mirror of
git://nv-tegra.nvidia.com/tegra/v4l2-src/v4l2_libs.git
synced 2025-12-22 09:21:28 +03:00
Updating prebuilts and/or headers
60e29f95ea52df4407d771330897813cdb38340f - libv4lconvert/libv4lsyscall-priv.h 1f1d1e05443c4b824cd697c0ce5efa9ea1277964 - libv4lconvert/ov518-decomp.c f4d73412805f12fa08dd79a43798a7f8d7acece9 - libv4lconvert/pac207.c cc3f3e94a21795990610e63887c30528bde7b42e - libv4lconvert/bayer.c 3c49d99b9753208a9c1c2a9c738a1e7ad291ca22 - libv4lconvert/jpeg_memsrcdest.h 3271d74d02e2f33c16e3e50aeb1268eb9c440782 - libv4lconvert/rgbyuv.c 1949e23fe99ccd0a05dcd084848f6d38b0af7ab6 - libv4lconvert/hm12.c 4eff5c1a5e0b99ce4d6e9aa63645d9628467fdc3 - libv4lconvert/sn9c2028-decomp.c b2c19c2eac71d39d3fb883cdc159a69c2afa8fd6 - libv4lconvert/ov511-decomp.c 84c9c3812d4b5f237c8cd616d37fc1161a212acc - libv4lconvert/se401.c 463725aa4dd3fecaf89c0b8bbf4747f8f7577935 - libv4lconvert/jpeg.c fbbffd8182b4fe2e85289b6e784f70cba7ea7b1d - libv4lconvert/sq905c.c db3c69c666e451c5d4ef6d1b5a3117f4b128baa4 - libv4lconvert/libv4lconvert-priv.h 8b7644ac3d5c4161cfb6dcc2a34013f4c379c665 - libv4lconvert/libv4lconvert.export 5c0ab7b5e7c5c2eac27f7e92a4c84acd61983658 - libv4lconvert/Makefile 72953a5a3a56b0188d35f49246356b9c8c35756c - libv4lconvert/helper.c 66dd7958319442bd52ba40ede28fbfe31bb4e074 - libv4lconvert/cpia1.c 1d9c446cd8a232da87bd79acebc93e018ec72499 - libv4lconvert/jidctflt.c cc8982bb6f753249181c715fe6430ffefc78c23b - libv4lconvert/stv0680.c 25130d299463897a09e8b9adf72389dac2e89fa4 - libv4lconvert/tinyjpeg-internal.h 22a502c238e48f4b939c81de41feccfc7c366766 - libv4lconvert/Makefile.dGPU fb3344cfa8df97688332ee4fd3b17968437e8ad5 - libv4lconvert/helper-funcs.h 5430e46abb1ac7039ed0309ca338237533ff29c9 - libv4lconvert/sn9c20x.c d6c1aba89bbcb6fef46a6f22b7ea01025435c44d - libv4lconvert/Makefile.am 3e8e6c1fb85e3c4b58c4e9b2b0a223ddc793edcb - libv4lconvert/libv4lconvert.pc.in 6ad4947dca51a7e67e056561cdb445d6c354d23c - libv4lconvert/libv4lconvert.c ff7444c48a8da88f8a466cfb138e30e585828cb3 - libv4lconvert/jl2005bcd.c 803c4d0b9364050eda163452b8792e62e221ab6d - libv4lconvert/tinyjpeg.h f061a4e0e45ca8e0dbab630dd477e19a6c915fda - libv4lconvert/spca501.c 07f8e7c84abfbbe76d49d8bfd1f4eae6ea39a90b - libv4lconvert/jpgl.c fa751ff0f78845f3b4591396710df3b165bc8d11 - libv4lconvert/mr97310a.c be9e3bf3d7d1086b6eed0c1bf2f574c2b1737c00 - libv4lconvert/tinyjpeg.c 033894511bd7e8a374a52486889658faa17918c4 - libv4lconvert/flip.c b694b6348e035b3da880824c2c2768145c9b5199 - libv4lconvert/jpeg_memsrcdest.c 725c9b8d0bfadba566cf200921e602961cb12705 - libv4lconvert/spca561-decompress.c ddd39b2fe0e2a86a6c64031ccc0d36edfd9b0f1a - libv4lconvert/sn9c10x.c f08c902ecd48c2739956606b502fc0b8e4007703 - libv4lconvert/crop.c dae9c69b7f019d7d4494cd56e2cf757e8510824a - libv4lconvert/processing/whitebalance.c 0390d660eb130f0e580832bcf8ad5069010d2696 - libv4lconvert/processing/libv4lprocessing.h a54c2cb0439e606af01d0b4f02704f411819d98c - libv4lconvert/processing/libv4lprocessing.c ebf12bcf99f35fb9c400b04a1439e68598268249 - libv4lconvert/processing/gamma.c 33ab91b54108e8c24cbb80c5c335d96391d440b2 - libv4lconvert/processing/libv4lprocessing-priv.h 7da402829dbff238ca6ac829c037a85476185db6 - libv4lconvert/processing/autogain.c 1e08fb01a598d71e3fc69656c4f2291f7dc13105 - libv4lconvert/control/libv4lcontrol.h 19a7fd04cdeba61172f281806d030472dee79fcd - libv4lconvert/control/libv4lcontrol.c 70f4992835e964b2698473971904375333e3659b - libv4lconvert/control/libv4lcontrol-priv.h 9d456d1772885d900865a8958c0291e13d509de5 - libv4l2/v4l2convert.c 7fa618184ff89737d13164be0b79e227d81f398c - libv4l2/log.c d1f2b6f016cfb90c616d848418feb915e3737fa7 - libv4l2/libv4l2.c 766aaca553b0166eb736557e44ad42b69464aa53 - libv4l2/libv4l2.export e6516370c43e4869e05a540d2e4ef584ac64890a - libv4l2/v4l2-plugin.c 76ed189d56eb01e6b8bccb4490fad9a4b2af126d - libv4l2/Makefile 4ba98a607592ed0b8327b387af354544c65c9b67 - libv4l2/v4l2-plugin-android.c 2542aabb7fbff4b1a09faaadec6006c4410a6d10 - libv4l2/libv4l2-priv.h ffecae84262f548deac1da0fa51f1aba6b6f96a0 - libv4l2/Makefile.dGPU 8e335567bf404eeb3d180dd384309f687f2ab944 - libv4l2/Makefile.am cbcee4426c19c168c6f49d04af3a0b2e30c0b681 - libv4l2/libv4l2.pc.in c84a9a115a21d1fd20da0f6ca3df7b46dd23cd2a - include/config.h 1edc439e6c0fc98513fa4a69557eb6221d043be0 - include/libv4l2.h 6feb5b2b8c99c99712dd1ea7fe9ab674d58bf86b - include/libv4l1.h bc44111fd6b2f0374a9fc67b1b23666c5c498b2c - include/libv4l2rds.h f751b481c4a9203345cdbb6459d0f2882f7cdbd9 - include/libv4lconvert.h f2b73fa5ab10ea7038e58bd9a4461d8e16316249 - include/libv4l1-videodev.h 94434b9692371b7d5f54ddef2141d22d90079ce9 - include/libv4l-plugin.h c8b4fc511833f0993fa740a529e1f61e0f5a216f - include/libdvbv5/mpeg_es.h fb8d640da36b6a156cbe0ef12dc25468de89a2a1 - include/libdvbv5/dvb-sat.h 9a2b20076d6728b5799096e4149e33a73119e1ef - include/libdvbv5/desc_sat.h ac87e3306569dae329809f27ef227c5d50f0b60e - include/libdvbv5/desc_event_short.h efa3a711499f68ae370d49d98dc1963bf6bafcd8 - include/libdvbv5/desc_extension.h ad13bfa0b1642fc72cca387e62bc193974c8d5ee - include/libdvbv5/atsc_header.h b867a2e7941d718aa64b2f6a1402322b616cb2da - include/libdvbv5/pmt.h bdf514383ca0afe981cf4fd6af86440db2dc6667 - include/libdvbv5/pat.h 96db22ef84892a36d5df3cffa0b30d5bad01939c - include/libdvbv5/desc_logical_channel.h 92d4c28148d0b537c8afc289e1a76de68435cba0 - include/libdvbv5/dvb-scan.h 7544b5fb8f621a9c637c40d8f7a2a71f6ab4bd63 - include/libdvbv5/desc_hierarchy.h b72b6d1ffcdd81e3e631c7c20bb30e5c287dc7ff - include/libdvbv5/vct.h 9d523ee179af955a687662996050ee3cfaacf2ab - include/libdvbv5/crc32.h 6e6fd4c61c1f61006c63214cbe4868d49428ddb9 - include/libdvbv5/mpeg_pes.h d7a096d51e3050c8f52e0e2111d88b71a5313da1 - include/libdvbv5/dvb-demux.h 5b4a5e7fb30a7f28118be012837e73a7151d2619 - include/libdvbv5/cat.h 30e9a7240938943de2725f2b335b19ad320179a5 - include/libdvbv5/header.h 4c412880f0c49cd00cb16e56eed082c4744211a5 - include/libdvbv5/countries.h e81b7f75c11f175cf365fc7fb535e80828f10e24 - include/libdvbv5/dvb-file.h 2560f18846a535a2c02e1ae449511e731f11c011 - include/libdvbv5/desc_ca_identifier.h c18291ff9009bfe71a2c7c6f0fce75331dc95e30 - include/libdvbv5/sdt.h 44ab16a8d4eae09690c71a6301927c1da55dda6d - include/libdvbv5/descriptors.h 188fc2cbec97288787a7f66554a4b6288224f980 - include/libdvbv5/desc_isdbt_delivery.h c1212a9308d96730de547648d3cda2fc144d0e29 - include/libdvbv5/desc_atsc_service_location.h 7fb0966c6a1ccdf1a8844aed4a94d4ae1d02fcd7 - include/libdvbv5/dvb-fe.h 40a06b5375dbc0de88a15d26cc6c1e9a505119bc - include/libdvbv5/eit.h 22c83d133e5c1d2648efb3028e0d89c970d0aad4 - include/libdvbv5/desc_partial_reception.h 1ba874a7cad36ff31e4af3bfb37b98c05063d6b2 - include/libdvbv5/desc_event_extended.h 146f4f53fc49c66b59905249c0142efffd72fc54 - include/libdvbv5/desc_network_name.h 100c02ce3bc364ddff895c75f4fb1f928a748d2d - include/libdvbv5/desc_cable_delivery.h 7645dda247bcd45628afbb74ec2707a47050992e - include/libdvbv5/nit.h 73b7b0cf684de0e8a4eae49a8521f81b411d7b72 - include/libdvbv5/desc_ts_info.h 6bd2ed0beaf6aa4838e239198564fd8e1d20a3a1 - include/libdvbv5/desc_t2_delivery.h d562371bb8a3b961c4d63a0f5618453bdff4bcd3 - include/libdvbv5/dvb-log.h ef979f3276cc3cad6e947865a42643fbba860c69 - include/libdvbv5/mgt.h 2f55ba765c689500401111747bb381b5aca77b30 - include/libdvbv5/desc_ca.h 450fab787e61210c0c5f527df92c31c90b44a113 - include/libdvbv5/desc_service.h cabecc6d7c9fdf1c437273bd6a746bf83c156f72 - include/libdvbv5/desc_frequency_list.h 5e2dfc1d9a71805389e9a7932812695d0309050c - include/libdvbv5/dvb-frontend.h 7a6093b13354d054cac78ea118a96e813cac3395 - include/libdvbv5/atsc_eit.h 9b5cfad4a5f41cbf886507da6e79b07314827b32 - include/libdvbv5/desc_language.h 98365b48442b9e3abb58101983b5da8c14f78289 - include/libdvbv5/dvb-v5-std.h 4fe7def34ff640fc5e327b3596298169fdfe2f1c - include/libdvbv5/mpeg_ts.h 02168c58e3c772f116f075085579ac4a8422e819 - include/libdvbv5/desc_terrestrial_delivery.h Change-Id: I7742030e0152d79f1391a280009fcb52d3142542
This commit is contained in:
svcmobrel-release
428
libv4lconvert/jpeg.c
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428
libv4lconvert/jpeg.c
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@@ -0,0 +1,428 @@
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/*
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# (C) 2008-2011 Hans de Goede <hdegoede@redhat.com>
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License, version 2.1,
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# as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*/
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#ifdef ANDROID
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#include <android-config.h>
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#else
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#include <config.h>
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include "libv4lconvert-priv.h"
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#ifdef HAVE_JPEG
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#include "jpeg_memsrcdest.h"
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#endif
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int v4lconvert_decode_jpeg_tinyjpeg(struct v4lconvert_data *data,
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unsigned char *src, int src_size, unsigned char *dest,
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struct v4l2_format *fmt, unsigned int dest_pix_fmt, int flags)
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{
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int result = 0;
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unsigned char *components[3];
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unsigned int header_width, header_height;
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unsigned int width = fmt->fmt.pix.width;
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unsigned int height = fmt->fmt.pix.height;
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if (!data->tinyjpeg) {
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data->tinyjpeg = tinyjpeg_init();
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if (!data->tinyjpeg)
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return v4lconvert_oom_error(data);
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}
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flags |= TINYJPEG_FLAGS_MJPEG_TABLE;
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tinyjpeg_set_flags(data->tinyjpeg, flags);
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if (tinyjpeg_parse_header(data->tinyjpeg, src, src_size)) {
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V4LCONVERT_ERR("parsing JPEG header: %s",
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tinyjpeg_get_errorstring(data->tinyjpeg));
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errno = EAGAIN;
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return -1;
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}
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tinyjpeg_get_size(data->tinyjpeg, &header_width, &header_height);
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if (data->control_flags & V4LCONTROL_ROTATED_90_JPEG) {
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unsigned int tmp = width;
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width = height;
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height = tmp;
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}
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if (header_width != width || header_height != height) {
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V4LCONVERT_ERR("unexpected width / height in JPEG header: "
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"expected: %ux%u, header: %ux%u\n",
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width, height, header_width, header_height);
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errno = EIO;
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return -1;
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}
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fmt->fmt.pix.width = header_width;
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fmt->fmt.pix.height = header_height;
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components[0] = dest;
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switch (dest_pix_fmt) {
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case V4L2_PIX_FMT_RGB24:
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tinyjpeg_set_components(data->tinyjpeg, components, 1);
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result = tinyjpeg_decode(data->tinyjpeg, TINYJPEG_FMT_RGB24);
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break;
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case V4L2_PIX_FMT_BGR24:
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tinyjpeg_set_components(data->tinyjpeg, components, 1);
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result = tinyjpeg_decode(data->tinyjpeg, TINYJPEG_FMT_BGR24);
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break;
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case V4L2_PIX_FMT_YUV420:
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components[1] = components[0] + width * height;
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components[2] = components[1] + width * height / 4;
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tinyjpeg_set_components(data->tinyjpeg, components, 3);
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result = tinyjpeg_decode(data->tinyjpeg, TINYJPEG_FMT_YUV420P);
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break;
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case V4L2_PIX_FMT_YVU420:
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components[2] = components[0] + width * height;
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components[1] = components[2] + width * height / 4;
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tinyjpeg_set_components(data->tinyjpeg, components, 3);
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result = tinyjpeg_decode(data->tinyjpeg, TINYJPEG_FMT_YUV420P);
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break;
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}
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if (result) {
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/* The JPEG header checked out ok but we got an error
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during decompression. Some webcams, esp pixart and
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sn9c20x based ones regulary generate corrupt frames,
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which are best thrown away to avoid flashes in the
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video stream. We use EPIPE to signal the upper layer
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we have some video data, but it is incomplete.
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The upper layer (usually libv4l2) should respond to
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this by trying a number of times to get a new frame
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and if that fails just passing up whatever we did
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manage to decompress. */
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V4LCONVERT_ERR("decompressing JPEG: %s",
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tinyjpeg_get_errorstring(data->tinyjpeg));
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errno = EPIPE;
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return -1;
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}
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return 0;
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}
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#ifdef HAVE_JPEG
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static void jerr_error_exit(j_common_ptr cinfo)
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{
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struct v4lconvert_data *data = cinfo->client_data;
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longjmp(data->jerr_jmp_state, data->jerr_errno);
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}
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static void jerr_emit_message(j_common_ptr cinfo, int msg_level)
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{
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char buffer[JMSG_LENGTH_MAX];
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struct v4lconvert_data *data = cinfo->client_data;
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/* < -1 error, == -1 warning, >= 0 trace */
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if (msg_level < -1)
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return;
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cinfo->err->format_message(cinfo, buffer);
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snprintf(data->error_msg, V4LCONVERT_ERROR_MSG_SIZE,
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"v4l-convert: libjpeg error: %s\n", buffer);
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}
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static void init_libjpeg_cinfo(struct v4lconvert_data *data)
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{
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struct jpeg_compress_struct cinfo;
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unsigned char *jpeg_header = NULL;
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unsigned long jpeg_header_size = 0;
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if (data->cinfo_initialized)
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return;
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/* Setup our error handling */
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jpeg_std_error(&data->jerr);
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data->jerr.error_exit = jerr_error_exit;
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data->jerr.emit_message = jerr_emit_message;
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/* Create a jpeg compression object with default params and write
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default jpeg headers to a mem buffer, so that we can use them to
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pre-fill a jpeg_decompress_struct with default quant and huffman
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tables, so that libjpeg can be used to parse [m]jpg-s with
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incomplete headers */
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cinfo.err = &data->jerr;
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cinfo.client_data = data;
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jpeg_create_compress(&cinfo);
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jpeg_mem_dest(&cinfo, &jpeg_header, &jpeg_header_size);
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cinfo.input_components = 3;
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cinfo.in_color_space = JCS_RGB;
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jpeg_set_defaults(&cinfo);
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jpeg_write_tables(&cinfo);
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jpeg_destroy_compress(&cinfo);
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/* Init the jpeg_decompress_struct */
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data->cinfo.err = &data->jerr;
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data->cinfo.client_data = data;
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jpeg_create_decompress(&data->cinfo);
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jpeg_mem_src(&data->cinfo, jpeg_header, jpeg_header_size);
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jpeg_read_header(&data->cinfo, FALSE);
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free(jpeg_header);
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data->cinfo_initialized = 1;
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}
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static int decode_libjpeg_h_samp1(struct v4lconvert_data *data,
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unsigned char *ydest, unsigned char *udest, unsigned char *vdest,
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int v_samp)
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{
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struct jpeg_decompress_struct *cinfo = &data->cinfo;
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int x, y;
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unsigned char *uv_buf;
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unsigned int width = cinfo->image_width;
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JSAMPROW y_rows[16], u_rows[8], v_rows[8];
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JSAMPARRAY rows[3] = { y_rows, u_rows, v_rows };
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uv_buf = v4lconvert_alloc_buffer(width * 16,
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&data->convert_pixfmt_buf,
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&data->convert_pixfmt_buf_size);
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if (!uv_buf)
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return v4lconvert_oom_error(data);
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for (y = 0; y < 8; y++) {
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u_rows[y] = uv_buf;
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uv_buf += width;
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v_rows[y] = uv_buf;
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uv_buf += width;
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}
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uv_buf -= width * 16;
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while (cinfo->output_scanline < cinfo->image_height) {
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for (y = 0; y < 8 * v_samp; y++) {
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y_rows[y] = ydest;
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ydest += cinfo->image_width;
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}
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y = jpeg_read_raw_data(cinfo, rows, 8 * v_samp);
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if (y != 8 * v_samp)
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return -1;
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/* For v_samp == 1 skip copying uv vals every other time */
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if (cinfo->output_scanline % 16)
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||||
continue;
|
||||
|
||||
/* Copy over every other u + v pixel for 8 lines */
|
||||
for (y = 0; y < 8; y++) {
|
||||
for (x = 0; x < width; x += 2) {
|
||||
*udest++ = *uv_buf++;
|
||||
uv_buf++;
|
||||
}
|
||||
for (x = 0; x < width; x += 2) {
|
||||
*vdest++ = *uv_buf++;
|
||||
uv_buf++;
|
||||
}
|
||||
}
|
||||
uv_buf -= width * 16;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int decode_libjpeg_h_samp2(struct v4lconvert_data *data,
|
||||
unsigned char *ydest, unsigned char *udest, unsigned char *vdest,
|
||||
int v_samp)
|
||||
{
|
||||
struct jpeg_decompress_struct *cinfo = &data->cinfo;
|
||||
int y;
|
||||
unsigned int width = cinfo->image_width;
|
||||
JSAMPROW y_rows[16], u_rows[8], v_rows[8];
|
||||
JSAMPARRAY rows[3] = { y_rows, u_rows, v_rows };
|
||||
|
||||
while (cinfo->output_scanline < cinfo->image_height) {
|
||||
for (y = 0; y < 8 * v_samp; y++) {
|
||||
y_rows[y] = ydest;
|
||||
ydest += width;
|
||||
}
|
||||
/*
|
||||
* For v_samp == 1 were going to get 1 set of uv values per
|
||||
* line, but we need only 1 set per 2 lines since our output
|
||||
* has v_samp == 2. We store every 2 sets in 1 line,
|
||||
* effectively using the second set for each output line.
|
||||
*/
|
||||
if (v_samp == 1) {
|
||||
for (y = 0; y < 8; y++) {
|
||||
u_rows[y] = udest;
|
||||
v_rows[y] = vdest;
|
||||
y++;
|
||||
u_rows[y] = udest;
|
||||
v_rows[y] = vdest;
|
||||
udest += width / 2;
|
||||
vdest += width / 2;
|
||||
}
|
||||
} else { /* v_samp == 2 */
|
||||
for (y = 0; y < 8; y++) {
|
||||
u_rows[y] = udest;
|
||||
v_rows[y] = vdest;
|
||||
udest += width / 2;
|
||||
vdest += width / 2;
|
||||
}
|
||||
}
|
||||
|
||||
y = jpeg_read_raw_data(cinfo, rows, 8 * v_samp);
|
||||
if (y != 8 * v_samp)
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int v4lconvert_decode_jpeg_libjpeg(struct v4lconvert_data *data,
|
||||
unsigned char *src, int src_size, unsigned char *dest,
|
||||
struct v4l2_format *fmt, unsigned int dest_pix_fmt)
|
||||
{
|
||||
unsigned int width = fmt->fmt.pix.width;
|
||||
unsigned int height = fmt->fmt.pix.height;
|
||||
int result = 0;
|
||||
|
||||
/* libjpeg errors before decoding the first line should signal EAGAIN */
|
||||
data->jerr_errno = EAGAIN;
|
||||
result = setjmp(data->jerr_jmp_state);
|
||||
if (result) {
|
||||
if (data->cinfo_initialized)
|
||||
jpeg_abort_decompress(&data->cinfo);
|
||||
errno = result;
|
||||
return -1;
|
||||
}
|
||||
|
||||
init_libjpeg_cinfo(data);
|
||||
|
||||
jpeg_mem_src(&data->cinfo, src, src_size);
|
||||
jpeg_read_header(&data->cinfo, TRUE);
|
||||
|
||||
if (data->cinfo.image_width != width ||
|
||||
data->cinfo.image_height != height) {
|
||||
V4LCONVERT_ERR("unexpected width / height in JPEG header: "
|
||||
"expected: %ux%u, header: %ux%u\n", width,
|
||||
height, data->cinfo.image_width,
|
||||
data->cinfo.image_height);
|
||||
errno = EIO;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (data->cinfo.num_components != 3) {
|
||||
V4LCONVERT_ERR("unexpected no components in JPEG: %d\n",
|
||||
data->cinfo.num_components);
|
||||
errno = EIO;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (dest_pix_fmt == V4L2_PIX_FMT_RGB24 ||
|
||||
dest_pix_fmt == V4L2_PIX_FMT_BGR24) {
|
||||
JSAMPROW row_pointer[1];
|
||||
|
||||
#ifdef JCS_EXTENSIONS
|
||||
if (dest_pix_fmt == V4L2_PIX_FMT_BGR24)
|
||||
data->cinfo.out_color_space = JCS_EXT_BGR;
|
||||
#endif
|
||||
row_pointer[0] = dest;
|
||||
jpeg_start_decompress(&data->cinfo);
|
||||
/* Make libjpeg errors report that we've got some data */
|
||||
data->jerr_errno = EPIPE;
|
||||
while (data->cinfo.output_scanline < height) {
|
||||
jpeg_read_scanlines(&data->cinfo, row_pointer, 1);
|
||||
row_pointer[0] += 3 * width;
|
||||
}
|
||||
jpeg_finish_decompress(&data->cinfo);
|
||||
#ifndef JCS_EXTENSIONS
|
||||
if (dest_pix_fmt == V4L2_PIX_FMT_BGR24)
|
||||
v4lconvert_swap_rgb(dest, dest, width, height);
|
||||
#endif
|
||||
} else {
|
||||
int h_samp, v_samp;
|
||||
unsigned char *udest, *vdest;
|
||||
|
||||
if (data->cinfo.max_h_samp_factor == 2 &&
|
||||
data->cinfo.cur_comp_info[0]->h_samp_factor == 2 &&
|
||||
data->cinfo.cur_comp_info[1]->h_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[2]->h_samp_factor == 1) {
|
||||
h_samp = 2;
|
||||
#if 0 /* HDG: untested, disable for now */
|
||||
} else if (data->cinfo.max_h_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[0]->h_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[1]->h_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[2]->h_samp_factor == 1) {
|
||||
h_samp = 1;
|
||||
#endif
|
||||
} else {
|
||||
fprintf(stderr,
|
||||
"libv4lconvert: unsupported jpeg h-sampling "
|
||||
"factors %d:%d:%d, please report this to "
|
||||
"hdegoede@redhat.com\n",
|
||||
data->cinfo.cur_comp_info[0]->h_samp_factor,
|
||||
data->cinfo.cur_comp_info[1]->h_samp_factor,
|
||||
data->cinfo.cur_comp_info[2]->h_samp_factor);
|
||||
errno = EOPNOTSUPP;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (data->cinfo.max_v_samp_factor == 2 &&
|
||||
data->cinfo.cur_comp_info[0]->v_samp_factor == 2 &&
|
||||
data->cinfo.cur_comp_info[1]->v_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[2]->v_samp_factor == 1) {
|
||||
v_samp = 2;
|
||||
} else if (data->cinfo.max_v_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[0]->v_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[1]->v_samp_factor == 1 &&
|
||||
data->cinfo.cur_comp_info[2]->v_samp_factor == 1) {
|
||||
v_samp = 1;
|
||||
} else {
|
||||
fprintf(stderr,
|
||||
"libv4lconvert: unsupported jpeg v-sampling "
|
||||
"factors %d:%d:%d, please report this to "
|
||||
"hdegoede@redhat.com\n",
|
||||
data->cinfo.cur_comp_info[0]->v_samp_factor,
|
||||
data->cinfo.cur_comp_info[1]->v_samp_factor,
|
||||
data->cinfo.cur_comp_info[2]->v_samp_factor);
|
||||
errno = EOPNOTSUPP;
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* We don't want any padding as that may overflow our dest */
|
||||
if (width % (8 * h_samp) || height % (8 * v_samp)) {
|
||||
V4LCONVERT_ERR(
|
||||
"resolution is not a multiple of dctsize");
|
||||
errno = EIO;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (dest_pix_fmt == V4L2_PIX_FMT_YVU420) {
|
||||
vdest = dest + width * height;
|
||||
udest = vdest + (width * height) / 4;
|
||||
} else {
|
||||
udest = dest + width * height;
|
||||
vdest = udest + (width * height) / 4;
|
||||
}
|
||||
|
||||
data->cinfo.raw_data_out = TRUE;
|
||||
data->cinfo.do_fancy_upsampling = FALSE;
|
||||
jpeg_start_decompress(&data->cinfo);
|
||||
/* Make libjpeg errors report that we've got some data */
|
||||
data->jerr_errno = EPIPE;
|
||||
if (h_samp == 1) {
|
||||
result = decode_libjpeg_h_samp1(data, dest, udest,
|
||||
vdest, v_samp);
|
||||
} else {
|
||||
result = decode_libjpeg_h_samp2(data, dest, udest,
|
||||
vdest, v_samp);
|
||||
}
|
||||
if (result)
|
||||
jpeg_abort_decompress(&data->cinfo);
|
||||
else
|
||||
jpeg_finish_decompress(&data->cinfo);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
#endif // HAVE_JPEG
|
||||
Reference in New Issue
Block a user