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vp8enc: fix target bitrate config with libvpx 1.1.0

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libvpx 1.1.0 disallows a bitrate of 0, which was used by
vp8enc as a default value.

Instead, we use the default libvpx bitrate, scaled to our
video size, if no bitrate was specified.

This fixes encoding VP8 video with libvpx 1.1.0.

https://bugzilla.gnome.org/show_bug.cgi?id=676245
This commit is contained in:
Vincent Penquerc'h 2012-05-18 12:46:55 +01:00 committed by Sebastian Dröge
parent f75a5ff893
commit 34deb5b703
1 changed files with 5 additions and 1 deletions
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6
ext/vp8/gstvp8enc.c
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@ -734,6 +734,11 @@ gst_vp8_enc_set_format (GstVideoEncoder * video_encoder,
return FALSE;
}
/* Scale default bitrate to our size */
cfg.rc_target_bitrate = gst_util_uint64_scale (cfg.rc_target_bitrate,
GST_VIDEO_INFO_WIDTH (info) * GST_VIDEO_INFO_HEIGHT (info),
cfg.g_w * cfg.g_h);
cfg.g_w = GST_VIDEO_INFO_WIDTH (info);
cfg.g_h = GST_VIDEO_INFO_HEIGHT (info);
cfg.g_timebase.num = GST_VIDEO_INFO_FPS_D (info);
@ -757,7 +762,6 @@ gst_vp8_enc_set_format (GstVideoEncoder * video_encoder,
} else {
cfg.rc_min_quantizer = (gint) (63 - encoder->quality * 6.2);
cfg.rc_max_quantizer = (gint) (63 - encoder->quality * 6.2);
cfg.rc_target_bitrate = encoder->bitrate;
}
cfg.rc_dropframe_thresh = encoder->drop_frame;
cfg.rc_resize_allowed = encoder->resize_allowed;