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Guillaume Martres
aom-rav1e
Commits
45e2bb5e
Commit
45e2bb5e
authored
10 years ago
by
Vignesh Venkatasubramanian
Committed by
Gerrit Code Review
10 years ago
Browse files
Options
Downloads
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Merge "Changing webmdec to use libwebm"
parents
5ba44e37
dbd24710
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Changes
5
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5 changed files
examples.mk
+7
-8
7 additions, 8 deletions
examples.mk
test/test.mk
+6
-8
6 additions, 8 deletions
test/test.mk
webmdec.c
+0
-202
0 additions, 202 deletions
webmdec.c
webmdec.cc
+219
-0
219 additions, 0 deletions
webmdec.cc
webmdec.h
+31
-12
31 additions, 12 deletions
webmdec.h
with
263 additions
and
230 deletions
examples.mk
+
7
−
8
View file @
45e2bb5e
...
...
@@ -25,6 +25,11 @@ LIBWEBM_MUXER_SRCS += third_party/libwebm/mkvmuxer.cpp \
third_party/libwebm/mkvwriter.hpp
\
third_party/libwebm/webmids.hpp
LIBWEBM_PARSER_SRCS
=
third_party/libwebm/mkvparser.cpp
\
third_party/libwebm/mkvreader.cpp
\
third_party/libwebm/mkvparser.hpp
\
third_party/libwebm/mkvreader.hpp
# List of examples to build. UTILS are tools meant for distribution
# while EXAMPLES demonstrate specific portions of the API.
UTILS-$(CONFIG_DECODERS)
+=
vpxdec.c
...
...
@@ -39,14 +44,8 @@ vpxdec.SRCS += tools_common.c tools_common.h
vpxdec.SRCS
+=
y4menc.c y4menc.h
vpxdec.SRCS
+=
$(
LIBYUV_SRCS
)
ifeq
($(CONFIG_WEBM_IO),yes)
vpxdec.SRCS
+=
third_party/nestegg/halloc/halloc.h
vpxdec.SRCS
+=
third_party/nestegg/halloc/src/align.h
vpxdec.SRCS
+=
third_party/nestegg/halloc/src/halloc.c
vpxdec.SRCS
+=
third_party/nestegg/halloc/src/hlist.h
vpxdec.SRCS
+=
third_party/nestegg/halloc/src/macros.h
vpxdec.SRCS
+=
third_party/nestegg/include/nestegg/nestegg.h
vpxdec.SRCS
+=
third_party/nestegg/src/nestegg.c
vpxdec.SRCS
+=
webmdec.c webmdec.h
vpxdec.SRCS
+=
$(
LIBWEBM_PARSER_SRCS
)
vpxdec.SRCS
+=
webmdec.cc webmdec.h
endif
vpxdec.GUID
=
BA5FE66F-38DD-E034-F542-B1578C5FB950
vpxdec.DESCRIPTION
=
Full featured decoder
...
...
This diff is collapsed.
Click to expand it.
test/test.mk
+
6
−
8
View file @
45e2bb5e
...
...
@@ -43,15 +43,13 @@ LIBVPX_TEST_SRCS-yes += encode_test_driver.h
## WebM Parsing
ifeq
($(CONFIG_WEBM_IO), yes)
NESTEGG_SRCS
+=
../third_party/nestegg/halloc/halloc.h
NESTEGG_SRCS
+=
../third_party/nestegg/halloc/src/align.h
NESTEGG_SRCS
+=
../third_party/nestegg/halloc/src/halloc.c
NESTEGG_SRCS
+=
../third_party/nestegg/halloc/src/hlist.h
NESTEGG_SRCS
+=
../third_party/nestegg/include/nestegg/nestegg.h
NESTEGG_SRCS
+=
../third_party/nestegg/src/nestegg.c
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
$(
NESTEGG_SRCS
)
LIBWEBM_PARSER_SRCS
+=
../third_party/libwebm/mkvparser.cpp
LIBWEBM_PARSER_SRCS
+=
../third_party/libwebm/mkvreader.cpp
LIBWEBM_PARSER_SRCS
+=
../third_party/libwebm/mkvparser.hpp
LIBWEBM_PARSER_SRCS
+=
../third_party/libwebm/mkvreader.hpp
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
$(
LIBWEBM_PARSER_SRCS
)
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
../tools_common.h
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
../webmdec.c
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
../webmdec.c
c
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
../webmdec.h
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)
+=
webm_video_source.h
endif
...
...
This diff is collapsed.
Click to expand it.
webmdec.c
deleted
100644 → 0
+
0
−
202
View file @
5ba44e37
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include
"./webmdec.h"
#include
<stdarg.h>
#include
"third_party/nestegg/include/nestegg/nestegg.h"
static
int
nestegg_read_cb
(
void
*
buffer
,
size_t
length
,
void
*
userdata
)
{
FILE
*
f
=
userdata
;
if
(
fread
(
buffer
,
1
,
length
,
f
)
<
length
)
{
if
(
ferror
(
f
))
return
-
1
;
if
(
feof
(
f
))
return
0
;
}
return
1
;
}
static
int
nestegg_seek_cb
(
int64_t
offset
,
int
whence
,
void
*
userdata
)
{
switch
(
whence
)
{
case
NESTEGG_SEEK_SET
:
whence
=
SEEK_SET
;
break
;
case
NESTEGG_SEEK_CUR
:
whence
=
SEEK_CUR
;
break
;
case
NESTEGG_SEEK_END
:
whence
=
SEEK_END
;
break
;
};
return
fseek
(
userdata
,
(
int32_t
)
offset
,
whence
)
?
-
1
:
0
;
}
static
int64_t
nestegg_tell_cb
(
void
*
userdata
)
{
return
ftell
(
userdata
);
}
static
void
nestegg_log_cb
(
nestegg
*
context
,
unsigned
int
severity
,
char
const
*
format
,
...)
{
va_list
ap
;
va_start
(
ap
,
format
);
vfprintf
(
stderr
,
format
,
ap
);
fprintf
(
stderr
,
"
\n
"
);
va_end
(
ap
);
}
int
file_is_webm
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
)
{
uint32_t
i
,
n
;
int
track_type
=
-
1
;
int
codec_id
;
nestegg_io
io
=
{
nestegg_read_cb
,
nestegg_seek_cb
,
nestegg_tell_cb
,
0
};
nestegg_video_params
params
;
io
.
userdata
=
vpx_ctx
->
file
;
if
(
nestegg_init
(
&
webm_ctx
->
nestegg_ctx
,
io
,
NULL
,
-
1
))
goto
fail
;
if
(
nestegg_track_count
(
webm_ctx
->
nestegg_ctx
,
&
n
))
goto
fail
;
for
(
i
=
0
;
i
<
n
;
i
++
)
{
track_type
=
nestegg_track_type
(
webm_ctx
->
nestegg_ctx
,
i
);
if
(
track_type
==
NESTEGG_TRACK_VIDEO
)
break
;
else
if
(
track_type
<
0
)
goto
fail
;
}
codec_id
=
nestegg_track_codec_id
(
webm_ctx
->
nestegg_ctx
,
i
);
if
(
codec_id
==
NESTEGG_CODEC_VP8
)
{
vpx_ctx
->
fourcc
=
VP8_FOURCC
;
}
else
if
(
codec_id
==
NESTEGG_CODEC_VP9
)
{
vpx_ctx
->
fourcc
=
VP9_FOURCC
;
}
else
{
fprintf
(
stderr
,
"Not VPx video, quitting.
\n
"
);
goto
fail
;
}
webm_ctx
->
video_track
=
i
;
if
(
nestegg_track_video_params
(
webm_ctx
->
nestegg_ctx
,
i
,
&
params
))
goto
fail
;
vpx_ctx
->
framerate
.
denominator
=
0
;
vpx_ctx
->
framerate
.
numerator
=
0
;
vpx_ctx
->
width
=
params
.
width
;
vpx_ctx
->
height
=
params
.
height
;
return
1
;
fail:
webm_ctx
->
nestegg_ctx
=
NULL
;
rewind
(
vpx_ctx
->
file
);
return
0
;
}
int
webm_read_frame
(
struct
WebmInputContext
*
webm_ctx
,
uint8_t
**
buffer
,
size_t
*
bytes_in_buffer
,
size_t
*
buffer_size
)
{
if
(
webm_ctx
->
chunk
>=
webm_ctx
->
chunks
)
{
uint32_t
track
;
int
status
;
do
{
/* End of this packet, get another. */
if
(
webm_ctx
->
pkt
)
{
nestegg_free_packet
(
webm_ctx
->
pkt
);
webm_ctx
->
pkt
=
NULL
;
}
status
=
nestegg_read_packet
(
webm_ctx
->
nestegg_ctx
,
&
webm_ctx
->
pkt
);
if
(
status
<=
0
)
return
status
?
status
:
1
;
if
(
nestegg_packet_track
(
webm_ctx
->
pkt
,
&
track
))
return
-
1
;
}
while
(
track
!=
webm_ctx
->
video_track
);
if
(
nestegg_packet_count
(
webm_ctx
->
pkt
,
&
webm_ctx
->
chunks
))
return
-
1
;
webm_ctx
->
chunk
=
0
;
}
if
(
nestegg_packet_data
(
webm_ctx
->
pkt
,
webm_ctx
->
chunk
,
buffer
,
bytes_in_buffer
))
{
return
-
1
;
}
webm_ctx
->
chunk
++
;
return
0
;
}
int
webm_guess_framerate
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
)
{
uint32_t
i
;
uint64_t
tstamp
=
0
;
/* Check to see if we can seek before we parse any data. */
if
(
nestegg_track_seek
(
webm_ctx
->
nestegg_ctx
,
webm_ctx
->
video_track
,
0
))
{
fprintf
(
stderr
,
"Failed to guess framerate (no Cues), set to 30fps.
\n
"
);
vpx_ctx
->
framerate
.
numerator
=
30
;
vpx_ctx
->
framerate
.
denominator
=
1
;
return
0
;
}
/* Guess the framerate. Read up to 1 second, or 50 video packets,
* whichever comes first.
*/
for
(
i
=
0
;
tstamp
<
1000000000
&&
i
<
50
;)
{
nestegg_packet
*
pkt
;
uint32_t
track
;
if
(
nestegg_read_packet
(
webm_ctx
->
nestegg_ctx
,
&
pkt
)
<=
0
)
break
;
nestegg_packet_track
(
pkt
,
&
track
);
if
(
track
==
webm_ctx
->
video_track
)
{
nestegg_packet_tstamp
(
pkt
,
&
tstamp
);
++
i
;
}
nestegg_free_packet
(
pkt
);
}
if
(
nestegg_track_seek
(
webm_ctx
->
nestegg_ctx
,
webm_ctx
->
video_track
,
0
))
goto
fail
;
vpx_ctx
->
framerate
.
numerator
=
(
i
-
1
)
*
1000000
;
vpx_ctx
->
framerate
.
denominator
=
(
int
)(
tstamp
/
1000
);
return
0
;
fail:
nestegg_destroy
(
webm_ctx
->
nestegg_ctx
);
webm_ctx
->
nestegg_ctx
=
NULL
;
rewind
(
vpx_ctx
->
file
);
return
1
;
}
void
webm_free
(
struct
WebmInputContext
*
webm_ctx
)
{
if
(
webm_ctx
&&
webm_ctx
->
nestegg_ctx
)
{
if
(
webm_ctx
->
pkt
)
nestegg_free_packet
(
webm_ctx
->
pkt
);
nestegg_destroy
(
webm_ctx
->
nestegg_ctx
);
}
}
This diff is collapsed.
Click to expand it.
webmdec.cc
0 → 100644
+
219
−
0
View file @
45e2bb5e
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include
"./webmdec.h"
#include
<cstring>
#include
<cstdio>
#include
"third_party/libwebm/mkvparser.hpp"
#include
"third_party/libwebm/mkvreader.hpp"
namespace
{
void
reset
(
struct
WebmInputContext
*
const
webm_ctx
)
{
if
(
webm_ctx
->
reader
!=
NULL
)
{
mkvparser
::
MkvReader
*
const
reader
=
reinterpret_cast
<
mkvparser
::
MkvReader
*>
(
webm_ctx
->
reader
);
delete
reader
;
}
if
(
webm_ctx
->
segment
!=
NULL
)
{
mkvparser
::
Segment
*
const
segment
=
reinterpret_cast
<
mkvparser
::
Segment
*>
(
webm_ctx
->
segment
);
delete
segment
;
}
if
(
webm_ctx
->
buffer
!=
NULL
)
{
delete
[]
webm_ctx
->
buffer
;
}
webm_ctx
->
reader
=
NULL
;
webm_ctx
->
segment
=
NULL
;
webm_ctx
->
buffer
=
NULL
;
webm_ctx
->
cluster
=
NULL
;
webm_ctx
->
block_entry
=
NULL
;
webm_ctx
->
block
=
NULL
;
webm_ctx
->
block_frame_index
=
0
;
webm_ctx
->
video_track_index
=
0
;
webm_ctx
->
timestamp_ns
=
0
;
}
void
get_first_cluster
(
struct
WebmInputContext
*
const
webm_ctx
)
{
mkvparser
::
Segment
*
const
segment
=
reinterpret_cast
<
mkvparser
::
Segment
*>
(
webm_ctx
->
segment
);
const
mkvparser
::
Cluster
*
const
cluster
=
segment
->
GetFirst
();
webm_ctx
->
cluster
=
cluster
;
}
void
rewind_and_reset
(
struct
WebmInputContext
*
const
webm_ctx
,
struct
VpxInputContext
*
const
vpx_ctx
)
{
rewind
(
vpx_ctx
->
file
);
reset
(
webm_ctx
);
}
}
// namespace
int
file_is_webm
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
)
{
mkvparser
::
MkvReader
*
const
reader
=
new
mkvparser
::
MkvReader
(
vpx_ctx
->
file
);
webm_ctx
->
reader
=
reader
;
mkvparser
::
EBMLHeader
header
;
long
long
pos
=
0
;
if
(
header
.
Parse
(
reader
,
pos
)
<
0
)
{
rewind_and_reset
(
webm_ctx
,
vpx_ctx
);
return
0
;
}
mkvparser
::
Segment
*
segment
;
if
(
mkvparser
::
Segment
::
CreateInstance
(
reader
,
pos
,
segment
))
{
rewind_and_reset
(
webm_ctx
,
vpx_ctx
);
return
0
;
}
webm_ctx
->
segment
=
segment
;
if
(
segment
->
Load
()
<
0
)
{
rewind_and_reset
(
webm_ctx
,
vpx_ctx
);
return
0
;
}
const
mkvparser
::
Tracks
*
const
tracks
=
segment
->
GetTracks
();
const
mkvparser
::
VideoTrack
*
video_track
=
NULL
;
for
(
unsigned
long
i
=
0
;
i
<
tracks
->
GetTracksCount
();
++
i
)
{
const
mkvparser
::
Track
*
const
track
=
tracks
->
GetTrackByIndex
(
i
);
if
(
track
->
GetType
()
==
mkvparser
::
Track
::
kVideo
)
{
video_track
=
static_cast
<
const
mkvparser
::
VideoTrack
*>
(
track
);
webm_ctx
->
video_track_index
=
track
->
GetNumber
();
break
;
}
}
if
(
video_track
==
NULL
)
{
rewind_and_reset
(
webm_ctx
,
vpx_ctx
);
return
0
;
}
if
(
!
strncmp
(
video_track
->
GetCodecId
(),
"V_VP8"
,
5
))
{
vpx_ctx
->
fourcc
=
VP8_FOURCC
;
}
else
if
(
!
strncmp
(
video_track
->
GetCodecId
(),
"V_VP9"
,
5
))
{
vpx_ctx
->
fourcc
=
VP9_FOURCC
;
}
else
{
rewind_and_reset
(
webm_ctx
,
vpx_ctx
);
return
0
;
}
vpx_ctx
->
framerate
.
denominator
=
0
;
vpx_ctx
->
framerate
.
numerator
=
0
;
vpx_ctx
->
width
=
video_track
->
GetWidth
();
vpx_ctx
->
height
=
video_track
->
GetHeight
();
get_first_cluster
(
webm_ctx
);
return
1
;
}
int
webm_read_frame
(
struct
WebmInputContext
*
webm_ctx
,
uint8_t
**
buffer
,
size_t
*
bytes_in_buffer
,
size_t
*
buffer_size
)
{
mkvparser
::
Segment
*
const
segment
=
reinterpret_cast
<
mkvparser
::
Segment
*>
(
webm_ctx
->
segment
);
const
mkvparser
::
Cluster
*
cluster
=
reinterpret_cast
<
const
mkvparser
::
Cluster
*>
(
webm_ctx
->
cluster
);
const
mkvparser
::
Block
*
block
=
reinterpret_cast
<
const
mkvparser
::
Block
*>
(
webm_ctx
->
block
);
const
mkvparser
::
BlockEntry
*
block_entry
=
reinterpret_cast
<
const
mkvparser
::
BlockEntry
*>
(
webm_ctx
->
block_entry
);
bool
block_entry_eos
=
false
;
do
{
long
status
=
0
;
bool
get_new_block
=
false
;
if
(
block_entry
==
NULL
&&
!
block_entry_eos
)
{
status
=
cluster
->
GetFirst
(
block_entry
);
get_new_block
=
true
;
}
else
if
(
block_entry_eos
||
block_entry
->
EOS
())
{
cluster
=
segment
->
GetNext
(
cluster
);
if
(
cluster
==
NULL
||
cluster
->
EOS
())
{
*
bytes_in_buffer
=
0
;
return
1
;
}
status
=
cluster
->
GetFirst
(
block_entry
);
block_entry_eos
=
false
;
get_new_block
=
true
;
}
else
if
(
block
==
NULL
||
webm_ctx
->
block_frame_index
==
block
->
GetFrameCount
()
||
block
->
GetTrackNumber
()
!=
webm_ctx
->
video_track_index
)
{
status
=
cluster
->
GetNext
(
block_entry
,
block_entry
);
if
(
block_entry
==
NULL
||
block_entry
->
EOS
())
{
block_entry_eos
=
true
;
continue
;
}
get_new_block
=
true
;
}
if
(
status
)
{
return
-
1
;
}
if
(
get_new_block
)
{
block
=
block_entry
->
GetBlock
();
webm_ctx
->
block_frame_index
=
0
;
}
}
while
(
block
->
GetTrackNumber
()
!=
webm_ctx
->
video_track_index
||
block_entry_eos
);
webm_ctx
->
cluster
=
cluster
;
webm_ctx
->
block_entry
=
block_entry
;
webm_ctx
->
block
=
block
;
const
mkvparser
::
Block
::
Frame
&
frame
=
block
->
GetFrame
(
webm_ctx
->
block_frame_index
);
++
webm_ctx
->
block_frame_index
;
if
(
frame
.
len
>
static_cast
<
long
>
(
*
buffer_size
))
{
delete
[]
*
buffer
;
*
buffer
=
new
uint8_t
[
frame
.
len
];
if
(
*
buffer
==
NULL
)
{
return
-
1
;
}
*
buffer_size
=
frame
.
len
;
webm_ctx
->
buffer
=
*
buffer
;
}
*
bytes_in_buffer
=
frame
.
len
;
webm_ctx
->
timestamp_ns
=
block
->
GetTime
(
cluster
);
mkvparser
::
MkvReader
*
const
reader
=
reinterpret_cast
<
mkvparser
::
MkvReader
*>
(
webm_ctx
->
reader
);
return
frame
.
Read
(
reader
,
*
buffer
)
?
-
1
:
0
;
}
int
webm_guess_framerate
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
)
{
uint32_t
i
=
0
;
uint8_t
*
buffer
=
NULL
;
size_t
bytes_in_buffer
=
0
;
size_t
buffer_size
=
0
;
while
(
webm_ctx
->
timestamp_ns
<
1000000000
&&
i
<
50
)
{
if
(
webm_read_frame
(
webm_ctx
,
&
buffer
,
&
bytes_in_buffer
,
&
buffer_size
))
{
break
;
}
++
i
;
}
vpx_ctx
->
framerate
.
numerator
=
(
i
-
1
)
*
1000000
;
vpx_ctx
->
framerate
.
denominator
=
static_cast
<
int
>
(
webm_ctx
->
timestamp_ns
/
1000
);
delete
[]
buffer
;
get_first_cluster
(
webm_ctx
);
webm_ctx
->
block
=
NULL
;
webm_ctx
->
block_entry
=
NULL
;
webm_ctx
->
block_frame_index
=
0
;
webm_ctx
->
timestamp_ns
=
0
;
return
0
;
}
void
webm_free
(
struct
WebmInputContext
*
webm_ctx
)
{
reset
(
webm_ctx
);
}
This diff is collapsed.
Click to expand it.
webmdec.h
+
31
−
12
View file @
45e2bb5e
...
...
@@ -16,34 +16,53 @@
extern
"C"
{
#endif
struct
nestegg
;
struct
nestegg_packet
;
struct
VpxInputContext
;
struct
WebmInputContext
{
uint32_t
chunk
;
uint32_t
chunks
;
uint32_t
video_track
;
struct
nestegg
*
nestegg_ctx
;
struct
nestegg_packet
*
pkt
;
void
*
reader
;
void
*
segment
;
uint8_t
*
buffer
;
const
void
*
cluster
;
const
void
*
block_entry
;
const
void
*
block
;
int
block_frame_index
;
int
video_track_index
;
uint64_t
timestamp_ns
;
};
// Checks if the input is a WebM file. If so, initializes WebMInputContext so
// that webm_read_frame can be called to retrieve a video frame.
// Returns 1 on success and 0 on failure or input is not WebM file.
// TODO(vigneshv): Refactor this function into two smaller functions specific
// to their task.
int
file_is_webm
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
);
/* Reads a WebM video frame. Return values:
* 0 - Success
* 1 - End of File
* -1 - Error
*/
// Reads a WebM Video Frame. Memory for the buffer is created, owned and managed
// by this function. For the first call, |buffer| should be NULL and
// |*bytes_in_buffer| should be 0. Once all the frames are read and used,
// webm_free() should be called, otherwise there will be a leak.
// Parameters:
// webm_ctx - WebmInputContext object
// buffer - pointer where the frame data will be filled.
// bytes_in_buffer - pointer to buffer size.
// buffer_size - unused TODO(vigneshv): remove this
// Return values:
// 0 - Success
// 1 - End of Stream
// -1 - Error
// TODO(vigneshv): Make the return values consistent across all functions in
// this file.
int
webm_read_frame
(
struct
WebmInputContext
*
webm_ctx
,
uint8_t
**
buffer
,
size_t
*
bytes_in_buffer
,
size_t
*
buffer_size
);
// Guesses the frame rate of the input file based on the container timestamps.
int
webm_guess_framerate
(
struct
WebmInputContext
*
webm_ctx
,
struct
VpxInputContext
*
vpx_ctx
);
// Resets the WebMInputContext.
void
webm_free
(
struct
WebmInputContext
*
webm_ctx
);
#ifdef __cplusplus
...
...
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