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Add SPDX copyright and license markers to repository metadata and
documentation files.
Use comment styles appropriate for git attributes, gitignore, the commit
message template, README, and justfile so license metadata is visible
without changing runtime behavior.
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Add --skip-codec-override so users can ignore configured skip codecs for
a single run and use only codecs provided through --skip-codec.
Defer CLI skip-codec parsing until after config loading so the final
skip list can be resolved independently of option order.
Document the new override behavior in the README and man page, and add
shell completion for the new flag.
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Add --backup-dir support so successful encodes can copy the original
file to an existing backup directory before replacing it.
Preserve each source file's absolute path below the backup directory and
avoid overwriting existing backups by appending numeric suffixes when
needed.
Document the new CLI and config option, and add directory completion for
the backup path.
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Keep nice validation focused on accepting integer values instead of
rejecting values outside the standard -20 to 19 range.
Avoid failing early for values that nice itself accepts and clamps
internally. This gives users behavior that matches the underlying tool
instead of turning a non-error into a transcode.sh usage error.
Update help text and README wording to describe the option as a nice
adjustment, matching the command behavior.
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Move the preset security note before the preset path so readers see the
warning before creating or sourcing preset files.
Align the size report schema header with spaces for cleaner rendered
documentation.
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Correct the README entry for the long --encode-file=PATH form, which was
documented as --encodefile=PATH.
Also fix spacing in the generated help text for output_gop_size so the
preset variable descriptions remain aligned.
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Rename the old savings log feature to size report across the CLI,
configuration, documentation, man page, and bash completion. The new
`--size-report` option keeps the existing `-s` shorthand, while
`--saving`, `--saving-file`, and the `[saving]` config section are
replaced by `--size-report`, `--size-report-file`, and `[size_report]`.
Extend reporting beyond successful encodes. The TSV log now gains a
leading `status` column and records encoded files, codec skips,
only-if-larger skips, and failed inputs. Size-report output also prints
per-file feedback for encoded and skipped-larger files, including
human-readable original/new sizes, bytes saved, and saved percentage.
Track batch-level report counters and print an end-of-run summary for
multi-file runs with encoded/skipped/failed counts, total bytes saved,
and the overall weighted saving percentage across successful encodes.
Document the new TSV schema in the README and man page, update examples
and config snippets, and adjust bash completion for the renamed options.
BREAKING CHANGE: `--saving` is now `--size-report`. `--saving-file` is
now `--size-report-file`. `[saving]` in config.toml is now
`[size_report]`. The TSV log gains a leading `status` column and may
contain skipped and failed rows in addition to successful encodes.
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Both tools were used for simple arithmetic that bash handles natively.
awk: fps rounding (num/den) replaced with round-half-up integer
arithmetic: (num + den/2) / den.
bc: savings percentage replaced with bash $(( )) arithmetic. bc was a
conditional dependency (only required with --saving), which made the
dependency story inconsistent. Removing it means the full feature set is
available with only ffmpeg, ffprobe, nice, and optionally tomlq.
Updated README requirements table, man page --saving description, SEE
ALSO section, and exit-code 127 entry accordingly.
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Print all *.sh files found in $PRESET_DIR, one per line, with a one-line
description extracted from the first line of each file if it matches a
`# description: …` comment. Presets without such a comment are listed
without a description.
Symlinks pointing to another preset inside $PRESET_DIR are shown as
"<name> - Symlinked to <target>" rather than duplicating the
description. Symlinks pointing outside $PRESET_DIR are followed and
treated as regular preset files.
Column width for preset names is calculated from the longest name in the
directory so descriptions align with minimal padding.
Also extracts the repeated readlink/realpath idiom into a dedicated
resolve_path() helper and adds a doc comment to filesize().
Exits immediately after printing (same pattern as --version/--help).
Honours --quiet/NO_COLOR via the existing msg() and color
infrastructure.
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Add --hwaccel [METHOD] / --no-hwaccel flags to control whether -hwaccel
is passed to ffmpeg before the input file. The METHOD argument is
optional and defaults to "auto", letting ffmpeg select the best
available hardware decoder with automatic software fallback.
Hardware acceleration is enabled by default (method: auto). Users on
hosts where hwaccel causes compatibility or stability issues can opt out
with --no-hwaccel or config.toml [encoding] hwaccel = false.
The config key accepts false (disable), true (auto), or a method string
such as "vaapi" or "cuda". CLI flags take precedence as usual.
Bash completion is extended with a hwaccel_methods word list (auto,
cuda, vaapi, dxva2, d3d11va, videotoolbox, qsv) for both the space form
(--hwaccel <TAB>) and the equals form (--hwaccel=<TAB>).
The completion script is also reformatted from 4-space to 2-space
indentation for consistency with transcode.sh itself.
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PATH='/bin:/usr/bin:/usr/local/bin' was intended as a security measure
against PATH injection. For a script invoked manually in the user's own
shell the benefit is marginal: if an attacker controls the user's PATH
they already have larger problems. The cost is real — tools installed
outside these three directories (Homebrew, Nix, ~/.local/bin) silently
fail, and the documented workaround of prepending a path at invocation
time does not work because the script overwrites PATH immediately on
startup.
Remove the PATH reset and all associated documentation. The remaining
hardening measures (unalias -a, hash -r, strict set -o flags, umask) are
retained.
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After ffmpeg exits successfully, run ffprobe against the temporary
output file to confirm it is a valid, playable media file before
replacing the original. If the probe fails the temporary file is removed
and the encode is treated as a runtime failure, leaving the original
untouched.
This guards against cases where ffmpeg exits 0 but has written a
truncated or corrupt container (e.g. due to a disk-full condition
mid-write, a codec bug, or a preset producing an unreadable stream).
The check is enabled by default and can be disabled via
--no-verify-output or [encoding] verify_output = false in config.toml
for large batch jobs on trusted encoders where the extra ffprobe
round-trip is undesirable.
The --continue flag is honoured: a failed integrity check counts as a
runtime failure for the purposes of deciding whether to proceed to the
next file.
Docs, man page, bash completion, and README updated accordingly.
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Add input_frame_rate, input_fps, and output_gop_size to the set of
variables available to preset files at source time.
input_frame_rate is the raw ffprobe fraction (e.g. 30000/1001).
input_fps rounds that fraction to the nearest integer via awk.
output_gop_size is derived as roughly five seconds of video (input_fps *
5), capped at 300 frames.
The ffprobe invocation is extended to request r_frame_rate alongside the
existing codec_name and pix_fmt entries; a missing frame rate is now
treated as a hard error. Dry-run and verbose output are updated to
display the new values. Documentation (header comment, --help text, man
page, README) is updated accordingly.
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The contact address dennis.fink@c3l.lu has been replaced with
me+coding@dennisfink.me across all files where it appeared:
SPDX-FileCopyrightText, AUTHOR constant, --version output,
README footer, LICENSE file, and the man page AUTHOR section.
SPDX licence headers were also added to transcode.sh.1 and
transcode.sh.bash-completion to bring all files into full
REUSE compliance.
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Add a structured config file so common defaults can live in one place
instead of being repeated in aliases or shell wrappers. CLI flags keep
precedence, which keeps one-off overrides predictable.
Use tomlq only when a config file is present, and fail early on missing
dependencies or invalid TOML so configuration mistakes do not silently
change encode behavior.
Move the persistent skip-codec list from the legacy skip.conf file to
[skip] codecs in config.toml. Config codecs are merged with --skip-codec
so global defaults and per-run skips can be combined.
Document the new format in the README and man page, update dependency
notes, and extend bash completion for config-file paths and the new
negative boolean flags.
BREAKING CHANGE: skip.conf is no longer read for codec skips. Migrate
its entries to [skip] codecs in config.toml and remove the old file.
BREAKING CHANGE: --encodefile and --encodefile= are replaced by
--encode-file and --encode-file=. Update scripts, aliases, and
completion usage to use the hyphenated option name.
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Previously only output_pixel_format was mentioned. All three variables
(input_codec, input_pixel_format, output_pixel_format) are now listed
with descriptions in the script header comment, the README, and the
man page.
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Both the README and the man page now explain that the script always
passes -map 0, -map_metadata 0, -map_chapters 0, and -c copy to
ffmpeg before appending the preset's ffargs array. This context is
important for preset authors, who only need to override the streams
they intend to re-encode.
Also fix a minor blockquote rendering issue in the README (missing
blank line before the fenced code block in the PATH note).
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