Hi all!
I'm trying to use *swresample *library to resample audio format from
AV_SAMPLE_FMT_U8 to AV_SAMPLE_FMT_S16.
My file is:
/>ffmpeg -i D:\cam_md_start_1.wav/
/ffmpeg version 0.11.5 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2014 01:10:12 with gcc 4.9-win32 (GCC)
configuration: --enable-memalign-hack --arch=x86_64
--target-os=mingw32 --cross-prefix=x86_64-w64-mingw32- --disable-ffprobe
--disable-ffplay --build-suffix=-ovs-3.1 --enable-shared
--disable-static --enable-libass
--prefix=/home/gzh/sdk/mingw-x86_64/ffmpeg-ovs-3.1
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from 'D:\cam_md_start_1.wav':
Duration: 00:00:01.49, bitrate: 176 kb/s
Stream #0:0: Audio: *pcm_u8* ([1][0][0][0] / 0x0001), 22050 Hz, 1
channels, u8, 176 kb/s
At least one output file must be specified
d:\ngp.sdk64\ffmpeg-ovs-3.1\bin>/
The code looks like this:
/std::unique_ptr<SwrContext, SwrContextDtor> m_swr;//
// m_swr.reset(swr_alloc());//
// av_opt_set_int(m_swr.get(), "in_channel_layout",
frame->channel_layout, 0);//
// av_opt_set_int(m_swr.get(), "out_channel_layout",
frame->channel_layout, 0);//
// av_opt_set_int(m_swr.get(), "in_sample_rate",
frame->sample_rate, 0);//
// av_opt_set_int(m_swr.get(), "out_sample_rate",
frame->sample_rate, 0);//
// av_opt_set_sample_fmt(m_swr.get(), "in_sample_fmt",
(AVSampleFormat)frame->format, 0);//
// av_opt_set_sample_fmt(m_swr.get(), "out_sample_fmt",
AV_SAMPLE_FMT_S16, 0);//
// swr_init(m_swr.get());//
//std::unique_ptr<AVFrame, AVFrameDtor> converted(av_frame_alloc());//
// converted->channel_layout = frame->channel_layout;//
// converted->sample_rate = frame->sample_rate;//
// converted->format = AV_SAMPLE_FMT_S16;//
// int err = swr_convert_frame(m_swr.get(), converted.get(),
frame.get());/
The problem is that swr_convert_frame returns value -1 and doesn't
convert the frame.
I have attached input frame as frame.txt and output as converted.txt.
Please, could someone help me to understand why swr_convert_frame fails
to convert format?
--
AxxonSoft
Rizvan Kuliev
Programmer
[email protected] <mailto:[email protected]>
<http://axxonsoft.com> <http://www.youtube.com/user/ITVAXXON>
<http://www.linkedin.com/groups/FREE-16-channel-VMS-from-4133198>
<http://www.facebook.com/axxonsoft>
<https://twitter.com/#%21/AxxonSoft_EN> <skype:skype.itv.ru?call>
CONFIDENTIALITY NOTICE <http://www.axxonsoft.com/disclaimer.php>
- frame unique_ptr {data=0x00000256dc92d260 {0x00000256dc938c60
"}~~~~~~}}}~~~~~~~~~~~~~~~~~~ЂЂЂЂ~~~~~~~~~~~~~~}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}}}}}}}}~~~~~~~~~~~}~~~~~}~~~~~~~~~~~~~ЂЂЂЂЂЂ...,
...} ...} std::unique_ptr<AVFrame,NMMSS::AVFrameDtor> &
- [ptr] 0x00000256dc92d260 {data=0x00000256dc92d260
{0x00000256dc938c60
"}~~~~~~}}}~~~~~~~~~~~~~~~~~~ЂЂЂЂ~~~~~~~~~~~~~~}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}}}}}}}}~~~~~~~~~~~}~~~~~}~~~~~~~~~~~~~ЂЂЂЂЂЂ...,
...} ...} AVFrame *
+ data 0x00000256dc92d260 {0x00000256dc938c60
"}~~~~~~}}}~~~~~~~~~~~~~~~~~~ЂЂЂЂ~~~~~~~~~~~~~~}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}}}}}}}}~~~~~~~~~~~}~~~~~}~~~~~~~~~~~~~ЂЂЂЂЂЂ...,
...} unsigned char *[8]
+ linesize 0x00000256dc92d2a0 {4096, 0, 0, 0, 0, 0, 0, 0}
int[8]
+ extended_data 0x00000256dc92d260 {0x00000256dc938c60
"}~~~~~~}}}~~~~~~~~~~~~~~~~~~ЂЂЂЂ~~~~~~~~~~~~~~}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}}}}}}}}~~~~~~~~~~~}~~~~~}~~~~~~~~~~~~~ЂЂЂЂЂЂ...}
unsigned char * *
width 0 int
height 0 int
nb_samples 4096 int
format 0 int
key_frame 1 int
pict_type AV_PICTURE_TYPE_NONE (0) AVPictureType
+ base 0x00000256dc92d2e0 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, ...} unsigned char
*[8]
+ sample_aspect_ratio {num=0 den=1 } AVRational
pts -9223372036854775808 __int64
pkt_pts 0 __int64
pkt_dts 0 __int64
coded_picture_number 0 int
display_picture_number 0 int
quality 0 int
reference 0 int
+ qscale_table 0x0000000000000000 <NULL> char *
qstride 0 int
qscale_type 0 int
+ mbskip_table 0x0000000000000000 <NULL> unsigned char *
+ motion_val 0x00000256dc92d368 {0x0000000000000000 {???,
???}, 0x0000000000000000 {???, ???}} short[2] *[2]
+ mb_type 0x0000000000000000 {???} unsigned int *
+ dct_coeff 0x0000000000000000 {???} short *
+ ref_index 0x00000256dc92d388 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>} char *[2]
opaque 0x0000000000000000 void *
+ error 0x00000256dc92d3a0 {0, 0, 0, 0, 0, 0, 0, 0}
unsigned __int64[8]
type 1 int
repeat_pict 0 int
interlaced_frame 0 int
top_field_first 0 int
palette_has_changed 0 int
buffer_hints 0 int
+ pan_scan 0x0000000000000000 <NULL> AVPanScan *
reordered_opaque -9223372036854775808 __int64
hwaccel_picture_private 0x0000000000000000 void *
+ owner 0x0000000000000000 <NULL> AVCodecContext *
thread_opaque 0x0000000000000000 void *
motion_subsample_log2 0 '\0' unsigned char
sample_rate 22050 int
channel_layout 0 unsigned __int64
+ buf 0x00000256dc92d430 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, ...} AVBufferRef
*[8]
+ extended_buf 0x0000000000000000 {???} AVBufferRef * *
nb_extended_buf 0 int
+ side_data 0x0000000000000000 {???} AVFrameSideData
* *
nb_side_data 0 int
flags 0 int
color_range AVCOL_RANGE_UNSPECIFIED (0) AVColorRange
color_primaries AVCOL_PRI_UNSPECIFIED (2) AVColorPrimaries
color_trc AVCOL_TRC_UNSPECIFIED (2)
AVColorTransferCharacteristic
colorspace AVCOL_SPC_UNSPECIFIED (2) AVColorSpace
chroma_location AVCHROMA_LOC_UNSPECIFIED (0) AVChromaLocation
best_effort_timestamp 0 __int64
pkt_pos -1 __int64
pkt_duration 0 __int64
metadata 0x0000000000000000 <NULL> AVDictionary *
decode_error_flags 0 int
channels 1 int
pkt_size 4096 int
+ qp_table_buf 0x0000000000000000 <NULL> AVBufferRef *
+ frame unique_ptr {data=0x00000256dc92d260 {0x00000256dc92aec0
"}~~~~~~}}}~~~~~~~~~~~~~~~~~~ЂЂЂЂ~~~~~~~~~~~~~~}}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}}}}}}}}~~~~~~~~~~~}~~~~~}~~~~~~~~~~~~~ЂЂЂЂЂЂ...,
...} ...} std::unique_ptr<AVFrame,NMMSS::AVFrameDtor> &
formatContext identifier "formatContext" is undefined
codecContext identifier "codecContext" is undefined
m_codecContext identifier "m_codecContext" is undefined
- converted unique_ptr {data=0x00000256dc939c80
{0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, 0x0000000000000000
<NULL>, ...} ...} std::unique_ptr<AVFrame,NMMSS::AVFrameDtor>
- [ptr] 0x00000256dc939c80 {data=0x00000256dc939c80
{0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, 0x0000000000000000
<NULL>, ...} ...} AVFrame *
+ data 0x00000256dc939c80 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, ...} unsigned char
*[8]
+ linesize 0x00000256dc939cc0 {0, 0, 0, 0, 0, 0, 0, 0}
int[8]
+ extended_data 0x00000256dc939c80 {0x0000000000000000 <NULL>}
unsigned char * *
width 0 int
height 0 int
nb_samples 0 int
format 1 int
key_frame 1 int
pict_type AV_PICTURE_TYPE_NONE (0) AVPictureType
+ base 0x00000256dc939d00 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, ...} unsigned char
*[8]
+ sample_aspect_ratio {num=0 den=1 } AVRational
pts -9223372036854775808 __int64
pkt_pts -9223372036854775808 __int64
pkt_dts -9223372036854775808 __int64
coded_picture_number 0 int
display_picture_number 0 int
quality 0 int
reference 0 int
+ qscale_table 0x0000000000000000 <NULL> char *
qstride 0 int
qscale_type 0 int
+ mbskip_table 0x0000000000000000 <NULL> unsigned char *
+ motion_val 0x00000256dc939d88 {0x0000000000000000 {???,
???}, 0x0000000000000000 {???, ???}} short[2] *[2]
+ mb_type 0x0000000000000000 {???} unsigned int *
+ dct_coeff 0x0000000000000000 {???} short *
+ ref_index 0x00000256dc939da8 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>} char *[2]
opaque 0x0000000000000000 void *
+ error 0x00000256dc939dc0 {0, 0, 0, 0, 0, 0, 0, 0}
unsigned __int64[8]
type 0 int
repeat_pict 0 int
interlaced_frame 0 int
top_field_first 0 int
palette_has_changed 0 int
buffer_hints 0 int
+ pan_scan 0x0000000000000000 <NULL> AVPanScan *
reordered_opaque 0 __int64
hwaccel_picture_private 0x0000000000000000 void *
+ owner 0x0000000000000000 <NULL> AVCodecContext *
thread_opaque 0x0000000000000000 void *
motion_subsample_log2 0 '\0' unsigned char
sample_rate 22050 int
channel_layout 0 unsigned __int64
+ buf 0x00000256dc939e50 {0x0000000000000000 <NULL>,
0x0000000000000000 <NULL>, 0x0000000000000000 <NULL>, ...} AVBufferRef
*[8]
+ extended_buf 0x0000000000000000 {???} AVBufferRef * *
nb_extended_buf 0 int
+ side_data 0x0000000000000000 {???} AVFrameSideData
* *
nb_side_data 0 int
flags 0 int
color_range AVCOL_RANGE_UNSPECIFIED (0) AVColorRange
color_primaries AVCOL_PRI_UNSPECIFIED (2) AVColorPrimaries
color_trc AVCOL_TRC_UNSPECIFIED (2)
AVColorTransferCharacteristic
colorspace AVCOL_SPC_UNSPECIFIED (2) AVColorSpace
chroma_location AVCHROMA_LOC_UNSPECIFIED (0) AVChromaLocation
best_effort_timestamp -9223372036854775808 __int64
pkt_pos -1 __int64
pkt_duration 0 __int64
metadata 0x0000000000000000 <NULL> AVDictionary *
decode_error_flags 0 int
channels 0 int
pkt_size -1 int
+ qp_table_buf 0x0000000000000000 <NULL> AVBufferRef *
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