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libvpxenc: use libvpx's own defaults for some parameters

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Specifically, qmin/qmax, gop_size and keyint_min.

Fixes bug 47.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Luca Barbato 2011-09-30 12:15:59 +02:00 committed by Anton Khirnov
parent e3eb015ba4
commit 6450f26c9a
1 changed files with 16 additions and 5 deletions
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21
libavcodec/libvpxenc.c
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@ -249,9 +249,10 @@ static av_cold int vp8_init(AVCodecContext *avctx)
enccfg.rc_end_usage = VPX_CBR;
enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
AV_ROUND_NEAR_INF);
enccfg.rc_min_quantizer = avctx->qmin;
enccfg.rc_max_quantizer = avctx->qmax;
if (avctx->qmin > 0)
enccfg.rc_min_quantizer = avctx->qmin;
if (avctx->qmax > 0)
enccfg.rc_max_quantizer = avctx->qmax;
enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
//0-100 (0 => CBR, 100 => VBR)
@ -271,9 +272,10 @@ static av_cold int vp8_init(AVCodecContext *avctx)
enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
//_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
if (avctx->keyint_min == avctx->gop_size)
if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
enccfg.kf_min_dist = avctx->keyint_min;
enccfg.kf_max_dist = avctx->gop_size;
if (avctx->gop_size >= 0)
enccfg.kf_max_dist = avctx->gop_size;
if (enccfg.g_pass == VPX_RC_FIRST_PASS)
enccfg.g_lag_in_frames = 0;
@ -552,6 +554,14 @@ static const AVClass class = {
.version = LIBAVUTIL_VERSION_INT,
};
static const AVCodecDefault defaults[] = {
{ "qmin", "-1" },
{ "qmax", "-1" },
{ "g", "-1" },
{ "keyint_min", "-1" },
{ NULL },
};
AVCodec ff_libvpx_encoder = {
.name = "libvpx",
.type = AVMEDIA_TYPE_VIDEO,
@ -564,4 +574,5 @@ AVCodec ff_libvpx_encoder = {
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
.priv_class = &class,
.defaults = defaults,
};