Signed-off-by: James Almer <jamr...@gmail.com>
---
libavcodec/libx264.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index f5517ad080..d2adfa7bc5 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -769,6 +769,32 @@ static void X264_flush(AVCodecContext *avctx)
x4->sei_size = -x4->sei_size;
}
+static av_cold int X264_reconf(AVCodecContext *avctx, AVDictionary **dict)
+{
+ static const AVOption global_opts[] = {
+ { "aspect", "sample aspect ratio", offsetof(AVCodecContext,
sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10,
AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM},
+ { "sar", "sample aspect ratio", offsetof(AVCodecContext,
sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10,
AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM},
+ { "bufsize", "set ratecontrol buffer size (in bits)",
offsetof(AVCodecContext, rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = 0 },
INT_MIN, INT_MAX, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM},
+ { "b", "set bitrate (in bits/s)", offsetof(AVCodecContext, bit_rate),
AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, AV_OPT_FLAG_VIDEO_PARAM |
AV_OPT_FLAG_ENCODING_PARAM},
+ { NULL },
+ };
+ static const AVOption private_opts[] = {
+ { "crf", "Select the quality for constant quality mode",
offsetof(X264Context, crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX,
AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
+ { "crf_max", "In CRF mode, prevents VBV from lowering quality beyond
this point.", offsetof(X264Context, crf_max), AV_OPT_TYPE_FLOAT, {.dbl = -1 },
-1, FLT_MAX, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
+ { "qp", "Constant quantization parameter rate control method",
offsetof(X264Context, cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX,
AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
+ { NULL },
+ };
+ int ret;
+
+ ret = ff_encode_reconf_parse_dict(avctx, global_opts, private_opts, dict);
+ if (ret < 0)
+ return ret;
+
+ reconfig_encoder(avctx);
+
+ return 0;
+}
+
static av_cold int X264_close(AVCodecContext *avctx)
{
X264Context *x4 = avctx->priv_data;
@@ -1634,6 +1660,7 @@ const FFCodec ff_libx264_encoder = {
AV_CODEC_CAP_OTHER_THREADS |
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE |
AV_CODEC_CAP_ENCODER_FLUSH |
+ AV_CODEC_CAP_RECONF |
AV_CODEC_CAP_ENCODER_RECON_FRAME,
.p.priv_class = &x264_class,
.p.wrapper_name = "libx264",
@@ -1641,6 +1668,7 @@ const FFCodec ff_libx264_encoder = {
.init = X264_init,
FF_CODEC_ENCODE_CB(X264_frame),
.flush = X264_flush,
+ .reconf = X264_reconf,
.close = X264_close,
.defaults = x264_defaults,
.p.pix_fmts = pix_fmts_all,
--
2.48.1
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