[FFmpeg-cvslog] avcodec/mediacodecenc: Add operating_rate option

[Zhao Zhili]

ffmpeg | branch: master | Zhao Zhili <zhilizhao at tencent.com> | Wed Nov  6 20:31:21 2024 +0800| [fa2ff5effcf3767fadbfcde1b8e826f1acb505c1] | committer: Zhao Zhili

avcodec/mediacodecenc: Add operating_rate option

For example, with
./ffmpeg -operating_rate 400 -hwaccel mediacodec -i test.mp4 -an \
  -c:v h264_mediacodec -operating_rate 400 -b:v 5M -f null -
The transcoding speed is 254 FPS.
Without -operating_rate on dec/enc, the speed is 148 FPS.
With -operating_rate on decoder only, the speed is 239 FPS.

Signed-off-by: Zhao Zhili <zhilizhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fa2ff5effcf3767fadbfcde1b8e826f1acb505c1
---

 libavcodec/mediacodecenc.c | 7 ++++++-
 libavcodec/version.h       | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/libavcodec/mediacodecenc.c b/libavcodec/mediacodecenc.c
index 3880ea2fe9..e79fe29964 100644
--- a/libavcodec/mediacodecenc.c
+++ b/libavcodec/mediacodecenc.c
@@ -76,6 +76,8 @@ typedef struct MediaCodecEncContext {
     int level;
     int pts_as_dts;
     int extract_extradata;
+    // Ref. MediaFormat KEY_OPERATING_RATE
+    int operating_rate;
 } MediaCodecEncContext;
 
 enum {
@@ -354,6 +356,8 @@ static av_cold int mediacodec_init(AVCodecContext *avctx)
     }
     if (s->pts_as_dts == -1)
         s->pts_as_dts = avctx->max_b_frames <= 0;
+    if (s->operating_rate > 0)
+        ff_AMediaFormat_setInt32(format, "operating-rate", s->operating_rate);
 
     ret = ff_AMediaCodec_getConfigureFlagEncode(s->codec);
     ret = ff_AMediaCodec_configure(s->codec, format, s->window, NULL, ret);
@@ -764,7 +768,8 @@ static const AVCodecHWConfigInternal *const mediacodec_hw_configs[] = {
     { "pts_as_dts", "Use PTS as DTS. It is enabled automatically if avctx max_b_frames <= 0, "              \
                     "since most of Android devices don't output B frames by default.",                      \
                     OFFSET(pts_as_dts), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE },                         \
-
+    { "operating_rate", "The desired operating rate that the codec will need to operate at, zero for unspecified",    \
+            OFFSET(operating_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, VE },                                          \
 
 #define MEDIACODEC_ENCODER_CLASS(name)              \
 static const AVClass name ## _mediacodec_class = {  \
diff --git a/libavcodec/version.h b/libavcodec/version.h
index a744e7469f..aa3a484c51 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -30,7 +30,7 @@
 #include "version_major.h"
 
 #define LIBAVCODEC_VERSION_MINOR  25
-#define LIBAVCODEC_VERSION_MICRO 100
+#define LIBAVCODEC_VERSION_MICRO 101
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \