On 01/20/2019 12:15 PM, Dafna Hirschfeld wrote:
> Add function get_codec_type that returns the type
> of codec NOT_CODEC/ENCODER/DEOCDER.
> Move the functions get_cap_compose/crop_rect
> to the start of the file.
>
> Signed-off-by: Dafna Hirschfeld <daf...@gmail.com>
> ---
> utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 126 ++++++++++++++++++--------
> 1 file changed, 88 insertions(+), 38 deletions(-)
>
> diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> index 8a98b6bd..3e81fdfc 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
> @@ -82,6 +82,12 @@ static bool support_out_crop;
> #define TS_WINDOW 241
> #define FILE_HDR_ID v4l2_fourcc('V', 'h', 'd', 'r')
>
> +enum codec_type {
> + NOT_CODEC,
> + ENCODER,
> + DECODER
> +};
> +
> class fps_timestamps {
> private:
> unsigned idx;
> @@ -334,6 +340,88 @@ void streaming_usage(void)
> V4L_STREAM_PORT);
> }
>
> +static int get_codec_type(cv4l_fd &fd, enum codec_type &codec_type)
Just have this function return enum codec_type, no need for it to return -1.
If it encounters any errors then it is not a codec.
Regards,
Hans
> +{
> + struct v4l2_fmtdesc fmt_desc;
> + int num_cap_fmts = 0;
> + int num_compressed_cap_fmts = 0;
> + int num_out_fmts = 0;
> + int num_compressed_out_fmts = 0;
> +
> + codec_type = NOT_CODEC;
> + if (!fd.has_vid_m2m())
> + return 0;
> +
> + if (fd.enum_fmt(fmt_desc, true, 0, V4L2_BUF_TYPE_VIDEO_CAPTURE))
> + return -1;
> +
> + do {
> + if (fmt_desc.flags & V4L2_FMT_FLAG_COMPRESSED)
> + num_compressed_cap_fmts++;
> + num_cap_fmts++;
> + } while (!fd.enum_fmt(fmt_desc));
> +
> +
> + if (fd.enum_fmt(fmt_desc, true, 0, V4L2_BUF_TYPE_VIDEO_OUTPUT))
> + return -1;
> +
> + do {
> + if (fmt_desc.flags & V4L2_FMT_FLAG_COMPRESSED)
> + num_compressed_out_fmts++;
> + num_out_fmts++;
> + } while (!fd.enum_fmt(fmt_desc));
> +
> + if (num_compressed_out_fmts == 0 && num_compressed_cap_fmts ==
> num_cap_fmts) {
> + codec_type = ENCODER;
> + return 0;
> + }
> +
> + if (num_compressed_cap_fmts == 0 && num_compressed_out_fmts ==
> num_out_fmts) {
> + codec_type = DECODER;
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +static int get_cap_compose_rect(cv4l_fd &fd)
> +{
> + v4l2_selection sel;
> +
> + memset(&sel, 0, sizeof(sel));
> + sel.type = vidcap_buftype;
> + sel.target = V4L2_SEL_TGT_COMPOSE;
> +
> + if (fd.g_selection(sel) == 0) {
> + support_cap_compose = true;
> + composed_width = sel.r.width;
> + composed_height = sel.r.height;
> + return 0;
> + }
> +
> + support_cap_compose = false;
> + return 0;
> +}
> +
> +static int get_out_crop_rect(cv4l_fd &fd)
> +{
> + v4l2_selection sel;
> +
> + memset(&sel, 0, sizeof(sel));
> + sel.type = vidout_buftype;
> + sel.target = V4L2_SEL_TGT_CROP;
> +
> + if (fd.g_selection(sel) == 0) {
> + support_out_crop = true;
> + cropped_width = sel.r.width;
> + cropped_height = sel.r.height;
> + return 0;
> + }
> +
> + support_out_crop = false;
> + return 0;
> +}
> +
> static void set_time_stamp(cv4l_buffer &buf)
> {
> if ((buf.g_flags() & V4L2_BUF_FLAG_TIMESTAMP_MASK) !=
> V4L2_BUF_FLAG_TIMESTAMP_COPY)
> @@ -2109,44 +2197,6 @@ done:
> fclose(file[OUT]);
> }
>
> -static int get_cap_compose_rect(cv4l_fd &fd)
> -{
> - v4l2_selection sel;
> -
> - memset(&sel, 0, sizeof(sel));
> - sel.type = vidcap_buftype;
> - sel.target = V4L2_SEL_TGT_COMPOSE;
> -
> - if (fd.g_selection(sel) == 0) {
> - support_cap_compose = true;
> - composed_width = sel.r.width;
> - composed_height = sel.r.height;
> - return 0;
> - }
> -
> - support_cap_compose = false;
> - return 0;
> -}
> -
> -static int get_out_crop_rect(cv4l_fd &fd)
> -{
> - v4l2_selection sel;
> -
> - memset(&sel, 0, sizeof(sel));
> - sel.type = vidout_buftype;
> - sel.target = V4L2_SEL_TGT_CROP;
> -
> - if (fd.g_selection(sel) == 0) {
> - support_out_crop = true;
> - cropped_width = sel.r.width;
> - cropped_height = sel.r.height;
> - return 0;
> - }
> -
> - support_out_crop = false;
> - return 0;
> -}
> -
> void streaming_set(cv4l_fd &fd, cv4l_fd &out_fd)
> {
> cv4l_disable_trace dt(fd);
>
