Jacob Trimble [Thu, 7 Dec 2017 00:17:54 +0000 (16:17 -0800)]
avformat/mov: Increase support for common encryption.
- Parse schm atom to get different encryption schemes.
- Allow senc atom to appear in track fragments.
- Allow 16-byte IVs.
- Allow constant IVs (specified in tenc).
- Allow only tenc to specify encryption (i.e. no senc/saiz/saio).
- Use sample descriptor to detect clear fragments.
This doesn't support:
- Different sample descriptor holding different encryption info.
- Only first sample descriptor can be encrypted.
- Encrypted sample groups (i.e. seig).
- Non-'cenc' encryption scheme when using -decryption_key.
Signed-off-by: Jacob Trimble <modmaker@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avdevice/decklink_commmon: enhance error messages when iterator creation fails
Show a more useful error message which specifies the required driver version
for the build, and use the correct context in the error message for WIN32.
Carl Eugen Hoyos [Sun, 15 Apr 2018 21:57:24 +0000 (23:57 +0200)]
lavc/dxva2_internal: Cast the dxva2 and d3d11 decoders and cfgs to (void *).
Silences several warnings:
libavcodec/dxva2_internal.h:107:98: warning: pointer type mismatch in conditional expression
libavcodec/dxva2_internal.h:109:94: warning: pointer type mismatch in conditional expression
Carl Eugen Hoyos [Sun, 15 Apr 2018 21:40:19 +0000 (23:40 +0200)]
lavd/vfwcap: Pass pointers to int instead of long to av_parse_video_size().
Fixes the following warnings:
libavdevice/vfwcap.c:331:35: warning: passing argument 1 of 'av_parse_video_size' from incompatible pointer type
libavdevice/vfwcap.c:331:59: warning: passing argument 2 of 'av_parse_video_size' from incompatible pointer type
Matt Oliver [Tue, 10 Apr 2018 13:01:18 +0000 (23:01 +1000)]
ffplay: Fix realloc_texture when input texture is NULL.
SDL_QueryTexture and SDL_DestroyTexture require that the input texture
pointer be non-null. Debug builds of SDL will correctly check for this
and break program execution. This patch fixes this by checking the
status of the texture pointer.
Timo Teräs [Sat, 14 Apr 2018 18:32:11 +0000 (21:32 +0300)]
avformat/movenc: support writing iTunes cover image
Fixes https://trac.ffmpeg.org/ticket/2798
This makes movenc handle AV_DISPOSITION_ATTACHED_PIC and write
the associated pictures in iTunes cover atom. This corresponds
to how 'mov' demuxer parses and exposes the cover images when
reading.
Most of the existing track handling loops properly ignore
these 'virtual streams' as MOVTrack->entry is never incremented
for them. However, additional tests are added as needed to ignore
them.
Timo Teräs [Thu, 12 Apr 2018 08:07:36 +0000 (11:07 +0300)]
ffprobe: report unavailable SAR correctly in stream info
av_guess_sample_aspect_ratio() will return undefined or missing
value as {0,1}. This fixes show_stream() to check numerator to
display 'N/A' when appropriate. show_frame() does this already
correctly.
Vishwanath Dixit [Wed, 11 Apr 2018 07:02:25 +0000 (12:32 +0530)]
avformat/dashenc: addition of segment index correction logic
The logic is applicable only when use_template is enabled and use_timeline
is disabled. The logic monitors the flow of segment indexes. If a streams's
segment index value is not at the expected real time position, then
the logic corrects that index value.
Typically this logic is needed in live streaming use cases. The network
bandwidth fluctuations are common during long run streaming. Each
fluctuation can cause the segment indexes fall behind the expected real
time position. Without this logic, players will not be able to consume
the content, even after encoder's network condition comes back to
normal state.
Vishwanath Dixit [Wed, 11 Apr 2018 07:01:47 +0000 (12:31 +0530)]
avformat/dashenc: addition of @availabilityTimeOffset in MPD
availability time of Nth segment = availabilityStartTime + (N*segment duration) - availabilityTimeOffset.
This field helps to reduce the latency by about a segment duration in streaming mode.
Vishwanath Dixit [Wed, 11 Apr 2018 07:01:36 +0000 (12:31 +0530)]
avformat/dashenc: setting @availabilityStartTime when the first frame is ready
@availabilityStartTime specifies the anchor for the computation of the earliest
availability time (in UTC) for any Segment in the Media Presentation.
As per this requirement, the @AvailabilityStartTime should be set to the
wallclock time at which the first frame of the first segment begins encoding.
But, it was getting set only when the first segment was completely ready. Making
the required correction in this patch. This correction is mainly needed to reduce
the latency in live streaming use cases.
Vishwanath Dixit [Wed, 11 Apr 2018 07:01:26 +0000 (12:31 +0530)]
avformat/dashenc: removed 'write_manifest' call from 'write_header'
Calling 'write_manifest' from 'write_header' was causing creation of
first MPD with invalid values. Ex: zero @duration param value. Also,
the manifest files (MPD or M3U8s) should be created when at-least
one media frame is ready for consumption.
Vishwanath Dixit [Wed, 11 Apr 2018 07:00:18 +0000 (12:30 +0530)]
avformat/dashenc: segmentation at the configured segment duration rate
When use_template is enabled and use_timeline is disabled, typically
it is required to generate the segments at the configured segment duration
rate on an average. This commit is particularly needed to handle the
segmentation when video frame rates are fractional like 29.97 or 59.94 fps.
Vishwanath Dixit [Mon, 16 Apr 2018 05:25:45 +0000 (10:55 +0530)]
avformat/dashenc: replacing 'min_seg_duration' with 'seg_duration'
There are use cases where average segment duration needs to be configured
and muxer is expected to maintain the average segment duration. So, using
the name 'min_seg_duration' will be misleading. So, changing the parameter
name to 'seg_duration', where it can be minimum segment duration or average
segment duration based on the use-case. The additional updates needed for
this functinality are made the sub-sequent patches of this patch series.
Richard Shaffer [Tue, 17 Apr 2018 06:40:06 +0000 (14:40 +0800)]
avformat/hls: clean up duplicate option fields
The HLSContext struct contains fields which duplicate the data stored in the
avio_opts field. This change removes those fields in favor of avio_opts, and
updates the code accordingly.
The original patch caused the buffer pointed to by new_cookies in open_url to be
leaked. The only thing that buffer is used for is to store the value until it
can be passed to av_dict_set. To fix the leak, v2 of the patch simply calls
av_dict_set with the AV_DICT_DONT_STRDUP_VAL flag, so that the dictionary takes
ownership of the memory instead of copying it again.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org> Signed-off-by: Richard Shaffer <rshaffer@tunein.com>
Richard Shaffer [Tue, 17 Apr 2018 06:39:26 +0000 (14:39 +0800)]
avformat/hls: copy rw_timeout from parent to child AVIOContexts.
The rw_timeout option is currently not applied when opening media playlist,
segment, or encryption key URLs. This can cause the HLS demuxer to block
indefinitely, even when the rw_timeout option has been specified. This change
simply enables carrying over the rw_timeout option when the demuxer opens these
URLs.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org> Signed-off-by: Richard Shaffer <rshaffer@tunein.com>
Steven Liu [Tue, 17 Apr 2018 06:25:07 +0000 (14:25 +0800)]
avformat/hls: copy rw_timeout from parent to child AVIOContexts.
The rw_timeout option is currently not applied when opening media playlist,
segment, or encryption key URLs. This can cause the HLS demuxer to block
indefinitely, even when the rw_timeout option has been specified. This change
simply enables carrying over the rw_timeout option when the demuxer opens these
URLs.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org> Signed-off-by: Richard Shaffer <rshaffer@tunein.com>
Mark Thompson [Sat, 14 Apr 2018 14:46:00 +0000 (15:46 +0100)]
amfenc: Do not automatically download/upload unknown hardware input frames
Supplying a hardware input frame which is not in the input hardware frames
context is not allowed by the API, so additional code to handle it is not
necessary. Further, handling it automatically results in very low
performance - it is more appropriate to fail immediately so that the user
can fix their incorrect setup.
When using clang-cl it expects parameters passed in MSVC-style, so appropriate toolchain should be selected.
As soon as both clang and clang-cl report themselfs as "clang" with -v option the only chance to detect
clang-cl is passing -? option to both which is valid for clang-cl.exe and not for clang.exe.
Reviewed-by: Dale Curtis <dalecurtis@chromium.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Hendrik Leppkes [Thu, 5 Apr 2018 15:09:35 +0000 (17:09 +0200)]
avcodec/aac_ac3_parser: account for data already in the parsing buffer
If a frame starts very close to a packet boundary, the start code may
already have been added to the parsing buffer, indicated by a small
negative value of "i", while the header is still being tracked in the
"state" variable.
Reduce the remaining size accordingly, otherwise trying to find the next
frame could skip over the frame header and lump two frames together as
one.
James Almer [Thu, 12 Apr 2018 03:06:30 +0000 (00:06 -0300)]
avformat/utils: use the existing packet reference when parsing complete frames
If the parser returns full frames, then the output pointer retured by
av_parser_parse2() is guaranteed to point to data contained in the
input packet's buffer.
Create a new reference to said buffer in that case, to avoid
unnecessary data copy when queueing the packet later in the function.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>
* commit 'c31f6b1d61759436ef50c094e7f4c8005e97614a':
avprobe: Print a user-friendly version of the display matrix
avprobe: Support printing strings with empty keys
This commit is a noop. ffprobe is considerably different than avprobe
and is already printing display matrix values in a user readable way.
avformat/utils: Check cur_dts in update_initial_timestamps() more
Fixes: runtime error: signed integer overflow: 18133149658382192 - -9223090561878065151 cannot be represented in type 'long long' Fixes: crbug 831552 Reported-by: Matt Wolenetz <wolenetz@google.com> Reviewed-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avcodec/utils: Enforce minimum width also for VP5/6
Fixes: out of array access Fixes: poc_0411 Found-by: GwanYeong Kim <gy741.kim@gmail.com> Tested-by: GwanYeong Kim <gy741.kim@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
avformat/utils: Fix integer overflow in end time calculation in update_stream_timings()
Fixes: crbug 829153 Reported-by: Matt Wolenetz <wolenetz@google.com> Reviewed-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Bela Bodecs [Fri, 13 Apr 2018 10:11:32 +0000 (12:11 +0200)]
avformat/utils: Stream specifier enhancement 2.
In some cases, mainly working with multiprogram mpeg-ts containers as
input, it would be handy to select sub stream of a specific program by
their metadata.
This patch makes it possible to narrow the stream selection among
streams of the specified program by stream metadata.
Examples:
p:601:m:language:hun will select all sub streams of program with id 601
where sub streams have metadata key named 'language' with value 'hun'.
p:602:m:guide will select all sub streams of program with id 602 where
sub streams have metadata key named 'guide'.
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Steven Liu [Fri, 13 Apr 2018 07:39:49 +0000 (15:39 +0800)]
avformat/hlsenc: add option hls_delete_threshold
When using hls_list_size with hls_flags delete_segments, currently
hls_list_size * 2 +- segments remain on disk. With this new option,
the amount of disk space used can be controlled by the user.
fix ticket: #7131
Signed-off-by: Steven Liu <lq@chinaffmpeg.org> Signed-off-by: Aman Gupta <aman@tmm1.net>
avcodec/h264_slice: Fix integer overflow with last_poc
Fixes: signed integer overflow: 2147483646 - -2816 cannot be represented in type 'int' Fixes: crbug 823145 Reported-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: crbug 822705 Reported-by: Matt Wolenetz <wolenetz@google.com> Reviewed-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Bela Bodecs [Sun, 1 Apr 2018 21:29:14 +0000 (23:29 +0200)]
avformat/utils: Stream specifier enhancement
Currently when specifying the program id you can only decide to select
all stream of the specified program (e.g. p:103 will select all streams
of program 103) or narrow the selection to a specific stream sub index
(e.g. p:145:1 will select 2nd stream of program 145.) But you can not
specify like all audio streams of program 145 or 3rd video stream of
program 311.
In some case, mainly working with multiprogram mpeg-ts containers as
input, this feature would be handy.
This patch makes it possible to narrow the stream selection among
streams of the specified program by stream type and optionally its
index. Handled types: a, v, s, d.
Examples: p:601:a will select all audio streams of program 601,
p:603:a:1 will select 2nd audio streams of program 603,
p:604:v:0 will select first video stream of program 604.
Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
projects / ffmpeg / log