This patch adds the ability to generate WebM DASH manifest XML using
ffmpeg. A sample command line would be as follows:
ffmpeg \
-f webm_dash_manifest -i video1.webm \
-f webm_dash_manifest -i video2.webm \
-f webm_dash_manifest -i audio1.webm \
-f webm_dash_manifest -i audio2.webm \
-map 0 -map 1 -map 2 -map 3 \
-c copy \
-f webm_dash_manifest \
-adaptation_sets “id=0,streams=0,1 id=1,streams=2,3” \
manifest.xml
It works by exporting necessary fields as metadata tags in matroskadec
and use those values to write the appropriate XML fields as per the WebM
DASH Specification [1]. Some ideas are adopted from webm-tools project
[2].
[1]
https://sites.google.com/a/webmproject.org/wiki/adaptive-streaming/webm-dash-specification
[2]
https://chromium.googlesource.com/webm/webm-tools/+/master/webm_dash_manifest/
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The AVStream.parser field is considered private and its location cannot be
preserved while preserving also ABI compatibility to libav, as libav added fields
before it.
Some tools like ffmpeg.c access this field though
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f6ee61fb05482c617f5deee29a190d8ff483b3d1':
lavc: export DV profile API used by muxer/demuxer as public
Conflicts:
configure
doc/APIchanges
libavcodec/Makefile
libavcodec/dv_profile.c
libavcodec/dv_profile.h
libavcodec/version.h
libavformat/dvenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This reverts a hunk from 671005558a
Reduces diff to what we use on the server
Suggested-by: Timothy Gu
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f134b5ec53b4cb51cb69bf0c64de87687ea72b12':
apichanges: fill in changes for lavu 51.19 and 51.20
Conflicts:
doc/APIchanges
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'a7fcd4122b19b0f934020f4e261d0c44c4c32e11':
output example: store the scaling context in the stream context
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6a927d7aaf5625e83a674072913b9e292a303fd1':
output example: use a macro instead of a static variable
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '63fd0d866c8300a8f251a15b1535e9ce40a407fb':
output example: allocate the audio frame only once
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'edd5f957646dcbf1bb55718bc7bf1e5481c25bcb':
output example: use OutputStream for audio streams as well
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5e7b125b6ae36893dfd9cb5661c99b67363cbb38':
output example: use the new AVFrame API to allocate audio frames
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '294daf71a7a1303b5ddd3cbefebed3b732d610f3':
output example: use a struct to bundle the video stream variables together
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '38d044429dabcd28928693240e955c6d4430cca9':
output example: use the new AVFrame API for allocating the video frame
Conflicts:
doc/examples/muxing.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
