mirror of
git://nv-tegra.nvidia.com/tegra/v4l2-src/v4l2_libs.git
synced 2025-12-22 17:39:13 +03:00
Updating prebuilts and/or headers
f07563fa1628a75c578152387638b1f217f730be - libv4lconvert/Makefile 6ac3c887c56c7d4345499cb5b7bfac9579a57d16 - libv4lconvert/cpia1.c 2d385802ec3690e78a961ce95431e98eb3f5fc6a - libv4lconvert/rgbyuv.c 43843cbdb81f3efee5873f5ed25ae1eb7745a9e5 - libv4lconvert/libv4lconvert-priv.h 002783c808dc565478c18bd27373792028264bb6 - libv4lconvert/ov518-decomp.c 4d49e6e897046e66e41c3563fec2eb2562abf813 - libv4lconvert/jpeg_memsrcdest.c a38fdb4c79518e972678745c93cd62881d72972b - libv4lconvert/Makefile.dGPU e9f783fb933606224252dfd3093afa36490f6f4c - libv4lconvert/Makefile.in 52900601a24ee9ffea87ca7fe6651e912e20235e - libv4lconvert/libv4lsyscall-priv.h d37f854500cbd759ad93ae89c6aa75c00b000931 - libv4lconvert/bayer.c 2cd1b994bb7999d0c08c19b1a2efd11707250852 - libv4lconvert/helper.c adac14b8826d05ddab33d595a803e92eaf84b797 - libv4lconvert/Makefile.am 6e806290f6e426c881322d362f189fa7b9e2f917 - libv4lconvert/sn9c10x.c ba44b6ac00a643e6df484f3172022e1b2628c0cc - libv4lconvert/jpgl.c fa06343de31dcf6d3d5862cc278396272fa838c4 - libv4lconvert/se401.c 4bd081bf25b63f5463d582ef36f77ba5e3711d0d - libv4lconvert/sq905c.c 940250beb5898bf254e7cd1ef9d7950a8db10af6 - libv4lconvert/mr97310a.c 5e177c3a7c157c25c4afcae031e79830237510f6 - libv4lconvert/libv4lconvert.c 1f362080c319355070cf409cfccf28d8c68d024e - libv4lconvert/sn9c2028-decomp.c 703ce22dc98d834490c7aa23ae73b9113e386221 - libv4lconvert/sn9c20x.c 018e503969b2e06a0ea639fc08f03a7476cc15b5 - libv4lconvert/jpeg_memsrcdest.h fb3344cfa8df97688332ee4fd3b17968437e8ad5 - libv4lconvert/helper-funcs.h d378cbdd377027e7528af47362a94ccb1ae15da3 - libv4lconvert/libv4lconvert.export 61710972d4e9bfcd00490c563d1bb5bde5480c9e - libv4lconvert/tinyjpeg.c 231571db9f8caa6fdc68138102029127a6b93812 - libv4lconvert/crop.c d62448a06539ecf6e3daae7faa299b6da8878054 - libv4lconvert/pac207.c 72b65c9f0f3c87dcae86a2afbea65a76f2c6bafd - libv4lconvert/tinyjpeg-internal.h a016f896e0e9f0cd8af7447b52651ed14c5a5b29 - libv4lconvert/jpeg.c 608a4c341a5df9daea647fbddc415cdaf27b0482 - libv4lconvert/spca561-decompress.c b03b32eae024bf59b6ceaf6b6d342383cd0b0673 - libv4lconvert/jl2005bcd.c 803c4d0b9364050eda163452b8792e62e221ab6d - libv4lconvert/tinyjpeg.h 2df34af8f9d747fb0e5c7c71954c788aff1c483f - libv4lconvert/stv0680.c 3e8e6c1fb85e3c4b58c4e9b2b0a223ddc793edcb - libv4lconvert/libv4lconvert.pc.in 02aa2e7d12b72fe4ce79cdf4009da61f35091e94 - libv4lconvert/flip.c 05038ef9efab175322a12d3d6620dba6298aa2a9 - libv4lconvert/spca501.c b2c19c2eac71d39d3fb883cdc159a69c2afa8fd6 - libv4lconvert/ov511-decomp.c 1d9c446cd8a232da87bd79acebc93e018ec72499 - libv4lconvert/jidctflt.c ed215eca170d07a6838be3796aad933adf89ece2 - libv4lconvert/hm12.c 193e9d2c997e21ce8ca02f25050fb8d2d62b6bfd - libv4lconvert/processing/autogain.c c894d4a9b9e0f95be9e7bade4f7f734ae0c6996c - libv4lconvert/processing/libv4lprocessing.c 4158e9c3d21cf0a064b99bdf8571df4f3ba6d5bb - libv4lconvert/processing/whitebalance.c be34baf0d2ce1374c841494ba27ccc352c444e98 - libv4lconvert/processing/gamma.c b48edcb4036ee5f4e77e9cb49dd1b52b1e7f2427 - libv4lconvert/processing/libv4lprocessing.h 967d27c0e09849338a69dc4b5647d1824f2cd2fb - libv4lconvert/processing/libv4lprocessing-priv.h 9f382ff1f2895b926f3596e0a8ae7637b5e6a2ac - libv4lconvert/control/libv4lcontrol.c 8c523bd3838004a4fa00430a38cbc6dbaa47286f - libv4lconvert/control/libv4lcontrol.h 4ce5e891af7857a3504d1350ef13015997dde62a - libv4lconvert/control/libv4lcontrol-priv.h bda0c1296aad2b3b178a76f38e26c20ce3b81233 - include/libv4l1.h a95818658d95c1602f2422e5f1fb54b9ca70536e - include/libv4l2rds.h 2d1932763a064ef1176450b1bb4dd242aa3c77bb - include/libv4lconvert.h 3517bc15e30852ad01ad9966ec7111a16a2263df - include/libv4l2.h 944cd9bc32420e73da3a7d3cb1d0ce707263c9f0 - include/libv4l1-videodev.h 7d9d199f4e6f4ba6f0d669ee5decd74355507137 - include/libv4l-plugin.h cfeaf0c16571e0c64bce50bcb8a6cd8d8c976187 - include/config.h d7d4fd219e36edadc17837bff78eb8323e2a115e - include/libdvbv5/libdvb-version.h 33071176eda60242f39927e572ac6b1c1bab32e2 - include/libdvbv5/desc_event_extended.h 29c2cd2554e4f4285ab8709e6eace38046d8ecdc - include/libdvbv5/desc_t2_delivery.h b42819db457bc6a23324faf259c0db1104741d99 - include/libdvbv5/dvb-scan.h bae10c2fa28bb522e9fc0bb5e4b0128ab6f90e65 - include/libdvbv5/desc_partial_reception.h f797ddac8e1adc6b29750f076df0f3a23cf630eb - include/libdvbv5/dvb-v5-std.h 48079dcae511070a8eeb55b004bd8ac06735ecc7 - include/libdvbv5/desc_ca.h f4eb8b615b7c5a245c76e3f448e6cd848d8cf765 - include/libdvbv5/desc_cable_delivery.h 170a50b570691975e0ff22faffeb0131fc47c7c8 - include/libdvbv5/desc_logical_channel.h c8f11e89456fc078c607d424e887babe72cd3684 - include/libdvbv5/nit.h d39a24d0d0a0fbe732881dd2734b10d842d88de9 - include/libdvbv5/header.h badc03677ddbcfa1d1188ddaaa4c272fccfe4a21 - include/libdvbv5/desc_atsc_service_location.h d3bad046037cad4a95778555021a1a1a6b3040d9 - include/libdvbv5/cat.h a614739513f62affb1059df81c064203d9fe2fcd - include/libdvbv5/desc_ca_identifier.h 6d70f699eb912c974dc06a19f9bdcb7dd0c27932 - include/libdvbv5/desc_service.h 0eda1161b34ca39b8528bc53d05fb0fc7d457f80 - include/libdvbv5/desc_frequency_list.h 22f6b663d50de467539201ecfdb363e9252c88bd - include/libdvbv5/atsc_eit.h 1c1292f060664abf6c12273a41b2bf6f704dd19b - include/libdvbv5/desc_sat.h 22de6de5e65530aa1ab38a2373db128e81983a4c - include/libdvbv5/desc_network_name.h 91178a5945e63c81051b57b7b2842139947a3b39 - include/libdvbv5/desc_extension.h 9ca776ad159cf84b2f68101bf279472741829047 - include/libdvbv5/descriptors.h fa7e8d5e996310e1dd47d5467780d533c8a93ad8 - include/libdvbv5/dvb-dev.h fed6115825c5b23e1e31ff80aab997f0a7b6c3fc - include/libdvbv5/sdt.h 4b892acd2ce77c060b50cf67f5faf9dc9b76edbb - include/libdvbv5/dvb-frontend.h 8b9f9e00f7bcdce58aef1d8d7234567af82e49b8 - include/libdvbv5/dvb-file.h b8a077b8e3c6e337223fc37685d217a81df112f1 - include/libdvbv5/dvb-demux.h 01a0afbe1a4f41cf58f9ce47d65b31e3df7c8680 - include/libdvbv5/pat.h 4a49c8b46947be16356d6355aa36d72d7baa946c - include/libdvbv5/vct.h c83200debc98ff8fa82030d36371a2caa230281a - include/libdvbv5/desc_language.h 21cea15c5d4faff2726f18bdf5b83e2210d472c4 - include/libdvbv5/mpeg_pes.h 825f75350da9fb148acc7d36af513da977105169 - include/libdvbv5/desc_isdbt_delivery.h 8f60bf43907b1eac3c1c2f031cf68a9bdebb3662 - include/libdvbv5/desc_ts_info.h 89cbb75f3e0952e4dfb145fdea776b45e05b7e76 - include/libdvbv5/desc_hierarchy.h 5c80a7ee23d1da2c91f60e79f7292248694b4f65 - include/libdvbv5/crc32.h 93b7b27ccc89e1ad4279eb12560e1dfc3d2ff1eb - include/libdvbv5/dvb-fe.h aeeb75989de4b2ecafa1b2fc5ed30787999eec1b - include/libdvbv5/mpeg_es.h dc684983365ffef353993faad0b105bcb87f4218 - include/libdvbv5/desc_event_short.h 5e3be50d1292109d59c80f920ba1b7a4bcbbdf56 - include/libdvbv5/eit.h f95a0206952db4cce561455accad66a37f9a4104 - include/libdvbv5/mgt.h 88f8c78bbaf22b345e2ccb68e9b787e649dac2c1 - include/libdvbv5/libdvb-version.h.in 74a66644980a66adeba21ecc40ebefa2b4480e25 - include/libdvbv5/pmt.h 7671f125c6f61eef85f55eb314097435b3772431 - include/libdvbv5/dvb-sat.h 26fd40a10548cdb9bd4aafdda4486f9d39fd5c9e - include/libdvbv5/countries.h 65db3beaf2ec19a43a870b2759e6aecb15a95c7b - include/libdvbv5/atsc_header.h 149f7eb3c71b8f65127d3c4f2143080b115697e5 - include/libdvbv5/desc_terrestrial_delivery.h 708af2b77b2c94ee9cf593b31e20471c80ea556b - include/libdvbv5/mpeg_ts.h ba205468e43ca16edf1ebec59dce9822044c1064 - include/libdvbv5/desc_registration_id.h e70b24d8d1f3a248735c2d724d3b92c49b7aaba5 - include/libdvbv5/dvb-log.h 2d0557eadd4cff02ab52e26778d35b6c34f09158 - libv4l2/libv4l2-priv.h 487af43db163be6d3604371b9a504c1df2a9bf6c - libv4l2/v4l2-plugin-android.c 0ac38b46fa1659db4c05660205f212389295e7ff - libv4l2/Makefile 8ac3789333a6cd18e7f35d3b66a8a4d0293feb78 - libv4l2/Makefile.dGPU fdd6e5e27aa8b41d5da77cb3b9be3fc3b8a44763 - libv4l2/libv4l2.export 1d37e5ea9231e7e0eea7d1a02938c6d1ae8ba791 - libv4l2/Makefile.in 51892a60925c37c865fe6eb9c923a552df180ebf - libv4l2/v4l2-plugin.c d4c7daee644a35244ac8a5e1009a3aeb1d4fd3da - libv4l2/Makefile.am 87856c7113d150dceb254b5d548f942e7fcaf8f1 - libv4l2/libv4l2.c d11ec5b8ce8390a72fd61457d7b8667378311191 - libv4l2/log.c cbcee4426c19c168c6f49d04af3a0b2e30c0b681 - libv4l2/libv4l2.pc.in 55bb16d05817a3ecf076174175b2ca5b56e729d8 - libv4l2/v4l2convert.c Change-Id: I92b00c7d65c1689c9d6ff337a6f2ae790e88a7cb
This commit is contained in:
svcmobrel-release
429
libv4lconvert/jpeg.c
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429
libv4lconvert/jpeg.c
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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 as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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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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}
|
||||
uv_buf -= width * 16;
|
||||
|
||||
while (cinfo->output_scanline < cinfo->image_height) {
|
||||
for (y = 0; y < 8 * v_samp; y++) {
|
||||
y_rows[y] = ydest;
|
||||
ydest += cinfo->image_width;
|
||||
}
|
||||
y = jpeg_read_raw_data(cinfo, rows, 8 * v_samp);
|
||||
if (y != 8 * v_samp)
|
||||
return -1;
|
||||
|
||||
/* For v_samp == 1 skip copying uv vals every other time */
|
||||
if (cinfo->output_scanline % 16)
|
||||
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