| Message ID | 1697185865-27528-9-git-send-email-shengjiu.wang@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add audio support in v4l2 framework | expand |
On 13/10/2023 10:31, 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 | 202 ++++++++++++++++++ > .../userspace-api/media/v4l/pixfmt.rst | 1 + > drivers/media/v4l2-core/v4l2-ioctl.c | 36 ++++ > include/uapi/linux/videodev2.h | 48 +++++ > 4 files changed, 287 insertions(+) > create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-audio.rst > > 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..ac89b2c4b594 > --- /dev/null > +++ b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst > @@ -0,0 +1,202 @@ > +.. 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' > + - Corresponds to SNDRV_PCM_FORMAT_S8 in ALSA > + * .. _V4L2-AUDIO-FMT-U8: > + > + - ``V4L2_AUDIO_FMT_U8`` > + - 'U8' > + - Corresponds to SNDRV_PCM_FORMAT_U8 in ALSA > + * .. _V4L2-AUDIO-FMT-S16-LE: > + > + - ``V4L2_AUDIO_FMT_S16_LE`` > + - 'S16_LE' > + - Corresponds to SNDRV_PCM_FORMAT_S16_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S16-BE: > + > + - ``V4L2_AUDIO_FMT_S16_BE`` > + - 'S16_BE' > + - Corresponds to SNDRV_PCM_FORMAT_S16_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U16-LE: > + > + - ``V4L2_AUDIO_FMT_U16_LE`` > + - 'U16_LE' > + - Corresponds to SNDRV_PCM_FORMAT_U16_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U16-BE: > + > + - ``V4L2_AUDIO_FMT_U16_BE`` > + - 'U16_BE' > + - Corresponds to SNDRV_PCM_FORMAT_U16_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-LE: > + > + - ``V4L2_AUDIO_FMT_S24_LE`` > + - 'S24_LE' > + - Corresponds to SNDRV_PCM_FORMAT_S24_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-BE: > + > + - ``V4L2_AUDIO_FMT_S24_BE`` > + - 'S24_BE' > + - Corresponds to SNDRV_PCM_FORMAT_S24_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-LE: > + > + - ``V4L2_AUDIO_FMT_U24_LE`` > + - 'U24_LE' > + - Corresponds to SNDRV_PCM_FORMAT_U24_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-BE: > + > + - ``V4L2_AUDIO_FMT_U24_BE`` > + - 'U24_BE' > + - Corresponds to SNDRV_PCM_FORMAT_U24_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S32-LE: > + > + - ``V4L2_AUDIO_FMT_S32_LE`` > + - 'S32_LE' > + - Corresponds to SNDRV_PCM_FORMAT_S32_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S32-BE: > + > + - ``V4L2_AUDIO_FMT_S32_BE`` > + - 'S32_BE' > + - Corresponds to SNDRV_PCM_FORMAT_S32_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U32-LE: > + > + - ``V4L2_AUDIO_FMT_U32_LE`` > + - 'U32_LE' > + - Corresponds to SNDRV_PCM_FORMAT_U32_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U32-BE: > + > + - ``V4L2_AUDIO_FMT_U32_BE`` > + - 'U32_BE' > + - Corresponds to SNDRV_PCM_FORMAT_U32_BE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT-LE: > + > + - ``V4L2_AUDIO_FMT_FLOAT_LE`` > + - 'FLOAT_LE' > + - Corresponds to SNDRV_PCM_FORMAT_FLOAT_LE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT-BE: > + > + - ``V4L2_AUDIO_FMT_FLOAT_BE`` > + - 'FLOAT_BE' > + - Corresponds to SNDRV_PCM_FORMAT_FLOAT_BE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT64-LE: > + > + - ``V4L2_AUDIO_FMT_FLOAT64_LE`` > + - 'FLOAT64_LE' > + - Corresponds to SNDRV_PCM_FORMAT_FLOAT64_LE in ALSA > + * .. _V4L2-AUDIO-FMT-FLOAT64-BE: > + > + - ``V4L2_AUDIO_FMT_FLOAT64_BE`` > + - 'FLOAT64_BE' > + - Corresponds to SNDRV_PCM_FORMAT_FLOAT64_BE in ALSA > + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-LE: > + > + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE`` > + - 'IEC958_SUBFRAME_LE' > + - Corresponds to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE in ALSA > + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-BE: > + > + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE`` > + - 'IEC958_SUBFRAME_BE' > + - Corresponds to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-LE: > + > + - ``V4L2_AUDIO_FMT_S20_LE`` > + - 'S20_LE' > + - Corresponds to SNDRV_PCM_FORMAT_S20_LE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-BE: > + > + - ``V4L2_AUDIO_FMT_S20_BE`` > + - 'S20_BE' > + - Corresponds to SNDRV_PCM_FORMAT_S20_BE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-LE: > + > + - ``V4L2_AUDIO_FMT_U20_LE`` > + - 'U20_LE' > + - Corresponds to SNDRV_PCM_FORMAT_U20_LE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-BE: > + > + - ``V4L2_AUDIO_FMT_U20_BE`` > + - 'U20_BE' > + - Corresponds to SNDRV_PCM_FORMAT_U20_BE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-3LE: > + > + - ``V4L2_AUDIO_FMT_S24_3LE`` > + - 'S24_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_S24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S24-3BE: > + > + - ``V4L2_AUDIO_FMT_S24_3BE`` > + - 'S24_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_S24_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-3LE: > + > + - ``V4L2_AUDIO_FMT_U24_3LE`` > + - 'U24_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_U24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U24-3BE: > + > + - ``V4L2_AUDIO_FMT_U24_3BE`` > + - 'U24_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_U24_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-3LE: > + > + - ``V4L2_AUDIO_FMT_S20_3LE`` > + - 'S20_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_S24_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S20-3BE: > + > + - ``V4L2_AUDIO_FMT_S20_3BE`` > + - 'S20_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_S20_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-3LE: > + > + - ``V4L2_AUDIO_FMT_U20_3LE`` > + - 'U20_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_U20_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U20-3BE: > + > + - ``V4L2_AUDIO_FMT_U20_3BE`` > + - 'U20_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_U20_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-S18-3LE: > + > + - ``V4L2_AUDIO_FMT_S18_3LE`` > + - 'S18_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_S18_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-S18-3BE: > + > + - ``V4L2_AUDIO_FMT_S18_3BE`` > + - 'S18_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_S18_3BE in ALSA > + * .. _V4L2-AUDIO-FMT-U18-3LE: > + > + - ``V4L2_AUDIO_FMT_U18_3LE`` > + - 'U18_3LE' > + - Corresponds to SNDRV_PCM_FORMAT_U18_3LE in ALSA > + * .. _V4L2-AUDIO-FMT-U18-3BE: > + > + - ``V4L2_AUDIO_FMT_U18_3BE`` > + - 'U18_3BE' > + - Corresponds to SNDRV_PCM_FORMAT_U18_3BE 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 5d088e6c43e4..31e443c644db 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1471,6 +1471,42 @@ 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_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_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; This still has several formats that are not used by the initial drivers imx-asrc and viaudm2m. Please just add the ones that are actually used. We had bad experiences in the past with defined-but-never-used formats, so we are fairly strict about that these days. > > default: > /* Compressed formats */ > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index b0ddb7319d36..2ac7b989394c 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -842,6 +842,54 @@ 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 > + * 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_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_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_fourcc_to_audfmt(X) \ > + (((((X) >> 16) & 0xFF) - '0') * 10 + ((((X) >> 24) & 0xFF) - '0')) X -> fourcc 0xFF -> 0xff > + > /* 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..ac89b2c4b594 --- /dev/null +++ b/Documentation/userspace-api/media/v4l/pixfmt-audio.rst @@ -0,0 +1,202 @@ +.. 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' + - Corresponds to SNDRV_PCM_FORMAT_S8 in ALSA + * .. _V4L2-AUDIO-FMT-U8: + + - ``V4L2_AUDIO_FMT_U8`` + - 'U8' + - Corresponds to SNDRV_PCM_FORMAT_U8 in ALSA + * .. _V4L2-AUDIO-FMT-S16-LE: + + - ``V4L2_AUDIO_FMT_S16_LE`` + - 'S16_LE' + - Corresponds to SNDRV_PCM_FORMAT_S16_LE in ALSA + * .. _V4L2-AUDIO-FMT-S16-BE: + + - ``V4L2_AUDIO_FMT_S16_BE`` + - 'S16_BE' + - Corresponds to SNDRV_PCM_FORMAT_S16_BE in ALSA + * .. _V4L2-AUDIO-FMT-U16-LE: + + - ``V4L2_AUDIO_FMT_U16_LE`` + - 'U16_LE' + - Corresponds to SNDRV_PCM_FORMAT_U16_LE in ALSA + * .. _V4L2-AUDIO-FMT-U16-BE: + + - ``V4L2_AUDIO_FMT_U16_BE`` + - 'U16_BE' + - Corresponds to SNDRV_PCM_FORMAT_U16_BE in ALSA + * .. _V4L2-AUDIO-FMT-S24-LE: + + - ``V4L2_AUDIO_FMT_S24_LE`` + - 'S24_LE' + - Corresponds to SNDRV_PCM_FORMAT_S24_LE in ALSA + * .. _V4L2-AUDIO-FMT-S24-BE: + + - ``V4L2_AUDIO_FMT_S24_BE`` + - 'S24_BE' + - Corresponds to SNDRV_PCM_FORMAT_S24_BE in ALSA + * .. _V4L2-AUDIO-FMT-U24-LE: + + - ``V4L2_AUDIO_FMT_U24_LE`` + - 'U24_LE' + - Corresponds to SNDRV_PCM_FORMAT_U24_LE in ALSA + * .. _V4L2-AUDIO-FMT-U24-BE: + + - ``V4L2_AUDIO_FMT_U24_BE`` + - 'U24_BE' + - Corresponds to SNDRV_PCM_FORMAT_U24_BE in ALSA + * .. _V4L2-AUDIO-FMT-S32-LE: + + - ``V4L2_AUDIO_FMT_S32_LE`` + - 'S32_LE' + - Corresponds to SNDRV_PCM_FORMAT_S32_LE in ALSA + * .. _V4L2-AUDIO-FMT-S32-BE: + + - ``V4L2_AUDIO_FMT_S32_BE`` + - 'S32_BE' + - Corresponds to SNDRV_PCM_FORMAT_S32_BE in ALSA + * .. _V4L2-AUDIO-FMT-U32-LE: + + - ``V4L2_AUDIO_FMT_U32_LE`` + - 'U32_LE' + - Corresponds to SNDRV_PCM_FORMAT_U32_LE in ALSA + * .. _V4L2-AUDIO-FMT-U32-BE: + + - ``V4L2_AUDIO_FMT_U32_BE`` + - 'U32_BE' + - Corresponds to SNDRV_PCM_FORMAT_U32_BE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT-LE: + + - ``V4L2_AUDIO_FMT_FLOAT_LE`` + - 'FLOAT_LE' + - Corresponds to SNDRV_PCM_FORMAT_FLOAT_LE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT-BE: + + - ``V4L2_AUDIO_FMT_FLOAT_BE`` + - 'FLOAT_BE' + - Corresponds to SNDRV_PCM_FORMAT_FLOAT_BE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT64-LE: + + - ``V4L2_AUDIO_FMT_FLOAT64_LE`` + - 'FLOAT64_LE' + - Corresponds to SNDRV_PCM_FORMAT_FLOAT64_LE in ALSA + * .. _V4L2-AUDIO-FMT-FLOAT64-BE: + + - ``V4L2_AUDIO_FMT_FLOAT64_BE`` + - 'FLOAT64_BE' + - Corresponds to SNDRV_PCM_FORMAT_FLOAT64_BE in ALSA + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-LE: + + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_LE`` + - 'IEC958_SUBFRAME_LE' + - Corresponds to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE in ALSA + * .. _V4L2-AUDIO-FMT-IEC958-SUBFRAME-BE: + + - ``V4L2_AUDIO_FMT_IEC958_SUBFRAME_BE`` + - 'IEC958_SUBFRAME_BE' + - Corresponds to SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE in ALSA + * .. _V4L2-AUDIO-FMT-S20-LE: + + - ``V4L2_AUDIO_FMT_S20_LE`` + - 'S20_LE' + - Corresponds to SNDRV_PCM_FORMAT_S20_LE in ALSA + * .. _V4L2-AUDIO-FMT-S20-BE: + + - ``V4L2_AUDIO_FMT_S20_BE`` + - 'S20_BE' + - Corresponds to SNDRV_PCM_FORMAT_S20_BE in ALSA + * .. _V4L2-AUDIO-FMT-U20-LE: + + - ``V4L2_AUDIO_FMT_U20_LE`` + - 'U20_LE' + - Corresponds to SNDRV_PCM_FORMAT_U20_LE in ALSA + * .. _V4L2-AUDIO-FMT-U20-BE: + + - ``V4L2_AUDIO_FMT_U20_BE`` + - 'U20_BE' + - Corresponds to SNDRV_PCM_FORMAT_U20_BE in ALSA + * .. _V4L2-AUDIO-FMT-S24-3LE: + + - ``V4L2_AUDIO_FMT_S24_3LE`` + - 'S24_3LE' + - Corresponds to SNDRV_PCM_FORMAT_S24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S24-3BE: + + - ``V4L2_AUDIO_FMT_S24_3BE`` + - 'S24_3BE' + - Corresponds to SNDRV_PCM_FORMAT_S24_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U24-3LE: + + - ``V4L2_AUDIO_FMT_U24_3LE`` + - 'U24_3LE' + - Corresponds to SNDRV_PCM_FORMAT_U24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U24-3BE: + + - ``V4L2_AUDIO_FMT_U24_3BE`` + - 'U24_3BE' + - Corresponds to SNDRV_PCM_FORMAT_U24_3BE in ALSA + * .. _V4L2-AUDIO-FMT-S20-3LE: + + - ``V4L2_AUDIO_FMT_S20_3LE`` + - 'S20_3LE' + - Corresponds to SNDRV_PCM_FORMAT_S24_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S20-3BE: + + - ``V4L2_AUDIO_FMT_S20_3BE`` + - 'S20_3BE' + - Corresponds to SNDRV_PCM_FORMAT_S20_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U20-3LE: + + - ``V4L2_AUDIO_FMT_U20_3LE`` + - 'U20_3LE' + - Corresponds to SNDRV_PCM_FORMAT_U20_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U20-3BE: + + - ``V4L2_AUDIO_FMT_U20_3BE`` + - 'U20_3BE' + - Corresponds to SNDRV_PCM_FORMAT_U20_3BE in ALSA + * .. _V4L2-AUDIO-FMT-S18-3LE: + + - ``V4L2_AUDIO_FMT_S18_3LE`` + - 'S18_3LE' + - Corresponds to SNDRV_PCM_FORMAT_S18_3LE in ALSA + * .. _V4L2-AUDIO-FMT-S18-3BE: + + - ``V4L2_AUDIO_FMT_S18_3BE`` + - 'S18_3BE' + - Corresponds to SNDRV_PCM_FORMAT_S18_3BE in ALSA + * .. _V4L2-AUDIO-FMT-U18-3LE: + + - ``V4L2_AUDIO_FMT_U18_3LE`` + - 'U18_3LE' + - Corresponds to SNDRV_PCM_FORMAT_U18_3LE in ALSA + * .. _V4L2-AUDIO-FMT-U18-3BE: + + - ``V4L2_AUDIO_FMT_U18_3BE`` + - 'U18_3BE' + - Corresponds to SNDRV_PCM_FORMAT_U18_3BE 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 5d088e6c43e4..31e443c644db 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1471,6 +1471,42 @@ 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_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_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; default: /* Compressed formats */ diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index b0ddb7319d36..2ac7b989394c 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -842,6 +842,54 @@ 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 + * 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_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_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_fourcc_to_audfmt(X) \ + (((((X) >> 16) & 0xFF) - '0') * 10 + ((((X) >> 24) & 0xFF) - '0')) + /* 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 | 202 ++++++++++++++++++ .../userspace-api/media/v4l/pixfmt.rst | 1 + drivers/media/v4l2-core/v4l2-ioctl.c | 36 ++++ include/uapi/linux/videodev2.h | 48 +++++ 4 files changed, 287 insertions(+) create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-audio.rst