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fftools/ffmpeg: rename OutputStream.sync_opts to next_pts 

The current name is confusing.
This commit is contained in:
Anton Khirnov 2022-09-04 14:38:52 +02:00
parent 3c0f532cbc
commit 29188f9c62
2 changed files with 15 additions and 13 deletions
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22
fftools/ffmpeg.c
View File

@ -1044,12 +1044,12 @@ static void do_audio_out(OutputFile *of, OutputStream *ost,
adjust_frame_pts_to_encoder_tb(of, ost, frame);
if (!check_recording_time(ost, ost->sync_opts, ost->enc_ctx->time_base))
if (!check_recording_time(ost, ost->next_pts, ost->enc_ctx->time_base))
return;
if (frame->pts == AV_NOPTS_VALUE)
frame->pts = ost->sync_opts;
ost->sync_opts = frame->pts + frame->nb_samples;
frame->pts = ost->next_pts;
ost->next_pts = frame->pts + frame->nb_samples;
ret = submit_encode_frame(of, ost, frame);
if (ret < 0 && ret != AVERROR_EOF)
@ -1230,7 +1230,9 @@ static void do_video_out(OutputFile *of,
ost->last_nb0_frames[1],
ost->last_nb0_frames[2]);
} else {
delta0 = sync_ipts - ost->sync_opts; // delta0 is the "drift" between the input frame (next_picture) and where it would fall in the output.
/* delta0 is the "drift" between the input frame (next_picture) and
* where it would fall in the output. */
delta0 = sync_ipts - ost->next_pts;
delta = delta0 + duration;
/* by default, we output a single frame */
@ -1245,7 +1247,7 @@ static void do_video_out(OutputFile *of,
av_log(NULL, AV_LOG_VERBOSE, "Past duration %f too large\n", -delta0);
} else
av_log(NULL, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
sync_ipts = ost->sync_opts;
sync_ipts = ost->next_pts;
duration += delta0;
delta0 = 0;
}
@ -1256,7 +1258,7 @@ static void do_video_out(OutputFile *of,
av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
delta = duration;
delta0 = 0;
ost->sync_opts = llrint(sync_ipts);
ost->next_pts = llrint(sync_ipts);
}
case VSYNC_CFR:
// FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
@ -1275,13 +1277,13 @@ static void do_video_out(OutputFile *of,
if (delta <= -0.6)
nb_frames = 0;
else if (delta > 0.6)
ost->sync_opts = llrint(sync_ipts);
ost->next_pts = llrint(sync_ipts);
next_picture->duration = duration;
break;
case VSYNC_DROP:
case VSYNC_PASSTHROUGH:
next_picture->duration = duration;
ost->sync_opts = llrint(sync_ipts);
ost->next_pts = llrint(sync_ipts);
break;
default:
av_assert0(0);
@ -1335,7 +1337,7 @@ static void do_video_out(OutputFile *of,
if (!in_picture)
return;
in_picture->pts = ost->sync_opts;
in_picture->pts = ost->next_pts;
if (!check_recording_time(ost, in_picture->pts, ost->enc_ctx->time_base))
return;
@ -1347,7 +1349,7 @@ static void do_video_out(OutputFile *of,
if (ret < 0 && ret != AVERROR_EOF)
exit_program(1);
ost->sync_opts++;
ost->next_pts++;
ost->vsync_frame_number++;
}

6
fftools/ffmpeg.h
View File

@ -492,9 +492,9 @@ typedef struct OutputStream {
AVStream *st; /* stream in the output file */
/* number of frames emitted by the video-encoding sync code */
int64_t vsync_frame_number;
/* input pts and corresponding output pts
for A/V sync */
int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
/* predicted pts of the next frame to be encoded
* audio/video encoding only */
int64_t next_pts;
/* dts of the last packet sent to the muxing queue, in AV_TIME_BASE_Q */
int64_t last_mux_dts;
/* pts of the last frame received from the filters, in AV_TIME_BASE_Q */