[FFmpeg-devel] [PATCH 3/7] Set timebase in the ffplay input and output filters.

[Stefano Sabatini]

---
 ffplay.c |   28 ++++++++++++++++++++++++++--
 1 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/ffplay.c b/ffplay.c
index 9927006..5d6e2d1 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -1755,6 +1755,7 @@ static int input_config_props(AVFilterLink *link)
 
     link->w = c->width;
     link->h = c->height;
+    link->time_base = priv->is->video_st->time_base;
 
     return 0;
 }
@@ -1778,8 +1779,29 @@ static AVFilter input_filter =
                                   { .name = NULL }},
 };
 
-static void output_end_frame(AVFilterLink *link)
+static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
 {
+    FilterPriv *priv = ctx->priv;
+    if (!opaque) return AVERROR(EINVAL);
+
+    priv->is = opaque;
+    return 0;
+}
+
+static void output_end_frame(AVFilterLink *inlink)
+{
+    AVFilterContext *ctx = inlink->dst;
+    FilterPriv *priv = ctx->priv;
+    AVRational dst_time_base = priv->is->video_st->time_base;
+
+    if (av_cmp_q(inlink->time_base, dst_time_base)) {
+        int64_t pts1 = inlink->cur_buf->pts;
+        inlink->cur_buf->pts = av_rescale_q(pts1, inlink->time_base, dst_time_base);
+        av_log(ctx, AV_LOG_DEBUG,
+               "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
+               inlink->time_base.num, inlink->time_base.den, pts1,
+               dst_time_base.num, dst_time_base.den, inlink->cur_buf->pts);
+    }
 }
 
 static int output_query_formats(AVFilterContext *ctx)
@@ -1814,7 +1836,9 @@ static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
 static AVFilter output_filter =
 {
     .name      = "ffplay_output",
+    .priv_size = sizeof(FilterPriv),
 
+    .init      = output_init,
     .query_formats = output_query_formats,
 
     .inputs    = (AVFilterPad[]) {{ .name          = "default",
@@ -1846,7 +1870,7 @@ static int video_thread(void *arg)
     if (avfilter_open(&filt_out, &output_filter, "out") < 0) goto the_end;
 
     if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
-    if(avfilter_init_filter(filt_out, NULL, frame))          goto the_end;
+    if(avfilter_init_filter(filt_out, NULL, is))             goto the_end;
 
 
     if(vfilters) {
-- 
1.7.1