[FFmpeg-devel] [PATCH] avformat/pcm: decrease delay when reading PCM streams.
Hendrik Leppkes
h.leppkes at gmail.com
Tue Feb 13 17:09:50 EET 2018
On Tue, Feb 13, 2018 at 3:11 PM, Philipp M. Scholl <pscholl at bawue.de> wrote:
> The blocksize of the PCM decoder is hard-coded. This creates
> unnecessary delay when reading low-rate (<100Hz) streams. This creates
> issues when multiplexing multiple streams, since other inputs are only
> opened/read after a low-rate input block was completely read.
>
> This patch decreases the blocksize for low-rate inputs, so
> approximately a block is read every 10ms. This decreases the startup
> delay when multiplexing inputs with different rates.
>
> Signed-off-by: Philipp M. Scholl <pscholl at bawue.de>
> ---
> libavformat/pcm.c | 41 +++++++++++++++++++++++++++----
> tests/Makefile | 1 +
> tests/ref/lavf/ast | 4 +--
> tests/ref/lavf/mov | 24 +++++++++---------
> tests/ref/lavf/smjpeg | 6 ++---
> tests/ref/lavf/voc | 4 +--
> tests/ref/lavf/voc_s16 | 4 +--
> tests/ref/seek/acodec-pcm-f32be | 54 ++++++++++++++++++++---------------------
> tests/ref/seek/acodec-pcm-f64be | 54 ++++++++++++++++++++---------------------
> tests/ref/seek/lavf-alaw | 44 ++++++++++++++++-----------------
> tests/ref/seek/lavf-au | 30 +++++++++++------------
> tests/ref/seek/lavf-mov | 44 ++++++++++++++++-----------------
> tests/ref/seek/lavf-mulaw | 44 ++++++++++++++++-----------------
> tests/ref/seek/lavf-voc | 22 ++++++++---------
> 14 files changed, 204 insertions(+), 172 deletions(-)
>
> diff --git a/libavformat/pcm.c b/libavformat/pcm.c
> index 806f91b6b1..f0ea029633 100644
> --- a/libavformat/pcm.c
> +++ b/libavformat/pcm.c
> @@ -24,17 +24,48 @@
> #include "internal.h"
> #include "pcm.h"
>
> -#define RAW_SAMPLES 1024
> +#define RAW_SAMPLES 1024
> +
> +/*
> + * copied from https://stackoverflow.com/questions/2679815/previous-power-of-2
> + * computes the previous power of two.
> + */
> +static uint32_t flp2 (uint32_t x)
> +{
> + x = x | (x >> 1);
> + x = x | (x >> 2);
> + x = x | (x >> 4);
> + x = x | (x >> 8);
> + x = x | (x >> 16);
> + x = x - (x >> 1);
> + return x + (x == 0); /* if x is zero, return 1 */
> +}
I can't comment on the usefulness of the change as a whole, but we
have ff_clz for this.
>
> int ff_pcm_read_packet(AVFormatContext *s, AVPacket *pkt)
> {
> - int ret, size;
> + int i, ret, strmsize, readsize = INT_MAX;
> + AVCodecParameters *codec;
> +
> + /*
> + * recompute read size based on sample rate of the inputs, make sure
> + * to complete a read every 10ms by selecting the smallest sample rate
> + */
> + for (i=0; i < s->nb_streams; i++) {
> + codec = s->streams[i]->codecpar;
> + strmsize = codec->sample_rate / 100 * codec->block_align;
> + readsize = FFMIN(readsize, strmsize);
> + }
> +
> + /*
> + * clamp to RAW_SAMPLES if larger, and to previous power of two.
> + */
> + readsize = flp2(FFMIN(readsize,
> + RAW_SAMPLES * s->streams[0]->codecpar->block_align));
>
> - size= RAW_SAMPLES*s->streams[0]->codecpar->block_align;
> - if (size <= 0)
> + if (readsize <= 0)
> return AVERROR(EINVAL);
>
> - ret= av_get_packet(s->pb, pkt, size);
> + ret = av_get_packet(s->pb, pkt, readsize);
>
> pkt->flags &= ~AV_PKT_FLAG_CORRUPT;
> pkt->stream_index = 0;
> diff --git a/tests/Makefile b/tests/Makefile
> index 327e3f4420..9df0d7eff9 100644
> --- a/tests/Makefile
> +++ b/tests/Makefile
> @@ -1,3 +1,4 @@
> +PROGSSUF = _g
> THREADS = 1
> VREF = tests/vsynth1/00.pgm
> AREF = tests/data/asynth1.sw
> diff --git a/tests/ref/lavf/ast b/tests/ref/lavf/ast
> index 513c612e76..f01786720d 100644
> --- a/tests/ref/lavf/ast
> +++ b/tests/ref/lavf/ast
> @@ -1,3 +1,3 @@
> -07f5d23aa8bade984034f7005bd72947 *./tests/data/lavf/lavf.ast
> -177872 ./tests/data/lavf/lavf.ast
> +7b3e74233bb7399593316b9fced596fd *./tests/data/lavf/lavf.ast
> +182000 ./tests/data/lavf/lavf.ast
> ./tests/data/lavf/lavf.ast CRC=0xe61e3bd0
> diff --git a/tests/ref/lavf/mov b/tests/ref/lavf/mov
> index 2e1f24dfc6..57324f73f7 100644
> --- a/tests/ref/lavf/mov
> +++ b/tests/ref/lavf/mov
> @@ -1,15 +1,15 @@
> -a10d50f2679df92264e1fc21cb8be630 *./tests/data/lavf/lavf.mov
> -366449 ./tests/data/lavf/lavf.mov
> -./tests/data/lavf/lavf.mov CRC=0xbb2b949b
> -6258f70f974e3c802e01d02ac33c7bbd *./tests/data/lavf/lavf.mov
> -357539 ./tests/data/lavf/lavf.mov
> -./tests/data/lavf/lavf.mov CRC=0xbb2b949b
> -ba3b8b49e420510a0d417400dbedfc2d *./tests/data/lavf/lavf.mov
> -366621 ./tests/data/lavf/lavf.mov
> -./tests/data/lavf/lavf.mov CRC=0xa9793231
> -fd0e4de8e7f6d0c8c0681d7020f00f50 *./tests/data/lavf/lavf.mov
> -356921 ./tests/data/lavf/lavf.mov
> -./tests/data/lavf/lavf.mov CRC=0xbb2b949b
> +fc5707661e4fbfec0613202feacdc005 *./tests/data/lavf/lavf.mov
> +371609 ./tests/data/lavf/lavf.mov
> +./tests/data/lavf/lavf.mov CRC=0x1e04949b
> +f901c132467eaaa3d0b0620418b8ce54 *./tests/data/lavf/lavf.mov
> +357443 ./tests/data/lavf/lavf.mov
> +./tests/data/lavf/lavf.mov CRC=0x1e04949b
> +0cb4720f248243fa7180a83b9aaa96d7 *./tests/data/lavf/lavf.mov
> +366489 ./tests/data/lavf/lavf.mov
> +./tests/data/lavf/lavf.mov CRC=0x10a43231
> +8cd0311e2e080675db3913a312fce2ce *./tests/data/lavf/lavf.mov
> +356825 ./tests/data/lavf/lavf.mov
> +./tests/data/lavf/lavf.mov CRC=0x1e04949b
> ebca72c186a4f3ba9bb17d9cb5b74fef *./tests/data/lavf/lavf.mp4
> 312457 ./tests/data/lavf/lavf.mp4
> ./tests/data/lavf/lavf.mp4 CRC=0x9d9a638a
> diff --git a/tests/ref/lavf/smjpeg b/tests/ref/lavf/smjpeg
> index fb8c6542fa..3ae3ffff65 100644
> --- a/tests/ref/lavf/smjpeg
> +++ b/tests/ref/lavf/smjpeg
> @@ -1,3 +1,3 @@
> -3fe90213ac4f5275eb85ad0a4e4bdb44 *./tests/data/lavf/lavf.smjpeg
> -728642 ./tests/data/lavf/lavf.smjpeg
> -./tests/data/lavf/lavf.smjpeg CRC=0x54bf6147
> +5df56884e1bd4aad5a26941c3ddc8196 *./tests/data/lavf/lavf.smjpeg
> +730190 ./tests/data/lavf/lavf.smjpeg
> +./tests/data/lavf/lavf.smjpeg CRC=0xde196147
> diff --git a/tests/ref/lavf/voc b/tests/ref/lavf/voc
> index ded8af7227..b543a051fe 100644
> --- a/tests/ref/lavf/voc
> +++ b/tests/ref/lavf/voc
> @@ -1,3 +1,3 @@
> -bb5ad96a5e1b35683d50bf18115db821 *./tests/data/lavf/lavf.voc
> -44305 ./tests/data/lavf/lavf.voc
> +6a101a05377ddd79aff95c3606810818 *./tests/data/lavf/lavf.voc
> +44821 ./tests/data/lavf/lavf.voc
> ./tests/data/lavf/lavf.voc CRC=0x298fd284
> diff --git a/tests/ref/lavf/voc_s16 b/tests/ref/lavf/voc_s16
> index d026090aff..ccdb6366b1 100644
> --- a/tests/ref/lavf/voc_s16
> +++ b/tests/ref/lavf/voc_s16
> @@ -1,3 +1,3 @@
> -db9fa22ff71992bd8b6cc80047223c92 *./tests/data/lavf/lavf.s16.voc
> -176615 ./tests/data/lavf/lavf.s16.voc
> +ed4a2fdb86c34ad7f6d9772fd8cdfab1 *./tests/data/lavf/lavf.s16.voc
> +177131 ./tests/data/lavf/lavf.s16.voc
> ./tests/data/lavf/lavf.s16.voc CRC=0xe61e3bd0
> diff --git a/tests/ref/seek/acodec-pcm-f32be b/tests/ref/seek/acodec-pcm-f32be
> index b838262b58..89c8e9d7a9 100644
> --- a/tests/ref/seek/acodec-pcm-f32be
> +++ b/tests/ref/seek/acodec-pcm-f32be
> @@ -1,53 +1,53 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st:-1 flags:1 ts: 1.894167
> -ret: 0 st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos: 668296 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos: 668296 size: 2048
> ret: 0 st: 0 flags:0 ts: 0.788345
> -ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 278160 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 278160 size: 2048
> ret: 0 st: 0 flags:1 ts:-0.317506
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st:-1 flags:0 ts: 2.576668
> -ret: 0 st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos: 909080 size: 8192
> +ret: 0 st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos: 909080 size: 2048
> ret: 0 st:-1 flags:1 ts: 1.470835
> -ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 518944 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 518944 size: 2048
> ret: 0 st: 0 flags:0 ts: 0.365011
> -ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 128808 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 128808 size: 2048
> ret: 0 st: 0 flags:1 ts:-0.740839
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st:-1 flags:0 ts: 2.153336
> -ret: 0 st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos: 759728 size: 8192
> +ret: 0 st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos: 759728 size: 2048
> ret: 0 st:-1 flags:1 ts: 1.047503
> -ret: 0 st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 369592 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 369592 size: 2048
> ret: 0 st: 0 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st: 0 flags:1 ts: 2.835828
> -ret: 0 st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:1000512 size: 8192
> +ret: 0 st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:1000512 size: 2048
> ret: 0 st:-1 flags:0 ts: 1.730004
> -ret: 0 st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos: 610376 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos: 610376 size: 2048
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 220240 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 220240 size: 2048
> ret: 0 st: 0 flags:0 ts:-0.481655
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st: 0 flags:1 ts: 2.412494
> -ret: 0 st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos: 851160 size: 8192
> +ret: 0 st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos: 851160 size: 2048
> ret: 0 st:-1 flags:0 ts: 1.306672
> -ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 461024 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 461024 size: 2048
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 70888 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 70888 size: 2048
> ret: 0 st: 0 flags:0 ts:-0.904989
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st: 0 flags:1 ts: 1.989184
> -ret: 0 st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos: 701816 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos: 701816 size: 2048
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 311672 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 311672 size: 2048
> ret: 0 st:-1 flags:1 ts:-0.222493
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> ret: 0 st: 0 flags:0 ts: 2.671678
> -ret: 0 st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos: 942600 size: 8192
> +ret: 0 st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos: 942600 size: 2048
> ret: 0 st: 0 flags:1 ts: 1.565850
> -ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 552464 size: 8192
> +ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 552464 size: 2048
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 162320 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 162320 size: 2048
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 8192
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 2048
> diff --git a/tests/ref/seek/acodec-pcm-f64be b/tests/ref/seek/acodec-pcm-f64be
> index 82223517d5..8b050e9914 100644
> --- a/tests/ref/seek/acodec-pcm-f64be
> +++ b/tests/ref/seek/acodec-pcm-f64be
> @@ -1,53 +1,53 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st:-1 flags:1 ts: 1.894167
> -ret: 0 st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos:1336560 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos:1336560 size: 4096
> ret: 0 st: 0 flags:0 ts: 0.788345
> -ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 556288 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 556288 size: 4096
> ret: 0 st: 0 flags:1 ts:-0.317506
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st:-1 flags:0 ts: 2.576668
> -ret: 0 st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos:1818128 size: 16384
> +ret: 0 st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos:1818128 size: 4096
> ret: 0 st:-1 flags:1 ts: 1.470835
> -ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos:1037856 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos:1037856 size: 4096
> ret: 0 st: 0 flags:0 ts: 0.365011
> -ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 257584 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 257584 size: 4096
> ret: 0 st: 0 flags:1 ts:-0.740839
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st:-1 flags:0 ts: 2.153336
> -ret: 0 st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos:1519424 size: 16384
> +ret: 0 st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos:1519424 size: 4096
> ret: 0 st:-1 flags:1 ts: 1.047503
> -ret: 0 st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 739152 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 739152 size: 4096
> ret: 0 st: 0 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st: 0 flags:1 ts: 2.835828
> -ret: 0 st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:2000992 size: 16384
> +ret: 0 st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:2000992 size: 4096
> ret: 0 st:-1 flags:0 ts: 1.730004
> -ret: 0 st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos:1220720 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos:1220720 size: 4096
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 440448 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 440448 size: 4096
> ret: 0 st: 0 flags:0 ts:-0.481655
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st: 0 flags:1 ts: 2.412494
> -ret: 0 st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos:1702288 size: 16384
> +ret: 0 st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos:1702288 size: 4096
> ret: 0 st:-1 flags:0 ts: 1.306672
> -ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 922016 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 922016 size: 4096
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 141744 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 141744 size: 4096
> ret: 0 st: 0 flags:0 ts:-0.904989
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st: 0 flags:1 ts: 1.989184
> -ret: 0 st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos:1403600 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos:1403600 size: 4096
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 623312 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 623312 size: 4096
> ret: 0 st:-1 flags:1 ts:-0.222493
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> ret: 0 st: 0 flags:0 ts: 2.671678
> -ret: 0 st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos:1885168 size: 16384
> +ret: 0 st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos:1885168 size: 4096
> ret: 0 st: 0 flags:1 ts: 1.565850
> -ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos:1104896 size: 16384
> +ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos:1104896 size: 4096
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 324608 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 324608 size: 4096
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 16384
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 4096
> diff --git a/tests/ref/seek/lavf-alaw b/tests/ref/seek/lavf-alaw
> index 4b1f8fbc02..e46de928a2 100644
> --- a/tests/ref/seek/lavf-alaw
> +++ b/tests/ref/seek/lavf-alaw
> @@ -1,53 +1,53 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:1 ts: 1.894167
> -ret: 0 st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos: 41766 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos: 41766 size: 128
> ret: 0 st: 0 flags:0 ts: 0.788345
> -ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 17383 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 17383 size: 128
> ret: 0 st: 0 flags:1 ts:-0.317506
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts: 2.576668
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.470835
> -ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 32432 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 32432 size: 128
> ret: 0 st: 0 flags:0 ts: 0.364989
> -ret: 0 st: 0 flags:1 dts: 0.364989 pts: 0.364989 pos: 8048 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.364989 pts: 0.364989 pos: 8048 size: 128
> ret: 0 st: 0 flags:1 ts:-0.740816
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts: 2.153336
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.047503
> -ret: 0 st: 0 flags:1 dts: 1.047483 pts: 1.047483 pos: 23097 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.047483 pts: 1.047483 pos: 23097 size: 128
> ret: 0 st: 0 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 2.835828
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.730004
> -ret: 0 st: 0 flags:1 dts: 1.730023 pts: 1.730023 pos: 38147 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.730023 pts: 1.730023 pos: 38147 size: 128
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 13763 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 13763 size: 128
> ret: 0 st: 0 flags:0 ts:-0.481678
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 2.412517
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.306672
> -ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 28812 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 28812 size: 128
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.200816 pts: 0.200816 pos: 4428 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.200816 pts: 0.200816 pos: 4428 size: 128
> ret: 0 st: 0 flags:0 ts:-0.904989
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 1.989161
> -ret: 0 st: 0 flags:1 dts: 1.989161 pts: 1.989161 pos: 43861 size: 239
> +ret: 0 st: 0 flags:1 dts: 1.989161 pts: 1.989161 pos: 43861 size: 128
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.883356 pts: 0.883356 pos: 19478 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.883356 pts: 0.883356 pos: 19478 size: 128
> ret: 0 st:-1 flags:1 ts:-0.222493
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:0 ts: 2.671655
> ret:-EOF
> ret: 0 st: 0 flags:1 ts: 1.565850
> -ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 34527 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 34527 size: 128
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 10143 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 10143 size: 128
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> diff --git a/tests/ref/seek/lavf-au b/tests/ref/seek/lavf-au
> index 8edce58f65..6ac6192738 100644
> --- a/tests/ref/seek/lavf-au
> +++ b/tests/ref/seek/lavf-au
> @@ -1,53 +1,53 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st:-1 flags:1 ts: 1.894167
> ret:-EOF
> ret: 0 st: 0 flags:0 ts: 0.788345
> -ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 69572 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 69572 size: 512
> ret: 0 st: 0 flags:1 ts:-0.317506
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st:-1 flags:0 ts: 2.576668
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.470835
> ret:-EOF
> ret: 0 st: 0 flags:0 ts: 0.365011
> -ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 32234 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 32234 size: 512
> ret: 0 st: 0 flags:1 ts:-0.740839
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st:-1 flags:0 ts: 2.153336
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.047503
> ret:-EOF
> ret: 0 st: 0 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st: 0 flags:1 ts: 2.835828
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.730004
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 55092 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 55092 size: 512
> ret: 0 st: 0 flags:0 ts:-0.481655
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st: 0 flags:1 ts: 2.412494
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.306672
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 17754 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 17754 size: 512
> ret: 0 st: 0 flags:0 ts:-0.904989
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st: 0 flags:1 ts: 1.989184
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 77950 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 77950 size: 512
> ret: 0 st:-1 flags:1 ts:-0.222493
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> ret: 0 st: 0 flags:0 ts: 2.671678
> ret:-EOF
> ret: 0 st: 0 flags:1 ts: 1.565850
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 40612 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 40612 size: 512
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 2048
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 40 size: 512
> diff --git a/tests/ref/seek/lavf-mov b/tests/ref/seek/lavf-mov
> index 27ea7c7730..88fba97cf3 100644
> --- a/tests/ref/seek/lavf-mov
> +++ b/tests/ref/seek/lavf-mov
> @@ -1,48 +1,48 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st:-1 flags:1 ts: 1.894167
> -ret: 0 st: 1 flags:1 dts: 0.952018 pts: 0.952018 pos: 326971 size: 1024
> +ret: 0 st: 1 flags:1 dts: 0.946213 pts: 0.946213 pos: 326619 size: 768
> ret: 0 st: 0 flags:0 ts: 0.788359
> -ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327995 size: 27834
> +ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327387 size: 27834
> ret: 0 st: 0 flags:1 ts:-0.317500
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret:-1 st: 1 flags:0 ts: 2.576667
> ret: 0 st: 1 flags:1 ts: 1.470839
> -ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327995 size: 27834
> +ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327387 size: 27834
> ret: 0 st:-1 flags:0 ts: 0.365002
> -ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 165249 size: 27925
> +ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 164897 size: 27925
> ret: 0 st:-1 flags:1 ts:-0.740831
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret:-1 st: 0 flags:0 ts: 2.153359
> ret: 0 st: 0 flags:1 ts: 1.047500
> -ret: 0 st: 1 flags:1 dts: 0.952018 pts: 0.952018 pos: 326971 size: 1024
> +ret: 0 st: 1 flags:1 dts: 0.946213 pts: 0.946213 pos: 326619 size: 768
> ret: 0 st: 1 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st: 1 flags:1 ts: 2.835828
> -ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327995 size: 27834
> +ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327387 size: 27834
> ret:-1 st:-1 flags:0 ts: 1.730004
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 1 flags:1 dts: 0.464399 pts: 0.464399 pos: 164225 size: 1024
> +ret: 0 st: 1 flags:1 dts: 0.464399 pts: 0.464399 pos: 164129 size: 768
> ret: 0 st: 0 flags:0 ts:-0.481641
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st: 0 flags:1 ts: 2.412500
> -ret: 0 st: 1 flags:1 dts: 0.952018 pts: 0.952018 pos: 326971 size: 1024
> +ret: 0 st: 1 flags:1 dts: 0.946213 pts: 0.946213 pos: 326619 size: 768
> ret:-1 st: 1 flags:0 ts: 1.306667
> ret: 0 st: 1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st:-1 flags:0 ts:-0.904994
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret: 0 st:-1 flags:1 ts: 1.989173
> -ret: 0 st: 1 flags:1 dts: 0.952018 pts: 0.952018 pos: 326971 size: 1024
> +ret: 0 st: 1 flags:1 dts: 0.946213 pts: 0.946213 pos: 326619 size: 768
> ret: 0 st: 0 flags:0 ts: 0.883359
> -ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327995 size: 27834
> +ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327387 size: 27834
> ret: 0 st: 0 flags:1 ts:-0.222500
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> ret:-1 st: 1 flags:0 ts: 2.671678
> ret: 0 st: 1 flags:1 ts: 1.565850
> -ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327995 size: 27834
> +ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos: 327387 size: 27834
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 165249 size: 27925
> +ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 164897 size: 27925
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1767 size: 27837
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 1671 size: 27837
> diff --git a/tests/ref/seek/lavf-mulaw b/tests/ref/seek/lavf-mulaw
> index 4b1f8fbc02..e46de928a2 100644
> --- a/tests/ref/seek/lavf-mulaw
> +++ b/tests/ref/seek/lavf-mulaw
> @@ -1,53 +1,53 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:1 ts: 1.894167
> -ret: 0 st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos: 41766 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos: 41766 size: 128
> ret: 0 st: 0 flags:0 ts: 0.788345
> -ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 17383 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 17383 size: 128
> ret: 0 st: 0 flags:1 ts:-0.317506
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts: 2.576668
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.470835
> -ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 32432 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 32432 size: 128
> ret: 0 st: 0 flags:0 ts: 0.364989
> -ret: 0 st: 0 flags:1 dts: 0.364989 pts: 0.364989 pos: 8048 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.364989 pts: 0.364989 pos: 8048 size: 128
> ret: 0 st: 0 flags:1 ts:-0.740816
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st:-1 flags:0 ts: 2.153336
> ret:-EOF
> ret: 0 st:-1 flags:1 ts: 1.047503
> -ret: 0 st: 0 flags:1 dts: 1.047483 pts: 1.047483 pos: 23097 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.047483 pts: 1.047483 pos: 23097 size: 128
> ret: 0 st: 0 flags:0 ts:-0.058322
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 2.835828
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.730004
> -ret: 0 st: 0 flags:1 dts: 1.730023 pts: 1.730023 pos: 38147 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.730023 pts: 1.730023 pos: 38147 size: 128
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 13763 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 13763 size: 128
> ret: 0 st: 0 flags:0 ts:-0.481678
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 2.412517
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 1.306672
> -ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 28812 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 28812 size: 128
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.200816 pts: 0.200816 pos: 4428 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.200816 pts: 0.200816 pos: 4428 size: 128
> ret: 0 st: 0 flags:0 ts:-0.904989
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:1 ts: 1.989161
> -ret: 0 st: 0 flags:1 dts: 1.989161 pts: 1.989161 pos: 43861 size: 239
> +ret: 0 st: 0 flags:1 dts: 1.989161 pts: 1.989161 pos: 43861 size: 128
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.883356 pts: 0.883356 pos: 19478 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.883356 pts: 0.883356 pos: 19478 size: 128
> ret: 0 st:-1 flags:1 ts:-0.222493
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> ret: 0 st: 0 flags:0 ts: 2.671655
> ret:-EOF
> ret: 0 st: 0 flags:1 ts: 1.565850
> -ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 34527 size: 1024
> +ret: 0 st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 34527 size: 128
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 10143 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 10143 size: 128
> ret: 0 st:-1 flags:1 ts:-0.645825
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size: 128
> diff --git a/tests/ref/seek/lavf-voc b/tests/ref/seek/lavf-voc
> index 014c251129..47d683230a 100644
> --- a/tests/ref/seek/lavf-voc
> +++ b/tests/ref/seek/lavf-voc
> @@ -1,44 +1,44 @@
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 256
> ret: 0 st:-1 flags:0 ts:-1.000000
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 256
> ret: 0 st:-1 flags:1 ts: 1.894167
> ret:-EOF
> ret: 0 st: 0 flags:0 ts: 0.788330
> -ret: 0 st: 0 flags:1 dts: 0.800773 pts: 0.800773 pos: 34984 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.788997 pts: 0.788997 pos: 34872 size: 256
> ret:-1 st: 0 flags:1 ts:-0.317494
> ret:-1 st:-1 flags:0 ts: 2.576668
> ret: 0 st:-1 flags:1 ts: 1.470835
> ret:-EOF
> ret: 0 st: 0 flags:0 ts: 0.365012
> -ret: 0 st: 0 flags:1 dts: 0.376834 pts: 0.376834 pos: 16480 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.365058 pts: 0.365058 pos: 16152 size: 256
> ret:-1 st: 0 flags:1 ts:-0.740834
> ret:-1 st:-1 flags:0 ts: 2.153336
> ret: 0 st:-1 flags:1 ts: 1.047503
> ret:-EOF
> ret: 0 st: 0 flags:0 ts:-0.058328
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 256
> ret: 0 st: 0 flags:1 ts: 2.835848
> ret:-EOF
> ret:-1 st:-1 flags:0 ts: 1.730004
> ret: 0 st:-1 flags:1 ts: 0.624171
> -ret: 0 st: 0 flags:1 dts: 0.612356 pts: 0.612356 pos: 26760 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.624132 pts: 0.624132 pos: 27592 size: 256
> ret: 0 st: 0 flags:0 ts:-0.481669
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 256
> ret: 0 st: 0 flags:1 ts: 2.412507
> ret:-EOF
> ret:-1 st:-1 flags:0 ts: 1.306672
> ret: 0 st:-1 flags:1 ts: 0.200839
> -ret: 0 st: 0 flags:1 dts: 0.188417 pts: 0.188417 pos: 8256 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.200193 pts: 0.200193 pos: 8872 size: 256
> ret: 0 st: 0 flags:0 ts:-0.904986
> -ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 32 size: 256
> ret: 0 st: 0 flags:1 ts: 1.989167
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 0.883340
> -ret: 0 st: 0 flags:1 dts: 0.894981 pts: 0.894981 pos: 39096 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.889093 pts: 0.889093 pos: 39292 size: 256
> ret:-1 st:-1 flags:1 ts:-0.222493
> ret:-1 st: 0 flags:0 ts: 2.671673
> ret: 0 st: 0 flags:1 ts: 1.565849
> ret:-EOF
> ret: 0 st:-1 flags:0 ts: 0.460008
> -ret: 0 st: 0 flags:1 dts: 0.471043 pts: 0.471043 pos: 20592 size: 1024
> +ret: 0 st: 0 flags:1 dts: 0.465155 pts: 0.465155 pos: 20572 size: 256
> ret:-1 st:-1 flags:1 ts:-0.645825
> --
> 2.16.1
>
>
> _______________________________________________
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> ffmpeg-devel at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
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