From 302aecd06a07ee4eac7486167992fa18f0447232 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 26 Apr 2023 00:11:59 +0200
Subject: fftools/ffmpeg: drop InputStream.[next_]pts

They are no longer used for anything.
---
 fftools/ffmpeg.c       | 20 +-------------------
 fftools/ffmpeg.h       |  4 ----
 fftools/ffmpeg_demux.c |  1 -
 3 files changed, 1 insertion(+), 24 deletions(-)

(limited to 'fftools')

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 3a0d1b4559..e766301535 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -984,8 +984,6 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
 
     /* increment next_dts to use for the case where the input stream does not
        have timestamps or there are multiple frames in the packet */
-    ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
-                     decoded_frame->sample_rate;
     ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
                      decoded_frame->sample_rate;
 
@@ -1127,10 +1125,7 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_
                                 ist->last_frame_pts + ist->last_frame_duration_est;
 
     if(best_effort_timestamp != AV_NOPTS_VALUE) {
-        int64_t ts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
-
-        if (ts != AV_NOPTS_VALUE)
-            ist->next_pts = ist->pts = ts;
+        decoded_frame->pts = best_effort_timestamp;
     }
 
     // update timestamp history
@@ -1406,7 +1401,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
     if (!ist->saw_first_ts) {
         ist->first_dts =
         ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
-        ist->pts = 0;
         if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
             ist->first_dts =
             ist->dts += av_rescale_q(pkt->pts, pkt->time_base, AV_TIME_BASE_Q);
@@ -1416,8 +1410,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
 
     if (ist->next_dts == AV_NOPTS_VALUE)
         ist->next_dts = ist->dts;
-    if (ist->next_pts == AV_NOPTS_VALUE)
-        ist->next_pts = ist->pts;
 
     if (pkt) {
         av_packet_unref(avpkt);
@@ -1428,8 +1420,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
 
     if (pkt && pkt->dts != AV_NOPTS_VALUE) {
         ist->next_dts = ist->dts = av_rescale_q(pkt->dts, pkt->time_base, AV_TIME_BASE_Q);
-        if (par->codec_type != AVMEDIA_TYPE_VIDEO)
-            ist->pts = ist->dts;
     }
 
     // while we have more to decode or while the decoder did output something on EOF
@@ -1439,7 +1429,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
         int got_output = 0;
         int decode_failed = 0;
 
-        ist->pts = ist->next_pts;
         ist->dts = ist->next_dts;
 
         switch (par->codec_type) {
@@ -1469,13 +1458,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
                     ist->next_dts = AV_NOPTS_VALUE;
             }
 
-            if (got_output) {
-                if (duration_pts > 0) {
-                    ist->next_pts += av_rescale_q(duration_pts, ist->st->time_base, AV_TIME_BASE_Q);
-                } else {
-                    ist->next_pts += duration_dts;
-                }
-            }
             av_packet_unref(avpkt);
             break;
         case AVMEDIA_TYPE_SUBTITLE:
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index c4abf89b58..b6389d7f99 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -366,10 +366,6 @@ typedef struct InputStream {
     int64_t first_dts;       ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
     int64_t       dts;       ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
 
-    /* predicted pts of the next decoded frame, in AV_TIME_BASE */
-    int64_t       next_pts;
-    int64_t       pts;       ///< current pts of the decoded frame  (in AV_TIME_BASE units)
-
     // pts/estimated duration of the last decoded frame
     // * in decoder timebase for video,
     // * in last_frame_tb (may change during decoding) for audio
diff --git a/fftools/ffmpeg_demux.c b/fftools/ffmpeg_demux.c
index f8d95d1de6..26426c7ac1 100644
--- a/fftools/ffmpeg_demux.c
+++ b/fftools/ffmpeg_demux.c
@@ -744,7 +744,6 @@ static void add_input_streams(const OptionsContext *o, Demuxer *d)
         st->discard  = AVDISCARD_ALL;
         ist->nb_samples = 0;
         ist->first_dts = AV_NOPTS_VALUE;
-        ist->next_pts  = AV_NOPTS_VALUE;
         ist->next_dts  = AV_NOPTS_VALUE;
 
         ds->min_pts = INT64_MAX;
-- 
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