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/*
* LGPL
*/
/*
* typical parsed command line:
* msmpeg4:bitrate=720000:qmax=16
*
*/
#include "avcodec.h"
/*
* possible extension - use for decoder options
* - for given codec names filter only correct
* options given (could be passed with 'str')
*/
/**
* \param avctx where to store parsed results
* \param str string with options for parsing
* \param config allocated avc_config_t for external parsing
* i.e. external program might learn about all available
* options for given codec
**/
void avcodec_getopt(AVCodecContext* avctx, char* str, avc_config_t** config)
{
AVCodecContext avctx_tmp;
AVCodecContext* ctx = (avctx) ? avctx : &avctx_tmp;
static const char* class_h263 = ",msmpeg4,";
//"huffyuv,wmv1,msmpeg4v2,msmpeg4,mpeg4,mpeg1,mpeg1video,mjpeg,rv10,h263,h263p"
avc_config_t cnf[] =
{
// FIXME: sorted by importance!!!
// expert option should follow more common ones
{
"bitrate", "desired video bitrate",
FF_CONF_TYPE_INT, &ctx->bit_rate, 4, 240000000, 800000, NULL, class_h263
}, {
"vhq", "very high quality",
FF_CONF_TYPE_FLAG, &ctx->flags, 0, CODEC_FLAG_HQ, 0, NULL, class_h263
}, {
"ratetol", "number of bits the bitstream is allowed to diverge from the reference"
"the reference can be CBR (for CBR pass1) or VBR (for pass2)",
FF_CONF_TYPE_INT, &ctx->bit_rate_tolerance, 4, 240000000, 8000, NULL, class_h263
}, {
"qmin", "minimum quantizer", FF_CONF_TYPE_INT, &ctx->qmin, 1, 31, 2, NULL, class_h263
}, {
"qmax", "maximum qunatizer", FF_CONF_TYPE_INT, &ctx->qmax, 1, 31, 31, NULL, class_h263
}, {
"rc_eq", "rate control equation",
FF_CONF_TYPE_STRING, &ctx->rc_eq, 0, 0, 0, "tex^qComp" /* FILLME options */, class_h263
}, {
"rc_minrate", "rate control minimum bitrate",
FF_CONF_TYPE_INT, &ctx->rc_min_rate, 4, 24000000, 0, NULL, class_h263
}, {
"rc_maxrate", "rate control maximum bitrate",
FF_CONF_TYPE_INT, &ctx->rc_max_rate, 4, 24000000, 0, NULL, class_h263
}, {
"psnr", "calculate PSNR of compressed frames",
FF_CONF_TYPE_FLAG, &ctx->flags, 0, CODEC_FLAG_PSNR, 0, NULL, class_h263
}, {
"rc_override", "ratecontrol override (=startframe,endframe,qscale,quality_factor)",
FF_CONF_TYPE_RCOVERIDE, &ctx->rc_override, 0, 0, 0, NULL, class_h263
},
{ NULL, NULL, 0, NULL, 0, 0, 0, NULL, NULL }
};
if (config)
{
*config = malloc(sizeof(cnf));
if (*config)
memcpy(*config, cnf, sizeof(cnf));
}
}
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