search for: blocksizes

...bset from format.c IS NOT EQUAL to my code. E.g. FLAC__format_blocksize_is_subset(1536, 44100) from format.c returns true, but 1536 is not subset blocksize because 1536 is not one of 192/576/1152/2304/4608/256/512/1024/2048/4096! > I don't understand what it is you don't get about those blocksizes. For > subset streams, the blocksize has to be one of 576/1152/2304/4608 or > 256/512/1024/2048/4096 if the samplerate is lower then or equal to > 48kHz, if higher, 8192 and 16384 are allowed too. If you use any other > blocksize, the stream is not subset compliant. > > Considerin...

...AC__format_blocksize_is_subset(1536, 44100) from format.c >>>> returns true, but 1536 is not subset blocksize because 1536 is not one >>>> of 192/576/1152/2304/4608/256/512/1024/2048/4096! >>>>> I don't understand what it is you don't get about those blocksizes. For >>>>> subset streams, the blocksize has to be one of 576/1152/2304/4608 or >>>>> 256/512/1024/2048/4096 if the samplerate is lower then or equal to >>>>> 48kHz, if higher, 8192 and 16384 are allowed too. If you use any other >>>>> blo...

From: Nikolay Ivanets <stenavin@gmail.com> v4 fixes issues found during code review: - whitespace-change-only hunks are removed - options are alphabetically orderred now v3 is just a spelling correction spotted by Eric Blake https://www.redhat.com/archives/libguestfs/2020-February/msg00111.html In v2 I've moved '--blocksize' parameter description into the separate file called

...;>>>>>>>> >>>>>>>>> Is FLAC files compressed by FFMPEG with "-compression_level 12" switch >>>>>>>>> are subset? >>>>>>>> I don't understand what it is you don't get about those blocksizes. For >>>>>>>> subset streams, the blocksize has to be one of 576/1152/2304/4608 or >>>>>>>> 256/512/1024/2048/4096 if the samplerate is lower then or equal to >>>>>>>> 48kHz, if higher, 8192 and 16384 are allowed too. If you us...

From: Nikolay Ivanets <stenavin@gmail.com> In v2 I've moved '--blocksize' parameter description into the separate file called blocksize-option.pod so we can include it everywhere we need similar to key-option.pod. v1 was here: https://www.redhat.com/archives/libguestfs/2020-February/msg00096.html Nikolay Ivanets (1): options: add '--blocksize' option for C-based

...bset from format.c IS NOT EQUAL to my code. E.g. FLAC__format_blocksize_is_subset(1536, 44100) from format.c returns true, but 1536 is not subset blocksize because 1536 is not one of 192/576/1152/2304/4608/256/512/1024/2048/4096! > I don't understand what it is you don't get about those blocksizes. For > subset streams, the blocksize has to be one of 576/1152/2304/4608 or > 256/512/1024/2048/4096 if the samplerate is lower then or equal to > 48kHz, if higher, 8192 and 16384 are allowed too. If you use any other > blocksize, the stream is not subset compliant. > > Considerin...

From: Nikolay Ivanets <stenavin@gmail.com> v3 is just a spelling correction spotted by Eric Blake In v2 I've moved '--blocksize' parameter description into the separate file called blocksize-option.pod so we can include it everywhere we need similar to key-option.pod. https://www.redhat.com/archives/libguestfs/2020-February/msg00099.html v1 was here:

...bset from format.c IS NOT EQUAL to my code. E.g. FLAC__format_blocksize_is_subset(1536, 44100) from format.c returns true, but 1536 is not subset blocksize because 1536 is not one of 192/576/1152/2304/4608/256/512/1024/2048/4096! > I don't understand what it is you don't get about those blocksizes. > For > subset streams, the blocksize has to be one of 576/1152/2304/4608 or > 256/512/1024/2048/4096 if the samplerate is lower then or equal to > 48kHz, if higher, 8192 and 16384 are allowed too. If you use any other > blocksize, the stream is not subset compliant. > > Con...

--- filters/blocksize/nbdkit-blocksize-filter.pod | 4 ++-- filters/blocksize/blocksize.c | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/filters/blocksize/nbdkit-blocksize-filter.pod b/filters/blocksize/nbdkit-blocksize-filter.pod index b6cf4dd..0abed2f 100644 --- a/filters/blocksize/nbdkit-blocksize-filter.pod +++

Allow `launch` call to accept an optional argument, called `blocksize`. Example: $ guestfish --listen -a raw.img $ guestfish --remote -- launch blocksize:4096 The actual qemu command is: [...] -device virtio-scsi-ccw,id=scsi -drive file=raw.img,cache=writeback,id=hd0,if=none -device scsi-hd,drive=hd0,physical_block_size=4096,logical_block_size=4096 [...] Signed-off-by: Tuan Hoang

From: Nikolay Ivanets <stenavin@gmail.com> This patch adds '--blocksize' command line option parsing and handling for guestfish and other C-based tools which share the same code from this sub-module. '--blocksize' will be a common for almost all libguestfs-based tools and thus parameter description will be repeated all the time. Let's move it into blocksize-option.pod

From: Nikolay Ivanets <stenavin@gmail.com> This patch adds '--blocksize' command line option for guestfish and other C-based tools. This option allows specifying disk sector size. --- align/scan.c | 8 ++++++++ align/virt-alignment-scan.pod | 12 ++++++++++++ cat/cat.c | 8 ++++++++ cat/filesystems.c | 8 ++++++++ cat/log.c

From: Nikolay Ivanets <stenavin@gmail.com> This patch depends on changes in 'common' sub-module posted here: https://www.redhat.com/archives/libguestfs/2020-February/msg00096.html Nikolay Ivanets (1): tools: add '--blocksize' option for C-based tools align/scan.c | 8 ++++++++ align/virt-alignment-scan.pod | 12 ++++++++++++ cat/cat.c

...6384; if the sample rate is <= 48000Hz, the blocksize must be <=4608. As far as I can tell, this means that a blocksize of 588 should be subset, although the blocksize would be a 16 bit value at the end of the frame header. However when I try encoding with flac 1.2.1 it says that only the blocksizes that can be represented in the 4 bits in the early part of the frame header. Which is correct? Can anyone forsee any problems with encoding with a block size of 588 samples? Best Regards Howard Meridian Audio Ltd - www.meridian-audio.com - Registered in England Registered Office: 11 Latham Ro...

Since the blocksize option was added since the minimum version of libguestfs for virt-v2v, we need to make it conditional so that virt-v2v can still be compiled with the older libguestfs. This commit does the minimum fix to make it build. It doesn't conditionalize the --blocksize option altogether. However I believe, at least for virt-v2v, that is OK since the --blocksize option is not used

From: Nikolay Ivanets <stenavin@gmail.com> Nowadays there are hard drives and operating systems which support "4K native" sector size. In this mode physical and logical block size exposed to the operating system is equal to 4096 bytes. GPT partition table (as a known example) being created in this mode will place GPT header at LBA1 which is 4096 bytes. libguetfs is unable to

From: Nikolay Ivanets <stenavin@gmail.com> Nowadays there are hard drives and operating systems which support "4K native" sector size. In this mode physical and logical block size exposed to the operating system is equal to 4096 bytes. GPT partition table (as a known example) being created in this mode will place GPT header at LBA1 which is 4096 bytes. libguetfs is unable to

It is easy to demonstrate that our blocksize filter has a bug: if the minblock= setting is a higher granularity than the underlying plugin actually supports, and the client is trying to collect block status for the entire disk, a mid-block transition in the plugin can result in the filter rounding a request so small that it no longer makes progress, causing the client to see: nbd.Error:

On 1/5/19 8:50 AM, Richard W.M. Jones wrote: > I examined each filter to see which ones implement a cache and do not > properly consider consistency across clients for flush requests. For > these filters we should force .can_multi_conn to return false. > > I believe only one filter (blocksize) needs to be updated and all the > other ones are safe. > --- >

Add a new launch command for direct backend, which allows specifying the blocksize to the disks. The name is `launch_blocksize`, accompanied alias is `run-blocksize`. Example: $ guestfish --listen -a raw.img $ guestfish --remote -- launch_blocksize 4096 The actual qemu command is: [...] -device virtio-scsi-ccw,id=scsi -drive file=raw.img,cache=writeback,id=hd0,if=none -device