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x264enc: Avoid format decision per frame

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Avoid switch/case per frame for format decision and detect the format
only if where it could be changed. Note that, whenever encoder->input_state
is changed, gst_x264_enc_init_encoder() is called.

https://bugzilla.gnome.org/show_bug.cgi?id=797164
This commit is contained in:
Seungha Yang 2018-09-18 21:43:14 +09:00 committed by Tim-Philipp Müller
parent 6c37b359ee
commit 7e63943361
2 changed files with 7 additions and 4 deletions
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8
ext/x264/gstx264enc.c
View file

@ -1582,7 +1582,8 @@ gst_x264_enc_init_encoder (GstX264Enc * encoder)
encoder->x264param.i_bitdepth = GST_VIDEO_INFO_COMP_DEPTH (info, 0);
#endif
encoder->x264param.i_csp =
gst_x264_enc_gst_to_x264_video_format (info->finfo->format, NULL);
gst_x264_enc_gst_to_x264_video_format (info->finfo->format,
&encoder->x264_nplanes);
if (info->fps_d == 0 || info->fps_n == 0) {
/* No FPS so must use VFR
* This raises latency apparently see http://mewiki.project357.com/wiki/X264_Encoding_Suggestions */
@ -2378,7 +2379,7 @@ gst_x264_enc_handle_frame (GstVideoEncoder * video_enc,
x264_picture_t pic_in;
gint i_nal, i;
FrameData *fdata;
gint nplanes = 0;
gint nplanes = encoder->x264_nplanes;
if (G_UNLIKELY (encoder->x264enc == NULL))
goto not_inited;
@ -2393,8 +2394,7 @@ gst_x264_enc_handle_frame (GstVideoEncoder * video_enc,
if (!fdata)
goto invalid_frame;
pic_in.img.i_csp =
gst_x264_enc_gst_to_x264_video_format (info->finfo->format, &nplanes);
pic_in.img.i_csp = encoder->x264param.i_csp;
pic_in.img.i_plane = nplanes;
for (i = 0; i < nplanes; i++) {
pic_in.img.plane[i] = GST_VIDEO_FRAME_COMP_DATA (&fdata->vframe, i);

3
ext/x264/gstx264enc.h
View file

@ -123,6 +123,9 @@ struct _GstX264Enc
const gchar *peer_profile;
gboolean peer_intra_profile;
gint peer_level_idc;
/* cached values to set x264_picture_t */
gint x264_nplanes;
};
struct _GstX264EncClass