Exemple #1
0
/*****************************************************************************
 * ProcessHeaders: process Opus headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;

    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 2 )
        return VLC_EGENERIC;;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Opus header */
    oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    int ret = ProcessInitialHeader( p_dec, &oggpacket );

    if (ret != VLC_SUCCESS)
        msg_Err( p_dec, "initial Opus header is corrupted" );

    return ret;
}
Exemple #2
0
/*****************************************************************************
 * ProcessHeaders: process Opus headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;

    int i_extra = p_dec->fmt_in.i_extra;
    uint8_t *p_extra = p_dec->fmt_in.p_extra;

    /* If we have no header (e.g. from RTP), make one. */
    bool b_dummy_header = false;
    if( !i_extra )
    {
        OpusHeader header;
        opus_prepare_header( p_dec->fmt_in.audio.i_channels,
                             p_dec->fmt_in.audio.i_rate, &header );
        if( opus_write_header( &p_extra, &i_extra, &header,
                               opus_get_version_string() ) )
            return VLC_ENOMEM;
        b_dummy_header = true;
    }

    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           i_extra, p_extra ) )
    {
        if( b_dummy_header )
            free( p_extra );
        return VLC_EGENERIC;
    }

    if( i_count < 2 )
    {
        if( b_dummy_header )
            free( p_extra );
        return VLC_EGENERIC;
    }

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Opus header */
    oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    int ret = ProcessInitialHeader( p_dec, &oggpacket );

    if (ret != VLC_SUCCESS)
        msg_Err( p_dec, "initial Opus header is corrupted" );

    if( b_dummy_header )
        free( p_extra );

    return ret;
}
Exemple #3
0
/*****************************************************************************
 * ProcessHeaders: process Speex headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 2 )
        goto error;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Vorbis header */
    oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = (unsigned char *)pp_data[0];			// sunqueen modify
    if( ProcessInitialHeader( p_dec, &oggpacket ) != VLC_SUCCESS )
    {
        msg_Err( p_dec, "initial Speex header is corrupted" );
        goto error;
    }

    /* The next packet in order is the comments header */
    oggpacket.b_o_s = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = (unsigned char *)pp_data[1];			// sunqueen modify
    ParseSpeexComments( p_dec, &oggpacket );

    if( p_sys->b_packetizer )
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                                                  p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    return VLC_SUCCESS;

error:
    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    return VLC_EGENERIC;
}
Exemple #4
0
/*****************************************************************************
 * ProcessHeaders: process Speex headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 2 )
        return VLC_EGENERIC;;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Vorbis header */
    oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    if( ProcessInitialHeader( p_dec, &oggpacket ) != VLC_SUCCESS )
    {
        msg_Err( p_dec, "initial Speex header is corrupted" );
        return VLC_EGENERIC;;
    }

    /* The next packet in order is the comments header */
    oggpacket.b_o_s = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = pp_data[1];
    ParseSpeexComments( p_dec, &oggpacket );

    if( p_sys->b_packetizer )
    {
        void* p_extra = realloc( p_dec->fmt_out.p_extra,
                                 p_dec->fmt_in.i_extra );
        if( unlikely( p_extra == NULL ) )
        {
            return VLC_ENOMEM;
        }
        p_dec->fmt_out.p_extra = p_extra;
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

    return VLC_SUCCESS;
}
Exemple #5
0
/*****************************************************************************
 * ProcessHeaders: process Daala headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    int ret = VLC_SUCCESS;
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;
    daala_setup_info *ds = NULL; /* daala setup information */

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 3 )
        return VLC_EGENERIC;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial info header */
    oggpacket.b_o_s  = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    if( daala_decode_header_in( &p_sys->di, &p_sys->dc, &ds, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "this bitstream does not contain Daala video data" );
        ret = VLC_EGENERIC;
        goto cleanup;
    }

    /* Set output properties */
    if( !p_sys->b_packetizer )
    {
        if( p_sys->di.plane_info[0].xdec == 0 && p_sys->di.plane_info[0].ydec == 0 &&
            p_sys->di.plane_info[1].xdec == 1 && p_sys->di.plane_info[1].ydec == 1 &&
            p_sys->di.plane_info[2].xdec == 1 && p_sys->di.plane_info[2].ydec == 1 )
        {
            p_dec->fmt_out.i_codec = VLC_CODEC_I420;
        }
        else if( p_sys->di.plane_info[0].xdec == 0 && p_sys->di.plane_info[0].ydec == 0 &&
                 p_sys->di.plane_info[1].xdec == 0 && p_sys->di.plane_info[1].ydec == 0 &&
                 p_sys->di.plane_info[2].xdec == 0 && p_sys->di.plane_info[2].ydec == 0 )
        {
            p_dec->fmt_out.i_codec = VLC_CODEC_I444;
        }
        else
        {
            msg_Err( p_dec, "unknown chroma in daala sample" );
        }
    }

    p_dec->fmt_out.video.i_width = p_sys->di.pic_width;
    p_dec->fmt_out.video.i_height = p_sys->di.pic_height;
    if( p_sys->di.pic_width && p_sys->di.pic_height )
    {
        p_dec->fmt_out.video.i_visible_width = p_sys->di.pic_width;
        p_dec->fmt_out.video.i_visible_height = p_sys->di.pic_height;
    }

    if( p_sys->di.pixel_aspect_denominator && p_sys->di.pixel_aspect_numerator )
    {
        p_dec->fmt_out.video.i_sar_num = p_sys->di.pixel_aspect_numerator;
        p_dec->fmt_out.video.i_sar_den = p_sys->di.pixel_aspect_denominator;
    }
    else
    {
        p_dec->fmt_out.video.i_sar_num = 1;
        p_dec->fmt_out.video.i_sar_den = 1;
    }

    if( p_sys->di.timebase_numerator > 0 && p_sys->di.timebase_denominator > 0 )
    {
        p_dec->fmt_out.video.i_frame_rate = p_sys->di.timebase_numerator;
        p_dec->fmt_out.video.i_frame_rate_base = p_sys->di.timebase_denominator;
    }

    msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content ",
             p_sys->di.pic_width, p_sys->di.pic_height,
             (double)p_sys->di.timebase_numerator/p_sys->di.timebase_denominator );

    /* The next packet in order is the comments header */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = pp_data[1];

    if( daala_decode_header_in( &p_sys->di, &p_sys->dc, &ds, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "Daala comment header is corrupted" );
        ret = VLC_EGENERIC;
        goto cleanup;
    }

    ParseDaalaComments( p_dec );

    /* The next packet in order is the setup header
     * We need to watch out that this packet is not missing as a
     * missing or corrupted header is fatal. */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[2];
    oggpacket.packet = pp_data[2];
    if( daala_decode_header_in( &p_sys->di, &p_sys->dc, &ds, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "Daala setup header is corrupted" );
        ret = VLC_EGENERIC;
        goto cleanup;
    }

    if( !p_sys->b_packetizer )
    {
        /* We have all the headers, initialize decoder */
        if ( ( p_sys->dcx = daala_decode_alloc( &p_sys->di, ds ) ) == NULL )
        {
            msg_Err( p_dec, "Could not allocate Daala decoder" );
            ret = VLC_EGENERIC;
            goto cleanup;
        }
    }
    else
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

cleanup:
    /* Clean up the decoder setup info... we're done with it */
    daala_setup_free( ds );

    return ret;
}
Exemple #6
0
/*****************************************************************************
 * ProcessHeaders: process Vorbis headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 3 )
        return VLC_EGENERIC;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Vorbis header */
    oggpacket.b_o_s  = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "this bitstream does not contain Vorbis audio data");
        return VLC_EGENERIC;
    }

    /* Setup the format */
    p_dec->fmt_out.audio.i_rate     = p_sys->vi.rate;
    p_dec->fmt_out.audio.i_channels = p_sys->vi.channels;

    if( p_dec->fmt_out.audio.i_channels >= ARRAY_SIZE(pi_channels_maps) )
    {
        msg_Err( p_dec, "invalid number of channels (1-%zu): %i",
                 ARRAY_SIZE(pi_channels_maps),
                 p_dec->fmt_out.audio.i_channels );
        return VLC_EGENERIC;
    }

    p_dec->fmt_out.audio.i_physical_channels =
        p_dec->fmt_out.audio.i_original_channels =
            pi_channels_maps[p_sys->vi.channels];
    p_dec->fmt_out.i_bitrate = __MAX( 0, (int32_t) p_sys->vi.bitrate_nominal );

    date_Init( &p_sys->end_date, p_sys->vi.rate, 1 );

    msg_Dbg( p_dec, "channels:%d samplerate:%ld bitrate:%ud",
             p_sys->vi.channels, p_sys->vi.rate, p_dec->fmt_out.i_bitrate );

    /* The next packet in order is the comments header */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = pp_data[1];
    if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "2nd Vorbis header is corrupted" );
        return VLC_EGENERIC;
    }
    ParseVorbisComments( p_dec );

    /* The next packet in order is the codebooks header
     * We need to watch out that this packet is not missing as a
     * missing or corrupted header is fatal. */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[2];
    oggpacket.packet = pp_data[2];
    if( vorbis_synthesis_headerin( &p_sys->vi, &p_sys->vc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "3rd Vorbis header is corrupted" );
        return VLC_EGENERIC;
    }

    if( !p_sys->b_packetizer )
    {
        /* Initialize the Vorbis packet->PCM decoder */
        vorbis_synthesis_init( &p_sys->vd, &p_sys->vi );
        vorbis_block_init( &p_sys->vd, &p_sys->vb );
    }
    else
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                                           p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

    ConfigureChannelOrder(p_sys->pi_chan_table, p_sys->vi.channels,
                          p_dec->fmt_out.audio.i_physical_channels, true);

    return VLC_SUCCESS;
}
Exemple #7
0
/*****************************************************************************
 * ProcessHeaders: process Theora headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;
    th_setup_info *ts = NULL; /* theora setup information */
    int i_max_pp, i_pp;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 3 )
        goto error;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Vorbis header */
    oggpacket.b_o_s  = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    if( th_decode_headerin( &p_sys->ti, &p_sys->tc, &ts, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "this bitstream does not contain Theora video data" );
        goto error;
    }

    /* Set output properties */
    if( !p_sys->b_packetizer )

    switch( p_sys->ti.pixel_fmt )
    {
      case TH_PF_420:
        p_dec->fmt_out.i_codec = VLC_CODEC_I420;
        break;
      case TH_PF_422:
        p_dec->fmt_out.i_codec = VLC_CODEC_I422;
        break;
      case TH_PF_444:
        p_dec->fmt_out.i_codec = VLC_CODEC_I444;
        break;
      case TH_PF_RSVD:
      default:
        msg_Err( p_dec, "unknown chroma in theora sample" );
        break;
    }

    p_dec->fmt_out.video.i_width = p_sys->ti.frame_width;
    p_dec->fmt_out.video.i_height = p_sys->ti.frame_height;
    if( p_sys->ti.pic_width && p_sys->ti.pic_height )
    {
        p_dec->fmt_out.video.i_visible_width = p_sys->ti.pic_width;
        p_dec->fmt_out.video.i_visible_height = p_sys->ti.pic_height;

        if( p_sys->ti.pic_x || p_sys->ti.pic_y )
        {
            p_dec->fmt_out.video.i_x_offset = p_sys->ti.pic_x;
            p_dec->fmt_out.video.i_y_offset = p_sys->ti.pic_y;
        }
    }

    if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
    {
        p_dec->fmt_out.video.i_sar_num = p_sys->ti.aspect_numerator;
        p_dec->fmt_out.video.i_sar_den = p_sys->ti.aspect_denominator;
    }
    else
    {
        p_dec->fmt_out.video.i_sar_num = 1;
        p_dec->fmt_out.video.i_sar_den = 1;
    }

    if( p_sys->ti.fps_numerator > 0 && p_sys->ti.fps_denominator > 0 )
    {
        p_dec->fmt_out.video.i_frame_rate = p_sys->ti.fps_numerator;
        p_dec->fmt_out.video.i_frame_rate_base = p_sys->ti.fps_denominator;
    }

    msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
             "is %dx%d with offset (%d,%d)",
             p_sys->ti.frame_width, p_sys->ti.frame_height,
             (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
             p_sys->ti.pic_width, p_sys->ti.pic_height,
             p_sys->ti.pic_x, p_sys->ti.pic_y );

    /* Some assertions based on the documentation.  These are mandatory restrictions. */
    assert( p_sys->ti.frame_height % 16 == 0 && p_sys->ti.frame_height < 1048576 );
    assert( p_sys->ti.frame_width % 16 == 0 && p_sys->ti.frame_width < 1048576 );
    assert( p_sys->ti.keyframe_granule_shift >= 0 && p_sys->ti.keyframe_granule_shift <= 31 );
    assert( p_sys->ti.pic_x <= __MIN( p_sys->ti.frame_width - p_sys->ti.pic_width, 255 ) );
    assert( p_sys->ti.pic_y <= p_sys->ti.frame_height - p_sys->ti.pic_height);
    assert( p_sys->ti.frame_height - p_sys->ti.pic_height - p_sys->ti.pic_y <= 255 );

    /* Sanity check that seems necessary for some corrupted files */
    if( p_sys->ti.frame_width < p_sys->ti.pic_width ||
        p_sys->ti.frame_height < p_sys->ti.pic_height )
    {
        msg_Warn( p_dec, "trying to correct invalid theora header "
                  "(frame size (%dx%d) is smaller than frame content (%d,%d))",
                  p_sys->ti.frame_width, p_sys->ti.frame_height,
                  p_sys->ti.pic_width, p_sys->ti.pic_height );

        if( p_sys->ti.frame_width < p_sys->ti.pic_width )
          p_sys->ti.frame_width = p_sys->ti.pic_width;
        if( p_sys->ti.frame_height < p_sys->ti.pic_height )
            p_sys->ti.frame_height = p_sys->ti.pic_height;
    }

    /* The next packet in order is the comments header */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = pp_data[1];

    if( th_decode_headerin( &p_sys->ti, &p_sys->tc, &ts, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "2nd Theora header is corrupted" );
        goto error;
    }

    ParseTheoraComments( p_dec );

    /* The next packet in order is the codebooks header
     * We need to watch out that this packet is not missing as a
     * missing or corrupted header is fatal. */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[2];
    oggpacket.packet = pp_data[2];
    if( th_decode_headerin( &p_sys->ti, &p_sys->tc, &ts, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "3rd Theora header is corrupted" );
        goto error;
    }

    if( !p_sys->b_packetizer )
    {
        /* We have all the headers, initialize decoder */
        if ( ( p_sys->tcx = th_decode_alloc( &p_sys->ti, ts ) ) == NULL )
        {
            msg_Err( p_dec, "Could not allocate Theora decoder" );
            goto error;
        }

        i_pp = var_InheritInteger( p_dec, DEC_CFG_PREFIX "postproc" );
        if ( i_pp >= 0 && !th_decode_ctl( p_sys->tcx,
                    TH_DECCTL_GET_PPLEVEL_MAX, &i_max_pp, sizeof(int) ) )
        {
            i_pp = __MIN( i_pp, i_max_pp );
            if ( th_decode_ctl( p_sys->tcx, TH_DECCTL_SET_PPLEVEL,
                                &i_pp, sizeof(int) ) )
                msg_Err( p_dec, "Failed to set post processing level to %d",
                         i_pp );
            else
                msg_Dbg( p_dec, "Set post processing level to %d / %d",
                         i_pp, i_max_pp );
        }

    }
    else
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                                                  p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    /* Clean up the decoder setup info... we're done with it */
    th_setup_free( ts );
    return VLC_SUCCESS;

error:
    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    /* Clean up the decoder setup info... we're done with it */
    th_setup_free( ts );
    return VLC_EGENERIC;
}
/*****************************************************************************
 * ProcessHeaders: process Kate headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    kate_packet kp;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    int i_ret = VLC_SUCCESS;
    if( i_count < 1 )
    {
        i_ret = VLC_EGENERIC;
        goto end;
    }

    /* Take care of the initial Kate header */
    kp.nbytes = pi_size[0];
    kp.data   = pp_data[0];
    i_ret = kate_decode_headerin( &p_sys->ki, &p_sys->kc, &kp );
    if( i_ret < 0 )
    {
        msg_Err( p_dec, "this bitstream does not contain Kate data (%d)", i_ret );
        goto end;
    }

    msg_Dbg( p_dec, "%s %s text, granule rate %f, granule shift %d",
             p_sys->ki.language, p_sys->ki.category,
             (double)p_sys->ki.gps_numerator/p_sys->ki.gps_denominator,
             p_sys->ki.granule_shift);

    /* parse all remaining header packets */
    for( unsigned i_headeridx = 1; i_headeridx < i_count; i_headeridx++ )
    {
        kp.nbytes = pi_size[i_headeridx];
        kp.data   = pp_data[i_headeridx];
        i_ret = kate_decode_headerin( &p_sys->ki, &p_sys->kc, &kp );
        if( i_ret < 0 )
        {
            msg_Err( p_dec, "Kate header %d is corrupted: %d", i_headeridx, i_ret );
            goto end;
        }

        /* header 1 is comments */
        if( i_headeridx == 1 )
        {
            ParseKateComments( p_dec );
        }
    }

#ifdef ENABLE_PACKETIZER
    if( !p_sys->b_packetizer )
#endif
    {
        /* We have all the headers, initialize decoder */
        msg_Dbg( p_dec, "we have all headers, initialize libkate for decoding" );
        i_ret = kate_decode_init( &p_sys->k, &p_sys->ki );
        if (i_ret < 0)
        {
            msg_Err( p_dec, "Kate failed to initialize for decoding: %d", i_ret );
            return VLC_EGENERIC;
        }
        p_sys->b_ready = true;
    }
#ifdef ENABLE_PACKETIZER
    else
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                                                  p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }
#endif

end:
    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    return i_ret < 0 ? VLC_EGENERIC : VLC_SUCCESS;
}
Exemple #9
0
/*****************************************************************************
 * AddStream
 *****************************************************************************/
static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;
    const es_format_t *fmt = p_input->p_fmt;
    unsigned i_codec_id;

    msg_Dbg( p_mux, "adding input" );

    if( !GetFfmpegCodec( fmt->i_cat, fmt->i_codec, &i_codec_id, NULL )
     || i_codec_id == AV_CODEC_ID_NONE )
    {
        msg_Dbg( p_mux, "couldn't find codec for fourcc '%4.4s'",
                 (char *)&fmt->i_codec );
        return VLC_EGENERIC;
    }

    unsigned opus_size[XIPH_MAX_HEADER_COUNT];
    void     *opus_packet[XIPH_MAX_HEADER_COUNT];
    if( fmt->i_codec == VLC_CODEC_OPUS )
    {
        unsigned count;
        /* Only transmits the first packet (OpusHead) */
        if( xiph_SplitHeaders(opus_size, opus_packet, &count, fmt->i_extra, fmt->p_extra ) ) {
            count = 0;
        }
        if (count != 2 || opus_size[0] < 19) {
            msg_Err(p_mux, "Invalid Opus header");
            return VLC_EGENERIC;
        }
    }

    if( fmt->i_cat != VIDEO_ES && fmt->i_cat != AUDIO_ES)
    {
        msg_Warn( p_mux, "Unhandled ES category" );
        return VLC_EGENERIC;
    }

    /* */
    p_input->p_sys = malloc( sizeof( int ) );
    if( unlikely(p_input->p_sys == NULL) )
        return VLC_ENOMEM;

    *((int *)p_input->p_sys) = p_sys->oc->nb_streams;

    /* */
    AVStream *stream = avformat_new_stream( p_sys->oc, NULL);
    if( !stream )
    {
        free( p_input->p_sys );
        return VLC_EGENERIC;
    }

#if (LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 5, 0))
    AVCodecParameters *codecpar = stream->codecpar;
#else
    AVCodecContext *codecpar = stream->codec;
#endif

    unsigned int i_bitrate = fmt->i_bitrate;
    unsigned int i_frame_rate = fmt->video.i_frame_rate;
    unsigned int i_frame_rate_base = fmt->video.i_frame_rate_base;
    switch( fmt->i_cat )
    {
    case AUDIO_ES:
        codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
        codecpar->channels = fmt->audio.i_channels;
        codecpar->sample_rate = fmt->audio.i_rate;
        stream->time_base = (AVRational){1, codecpar->sample_rate};
        if (fmt->i_bitrate == 0) {
            msg_Warn( p_mux, "Missing audio bitrate, assuming 64k" );
            i_bitrate = 64000;
        }
        break;

    case VIDEO_ES:
        if( !fmt->video.i_frame_rate || !fmt->video.i_frame_rate_base ) {
            msg_Warn( p_mux, "Missing frame rate, assuming 25fps" );
            i_frame_rate = 25;
            i_frame_rate_base = 1;
        } else
            msg_Dbg( p_mux, "Muxing framerate will be %d/%d = %.2f fps",
                    fmt->video.i_frame_rate,
                    fmt->video.i_frame_rate_base,
                    (double)fmt->video.i_frame_rate/(double)fmt->video.i_frame_rate_base );

        codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
        codecpar->width = fmt->video.i_visible_width;
        codecpar->height = fmt->video.i_visible_height;
        av_reduce( &codecpar->sample_aspect_ratio.num,
                   &codecpar->sample_aspect_ratio.den,
                   fmt->video.i_sar_num,
                   fmt->video.i_sar_den, 1 << 30 /* something big */ );
        msg_Dbg(p_mux, "Muxing aspect ratio will be %d/%d",
                fmt->video.i_sar_num, fmt->video.i_sar_den);
        stream->sample_aspect_ratio.den = codecpar->sample_aspect_ratio.den;
        stream->sample_aspect_ratio.num = codecpar->sample_aspect_ratio.num;
        stream->time_base.den = i_frame_rate;
        stream->time_base.num = i_frame_rate_base;
        if (fmt->i_bitrate == 0) {
            msg_Warn( p_mux, "Missing video bitrate, assuming 512k" );
            i_bitrate = 512000;
        } else
            msg_Dbg( p_mux, "Muxing video bitrate will be %d", fmt->i_bitrate );
        break;

    default:
        vlc_assert_unreachable();
    }

    codecpar->bit_rate = i_bitrate;
    codecpar->codec_tag = av_codec_get_tag( p_sys->oc->oformat->codec_tag, i_codec_id );
    if( !codecpar->codec_tag && i_codec_id == AV_CODEC_ID_MP2 )
    {
        i_codec_id = AV_CODEC_ID_MP3;
        codecpar->codec_tag = av_codec_get_tag( p_sys->oc->oformat->codec_tag, i_codec_id );
    }
    codecpar->codec_id = i_codec_id;

    if( fmt->i_extra )
    {
        if( fmt->i_codec == VLC_CODEC_OPUS )
        {
            codecpar->extradata_size = opus_size[0];
            codecpar->extradata = av_malloc( opus_size[0] );
            memcpy( codecpar->extradata, opus_packet[0], opus_size[0] );
        }
        else
        {
            codecpar->extradata_size = fmt->i_extra;
            codecpar->extradata = av_malloc( fmt->i_extra );
            memcpy( codecpar->extradata, fmt->p_extra, fmt->i_extra );
        }
    }

    return VLC_SUCCESS;
}
Exemple #10
0
/*****************************************************************************
 * ProcessHeaders: process Theora headers.
 *****************************************************************************/
static int ProcessHeaders( decoder_t *p_dec )
{
    decoder_sys_t *p_sys = p_dec->p_sys;
    ogg_packet oggpacket;

    unsigned pi_size[XIPH_MAX_HEADER_COUNT];
    void     *pp_data[XIPH_MAX_HEADER_COUNT];
    unsigned i_count;
    if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
                           p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
        return VLC_EGENERIC;
    if( i_count < 3 )
        goto error;

    oggpacket.granulepos = -1;
    oggpacket.e_o_s = 0;
    oggpacket.packetno = 0;

    /* Take care of the initial Vorbis header */
    oggpacket.b_o_s  = 1; /* yes this actually is a b_o_s packet :) */
    oggpacket.bytes  = pi_size[0];
    oggpacket.packet = pp_data[0];
    if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "this bitstream does not contain Theora video data" );
        goto error;
    }

    /* Set output properties */
    if( !p_sys->b_packetizer )
    switch( p_sys->ti.pixelformat )
    {
      case OC_PF_420:
        p_dec->fmt_out.i_codec = VLC_CODEC_I420;
        break;
      case OC_PF_422:
        p_dec->fmt_out.i_codec = VLC_CODEC_I422;
        break;
      case OC_PF_444:
        p_dec->fmt_out.i_codec = VLC_CODEC_I444;
        break;
      case OC_PF_RSVD:
      default:
        msg_Err( p_dec, "unknown chroma in theora sample" );
        break;
    }
    p_dec->fmt_out.video.i_width = p_sys->ti.width;
    p_dec->fmt_out.video.i_height = p_sys->ti.height;
    if( p_sys->ti.frame_width && p_sys->ti.frame_height )
    {
        p_dec->fmt_out.video.i_visible_width = p_sys->ti.frame_width;
        p_dec->fmt_out.video.i_visible_height = p_sys->ti.frame_height;
        if( p_sys->ti.offset_x || p_sys->ti.offset_y )
        {
            p_dec->fmt_out.video.i_x_offset = p_sys->ti.offset_x;
            p_dec->fmt_out.video.i_y_offset = p_sys->ti.offset_y;
        }
    }

    if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
    {
        p_dec->fmt_out.video.i_sar_num = p_sys->ti.aspect_numerator;
        p_dec->fmt_out.video.i_sar_den = p_sys->ti.aspect_denominator;
    }
    else
    {
        p_dec->fmt_out.video.i_sar_num = 1;
        p_dec->fmt_out.video.i_sar_den = 1;
    }

    if( p_sys->ti.fps_numerator > 0 && p_sys->ti.fps_denominator > 0 )
    {
        p_dec->fmt_out.video.i_frame_rate = p_sys->ti.fps_numerator;
        p_dec->fmt_out.video.i_frame_rate_base = p_sys->ti.fps_denominator;
    }

    msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
             "is %dx%d with offset (%d,%d)",
             p_sys->ti.width, p_sys->ti.height,
             (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
             p_sys->ti.frame_width, p_sys->ti.frame_height,
             p_sys->ti.offset_x, p_sys->ti.offset_y );

    /* Sanity check that seems necessary for some corrupted files */
    if( p_sys->ti.width < p_sys->ti.frame_width ||
        p_sys->ti.height < p_sys->ti.frame_height )
    {
        msg_Warn( p_dec, "trying to correct invalid theora header "
                  "(frame size (%dx%d) is smaller than frame content (%d,%d))",
                  p_sys->ti.width, p_sys->ti.height,
                  p_sys->ti.frame_width, p_sys->ti.frame_height );

        if( p_sys->ti.width < p_sys->ti.frame_width )
            p_sys->ti.width = p_sys->ti.frame_width;
        if( p_sys->ti.height < p_sys->ti.frame_height )
            p_sys->ti.height = p_sys->ti.frame_height;
    }

    /* The next packet in order is the comments header */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[1];
    oggpacket.packet = pp_data[1];
    if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "2nd Theora header is corrupted" );
        goto error;
    }

    ParseTheoraComments( p_dec );

    /* The next packet in order is the codebooks header
     * We need to watch out that this packet is not missing as a
     * missing or corrupted header is fatal. */
    oggpacket.b_o_s  = 0;
    oggpacket.bytes  = pi_size[2];
    oggpacket.packet = pp_data[2];
    if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
    {
        msg_Err( p_dec, "3rd Theora header is corrupted" );
        goto error;
    }

    if( !p_sys->b_packetizer )
    {
        /* We have all the headers, initialize decoder */
        theora_decode_init( &p_sys->td, &p_sys->ti );
    }
    else
    {
        p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
        p_dec->fmt_out.p_extra = xrealloc( p_dec->fmt_out.p_extra,
                                                  p_dec->fmt_out.i_extra );
        memcpy( p_dec->fmt_out.p_extra,
                p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
    }

    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    return VLC_SUCCESS;

error:
    for( unsigned i = 0; i < i_count; i++ )
        free( pp_data[i] );
    return VLC_EGENERIC;
}