#endif

    if( QTVideoInit( p_dec ) )
    {
        msg_Err( p_dec, "cannot initialize QT");
        goto exit_error;
    }

#ifndef __APPLE__
    if( ( i_result = p_sys->InitializeQTML( 6 + 16 ) ) )
    {
        msg_Dbg( p_dec, "error on InitializeQTML = %d", (int)i_result );
        goto exit_error;
    }
#endif

    /* init ComponentDescription */
    memset( &desc, 0, sizeof( ComponentDescription ) );
    desc.componentType      = FCC( 'i', 'm', 'd', 'c' );