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avcodec/mediacodecenc: set quality in cq mode 

From AOSP doc, these values are device and codec specific, but lower
values generally result in more efficient (smaller-sized) encoding.

For example, global_quality 50 on Pixel 6 results a 1080P 30 FPS
HEVC with 3744 kb/s, while global_quality 80 results 28178 kb/s.

Fix #10689

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
(cherry picked from commit 287e22f745)
This commit is contained in:
Zhao Zhili 2023-12-17 20:50:53 +08:00
parent 9593b727e2
commit f914c18de5
1 changed files with 4 additions and 1 deletions
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5
libavcodec/mediacodecenc.c
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@ -268,8 +268,11 @@ static av_cold int mediacodec_init(AVCodecContext *avctx)
if (avctx->bit_rate)
ff_AMediaFormat_setInt32(format, "bitrate", avctx->bit_rate);
if (s->bitrate_mode >= 0)
if (s->bitrate_mode >= 0) {
ff_AMediaFormat_setInt32(format, "bitrate-mode", s->bitrate_mode);
if (s->bitrate_mode == BITRATE_MODE_CQ && avctx->global_quality > 0)
ff_AMediaFormat_setInt32(format, "quality", avctx->global_quality);
}
// frame-rate and i-frame-interval are required to configure codec
if (avctx->framerate.num >= avctx->framerate.den && avctx->framerate.den > 0) {
s->fps = avctx->framerate.num / avctx->framerate.den;