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Tue, 3 May 2022 14:39:08 +0000 From: Xavier Roumegue To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl Cc: Xavier Roumegue , linux-media@vger.kernel.org Subject: [PATCH v2 2/2] v4l2-utils: read/write full frame from/to file for m2m non codec driver Date: Tue, 3 May 2022 16:38:12 +0200 Message-Id: <20220503143812.982985-2-xavier.roumegue@oss.nxp.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220503143812.982985-1-xavier.roumegue@oss.nxp.com> References: <20220503143812.982985-1-xavier.roumegue@oss.nxp.com> X-ClientProxiedBy: PR0P264CA0196.FRAP264.PROD.OUTLOOK.COM (2603:10a6:100:1f::16) To AM9PR04MB8700.eurprd04.prod.outlook.com (2603:10a6:20b:43f::8) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 545859f6-9a88-45ae-9a88-08da2d12ae11 X-MS-TrafficTypeDiagnostic: VI1PR04MB3133:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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+static enum codec_type codec_type; + #define QUEUE_ERROR -1 #define QUEUE_STOPPED -2 @@ -352,7 +354,7 @@ void streaming_usage() V4L_STREAM_PORT); } -static enum codec_type get_codec_type(cv4l_fd &fd) +static void get_codec_type(cv4l_fd &fd) { cv4l_disable_trace dt(fd); struct v4l2_fmtdesc fmt_desc = {}; @@ -361,11 +363,13 @@ static enum codec_type get_codec_type(cv4l_fd &fd) int num_out_fmts = 0; int num_compressed_out_fmts = 0; + codec_type = NOT_CODEC; + if (!fd.has_vid_m2m()) - return NOT_CODEC; + return; if (fd.enum_fmt(fmt_desc, true, 0, fd.g_type())) - return NOT_CODEC; + return; do { if (fmt_desc.flags & V4L2_FMT_FLAG_COMPRESSED) @@ -375,7 +379,7 @@ static enum codec_type get_codec_type(cv4l_fd &fd) if (fd.enum_fmt(fmt_desc, true, 0, v4l_type_invert(fd.g_type()))) - return NOT_CODEC; + return; do { if (fmt_desc.flags & V4L2_FMT_FLAG_COMPRESSED) @@ -384,14 +388,14 @@ static enum codec_type get_codec_type(cv4l_fd &fd) } while (!fd.enum_fmt(fmt_desc)); if (num_compressed_out_fmts == 0 && num_compressed_cap_fmts == num_cap_fmts) { - return ENCODER; + codec_type = ENCODER; + return; } if (num_compressed_cap_fmts == 0 && num_compressed_out_fmts == num_out_fmts) { - return DECODER; + codec_type = DECODER; + return; } - - return NOT_CODEC; } static void get_cap_compose_rect(cv4l_fd &fd) @@ -1105,7 +1109,8 @@ restart: if (fmt.g_pixelformat() == V4L2_PIX_FMT_FWHT_STATELESS) res = read_fwht_frame(fmt, static_cast(buf), fin, sz, expected_len, buf_len); - else if (support_out_crop && v4l2_fwht_find_pixfmt(fmt.g_pixelformat())) + else if (codec_type != NOT_CODEC && + support_out_crop && v4l2_fwht_find_pixfmt(fmt.g_pixelformat())) res = read_write_padded_frame(fmt, static_cast(buf), fin, sz, expected_len, buf_len, true); else @@ -1365,7 +1370,8 @@ static void write_buffer_to_file(cv4l_fd &fd, cv4l_queue &q, cv4l_buffer &buf, } if (host_fd_to >= 0) sz = fwrite(comp_ptr[j] + offset, 1, used, fout); - else if (support_cap_compose && v4l2_fwht_find_pixfmt(fmt.g_pixelformat())) + else if (codec_type != NOT_CODEC && + support_cap_compose && v4l2_fwht_find_pixfmt(fmt.g_pixelformat())) read_write_padded_frame(fmt, static_cast(q.g_dataptr(buf.g_index(), j)) + offset, fout, sz, used, used, false); else @@ -2258,7 +2264,6 @@ static void stateful_m2m(cv4l_fd &fd, cv4l_queue &in, cv4l_queue &out, bool have_eos = subscribe_event(fd, V4L2_EVENT_EOS); bool is_encoder = false; - enum codec_type codec_type = get_codec_type(fd); bool ignore_count_skip = codec_type == ENCODER; if (have_eos) { @@ -2864,6 +2869,7 @@ void streaming_set(cv4l_fd &fd, cv4l_fd &out_fd, cv4l_fd &exp_fd) get_cap_compose_rect(fd); get_out_crop_rect(fd); + get_codec_type(fd); if (do_cap && do_out && out_fd.g_fd() < 0) streaming_set_m2m(fd, exp_fd);