diff options
| author | John Koleszar <jkoleszar@google.com> | 2011-04-25 11:44:50 -0400 |
|---|---|---|
| committer | John Koleszar <jkoleszar@google.com> | 2011-04-25 13:47:14 -0400 |
| commit | aa926fbd273c7d62d43487f73f2f3cdce7bec5a8 (patch) | |
| tree | 1a0fbae05abc5af5a5806291e5b14a0f70478616 /vp8/encoder | |
| parent | aeca599087409c83cf4e24a59b5830a380e22327 (diff) | |
| download | libvpx-aa926fbd273c7d62d43487f73f2f3cdce7bec5a8.tar libvpx-aa926fbd273c7d62d43487f73f2f3cdce7bec5a8.tar.gz libvpx-aa926fbd273c7d62d43487f73f2f3cdce7bec5a8.tar.bz2 libvpx-aa926fbd273c7d62d43487f73f2f3cdce7bec5a8.zip | |
Add rc_max_intra_bitrate_pct control
Adds a control to limit the maximum size of a keyframe, as a function of
the per-frame bitrate. See this thread[1] for more detailed discussion:
[1]: http://groups.google.com/a/webmproject.org/group/codec-devel/browse_thread/thread/271b944a5e47ca38
Change-Id: I7337707642eb8041d1e593efc2edfdf66db02a94
Diffstat (limited to 'vp8/encoder')
| -rw-r--r-- | vp8/encoder/onyx_if.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c index 7461edca4..cbaab5fb0 100644 --- a/vp8/encoder/onyx_if.c +++ b/vp8/encoder/onyx_if.c @@ -2704,6 +2704,19 @@ static int pick_frame_size(VP8_COMP *cpi) } } + /* Apply limits on keyframe target. + * + * TODO: move this after consolidating + * vp8_calc_iframe_target_size() and vp8_calc_auto_iframe_target_size() + */ + if (cm->frame_type == KEY_FRAME && cpi->oxcf.rc_max_intra_bitrate_pct) + { + unsigned int max_rate = cpi->av_per_frame_bandwidth + * cpi->oxcf.rc_max_intra_bitrate_pct / 100; + + if (cpi->this_frame_target > max_rate) + cpi->this_frame_target = max_rate; + } return 1; } |