[FFmpeg-devel] [PATCH] avfilter/af_whisper: fix srt index (PR #20567)

[Vittorio Palmisano via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #20567 opened by Vittorio Palmisano (vpalmisano)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20567
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20567.patch

avfilter/af_whisper: fix srt index

The srt index should be incremented for each segment.


>From 8af6c4f3d10ec026724469c1c5fbd298e2b086a2 Mon Sep 17 00:00:00 2001
From: Vittorio Palmisano <vpalmisano@gmail.com>
Date: Sun, 21 Sep 2025 15:33:17 +0200
Subject: [PATCH] avfilter/af_whisper: fix srt index

The srt index should be incremented for each segment.
---
 libavfilter/af_whisper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavfilter/af_whisper.c b/libavfilter/af_whisper.c
index 663fe446bb..6b7881bca4 100644
--- a/libavfilter/af_whisper.c
+++ b/libavfilter/af_whisper.c
@@ -251,6 +251,8 @@ static void run_transcription(AVFilterContext *ctx, AVFrame *frame, int samples)
                      (start_t / 60000) % 60, (start_t / 1000) % 60,
                      start_t % 1000, end_t / 3600000, (end_t / 60000) % 60,
                      (end_t / 1000) % 60, end_t % 1000, text_cleaned);
+
+                wctx->index++;
             } else if (!av_strcasecmp(wctx->format, "json")) {
                 buf = av_asprintf("{\"start\":%ld,\"end\":%ld,\"text\":\"%s\"}\n", start_t, end_t, text_cleaned);
             } else
@@ -265,8 +267,6 @@ static void run_transcription(AVFilterContext *ctx, AVFrame *frame, int samples)
         av_freep(&text_cleaned);
     }
 
-    wctx->index++;
-
     AVDictionary **metadata = &frame->metadata;
     if (metadata && segments_text) {
         av_dict_set(metadata, "lavfi.whisper.text", segments_text, 0);
-- 
2.49.1

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