x264.c

uclinux 下的vlc播放器源代码

    add_integer( SOUT_CFG_PREFIX "qp", 26, NULL, QP_TEXT, QP_LONGTEXT,
                 VLC_FALSE );
        change_integer_range( 0, 51 ); /* QP 0 -> lossless encoding */

#if X264_BUILD >= 37 /* r334 */
    add_integer( SOUT_CFG_PREFIX "crf", 0, NULL, CRF_TEXT,
                 CRF_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 51 );
#endif

    add_integer( SOUT_CFG_PREFIX "qpmin", 10, NULL, QPMIN_TEXT,
                 QPMIN_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 51 );
    	add_deprecated( SOUT_CFG_PREFIX "qp-min", VLC_FALSE ); /* Deprecated since 0.8.5 */

    add_integer( SOUT_CFG_PREFIX "qpmax", 51, NULL, QPMAX_TEXT,
                 QPMAX_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 51 );
    	add_deprecated( SOUT_CFG_PREFIX "qp-max", VLC_FALSE ); /* Deprecated since 0.8.5 */

    add_integer( SOUT_CFG_PREFIX "qpstep", 4, NULL, QPSTEP_TEXT,
                 QPSTEP_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 51 );

    add_float( SOUT_CFG_PREFIX "ratetol", 1.0, NULL, RATETOL_TEXT,
               RATETOL_LONGTEXT, VLC_FALSE );
        change_float_range( 0, 100 );
    	add_deprecated( SOUT_CFG_PREFIX "tolerance", VLC_FALSE ); /* Deprecated since 0.8.5 */

    add_integer( SOUT_CFG_PREFIX "vbv-maxrate", 0, NULL, VBV_MAXRATE_TEXT,
                 VBV_MAXRATE_LONGTEXT, VLC_FALSE );

    add_integer( SOUT_CFG_PREFIX "vbv-bufsize", 0, NULL, VBV_BUFSIZE_TEXT,
                 VBV_BUFSIZE_LONGTEXT, VLC_FALSE );

    add_float( SOUT_CFG_PREFIX "vbv-init", 0.9, NULL, VBV_INIT_TEXT,
               VBV_INIT_LONGTEXT, VLC_FALSE );
        change_float_range( 0, 1 );

    add_float( SOUT_CFG_PREFIX "ipratio", 1.40, NULL, IPRATIO_TEXT,
               IPRATIO_LONGTEXT, VLC_FALSE );
        change_float_range( 1, 2 );

    add_float( SOUT_CFG_PREFIX "pbratio", 1.30, NULL, PBRATIO_TEXT,
               PBRATIO_LONGTEXT, VLC_FALSE );
        change_float_range( 1, 2 );

#if X264_BUILD >= 23 /* r190 */
    add_integer( SOUT_CFG_PREFIX "chroma-qp-offset", 0, NULL, CHROMA_QP_OFFSET_TEXT,
                 CHROMA_QP_OFFSET_LONGTEXT, VLC_FALSE );
#endif

    add_float( SOUT_CFG_PREFIX "qcomp", 0.60, NULL, QCOMP_TEXT,
               QCOMP_LONGTEXT, VLC_FALSE );
        change_float_range( 0, 1 );

    add_float( SOUT_CFG_PREFIX "cplxblur", 20.0, NULL, CPLXBLUR_TEXT,
               CPLXBLUR_LONGTEXT, VLC_FALSE );

    add_float( SOUT_CFG_PREFIX "qblur", 0.5, NULL, QBLUR_TEXT,
               QBLUR_LONGTEXT, VLC_FALSE );

/* Analysis */

    /* x264 partitions = none (default). set at least "normal" mode. */
    add_string( SOUT_CFG_PREFIX "partitions", "normal", NULL, ANALYSE_TEXT,
                ANALYSE_LONGTEXT, VLC_FALSE );
        change_string_list( enc_analyse_list, enc_analyse_list_text, 0 );
    	add_deprecated( SOUT_CFG_PREFIX "analyse", VLC_FALSE ); /* Deprecated since 0.8.6 */

    add_string( SOUT_CFG_PREFIX "direct", "spatial", NULL, DIRECT_PRED_TEXT,
                DIRECT_PRED_LONGTEXT, VLC_FALSE );
        change_string_list( direct_pred_list, direct_pred_list_text, 0 );

#if X264_BUILD >= 52 /* r573 */
    add_integer( SOUT_CFG_PREFIX "direct-8x8", 0, NULL, DIRECT_PRED_SIZE_TEXT,
                 DIRECT_PRED_SIZE_LONGTEXT, VLC_FALSE );
        change_integer_range( -1, 1 );
#endif

#if X264_BUILD >= 0x0012 /* r134 */
    add_bool( SOUT_CFG_PREFIX "weightb", 0, NULL, WEIGHTB_TEXT,
              WEIGHTB_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 24 /* r221 */
    add_string( SOUT_CFG_PREFIX "me", "hex", NULL, ME_TEXT,
                ME_LONGTEXT, VLC_FALSE );
        change_string_list( enc_me_list, enc_me_list_text, 0 );

    add_integer( SOUT_CFG_PREFIX "merange", 16, NULL, MERANGE_TEXT,
                 MERANGE_LONGTEXT, VLC_FALSE );
        change_integer_range( 1, 64 );
#endif

    add_integer( SOUT_CFG_PREFIX "subme", 5, NULL, SUBME_TEXT,
                 SUBME_LONGTEXT, VLC_FALSE );
        change_integer_range( 1, SUBME_MAX );
    	add_deprecated( SOUT_CFG_PREFIX "subpel", VLC_FALSE ); /* Deprecated since 0.8.5 */

#if X264_BUILD >= 41 /* r368 */
    add_bool( SOUT_CFG_PREFIX "b-rdo", 0, NULL, B_RDO_TEXT,
              B_RDO_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 36 /* r318 */
    add_bool( SOUT_CFG_PREFIX "mixed-refs", 0, NULL, MIXED_REFS_TEXT,
              MIXED_REFS_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 23 /* r171 */
    add_bool( SOUT_CFG_PREFIX "chroma-me", 1, NULL, CHROMA_ME_TEXT,
              CHROMA_ME_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 43 /* r390 */
    add_bool( SOUT_CFG_PREFIX "bime", 0, NULL, BIME_TEXT,
              BIME_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 30 /* r251 */
    add_bool( SOUT_CFG_PREFIX "8x8dct", 0, NULL, TRANSFORM_8X8DCT_TEXT,
              TRANSFORM_8X8DCT_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 39 /* r360 */
    add_integer( SOUT_CFG_PREFIX "trellis", 0, NULL, TRELLIS_TEXT,
                 TRELLIS_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 2 );
#endif

#if X264_BUILD >= 42 /* r384 */
    add_bool( SOUT_CFG_PREFIX "fast-pskip", 1, NULL, FAST_PSKIP_TEXT,
              FAST_PSKIP_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 46 /* r503 */
    add_bool( SOUT_CFG_PREFIX "dct-decimate", 1, NULL, DCT_DECIMATE_TEXT,
              DCT_DECIMATE_LONGTEXT, VLC_FALSE );
#endif

#if X264_BUILD >= 44 /* r398 */
    add_integer( SOUT_CFG_PREFIX "nr", 0, NULL, NR_TEXT,
                 NR_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 1000 );
#endif

#if X264_BUILD >= 52 /* r573 */
    add_integer( SOUT_CFG_PREFIX "deadzone-inter", 21, NULL, DEADZONE_INTER_TEXT,
                 DEADZONE_INTRA_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 32 );

    add_integer( SOUT_CFG_PREFIX "deadzone-intra", 11, NULL, DEADZONE_INTRA_TEXT,
                 DEADZONE_INTRA_LONGTEXT, VLC_FALSE );
        change_integer_range( 0, 32 );
#endif

/* Input/Output */

    add_bool( SOUT_CFG_PREFIX "asm", 1, NULL, ASM_TEXT,
              ASM_LONGTEXT, VLC_FALSE );

    /* x264 psnr = 1 (default). disable PSNR computation for speed. */
    add_bool( SOUT_CFG_PREFIX "psnr", 0, NULL, PSNR_TEXT,
              PSNR_LONGTEXT, VLC_FALSE );

#if X264_BUILD >= 50 /* r554 */
    /* x264 ssim = 1 (default). disable SSIM computation for speed. */
    add_bool( SOUT_CFG_PREFIX "ssim", 0, NULL, SSIM_TEXT,
              SSIM_LONGTEXT, VLC_FALSE );
#endif

    add_bool( SOUT_CFG_PREFIX "quiet", 0, NULL, QUIET_TEXT,
              QUIET_LONGTEXT, VLC_FALSE );

#if X264_BUILD >= 47 /* r518 */
    add_integer( SOUT_CFG_PREFIX "sps-id", 0, NULL, SPS_ID_TEXT,
                 SPS_ID_LONGTEXT, VLC_FALSE );
#endif

    add_bool( SOUT_CFG_PREFIX "aud", 0, NULL, AUD_TEXT,
              AUD_LONGTEXT, VLC_FALSE );

#if X264_BUILD >= 0x000e /* r81 */
    add_bool( SOUT_CFG_PREFIX "verbose", 0, NULL, VERBOSE_TEXT,
              VERBOSE_LONGTEXT, VLC_FALSE );
#endif

vlc_module_end();

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static const char *ppsz_sout_options[] = {
    "8x8dct", "analyse", "asm", "aud", "bframes", "bime", "bpyramid",
    "b-adapt", "b-bias", "b-rdo", "cabac", "chroma-me", "chroma-qp-offset",
    "cplxblur", "crf", "dct-decimate", "deadzone-inter", "deadzone-intra",
    "deblock", "direct", "direct-8x8", "filter", "fast-pskip", "frameref",
    "interlaced", "ipratio", "keyint", "keyint-min", "level", "loopfilter",
    "me", "merange", "min-keyint", "mixed-refs", "nf", "nr", "partitions",
    "pbratio", "psnr", "qblur", "qp", "qcomp", "qpstep", "qpmax", "qpmin",
    "qp-max", "qp-min", "quiet", "ratetol", "ref", "scenecut", "sps-id",
    "ssim", "subme", "subpel", "tolerance", "trellis", "verbose",
    "vbv-bufsize", "vbv-init", "vbv-maxrate", "weightb", NULL
};

static block_t *Encode( encoder_t *, picture_t * );

struct encoder_sys_t
{
    x264_t          *h;
    x264_param_t    param;

    int             i_buffer;
    uint8_t         *p_buffer;

    mtime_t         i_last_ref_pts;
};

/*****************************************************************************
 * Open: probe the encoder
 *****************************************************************************/
static int  Open ( vlc_object_t *p_this )
{
    encoder_t     *p_enc = (encoder_t *)p_this;
    encoder_sys_t *p_sys;
    vlc_value_t    val;
    int i_qmin = 0, i_qmax = 0;
    x264_nal_t    *nal;
    int i, i_nal;

    if( p_enc->fmt_out.i_codec != VLC_FOURCC( 'h', '2', '6', '4' ) &&
        !p_enc->b_force )
    {
        return VLC_EGENERIC;
    }

#if X264_BUILD < 37
    if( p_enc->fmt_in.video.i_width % 16 != 0 ||
        p_enc->fmt_in.video.i_height % 16 != 0 )
    {
        msg_Warn( p_enc, "size is not a multiple of 16 (%ix%i)",
                  p_enc->fmt_in.video.i_width, p_enc->fmt_in.video.i_height );

        if( p_enc->fmt_in.video.i_width < 16 ||
            p_enc->fmt_in.video.i_height < 16 )
        {
            msg_Err( p_enc, "video is too small to be cropped" );
            return VLC_EGENERIC;
        }

        msg_Warn( p_enc, "cropping video to %ix%i",
                  p_enc->fmt_in.video.i_width >> 4 << 4,
                  p_enc->fmt_in.video.i_height >> 4 << 4 );
    }
#endif

    sout_CfgParse( p_enc, SOUT_CFG_PREFIX, ppsz_sout_options, p_enc->p_cfg );

    p_enc->fmt_out.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
    p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');

    p_enc->pf_encode_video = Encode;
    p_enc->pf_encode_audio = NULL;
    p_enc->p_sys = p_sys = malloc( sizeof( encoder_sys_t ) );
    p_sys->i_last_ref_pts = 0;

    x264_param_default( &p_sys->param );
    p_sys->param.i_width  = p_enc->fmt_in.video.i_width;
    p_sys->param.i_height = p_enc->fmt_in.video.i_height;
#if X264_BUILD < 37
    p_sys->param.i_width  = p_sys->param.i_width >> 4 << 4;
    p_sys->param.i_height = p_sys->param.i_height >> 4 << 4;
#endif

    /* average bitrate specified by transcode vb */
    p_sys->param.rc.i_bitrate = p_enc->fmt_out.i_bitrate / 1000;

#if X264_BUILD < 48
    /* cbr = 1 overrides qp or crf and sets an average bitrate
       but maxrate = average bitrate is needed for "real" CBR */
    if( p_sys->param.rc.i_bitrate > 0 ) p_sys->param.rc.b_cbr = 1;
#else
    if( p_sys->param.rc.i_bitrate > 0 ) p_sys->param.rc.i_rc_method = X264_RC_ABR;
#endif

    var_Get( p_enc, SOUT_CFG_PREFIX "qpstep", &val );
    if( val.i_int >= 0 && val.i_int <= 51 ) p_sys->param.rc.i_qp_step = val.i_int;
    var_Get( p_enc, SOUT_CFG_PREFIX "qpmin", &val );
    if( val.i_int >= 0 && val.i_int <= 51 ) i_qmin = val.i_int;
    var_Get( p_enc, SOUT_CFG_PREFIX "qpmax", &val );
    if( val.i_int >= 0 && val.i_int <= 51 ) i_qmax = val.i_int;

    var_Get( p_enc, SOUT_CFG_PREFIX "qp", &val );
    if( val.i_int >= 0 && val.i_int <= 51 )
    {
        if( i_qmin > val.i_int ) i_qmin = val.i_int;
        if( i_qmax < val.i_int ) i_qmax = val.i_int;

#if X264_BUILD >= 0x000a
        p_sys->param.rc.i_qp_constant = val.i_int;
        p_sys->param.rc.i_qp_min = i_qmin;
        p_sys->param.rc.i_qp_max = i_qmax;
#else
        p_sys->param.i_qp_constant = val.i_int;
#endif
    }

#if X264_BUILD >= 24
    var_Get( p_enc, SOUT_CFG_PREFIX "ratetol", &val );
    p_sys->param.rc.f_rate_tolerance = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "vbv-init", &val );
    p_sys->param.rc.f_vbv_buffer_init = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "vbv-bufsize", &val );
    p_sys->param.rc.i_vbv_buffer_size = val.i_int;

    /* x264 vbv-bufsize = 0 (default). if not provided set period
       in seconds for local maximum bitrate (cache/bufsize) based
       on average bitrate. */
    if( !val.i_int )
        p_sys->param.rc.i_vbv_buffer_size = p_sys->param.rc.i_bitrate * 2;

    /* max bitrate = average bitrate -> CBR */
    var_Get( p_enc, SOUT_CFG_PREFIX "vbv-maxrate", &val );
    p_sys->param.rc.i_vbv_max_bitrate = val.i_int;

#else
    p_sys->param.rc.i_rc_buffer_size = p_sys->param.rc.i_bitrate;
    p_sys->param.rc.i_rc_init_buffer = p_sys->param.rc.i_bitrate / 4;
#endif

    var_Get( p_enc, SOUT_CFG_PREFIX "cabac", &val );
    p_sys->param.b_cabac = val.b_bool;

    /* disable deblocking when nf (no loop filter) is enabled */
    var_Get( p_enc, SOUT_CFG_PREFIX "nf", &val );
    p_sys->param.b_deblocking_filter = !val.b_bool;

    var_Get( p_enc, SOUT_CFG_PREFIX "deblock", &val );
    if( val.psz_string )
    {
        char *p = strchr( val.psz_string, ':' );
        p_sys->param.i_deblocking_filter_alphac0 = atoi( val.psz_string );
        p_sys->param.i_deblocking_filter_beta = p ? atoi( p+1 ) : p_sys->param.i_deblocking_filter_alphac0;
        free( val.psz_string );
    }

    var_Get( p_enc, SOUT_CFG_PREFIX "level", &val );
    if( val.psz_string )
    {
        if( atof (val.psz_string) < 6 )
            p_sys->param.i_level_idc = (int) ( 10 * atof (val.psz_string) + .5);
        else
            p_sys->param.i_level_idc = atoi (val.psz_string);
        free( val.psz_string );
    }

#if X264_BUILD >= 51 /* r570 */
    var_Get( p_enc, SOUT_CFG_PREFIX "interlaced", &val );
    p_sys->param.b_interlaced = val.b_bool;
#endif

    var_Get( p_enc, SOUT_CFG_PREFIX "ipratio", &val );
    p_sys->param.rc.f_ip_factor = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "pbratio", &val );
    p_sys->param.rc.f_pb_factor = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "qcomp", &val );
    p_sys->param.rc.f_qcompress = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "cplxblur", &val );
    p_sys->param.rc.f_complexity_blur = val.f_float;

    var_Get( p_enc, SOUT_CFG_PREFIX "qblur", &val );
    p_sys->param.rc.f_qblur = val.f_float;

#if X264_BUILD >= 0x000e
    var_Get( p_enc, SOUT_CFG_PREFIX "verbose", &val );
    if( val.b_bool ) p_sys->param.i_log_level = X264_LOG_DEBUG;
#endif

    var_Get( p_enc, SOUT_CFG_PREFIX "quiet", &val );
    if( val.b_bool ) p_sys->param.i_log_level = X264_LOG_NONE;

#if X264_BUILD >= 47 /* r518 */
    var_Get( p_enc, SOUT_CFG_PREFIX "sps-id", &val );
    if( val.i_int >= 0 ) p_sys->param.i_sps_id = val.i_int;
#endif

    var_Get( p_enc, SOUT_CFG_PREFIX "aud", &val );
    if( val.b_bool ) p_sys->param.b_aud = val.b_bool;

    var_Get( p_enc, SOUT_CFG_PREFIX "keyint", &val );