| Message ID | 1695891619-32393-10-git-send-email-shengjiu.wang@nxp.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add audio support in v4l2 framework | expand |
Hi Shengjiu, On 28/09/2023 11:00, Shengjiu Wang wrote: > The audio sample format definition is from alsa, > the header file is include/uapi/sound/asound.h, but > don't include this header file directly, because in > user space, there is another copy in alsa-lib. > There will be conflict in userspace for include > videodev2.h & asound.h and asoundlib.h > > Here still use the fourcc format. > > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> > --- > .../userspace-api/media/v4l/pixfmt-audio.rst | 277 ++++++++++++++++++ > .../userspace-api/media/v4l/pixfmt.rst | 1 + > drivers/media/v4l2-core/v4l2-ioctl.c | 51 ++++ > include/uapi/linux/videodev2.h | 56 ++++ > 4 files changed, 385 insertions(+) > create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-audio.rst I think it would make more sense if this patch came after 07/11, so swap this and the previous patch around. > > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-audio.rst b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst > new file mode 100644 > index 000000000000..6ff114dfc2d1 > --- /dev/null > +++ b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst > @@ -0,0 +1,277 @@ > +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later > + > +.. _pixfmt-audio: > + > +************* > +Audio Formats > +************* > + > +These formats are used for :ref:`audiomem2mem` interface only. > + > +.. tabularcolumns:: |p{5.8cm}|p{1.2cm}|p{10.3cm}| > + > +.. cssclass:: longtable > + > +.. flat-table:: Audio Format > + :header-rows: 1 > + :stub-columns: 0 > + :widths: 3 1 4 > + > + * - Identifier > + - Code > + - Details > + * .. _V4L2-AUDIO-FMT-S8: > + > + - ``V4L2_AUDIO_FMT_S8`` > + - 'S8' > + - Correspond to SNDRV_PCM_FORMAT_S8 in ALSA Correspond -> Corresponds (fix everywhere below) > + * .. _V4L2-AUDIO-FMT-U8: > + > + - ``V4L2_AUDIO_FMT_U8`` > + - 'U8' > + - Correspond to SNDRV_PCM_FORMAT_U8 in ALSA > + * .. _V4L2-AUDIO-FMT-S16-LE: > + > + - ``V4L2_AUDIO_FMT_S16_LE`` > + - 'S16_LE' > + - Correspond to SNDRV_PCM_FORMAT_S16_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S16-BE: > + > + - ``V4L2_AUDIO_FMT_S16_BE`` > + - 'S16_BE' > + - Correspond to SNDRV_PCM_FORMAT_S16_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U16-LE: > + > + - ``V4L2_AUDIO_FMT_U16_LE`` > + - 'U16_LE' > + - Correspond to SNDRV_PCM_FORMAT_U16_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U16-BE: > + > + - ``V4L2_AUDIO_FMT_U16_BE`` > + - 'U16_BE' > + - Correspond to SNDRV_PCM_FORMAT_U16_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-LE: > + > + - ``V4L2_AUDIO_FMT_S24_LE`` > + - 'S24_LE' > + - Correspond to SNDRV_PCM_FORMAT_S24_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-BE: > + > + - ``V4L2_AUDIO_FMT_S24_BE`` > + - 'S24_BE' > + - Correspond to SNDRV_PCM_FORMAT_S24_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-LE: > + > + - ``V4L2_AUDIO_FMT_U24_LE`` > + - 'U24_LE' > + - Correspond to SNDRV_PCM_FORMAT_U24_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-BE: > + > + - ``V4L2_AUDIO_FMT_U24_BE`` > + - 'U24_BE' > + - Correspond to SNDRV_PCM_FORMAT_U24_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S32-LE: > + > + - ``V4L2_AUDIO_FMT_S32_LE`` > + - 'S32_LE' > + - Correspond to SNDRV_PCM_FORMAT_S32_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S32-BE: > + > + - ``V4L2_AUDIO_FMT_S32_BE`` > + - 'S32_BE' > + - Correspond to SNDRV_PCM_FORMAT_S32_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U32-LE: > + > + - ``V4L2_AUDIO_FMT_U32_LE`` > + - 'U32_LE' > + - Correspond to SNDRV_PCM_FORMAT_U32_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U32-BE: > + > + - ``V4L2_AUDIO_FMT_U32_BE`` > + - 'U32_BE' > + - Correspond to SNDRV_PCM_FORMAT_U32_BE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT-LE: > + > + - ``V4L2_AUDIO_FMT_FLOAT_LE`` > + - 'FLOAT_LE' > + - Correspond to SNDRV_PCM_FORMAT_FLOAT_LE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT-BE: > + > + - ``V4L2_AUDIO_FMT_FLOAT_BE`` > + - 'FLOAT_BE' > + - Correspond to SNDRV_PCM_FORMAT_FLOAT_BE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT64-LE: > + > + - ``V4L2_AUDIO_FMT_FLOAT64_LE`` > + - 'FLOAT64_LE' > + - Correspond to SNDRV_PCM_FORMAT_FLOAT64_LE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT64-BE: > + > + - ``V4L2_AUDIO_FMT_FLOAT64_BE`` > + - 'FLOAT64_BE' > + - Correspond to SNDRV_PCM_FORMAT_FLOAT64_BE in ALSA > + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-LE: > + > + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE`` > + - 'IEC958_SUBFRAME_LE' > + - Correspond to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE in ALSA > + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-BE: > + > + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE`` > + - 'IEC958_SUBFRAME_BE' > + - Correspond to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE in ALSA > + * .. _V4L2-AUDIO-FMT-MU-LAW: > + > + - ``V4L2_AUDIO_FMT_MU_LAW`` > + - 'MU_LAW' > + - Correspond to SNDRV_PCM_FORMAT_MU_LAW in ALSA > + * .. _V4L2-AUDIO-FMT-A-LAW: > + > + - ``V4L2_AUDIO_FMT_A_LAW`` > + - 'A_LAW' > + - Correspond to SNDRV_PCM_FORMAT_A_LAW in ALSA > + * .. _V4L2-AUDIO-FMT-IMA-ADPCM: > + > + - ``V4L2_AUDIO_FMT_IMA_ADPCM`` > + - 'IMA_ADPCM' > + - Correspond to SNDRV_PCM_FORMAT_IMA_ADPCM in ALSA > + * .. _V4L2-AUDIO-FMT-MPEG: > + > + - ``V4L2_AUDIO_FMT_MPEG`` > + - 'MPEG' > + - Correspond to SNDRV_PCM_FORMAT_MPEG in ALSA > + * .. _V4L2-AUDIO-FMT-GSM: > + > + - ``V4L2_AUDIO_FMT_GSM`` > + - 'GSM' > + - Correspond to SNDRV_PCM_FORMAT_GSM in ALSA > + * .. _V4L2-AUDIO-FMT-S20-LE: > + > + - ``V4L2_AUDIO_FMT_S20_LE`` > + - 'S20_LE' > + - Correspond to SNDRV_PCM_FORMAT_S20_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-BE: > + > + - ``V4L2_AUDIO_FMT_S20_BE`` > + - 'S20_BE' > + - Correspond to SNDRV_PCM_FORMAT_S20_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-LE: > + > + - ``V4L2_AUDIO_FMT_U20_LE`` > + - 'U20_LE' > + - Correspond to SNDRV_PCM_FORMAT_U20_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-BE: > + > + - ``V4L2_AUDIO_FMT_U20_BE`` > + - 'U20_BE' > + - Correspond to SNDRV_PCM_FORMAT_U20_BE in ALSA > + * .. _V4L2-AUDIO-FMT-SPECIAL: > + > + - ``V4L2_AUDIO_FMT_SPECIAL`` > + - 'SPECIAL' > + - Correspond to SNDRV_PCM_FORMAT_SPECIAL in ALSA In alsa it says: /* FIXME: the following format is not defined properly yet */ [SNDRV_PCM_FORMAT_SPECIAL] = { .le = -1, .signd = -1, }, Which suggests to me that we should just skip it. > + * .. _V4L2-AUDIO-FMT-S24-3LE: > + > + - ``V4L2_AUDIO_FMT_S24_3LE`` > + - 'S24_3LE' > + - Correspond to SNDRV_PCM_FORMAT_S24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-3BE: > + > + - ``V4L2_AUDIO_FMT_S24_3BE`` > + - 'S24_3BE' > + - Correspond to SNDRV_PCM_FORMAT_S24_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-3LE: > + > + - ``V4L2_AUDIO_FMT_U24_3LE`` > + - 'U24_3LE' > + - Correspond to SNDRV_PCM_FORMAT_U24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-3BE: > + > + - ``V4L2_AUDIO_FMT_U24_3BE`` > + - 'U24_3BE' > + - Correspond to SNDRV_PCM_FORMAT_U24_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-3LE: > + > + - ``V4L2_AUDIO_FMT_S20_3LE`` > + - 'S20_3LE' > + - Correspond to SNDRV_PCM_FORMAT_S24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-3BE: > + > + - ``V4L2_AUDIO_FMT_S20_3BE`` > + - 'S20_3BE' > + - Correspond to SNDRV_PCM_FORMAT_S20_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-3LE: > + > + - ``V4L2_AUDIO_FMT_U20_3LE`` > + - 'U20_3LE' > + - Correspond to SNDRV_PCM_FORMAT_U20_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-3BE: > + > + - ``V4L2_AUDIO_FMT_U20_3BE`` > + - 'U20_3BE' > + - Correspond to SNDRV_PCM_FORMAT_U20_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-S18-3LE: > + > + - ``V4L2_AUDIO_FMT_S18_3LE`` > + - 'S18_3LE' > + - Correspond to SNDRV_PCM_FORMAT_S18_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S18-3BE: > + > + - ``V4L2_AUDIO_FMT_S18_3BE`` > + - 'S18_3BE' > + - Correspond to SNDRV_PCM_FORMAT_S18_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U18-3LE: > + > + - ``V4L2_AUDIO_FMT_U18_3LE`` > + - 'U18_3LE' > + - Correspond to SNDRV_PCM_FORMAT_U18_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U18-3BE: > + > + - ``V4L2_AUDIO_FMT_U18_3BE`` > + - 'U18_3BE' > + - Correspond to SNDRV_PCM_FORMAT_U18_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-G723-24: > + > + - ``V4L2_AUDIO_FMT_G723_24`` > + - 'G723_24' > + - Correspond to SNDRV_PCM_FORMAT_G723_24 in ALSA > + * .. _V4L2-AUDIO-FMT-G723-24-1B: > + > + - ``V4L2_AUDIO_FMT_G723_24_1B`` > + - 'G723_24_1B' > + - Correspond to SNDRV_PCM_FORMAT_G723_24_1B in ALSA > + * .. _V4L2-AUDIO-FMT-G723-40: > + > + - ``V4L2_AUDIO_FMT_G723_40`` > + - 'G723_40' > + - Correspond to SNDRV_PCM_FORMAT_G723_40 in ALSA > + * .. _V4L2-AUDIO-FMT-G723-40-1B: > + > + - ``V4L2_AUDIO_FMT_G723_40_1B`` > + - 'G723_40_1B' > + - Correspond to SNDRV_PCM_FORMAT_G723_40_1B in ALSA > + * .. _V4L2-AUDIO-FMT-DSD-U8: > + > + - ``V4L2_AUDIO_FMT_DSD-U8`` > + - 'DSD_U8' > + - Correspond to SNDRV_PCM_FORMAT_DSD_U8 in ALSA > + * .. _V4L2-AUDIO-FMT-DSD-U16-LE: > + > + - ``V4L2_AUDIO_FMT_DSD-U16-LE`` > + - 'DSD_U16_LE' > + - Correspond to SNDRV_PCM_FORMAT_DSD_U16_LE in ALSA > + * .. _V4L2-AUDIO-FMT-DSD-U32-LE: > + > + - ``V4L2_AUDIO_FMT_DSD-U32-LE`` > + - 'DSD_U32_LE' > + - Correspond to SNDRV_PCM_FORMAT_DSD_U32_LE in ALSA > + * .. _V4L2-AUDIO-FMT-DSD-U16-BE: > + > + - ``V4L2_AUDIO_FMT_DSD-U16-BE`` > + - 'DSD_U16_BE' > + - Correspond to SNDRV_PCM_FORMAT_DSD_U16_BE in ALSA > + * .. _V4L2-AUDIO-FMT-DSD-U32-BE: > + > + - ``V4L2_AUDIO_FMT_DSD-U32-BE`` > + - 'DSD_U32_BE' > + - Correspond to SNDRV_PCM_FORMAT_DSD_U32_BE in ALSA > diff --git a/Documentation/userspace-api/media/v4l/pixfmt.rst b/Documentation/userspace-api/media/v4l/pixfmt.rst > index 11dab4a90630..2eb6fdd3b43d 100644 > --- a/Documentation/userspace-api/media/v4l/pixfmt.rst > +++ b/Documentation/userspace-api/media/v4l/pixfmt.rst > @@ -36,3 +36,4 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.) > colorspaces > colorspaces-defs > colorspaces-details > + pixfmt-audio > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c > index 1a40090d8287..044611d5d3f8 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1471,6 +1471,57 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_PIX_FMT_Y210: descr = "10-bit YUYV Packed"; break; > case V4L2_PIX_FMT_Y212: descr = "12-bit YUYV Packed"; break; > case V4L2_PIX_FMT_Y216: descr = "16-bit YUYV Packed"; break; > + case V4L2_AUDIO_FMT_S8: descr = "8-bit Signed"; break; > + case V4L2_AUDIO_FMT_U8: descr = "8-bit Unsigned"; break; > + case V4L2_AUDIO_FMT_S16_LE: descr = "16-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S16_BE: descr = "16-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U16_LE: descr = "16-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U16_BE: descr = "16-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_S24_LE: descr = "24(32)-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S24_BE: descr = "24(32)-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U24_LE: descr = "24(32)-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U24_BE: descr = "24(32)-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_S32_LE: descr = "32-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S32_BE: descr = "32-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U32_LE: descr = "32-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U32_BE: descr = "32-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_FLOAT_LE: descr = "32-bit Float LE"; break; > + case V4L2_AUDIO_FMT_FLOAT_BE: descr = "32-bit Float BE"; break; > + case V4L2_AUDIO_FMT_FLOAT64_LE: descr = "64-bit Float LE"; break; > + case V4L2_AUDIO_FMT_FLOAT64_BE: descr = "64-bit Float BE"; break; > + case V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE: descr = "32-bit IEC958 LE"; break; > + case V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE: descr = "32-bit IEC958 BE"; break; > + case V4L2_AUDIO_FMT_MU_LAW: descr = "Mu Law"; break; > + case V4L2_AUDIO_FMT_A_LAW: descr = "A Law"; break; > + case V4L2_AUDIO_FMT_IMA_ADPCM: descr = "IMA ADPCM"; break; > + case V4L2_AUDIO_FMT_MPEG: descr = "MPEG Audio"; break; Compressed formats are handled in the default case, and those set theV4L2_FMT_FLAG_COMPRESSED flag. That's true for MPEG and perhaps also for some of the other audio formats? I'm no audio expert, so I don't know which are compressed or not. > + case V4L2_AUDIO_FMT_GSM: descr = "GSM Audio"; break; > + case V4L2_AUDIO_FMT_S20_LE: descr = "20-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S20_BE: descr = "20-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U20_LE: descr = "20-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U20_BE: descr = "20-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_SPECIAL: descr = "Special Audio"; break; > + case V4L2_AUDIO_FMT_S24_3LE: descr = "24(24)-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S24_3BE: descr = "24(24)-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U24_3LE: descr = "24(24)-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U24_3BE: descr = "24(24)-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_S20_3LE: descr = "20(24)-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S20_3BE: descr = "20(24)-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U20_3LE: descr = "20(24)-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U20_3BE: descr = "20(24)-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_S18_3LE: descr = "18(24)-bit Signed LE"; break; > + case V4L2_AUDIO_FMT_S18_3BE: descr = "18(24)-bit Signed BE"; break; > + case V4L2_AUDIO_FMT_U18_3LE: descr = "18(24)-bit Unsigned LE"; break; > + case V4L2_AUDIO_FMT_U18_3BE: descr = "18(24)-bit Unsigned BE"; break; > + case V4L2_AUDIO_FMT_G723_24: descr = "G723 24"; break; > + case V4L2_AUDIO_FMT_G723_24_1B: descr = "G723 24 1b"; break; > + case V4L2_AUDIO_FMT_G723_40: descr = "G723 40"; break; > + case V4L2_AUDIO_FMT_G723_40_1B: descr = "G723 40 1b"; break; > + case V4L2_AUDIO_FMT_DSD_U8: descr = "8-bit DSD"; break; > + case V4L2_AUDIO_FMT_DSD_U16_LE: descr = "16-bit DSD LE"; break; > + case V4L2_AUDIO_FMT_DSD_U32_LE: descr = "32-bit DSD LE"; break; > + case V4L2_AUDIO_FMT_DSD_U16_BE: descr = "16-bit DSD BE"; break; > + case V4L2_AUDIO_FMT_DSD_U32_BE: descr = "32-bit DSD BE"; break; > > default: > /* Compressed formats */ > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index 166c51f537cc..72d7d71050ee 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -842,6 +842,62 @@ struct v4l2_pix_format { > #define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */ > #define V4L2_META_FMT_RK_ISP1_STAT_3A v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */ > > +/* Audio-data formats */ I think that for now you should only include the formats that your hardware actually supports. But it is important to mention in the comment that all these audio formats use a fourcc starting with 'AU' followed by the SNDRV_PCM_FORMAT_ value from asound.h. > +#define V4L2_AUDIO_FMT_S8 v4l2_fourcc('A', 'U', '0', '0') > +#define V4L2_AUDIO_FMT_U8 v4l2_fourcc('A', 'U', '0', '1') > +#define V4L2_AUDIO_FMT_S16_LE v4l2_fourcc('A', 'U', '0', '2') > +#define V4L2_AUDIO_FMT_S16_BE v4l2_fourcc('A', 'U', '0', '3') > +#define V4L2_AUDIO_FMT_U16_LE v4l2_fourcc('A', 'U', '0', '4') > +#define V4L2_AUDIO_FMT_U16_BE v4l2_fourcc('A', 'U', '0', '5') > +#define V4L2_AUDIO_FMT_S24_LE v4l2_fourcc('A', 'U', '0', '6') > +#define V4L2_AUDIO_FMT_S24_BE v4l2_fourcc('A', 'U', '0', '7') > +#define V4L2_AUDIO_FMT_U24_LE v4l2_fourcc('A', 'U', '0', '8') > +#define V4L2_AUDIO_FMT_U24_BE v4l2_fourcc('A', 'U', '0', '9') > + > +#define V4L2_AUDIO_FMT_S32_LE v4l2_fourcc('A', 'U', '1', '0') > +#define V4L2_AUDIO_FMT_S32_BE v4l2_fourcc('A', 'U', '1', '1') > +#define V4L2_AUDIO_FMT_U32_LE v4l2_fourcc('A', 'U', '1', '2') > +#define V4L2_AUDIO_FMT_U32_BE v4l2_fourcc('A', 'U', '1', '3') > +#define V4L2_AUDIO_FMT_FLOAT_LE v4l2_fourcc('A', 'U', '1', '4') > +#define V4L2_AUDIO_FMT_FLOAT_BE v4l2_fourcc('A', 'U', '1', '5') > +#define V4L2_AUDIO_FMT_FLOAT64_LE v4l2_fourcc('A', 'U', '1', '6') > +#define V4L2_AUDIO_FMT_FLOAT64_BE v4l2_fourcc('A', 'U', '1', '7') > +#define V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE v4l2_fourcc('A', 'U', '1', '8') > +#define V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE v4l2_fourcc('A', 'U', '1', '9') > + > +#define V4L2_AUDIO_FMT_MU_LAW v4l2_fourcc('A', 'U', '2', '0') > +#define V4L2_AUDIO_FMT_A_LAW v4l2_fourcc('A', 'U', '2', '1') > +#define V4L2_AUDIO_FMT_IMA_ADPCM v4l2_fourcc('A', 'U', '2', '2') > +#define V4L2_AUDIO_FMT_MPEG v4l2_fourcc('A', 'U', '2', '3') > +#define V4L2_AUDIO_FMT_GSM v4l2_fourcc('A', 'U', '2', '4') > +#define V4L2_AUDIO_FMT_S20_LE v4l2_fourcc('A', 'U', '2', '5') > +#define V4L2_AUDIO_FMT_S20_BE v4l2_fourcc('A', 'U', '2', '6') > +#define V4L2_AUDIO_FMT_U20_LE v4l2_fourcc('A', 'U', '2', '7') > +#define V4L2_AUDIO_FMT_U20_BE v4l2_fourcc('A', 'U', '2', '8') > + > +#define V4L2_AUDIO_FMT_SPECIAL v4l2_fourcc('A', 'U', '3', '1') > +#define V4L2_AUDIO_FMT_S24_3LE v4l2_fourcc('A', 'U', '3', '2') > +#define V4L2_AUDIO_FMT_S24_3BE v4l2_fourcc('A', 'U', '3', '3') > +#define V4L2_AUDIO_FMT_U24_3LE v4l2_fourcc('A', 'U', '3', '4') > +#define V4L2_AUDIO_FMT_U24_3BE v4l2_fourcc('A', 'U', '3', '5') > +#define V4L2_AUDIO_FMT_S20_3LE v4l2_fourcc('A', 'U', '3', '6') > +#define V4L2_AUDIO_FMT_S20_3BE v4l2_fourcc('A', 'U', '3', '7') > +#define V4L2_AUDIO_FMT_U20_3LE v4l2_fourcc('A', 'U', '3', '8') > +#define V4L2_AUDIO_FMT_U20_3BE v4l2_fourcc('A', 'U', '3', '9') > +#define V4L2_AUDIO_FMT_S18_3LE v4l2_fourcc('A', 'U', '4', '0') > +#define V4L2_AUDIO_FMT_S18_3BE v4l2_fourcc('A', 'U', '4', '1') > +#define V4L2_AUDIO_FMT_U18_3LE v4l2_fourcc('A', 'U', '4', '2') > +#define V4L2_AUDIO_FMT_U18_3BE v4l2_fourcc('A', 'U', '4', '3') > +#define V4L2_AUDIO_FMT_G723_24 v4l2_fourcc('A', 'U', '4', '4') > +#define V4L2_AUDIO_FMT_G723_24_1B v4l2_fourcc('A', 'U', '4', '5') > +#define V4L2_AUDIO_FMT_G723_40 v4l2_fourcc('A', 'U', '4', '6') > +#define V4L2_AUDIO_FMT_G723_40_1B v4l2_fourcc('A', 'U', '4', '7') > +#define V4L2_AUDIO_FMT_DSD_U8 v4l2_fourcc('A', 'U', '4', '8') > +#define V4L2_AUDIO_FMT_DSD_U16_LE v4l2_fourcc('A', 'U', '4', '9') > +#define V4L2_AUDIO_FMT_DSD_U32_LE v4l2_fourcc('A', 'U', '5', '0') > +#define V4L2_AUDIO_FMT_DSD_U16_BE v4l2_fourcc('A', 'U', '5', '1') > +#define V4L2_AUDIO_FMT_DSD_U32_BE v4l2_fourcc('A', 'U', '5', '2') > + > /* priv field value to indicates that subsequent fields are valid. */ > #define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe > Regards, Hans
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-audio.rst b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst new file mode 100644 index 000000000000..6ff114dfc2d1 --- /dev/null +++ b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst @@ -0,0 +1,277 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later + +.. _pixfmt-audio: + +************* +Audio Formats +************* + +These formats are used for :ref:`audiomem2mem` interface only. + +.. tabularcolumns:: |p{5.8cm}|p{1.2cm}|p{10.3cm}| + +.. cssclass:: longtable + +.. flat-table:: Audio Format + :header-rows: 1 + :stub-columns: 0 + :widths: 3 1 4 + + * - Identifier + - Code + - Details + * .. _V4L2-AUDIO-FMT-S8: + + - ``V4L2_AUDIO_FMT_S8`` + - 'S8' + - Correspond to SNDRV_PCM_FORMAT_S8 in ALSA + * .. _V4L2-AUDIO-FMT-U8: + + - ``V4L2_AUDIO_FMT_U8`` + - 'U8' + - Correspond to SNDRV_PCM_FORMAT_U8 in ALSA + * .. _V4L2-AUDIO-FMT-S16-LE: + + - ``V4L2_AUDIO_FMT_S16_LE`` + - 'S16_LE' + - Correspond to SNDRV_PCM_FORMAT_S16_LE in ALSA + * .. _V4L2-AUDIO-FMT-S16-BE: + + - ``V4L2_AUDIO_FMT_S16_BE`` + - 'S16_BE' + - Correspond to SNDRV_PCM_FORMAT_S16_BE in ALSA + * .. _V4L2-AUDIO-FMT-U16-LE: + + - ``V4L2_AUDIO_FMT_U16_LE`` + - 'U16_LE' + - Correspond to SNDRV_PCM_FORMAT_U16_LE in ALSA + * .. _V4L2-AUDIO-FMT-U16-BE: + + - ``V4L2_AUDIO_FMT_U16_BE`` + - 'U16_BE' + - Correspond to SNDRV_PCM_FORMAT_U16_BE in ALSA + * .. _V4L2-AUDIO-FMT-S24-LE: + + - ``V4L2_AUDIO_FMT_S24_LE`` + - 'S24_LE' + - Correspond to SNDRV_PCM_FORMAT_S24_LE in ALSA + * .. _V4L2-AUDIO-FMT-S24-BE: + + - ``V4L2_AUDIO_FMT_S24_BE`` + - 'S24_BE' + - Correspond to SNDRV_PCM_FORMAT_S24_BE in ALSA + * .. _V4L2-AUDIO-FMT-U24-LE: + + - ``V4L2_AUDIO_FMT_U24_LE`` + - 'U24_LE' + - Correspond to SNDRV_PCM_FORMAT_U24_LE in ALSA + * .. _V4L2-AUDIO-FMT-U24-BE: + + - ``V4L2_AUDIO_FMT_U24_BE`` + - 'U24_BE' + - Correspond to SNDRV_PCM_FORMAT_U24_BE in ALSA + * .. _V4L2-AUDIO-FMT-S32-LE: + + - ``V4L2_AUDIO_FMT_S32_LE`` + - 'S32_LE' + - Correspond to SNDRV_PCM_FORMAT_S32_LE in ALSA + * .. _V4L2-AUDIO-FMT-S32-BE: + + - ``V4L2_AUDIO_FMT_S32_BE`` + - 'S32_BE' + - Correspond to SNDRV_PCM_FORMAT_S32_BE in ALSA + * .. _V4L2-AUDIO-FMT-U32-LE: + + - ``V4L2_AUDIO_FMT_U32_LE`` + - 'U32_LE' + - Correspond to SNDRV_PCM_FORMAT_U32_LE in ALSA + * .. _V4L2-AUDIO-FMT-U32-BE: + + - ``V4L2_AUDIO_FMT_U32_BE`` + - 'U32_BE' + - Correspond to SNDRV_PCM_FORMAT_U32_BE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT-LE: + + - ``V4L2_AUDIO_FMT_FLOAT_LE`` + - 'FLOAT_LE' + - Correspond to SNDRV_PCM_FORMAT_FLOAT_LE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT-BE: + + - ``V4L2_AUDIO_FMT_FLOAT_BE`` + - 'FLOAT_BE' + - Correspond to SNDRV_PCM_FORMAT_FLOAT_BE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT64-LE: + + - ``V4L2_AUDIO_FMT_FLOAT64_LE`` + - 'FLOAT64_LE' + - Correspond to SNDRV_PCM_FORMAT_FLOAT64_LE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT64-BE: + + - ``V4L2_AUDIO_FMT_FLOAT64_BE`` + - 'FLOAT64_BE' + - Correspond to SNDRV_PCM_FORMAT_FLOAT64_BE in ALSA + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-LE: + + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE`` + - 'IEC958_SUBFRAME_LE' + - Correspond to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE in ALSA + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-BE: + + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE`` + - 'IEC958_SUBFRAME_BE' + - Correspond to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE in ALSA + * .. _V4L2-AUDIO-FMT-MU-LAW: + + - ``V4L2_AUDIO_FMT_MU_LAW`` + - 'MU_LAW' + - Correspond to SNDRV_PCM_FORMAT_MU_LAW in ALSA + * .. _V4L2-AUDIO-FMT-A-LAW: + + - ``V4L2_AUDIO_FMT_A_LAW`` + - 'A_LAW' + - Correspond to SNDRV_PCM_FORMAT_A_LAW in ALSA + * .. _V4L2-AUDIO-FMT-IMA-ADPCM: + + - ``V4L2_AUDIO_FMT_IMA_ADPCM`` + - 'IMA_ADPCM' + - Correspond to SNDRV_PCM_FORMAT_IMA_ADPCM in ALSA + * .. _V4L2-AUDIO-FMT-MPEG: + + - ``V4L2_AUDIO_FMT_MPEG`` + - 'MPEG' + - Correspond to SNDRV_PCM_FORMAT_MPEG in ALSA + * .. _V4L2-AUDIO-FMT-GSM: + + - ``V4L2_AUDIO_FMT_GSM`` + - 'GSM' + - Correspond to SNDRV_PCM_FORMAT_GSM in ALSA + * .. _V4L2-AUDIO-FMT-S20-LE: + + - ``V4L2_AUDIO_FMT_S20_LE`` + - 'S20_LE' + - Correspond to SNDRV_PCM_FORMAT_S20_LE in ALSA + * .. _V4L2-AUDIO-FMT-S20-BE: + + - ``V4L2_AUDIO_FMT_S20_BE`` + - 'S20_BE' + - Correspond to SNDRV_PCM_FORMAT_S20_BE in ALSA + * .. _V4L2-AUDIO-FMT-U20-LE: + + - ``V4L2_AUDIO_FMT_U20_LE`` + - 'U20_LE' + - Correspond to SNDRV_PCM_FORMAT_U20_LE in ALSA + * .. _V4L2-AUDIO-FMT-U20-BE: + + - ``V4L2_AUDIO_FMT_U20_BE`` + - 'U20_BE' + - Correspond to SNDRV_PCM_FORMAT_U20_BE in ALSA + * .. _V4L2-AUDIO-FMT-SPECIAL: + + - ``V4L2_AUDIO_FMT_SPECIAL`` + - 'SPECIAL' + - Correspond to SNDRV_PCM_FORMAT_SPECIAL in ALSA + * .. _V4L2-AUDIO-FMT-S24-3LE: + + - ``V4L2_AUDIO_FMT_S24_3LE`` + - 'S24_3LE' + - Correspond to SNDRV_PCM_FORMAT_S24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S24-3BE: + + - ``V4L2_AUDIO_FMT_S24_3BE`` + - 'S24_3BE' + - Correspond to SNDRV_PCM_FORMAT_S24_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U24-3LE: + + - ``V4L2_AUDIO_FMT_U24_3LE`` + - 'U24_3LE' + - Correspond to SNDRV_PCM_FORMAT_U24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U24-3BE: + + - ``V4L2_AUDIO_FMT_U24_3BE`` + - 'U24_3BE' + - Correspond to SNDRV_PCM_FORMAT_U24_3BE in ALSA + * .. _V4L2-AUDIO-FMT-S20-3LE: + + - ``V4L2_AUDIO_FMT_S20_3LE`` + - 'S20_3LE' + - Correspond to SNDRV_PCM_FORMAT_S24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S20-3BE: + + - ``V4L2_AUDIO_FMT_S20_3BE`` + - 'S20_3BE' + - Correspond to SNDRV_PCM_FORMAT_S20_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U20-3LE: + + - ``V4L2_AUDIO_FMT_U20_3LE`` + - 'U20_3LE' + - Correspond to SNDRV_PCM_FORMAT_U20_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U20-3BE: + + - ``V4L2_AUDIO_FMT_U20_3BE`` + - 'U20_3BE' + - Correspond to SNDRV_PCM_FORMAT_U20_3BE in ALSA + * .. _V4L2-AUDIO-FMT-S18-3LE: + + - ``V4L2_AUDIO_FMT_S18_3LE`` + - 'S18_3LE' + - Correspond to SNDRV_PCM_FORMAT_S18_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S18-3BE: + + - ``V4L2_AUDIO_FMT_S18_3BE`` + - 'S18_3BE' + - Correspond to SNDRV_PCM_FORMAT_S18_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U18-3LE: + + - ``V4L2_AUDIO_FMT_U18_3LE`` + - 'U18_3LE' + - Correspond to SNDRV_PCM_FORMAT_U18_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U18-3BE: + + - ``V4L2_AUDIO_FMT_U18_3BE`` + - 'U18_3BE' + - Correspond to SNDRV_PCM_FORMAT_U18_3BE in ALSA + * .. _V4L2-AUDIO-FMT-G723-24: + + - ``V4L2_AUDIO_FMT_G723_24`` + - 'G723_24' + - Correspond to SNDRV_PCM_FORMAT_G723_24 in ALSA + * .. _V4L2-AUDIO-FMT-G723-24-1B: + + - ``V4L2_AUDIO_FMT_G723_24_1B`` + - 'G723_24_1B' + - Correspond to SNDRV_PCM_FORMAT_G723_24_1B in ALSA + * .. _V4L2-AUDIO-FMT-G723-40: + + - ``V4L2_AUDIO_FMT_G723_40`` + - 'G723_40' + - Correspond to SNDRV_PCM_FORMAT_G723_40 in ALSA + * .. _V4L2-AUDIO-FMT-G723-40-1B: + + - ``V4L2_AUDIO_FMT_G723_40_1B`` + - 'G723_40_1B' + - Correspond to SNDRV_PCM_FORMAT_G723_40_1B in ALSA + * .. _V4L2-AUDIO-FMT-DSD-U8: + + - ``V4L2_AUDIO_FMT_DSD-U8`` + - 'DSD_U8' + - Correspond to SNDRV_PCM_FORMAT_DSD_U8 in ALSA + * .. _V4L2-AUDIO-FMT-DSD-U16-LE: + + - ``V4L2_AUDIO_FMT_DSD-U16-LE`` + - 'DSD_U16_LE' + - Correspond to SNDRV_PCM_FORMAT_DSD_U16_LE in ALSA + * .. _V4L2-AUDIO-FMT-DSD-U32-LE: + + - ``V4L2_AUDIO_FMT_DSD-U32-LE`` + - 'DSD_U32_LE' + - Correspond to SNDRV_PCM_FORMAT_DSD_U32_LE in ALSA + * .. _V4L2-AUDIO-FMT-DSD-U16-BE: + + - ``V4L2_AUDIO_FMT_DSD-U16-BE`` + - 'DSD_U16_BE' + - Correspond to SNDRV_PCM_FORMAT_DSD_U16_BE in ALSA + * .. _V4L2-AUDIO-FMT-DSD-U32-BE: + + - ``V4L2_AUDIO_FMT_DSD-U32-BE`` + - 'DSD_U32_BE' + - Correspond to SNDRV_PCM_FORMAT_DSD_U32_BE in ALSA diff --git a/Documentation/userspace-api/media/v4l/pixfmt.rst b/Documentation/userspace-api/media/v4l/pixfmt.rst index 11dab4a90630..2eb6fdd3b43d 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt.rst @@ -36,3 +36,4 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.) colorspaces colorspaces-defs colorspaces-details + pixfmt-audio diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 1a40090d8287..044611d5d3f8 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1471,6 +1471,57 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_Y210: descr = "10-bit YUYV Packed"; break; case V4L2_PIX_FMT_Y212: descr = "12-bit YUYV Packed"; break; case V4L2_PIX_FMT_Y216: descr = "16-bit YUYV Packed"; break; + case V4L2_AUDIO_FMT_S8: descr = "8-bit Signed"; break; + case V4L2_AUDIO_FMT_U8: descr = "8-bit Unsigned"; break; + case V4L2_AUDIO_FMT_S16_LE: descr = "16-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S16_BE: descr = "16-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U16_LE: descr = "16-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U16_BE: descr = "16-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_S24_LE: descr = "24(32)-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S24_BE: descr = "24(32)-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U24_LE: descr = "24(32)-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U24_BE: descr = "24(32)-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_S32_LE: descr = "32-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S32_BE: descr = "32-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U32_LE: descr = "32-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U32_BE: descr = "32-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_FLOAT_LE: descr = "32-bit Float LE"; break; + case V4L2_AUDIO_FMT_FLOAT_BE: descr = "32-bit Float BE"; break; + case V4L2_AUDIO_FMT_FLOAT64_LE: descr = "64-bit Float LE"; break; + case V4L2_AUDIO_FMT_FLOAT64_BE: descr = "64-bit Float BE"; break; + case V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE: descr = "32-bit IEC958 LE"; break; + case V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE: descr = "32-bit IEC958 BE"; break; + case V4L2_AUDIO_FMT_MU_LAW: descr = "Mu Law"; break; + case V4L2_AUDIO_FMT_A_LAW: descr = "A Law"; break; + case V4L2_AUDIO_FMT_IMA_ADPCM: descr = "IMA ADPCM"; break; + case V4L2_AUDIO_FMT_MPEG: descr = "MPEG Audio"; break; + case V4L2_AUDIO_FMT_GSM: descr = "GSM Audio"; break; + case V4L2_AUDIO_FMT_S20_LE: descr = "20-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S20_BE: descr = "20-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U20_LE: descr = "20-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U20_BE: descr = "20-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_SPECIAL: descr = "Special Audio"; break; + case V4L2_AUDIO_FMT_S24_3LE: descr = "24(24)-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S24_3BE: descr = "24(24)-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U24_3LE: descr = "24(24)-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U24_3BE: descr = "24(24)-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_S20_3LE: descr = "20(24)-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S20_3BE: descr = "20(24)-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U20_3LE: descr = "20(24)-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U20_3BE: descr = "20(24)-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_S18_3LE: descr = "18(24)-bit Signed LE"; break; + case V4L2_AUDIO_FMT_S18_3BE: descr = "18(24)-bit Signed BE"; break; + case V4L2_AUDIO_FMT_U18_3LE: descr = "18(24)-bit Unsigned LE"; break; + case V4L2_AUDIO_FMT_U18_3BE: descr = "18(24)-bit Unsigned BE"; break; + case V4L2_AUDIO_FMT_G723_24: descr = "G723 24"; break; + case V4L2_AUDIO_FMT_G723_24_1B: descr = "G723 24 1b"; break; + case V4L2_AUDIO_FMT_G723_40: descr = "G723 40"; break; + case V4L2_AUDIO_FMT_G723_40_1B: descr = "G723 40 1b"; break; + case V4L2_AUDIO_FMT_DSD_U8: descr = "8-bit DSD"; break; + case V4L2_AUDIO_FMT_DSD_U16_LE: descr = "16-bit DSD LE"; break; + case V4L2_AUDIO_FMT_DSD_U32_LE: descr = "32-bit DSD LE"; break; + case V4L2_AUDIO_FMT_DSD_U16_BE: descr = "16-bit DSD BE"; break; + case V4L2_AUDIO_FMT_DSD_U32_BE: descr = "32-bit DSD BE"; break; default: /* Compressed formats */ diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 166c51f537cc..72d7d71050ee 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -842,6 +842,62 @@ struct v4l2_pix_format { #define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */ #define V4L2_META_FMT_RK_ISP1_STAT_3A v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */ +/* Audio-data formats */ +#define V4L2_AUDIO_FMT_S8 v4l2_fourcc('A', 'U', '0', '0') +#define V4L2_AUDIO_FMT_U8 v4l2_fourcc('A', 'U', '0', '1') +#define V4L2_AUDIO_FMT_S16_LE v4l2_fourcc('A', 'U', '0', '2') +#define V4L2_AUDIO_FMT_S16_BE v4l2_fourcc('A', 'U', '0', '3') +#define V4L2_AUDIO_FMT_U16_LE v4l2_fourcc('A', 'U', '0', '4') +#define V4L2_AUDIO_FMT_U16_BE v4l2_fourcc('A', 'U', '0', '5') +#define V4L2_AUDIO_FMT_S24_LE v4l2_fourcc('A', 'U', '0', '6') +#define V4L2_AUDIO_FMT_S24_BE v4l2_fourcc('A', 'U', '0', '7') +#define V4L2_AUDIO_FMT_U24_LE v4l2_fourcc('A', 'U', '0', '8') +#define V4L2_AUDIO_FMT_U24_BE v4l2_fourcc('A', 'U', '0', '9') + +#define V4L2_AUDIO_FMT_S32_LE v4l2_fourcc('A', 'U', '1', '0') +#define V4L2_AUDIO_FMT_S32_BE v4l2_fourcc('A', 'U', '1', '1') +#define V4L2_AUDIO_FMT_U32_LE v4l2_fourcc('A', 'U', '1', '2') +#define V4L2_AUDIO_FMT_U32_BE v4l2_fourcc('A', 'U', '1', '3') +#define V4L2_AUDIO_FMT_FLOAT_LE v4l2_fourcc('A', 'U', '1', '4') +#define V4L2_AUDIO_FMT_FLOAT_BE v4l2_fourcc('A', 'U', '1', '5') +#define V4L2_AUDIO_FMT_FLOAT64_LE v4l2_fourcc('A', 'U', '1', '6') +#define V4L2_AUDIO_FMT_FLOAT64_BE v4l2_fourcc('A', 'U', '1', '7') +#define V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE v4l2_fourcc('A', 'U', '1', '8') +#define V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE v4l2_fourcc('A', 'U', '1', '9') + +#define V4L2_AUDIO_FMT_MU_LAW v4l2_fourcc('A', 'U', '2', '0') +#define V4L2_AUDIO_FMT_A_LAW v4l2_fourcc('A', 'U', '2', '1') +#define V4L2_AUDIO_FMT_IMA_ADPCM v4l2_fourcc('A', 'U', '2', '2') +#define V4L2_AUDIO_FMT_MPEG v4l2_fourcc('A', 'U', '2', '3') +#define V4L2_AUDIO_FMT_GSM v4l2_fourcc('A', 'U', '2', '4') +#define V4L2_AUDIO_FMT_S20_LE v4l2_fourcc('A', 'U', '2', '5') +#define V4L2_AUDIO_FMT_S20_BE v4l2_fourcc('A', 'U', '2', '6') +#define V4L2_AUDIO_FMT_U20_LE v4l2_fourcc('A', 'U', '2', '7') +#define V4L2_AUDIO_FMT_U20_BE v4l2_fourcc('A', 'U', '2', '8') + +#define V4L2_AUDIO_FMT_SPECIAL v4l2_fourcc('A', 'U', '3', '1') +#define V4L2_AUDIO_FMT_S24_3LE v4l2_fourcc('A', 'U', '3', '2') +#define V4L2_AUDIO_FMT_S24_3BE v4l2_fourcc('A', 'U', '3', '3') +#define V4L2_AUDIO_FMT_U24_3LE v4l2_fourcc('A', 'U', '3', '4') +#define V4L2_AUDIO_FMT_U24_3BE v4l2_fourcc('A', 'U', '3', '5') +#define V4L2_AUDIO_FMT_S20_3LE v4l2_fourcc('A', 'U', '3', '6') +#define V4L2_AUDIO_FMT_S20_3BE v4l2_fourcc('A', 'U', '3', '7') +#define V4L2_AUDIO_FMT_U20_3LE v4l2_fourcc('A', 'U', '3', '8') +#define V4L2_AUDIO_FMT_U20_3BE v4l2_fourcc('A', 'U', '3', '9') +#define V4L2_AUDIO_FMT_S18_3LE v4l2_fourcc('A', 'U', '4', '0') +#define V4L2_AUDIO_FMT_S18_3BE v4l2_fourcc('A', 'U', '4', '1') +#define V4L2_AUDIO_FMT_U18_3LE v4l2_fourcc('A', 'U', '4', '2') +#define V4L2_AUDIO_FMT_U18_3BE v4l2_fourcc('A', 'U', '4', '3') +#define V4L2_AUDIO_FMT_G723_24 v4l2_fourcc('A', 'U', '4', '4') +#define V4L2_AUDIO_FMT_G723_24_1B v4l2_fourcc('A', 'U', '4', '5') +#define V4L2_AUDIO_FMT_G723_40 v4l2_fourcc('A', 'U', '4', '6') +#define V4L2_AUDIO_FMT_G723_40_1B v4l2_fourcc('A', 'U', '4', '7') +#define V4L2_AUDIO_FMT_DSD_U8 v4l2_fourcc('A', 'U', '4', '8') +#define V4L2_AUDIO_FMT_DSD_U16_LE v4l2_fourcc('A', 'U', '4', '9') +#define V4L2_AUDIO_FMT_DSD_U32_LE v4l2_fourcc('A', 'U', '5', '0') +#define V4L2_AUDIO_FMT_DSD_U16_BE v4l2_fourcc('A', 'U', '5', '1') +#define V4L2_AUDIO_FMT_DSD_U32_BE v4l2_fourcc('A', 'U', '5', '2') + /* priv field value to indicates that subsequent fields are valid. */ #define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
The audio sample format definition is from alsa, the header file is include/uapi/sound/asound.h, but don't include this header file directly, because in user space, there is another copy in alsa-lib. There will be conflict in userspace for include videodev2.h & asound.h and asoundlib.h Here still use the fourcc format. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> --- .../userspace-api/media/v4l/pixfmt-audio.rst | 277 ++++++++++++++++++ .../userspace-api/media/v4l/pixfmt.rst | 1 + drivers/media/v4l2-core/v4l2-ioctl.c | 51 ++++ include/uapi/linux/videodev2.h | 56 ++++ 4 files changed, 385 insertions(+) create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-audio.rst