From b56e029bdc9a68ed9decc7d3ad77e15aa5f4071d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 28 Feb 2013 20:24:05 +0100 Subject: [PATCH] avformat/lavfi: force probesize to cover at least 30 frames This ensures that fps and other values are estimated correctly, the probesize also is intended to limit disk/protocol reads which does not apply to lavfi inputs at all. Fixes Ticket1051 Something similar could be usefull to other input devices Signed-off-by: Michael Niedermayer --- libavdevice/lavfi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavdevice/lavfi.c b/libavdevice/lavfi.c index e4cacb640e..3b6f0c382c 100644 --- a/libavdevice/lavfi.c +++ b/libavdevice/lavfi.c @@ -282,6 +282,10 @@ av_cold static int lavfi_read_header(AVFormatContext *avctx) st->codec->height = link->h; st ->sample_aspect_ratio = st->codec->sample_aspect_ratio = link->sample_aspect_ratio; + avctx->probesize = FFMAX(avctx->probesize, + link->w * link->h * + av_get_padded_bits_per_pixel(av_pix_fmt_desc_get(link->format)) * + 30); } else if (link->type == AVMEDIA_TYPE_AUDIO) { st->codec->codec_id = av_get_pcm_codec(link->format, -1); st->codec->channels = av_get_channel_layout_nb_channels(link->channel_layout);