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Commit Graph

17 Commits

Author SHA1 Message Date
Vignesh Venkatasubramanian
b5508f74b9 lavf/webmdashenc: fix unchecked strftime
Fix unchecked strftime return value. This patch fixes Coverity
CID 1295086.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-15 00:56:43 +02:00
Vignesh Venkatasubramanian
b410c69fb6 webmdashenc: Fix UTCTiming Element
Remove the direct profile from UTCTiming element. Per DASH spec,
direct profile value should be the time at which the request was
made to the server and not the time at which the manifest was
written. So ffmpeg cannot write this value. This patch removes
the direct profile and write the UTCTiming element with the http
profile only if a URL is passed as a parameter. Update the fate
test to reflect this change.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-28 03:39:07 +02:00
Vignesh Venkatasubramanian
f82ce6aa88 webmdashenc: parameter'ize minimumUpdatePeriod
Some players do not support setting minimumUpdatePeriod to zero.
This patch adds a new parameter that will let the users set any
value to this field. Also updates the test and the documentation.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-22 11:41:03 +02:00
Vignesh Venkatasubramanian
4f287a3c50 webmdashenc: Add minimumUpdatePeriod
DASH spec requires the presence of either duration of the period
or the minimumUpdatePeriod element. This patch adds the
minimumUpdatePeriod element hardcoded with the value 0 as the
manifest will never be updated for WebM DASH Live streams. Also
updating the fate test reference file.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-22 01:43:37 +02:00
Vignesh Venkatasubramanian
30ba28fe8e webmdashenc: Fix potential memory leak
Fix potential memory leak in WebM DASH Muxer. This fixes coverity
scan CID 1295088.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-21 01:12:27 +02:00
Vignesh Venkatasubramanian
1c37848f90 webmdashenc: Add better error handling
Return appropriate error codes and propagate the error codes from
helper functions to the outer calls. Also fix a potential leak in
call to av_realloc.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-17 04:48:29 +02:00
Vignesh Venkatasubramanian
30e2f87d2e webdashenc: replace unchecked av_malloc with stack allocation
Replace an unchecked av_malloc call with stack allocation as the size
is always a constant.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-14 20:48:30 +02:00
Vignesh Venkatasubramanian
d6bb82387c webmdashenc: Fix fate in MSVC
MSVC does not support the %F and %T format specifiers in strftime.
Replace that with the expanded version. This fixes the broken fate
tests in MSVC (webm-dash-manifest-*).

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-07 21:29:20 +02:00
Vignesh Venkatasubramanian
26f2e2f3f7 webmdashenc: Support for live stream manifests
This patch adds support for creating DASH manifests for WebM Live
Streams. It also updates the documentation and adds a fate test to
verify the behavior of the new muxer flag.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-05 02:08:55 +02:00
Michael Niedermayer
5b911f1d5b avformat/webmdashenc: use AVERROR(ENOMEM) for memory allocation failures
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-01 18:11:48 +02:00
Vignesh Venkatasubramanian
597d826123 lavf/webmdashenc: Representation IDs should be unique.
According to the DASH spec, Representation IDs should be unique
across all adaptation sets. Fixing that and updating the fate
reference file to reflect this change.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-12 00:21:37 +01:00
Vignesh Venkatasubramanian
a9b10e1510 lavf/webm_dash: some fields should go into Representation
Width, Height and Sample Rate should be in the AdaptationSet tag
only if all the contained representations have the same width,
height and sampling rate. Otherwise they should go into the
Representation tag. This patch adds this functionality and a fate
test for the same.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-02 19:20:05 +02:00
Carl Eugen Hoyos
7c3ba1b83a Add a closing LF to Webm-manifest files.
Fixes fate-webm-dash-manifest on AIX.

Reviewed-by: Nicolas George
2014-09-16 17:24:56 +02:00
Michael Niedermayer
72732f2ddd avformat/webmdashenc: use av_strlcpy() and allocate enough space
Fixes out of array read

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-29 13:02:34 +02:00
Michael Niedermayer
81a663f49e Drop remaining unneeded != NULL
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-15 22:47:45 +02:00
Michael Niedermayer
fb33bff990 Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39'
* commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39':
  cosmetics: Write NULL pointer equality checks more compactly

Conflicts:
	cmdutils.c
	ffmpeg_opt.c
	ffplay.c
	libavcodec/dvbsub.c
	libavcodec/dvdsubdec.c
	libavcodec/dvdsubenc.c
	libavcodec/dxa.c
	libavcodec/libxvid_rc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/rv10.c
	libavcodec/tiffenc.c
	libavcodec/utils.c
	libavcodec/vc1dec.c
	libavcodec/zmbv.c
	libavdevice/v4l2.c
	libavformat/matroskadec.c
	libavformat/movenc.c
	libavformat/sdp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-15 21:00:50 +02:00
Vignesh Venkatasubramanian
3e73d14290 lavf: Add WebM DASH Manifest Muxer
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>
2014-07-15 23:58:36 +02:00