Merge remote-tracking branch 'qatar/master'

* qatar/master: (23 commits)
  x86inc: use sse versions of common macros instead of sse2 when applicable
  doc/APIchanges: add missing dates and hashes
  lavf: don't return from void av_update_cur_dts()
  Changelog: add more entries.
  Changelog: update ffmpeg/avconv incompatibility list.
  avconv: remove some redundant temporary variables.
  avconv: fix broken indentation
  avconv: move copy_initial_nonkeyframes to the options context.
  avconv: use file:stream instead of file.stream in log messages.
  doc/avconv: elaborate on basic functionality.
  doc/avconv: -sample_fmts, not -help sample_fmts prints the sample formats
  openssl: Only use CRYPTO_set_id_callback on OpenSSL < 1.0.0
  Call avformat_network_init/deinit in the programs
  Remove leftover includes of strings.h
  avutil: Don't allow using strcasecmp/strncasecmp
  Replace all usage of strcasecmp/strncasecmp
  avstring: Add locale independent implementations of strcasecmp/strncasecmp
  avstring: Add locale independent implementations of toupper/tolower
  cosmetics: insert some spaces in explicit enum value assignments
  move 8SVX audio codecs to the audio codec list part on the next bump
  ...

Conflicts:
	avprobe.c
	doc/APIchanges
	ffplay.c
	ffserver.c
	libavcodec/avcodec.h
	libavdevice/bktr.c
	libavdevice/v4l.c
	libavdevice/v4l2.c
	libavformat/matroskaenc.c
	libavformat/wtv.c
	libavutil/avstring.c
	libavutil/avstring.h
	libavutil/avutil.h
	libswscale/x86/swscale_template.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 26 insertions, 1 deletions

diff --git a/doc/avconv.texi b/doc/avconv.texi
index bcbf2e5861..53e9890022 100644
--- a/doc/avconv.texi
+++ b/doc/avconv.texi
@@ -26,6 +26,23 @@ avconv is a very fast video and audio converter that can also grab from
 a live audio/video source. It can also convert between arbitrary sample
 rates and resize video on the fly with a high quality polyphase filter.
 
+avconv reads from an arbitrary number of input "files" (which can be regular
+files, pipes, network streams, grabbing devices, etc.), specified by the
+@code{-i} option, and writes to an arbitrary number of output "files", which are
+specified by a plain output filename. Anything found on the commandline which
+cannot be interpreted as an option is considered to be an output filename.
+
+Each input or output file can in principle contain any number of streams of
+different types (video/audio/subtitle/attachment/data). Allowed number and/or
+types of streams can be limited by the container format. Selecting, which
+streams from which inputs go into output, is done either automatically or with
+the @code{-map} option (see the Stream selection chapter).
+
+To refer to input files in options, you must use their indices (0-based). E.g.
+the first input file is @code{0}, the second is @code{1} etc. Similarly, streams
+within a file are referred to by their indices. E.g. @code{2:3} refers to the
+fourth stream in the third input file. See also the Stream specifiers chapter.
+
 As a general rule, options are applied to the next specified
 file. Therefore, order is important, and you can have the same
 option on the command line multiple times. Each occurrence is
@@ -33,6 +50,10 @@ then applied to the next input or output file.
 Exceptions from this rule are the global options (e.g. verbosity level),
 which should be specified first.
 
+Do not mix input and output files -- first specify all input files, then all
+output files. Also do not mix options which belong to different files. All
+options apply ONLY to the next input or output file and are reset between files.
+
 @itemize
 @item
 To set the video bitrate of the output file to 64kbit/s:
@@ -525,6 +546,10 @@ frames after each specified time.
 This option can be useful to ensure that a seek point is present at a
 chapter mark or any other designated place in the output file.
 The timestamps must be specified in ascending order.
+
+@item -copyinkf[:@var{stream_specifier}] (@emph{output,per-stream})
+When doing stream copy, copy also non-key frames found at the
+beginning.
 @end table
 
 @section Audio Options
@@ -549,7 +574,7 @@ Disable audio recording.
 @item -acodec @var{codec} (@emph{input/output})
 Set the audio codec. This is an alias for @code{-codec:a}.
 @item -sample_fmt[:@var{stream_specifier}] @var{sample_fmt} (@emph{output,per-stream})
-Set the audio sample format. Use @code{-help sample_fmts} to get a list
+Set the audio sample format. Use @code{-sample_fmts} to get a list
 of supported sample formats.
 @end table