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Commit Graph

576 Commits

Author SHA1 Message Date
Michael Niedermayer
e6c0c5731e
doc/examples/mux: remove nop
Found through code review related to CID1604493 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-12 16:40:51 +02:00
Michael Niedermayer
3e4bfff211
doc/examples/vaapi_encode: Try to check fwrite() for failure
Fixes: CID1604548 Unused value

Sponsored-by: Sovereign Tech Fund
Reviewed-by: "Xiang, Haihao" <haihao.xiang-at-intel.com@ffmpeg.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-10 18:10:07 +02:00
Michael Niedermayer
91d27f7e02
doc/examples/demux_decode: Simplify loop
Fixes: CID1463550 Logically dead code

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-09 16:17:39 +02:00
Michael Niedermayer
cae0f2bc55
doc/examples/qsv_transcode: Initialize pointer before free
Fixees: CID1517023 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Reviewed-by: "Xiang, Haihao" <haihao.xiang@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-25 03:24:59 +02:00
Michael Niedermayer
191950d1bf
doc/examples/qsv_transcode: Simplify str_to_dict() loop
Fixes: CID1517022 Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: "Xiang, Haihao" <haihao.xiang@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-25 03:24:59 +02:00
Michael Niedermayer
c9c11a0866
doc/examples/vaapi_transcode: Simplify loop
Fixes: CID1428858(1/2) Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: "mypopy@gmail.com" <mypopy@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-25 03:24:58 +02:00
Michael Niedermayer
82cce20934
doc/examples/qsv_transcode: Simplify loop
Fixes: CID1428858(2/2) Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: "Xiang, Haihao" <haihao.xiang@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-25 03:24:58 +02:00
Andreas Rheinhardt
790f793844 avutil/common: Don't auto-include mem.h
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00
Tobias Rapp
02eb2fc577 examples/decode_filter_video: Add loop for draining the filtergraph
Depending on the filters used, the filtergraph may produce trailing data
after feeding it the last input frame. Update the example to include the
necessary loop for draining the filtergraph.

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
2024-03-28 12:04:09 +01:00
Tobias Rapp
55ce666062 examples/decode_filter_audio: Add loop for draining the filtergraph
Depending on the filters used, the filtergraph may produce trailing data
after feeding it the last input frame. Update the example to include the
necessary loop for draining the filtergraph.

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
2024-03-28 12:03:57 +01:00
Andreas Rheinhardt
9223c92c88 doc/examples: Always use <> includes
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-27 17:07:06 +01:00
hung kuishing
78803a4b8a doc/examples/qsv_decode: remove unused config.h header file
Signed-off-by: clarkh <hungkuishing@outlook.com>
2024-03-12 11:26:06 +01:00
hung kuishing
6d129d8df5 doc/examples/qsv_transcode: EINVAL is more appropriate and ENAVAIL will fail build with visual studio
Signed-off-by: clarkh <hungkuishing@outlook.com>
2023-12-18 09:39:24 +08:00
Zhao Zhili
7665139656 examples/transcode: fix log message
'encoder' can be audio or video encoder.
2023-12-12 00:35:49 +01:00
Andreas Rheinhardt
423b6a7e49 avutil/imgutils: Add wrapper for av_image_copy() to avoid casts
av_image_copy() accepts const uint8_t* const * as source;
lots of user have uint8_t* const * and therefore either
cast (the majority) or copy the array of pointers.

This commit changes this by adding a static inline wrapper
for av_image_copy() that casts between the two types
so that we do not need to add casts everywhere else.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-09-12 09:42:27 +02:00
Zhao Zhili
67d392b979 examples/transcode: flush decoder on EOF
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2023-08-26 17:02:21 +08:00
Sebastian Ramacher
7de3fcb059 examples: fix build of mux and resample_audio
The commits eac4324bfb and
cd8211527e renamed the examples, but the
targets were not updated. Hence, the builds are missing -lm.

Signed-off-by: Sebastian Ramacher <sramacher@debian.org>
Signed-off-by: James Almer <jamrial@gmail.com>
2023-07-28 09:20:39 -03:00
Anton Khirnov
ba32f28498 doc/examples/transcode: convert timestamps between filtering and encoding
The timebases do not have to match.
2023-06-03 11:27:42 +02:00
Anton Khirnov
811b0e02be doc/examples/transcode: stop using decoder's AVCodecContext.time_base
The contents of this field are not defined for decoding. Use
pkt_timebase, which is the timebase of demuxed packets.

Drop a tautological av_packet_rescale_ts() call, as the stream and
decoder timebases are the same.
2023-06-03 11:27:23 +02:00
Anton Khirnov
828d3b4432 doc/examples/transcode: set packet timebase for decoding
It is recommended for callers to set it, though not required.
2023-06-03 11:27:11 +02:00
James Almer
ed3691338b doc/examples/transcode_aac: use av_samples_alloc_array_and_samples to allocate the input samples buffer and pointers
Fixes -Wuse-after-free warnings and simplifies code.

Signed-off-by: James Almer <jamrial@gmail.com>
2023-05-05 15:28:28 -03:00
Wenbin Chen
2db22d14bf doc/examples/qsv_transcode: Fix a bug when use more than one parameter set
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
2023-03-17 14:13:37 +08:00
Stefano Sabatini
cd0d267b92 doc/examples/mux: rename alloc_picture to alloc_frame
The new name is consistent with the updated API.
2023-03-12 16:45:05 +01:00
Marton Balint
2296078397 avutil/frame: deprecate AVFrame.coded_picture_number and display_picture_number
Their usefulness is questionable, very few decoders set them, and their type
should have been int64_t. A replacement field can be added later if a valid use
case is found.

Signed-off-by: Marton Balint <cus@passwd.hu>
2023-02-13 00:37:50 +01:00
Marton Balint
6b6f7db819 avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number
Frame counters can overflow relatively easily (INT_MAX number of frames is
slightly more than 1 year for 60 fps content), so make sure we use 64 bit
values for them.

Also deprecate the old 32 bit frame_number attribute.

Signed-off-by: Marton Balint <cus@passwd.hu>
2023-02-13 00:36:46 +01:00
Stefano Sabatini
e3bbf5c17d doc/examples: fix make command, reference Makefile.example
Fix regression since b25d6290c6.
2023-02-11 18:06:02 +01:00
Stefano Sabatini
051e1ed1e2 examples/Makefile.example: add note about missing entries 2023-02-11 18:04:32 +01:00
Stefano Sabatini
34ff361921 examples: apply doxy entries consistency fixes
Use consistent format for the @file field and file description.
2023-02-11 17:49:01 +01:00
Stefano Sabatini
3d4dc6aa77 examples: rename transcoding to transcode 2023-02-11 17:49:01 +01:00
Stefano Sabatini
3856f82ef9 examples: rename scaling_video to scale_video 2023-02-11 17:49:01 +01:00
Stefano Sabatini
cd8211527e examples: rename resampling audio to resample_audio 2023-02-11 17:49:01 +01:00
Stefano Sabatini
0a69ca656b examples: rename remuxing to remux 2023-02-11 17:49:01 +01:00
Stefano Sabatini
ab2ec8ef01 examples: rename qsvdec to qsv_decode 2023-02-11 17:49:01 +01:00
Stefano Sabatini
eac4324bfb examples: rename muxing to mux 2023-02-11 17:49:01 +01:00
Stefano Sabatini
7a53ae931d examples: rename metadata to show_metadata 2023-02-11 17:49:01 +01:00
Stefano Sabatini
2e4694707e examples: rename http_multiclient to avio_http_serve_files 2023-02-11 17:49:01 +01:00
Stefano Sabatini
1ae619e8ee examples: rename filtering_video to decode_filter_video 2023-02-11 17:49:01 +01:00
Stefano Sabatini
3367bd56d1 examples: rename filtering_audio to decode_filter_audio 2023-02-11 17:49:01 +01:00
Stefano Sabatini
7f5630a899 examples: rename demuxing_decoding to demux_decode
Follow general scheme VERB_OBJECT.
2023-02-11 17:49:01 +01:00
Stefano Sabatini
f0a415c7eb examples: rename avio_reading to avio_read_callback
Adopt general scheme VERB_OBJECT.
2023-02-11 17:49:01 +01:00
Marvin Scholz
4d1c9fa871 doc/examples/metadata: use av_dict_iterate
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:21:14 +01:00
Wenbin Chen
efe2b63c89 doc/examples: Add qsv_transcode example
Add qsv_transcode example which shows how to use qsv to do hardware
accelerated transcoding, also show how to dynamically set encoding
parameters.

examples:
Normal usage:
qsv_transcode input.mp4 h264_qsv output.mp4 "g 60"

Dynamic setting usage:
qsv_transcode input.mp4 hevc_qsv output.mp4 "g 60 asyne_depth 1"
100 "g 120"
This command initializes codec with gop_size 60 and change it to
120 after 100 frames

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2022-11-22 13:52:38 +08:00
Jun Zhao
3497362be1 doc/examples/muxing: Remove unnecessary ret
Remove unnecessary ret and make the code more compact

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
2022-10-29 12:26:30 +08:00
Chema Gonzalez
7adf7502b8
doc/examples/extract_mvs: add motion information
Note that the motion information includes subpel motion information

This was likely forgotten in 56bdf61baa.

Tested:
```
$ make examples -j
...
$ doc/examples/extract_mvs in.264 | head -40 | \
    csvcut -C framenum,source,flags |csvlook
| blockw | blockh |  srcx | srcy |  dstx | dsty | motion_x | motion_y | motion_scale |
| ------ | ------ | ----- | ---- | ----- | ---- | -------- | -------- | ------------ |
|     16 |     16 |    20 |   26 |     8 |    8 |       49 |       72 |            4 |
|     16 |     16 |   152 |   15 |   136 |    8 |       65 |       28 |            4 |
|     16 |      8 |   360 |    3 |   360 |    4 |        1 |       -6 |            4 |
|     16 |      8 |   360 |   13 |   360 |   12 |       -1 |        4 |            4 |
|     16 |     16 |   440 |   10 |   440 |    8 |        3 |       10 |            4 |
|      8 |     16 |   829 |    7 |   836 |    8 |      -31 |       -6 |            4 |
|      8 |     16 |   844 |    7 |   844 |    8 |       -1 |       -4 |            4 |
|     16 |     16 | 1,004 |   14 | 1,048 |    8 |     -177 |       24 |            4 |
|     16 |     16 | 1,096 |    8 | 1,096 |    8 |       -1 |        0 |            4 |
|     16 |      8 | 1,417 |   24 | 1,416 |    4 |        7 |       82 |            4 |
|     16 |      8 | 1,416 |   13 | 1,416 |   12 |        0 |        6 |            4 |
|     16 |      8 |    87 |   20 |    88 |   20 |       -7 |        0 |            4 |
|     16 |      8 |    99 |   44 |    88 |   28 |       45 |       66 |            4 |
...
```

Also:
```
$ make fate -j
...
```

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-09-23 22:42:19 +02:00
Andreas Unterweger
40f2ea971f doc/examples/transcode_aac: Bump date
Signed-off-by: Andreas Unterweger <dustsigns@gmail.com>
2022-05-02 15:01:15 +05:30
Andreas Unterweger
04642de4b4 doc/examples/transcode_aac: AAC encoder is no longer experimental
Signed-off-by: Andreas Unterweger <dustsigns@gmail.com>
2022-05-02 15:01:03 +05:30
Andreas Unterweger
3c7382e368 doc/examples/transcode_aac: Set decoder packet timebase
Previously, the default timebase caused two warnings during decoding about not being able to update timestamps for skipped and discarded samples, respectively.

Signed-off-by: Andreas Unterweger <dustsigns@gmail.com>
2022-05-02 14:59:38 +05:30
Andreas Unterweger
e13429c9c4 doc/examples/transcode_aac: Don't ignore last encoded frame
The last encoded frame is now fetched on EOF. It was previously left in the encoder and caused a "1 frame left in queue" warning.

Signed-off-by: Andreas Unterweger <dustsigns@gmail.com>
2022-05-02 14:56:41 +05:30
Zhao Zhili
d1a44f261a examples/decode_video: flush parser to fix missing frame
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2022-04-22 11:26:51 +08:00
Andreas Rheinhardt
23cb87bb3c doc/examples/muxing: Remove outdated comment
This comment only applies to the scenario in which one uses
the AVCodecContexts embedded in AVStreams. Yet this code sample
stopped doing so in 9897d9f4e074cdc6c7f2409885ddefe300f18dc7;
and the last major version bump even removed the public
AVCodecContexts in AVStreams. So just remove this comment.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-03-25 19:22:55 +01:00