Carl Eugen Hoyos writes:
Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
- return AVPROBE_SCORE_MAX - 1;
+ return AVPROBE_SCORE_EXTENSION + 1;
Sorry, I wanted you to test EXTENSION / 2 +1:
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index 8337cf5..3676f63 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -815,7 +815,7 @@ static int device_try_init(AVFormatContext *ctx,
static int v4l2_read_probe(AVProbeData *p)
{
if (av_strstart(p->filename, "/dev/video", NULL))
- return AVPROBE_SCORE_MAX - 1;
+ return AVPROBE_SCORE_EXTENSION / 2 + 1;
return 0;
}
Sorry, Carl Eugen
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Hi
Before the patch
tps@t420:~/AMC/test/temp$ ffmpeg -y -i /dev/video1 -c copy -f mpegts
ffmpeg.ts
ffmpeg version N-69238-g2699a37 Copyright (c) 2000-2015 the FFmpeg
developers
built on Jan 24 2015 11:51:09 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --enable-gpl --enable-libmp3lame --enable-libvpx --enable-
libx264 --enable-version3 --enable-libvorbis --enable-x11grab --enable-
libfreetype --enable-libv4l2 --enable-libfdk-aac --enable-nonfree
libavutil 54. 17.100 / 54. 17.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 19.100 / 56. 19.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 8.101 / 5. 8.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[video4linux2,v4l2 @ 0x38d80e0] The device does not support the streaming
I/O method.
/dev/video1: Function not implemented
tps@t420:~/AMC/test/temp$
After patch
tps@t420:~/AMC/test$ ffmpeg -y -i /dev/video1 -c copy -f mpegts ffmpeg.ts
ffmpeg version N-69238-g2699a37 Copyright (c) 2000-2015 the FFmpeg
developers
built on Jan 24 2015 11:51:09 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --enable-gpl --enable-libmp3lame --enable-libvpx --enable-
libx264 --enable-version3 --enable-libvorbis --enable-x11grab --enable-
libfreetype --enable-libv4l2 --enable-libfdk-aac --enable-nonfree
libavutil 54. 17.100 / 54. 17.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 19.100 / 56. 19.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 8.101 / 5. 8.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[video4linux2,v4l2 @ 0x266c0e0] The device does not support the streaming
I/O method.
/dev/video1: Function not implemented
tps@t420:~/AMC/test$
I don't know how to apply the patch so I patched by hand. Here is how the
function looks now.
static int v4l2_read_probe(AVProbeData *p)
{
if (av_strstart(p->filename, "/dev/video", NULL))
// tps patch from carl e return AVPROBE_SCORE_MAX - 1;
return AVPROBE_SCORE_EXTENSION / 2 + 1;
return 0;
}
I did do make and make install and I don't understand why the new build
time is not reflected in the output after the patch!!
Thanks
Thomas S
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