X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fraw.c;h=6f0c9230b954a7291e707f17386e53c0e26a3c07;hb=71f7b22dba60524b2285643ae0b49d8f64977129;hp=a8a009bad1d389be661b06a472d59ba9957505e8;hpb=3dc10d4742803d91d6c8b2dd45d730f865f7b1f2;p=ffmpeg diff --git a/libavcodec/raw.c b/libavcodec/raw.c index a8a009bad1d..6f0c9230b95 100644 --- a/libavcodec/raw.c +++ b/libavcodec/raw.c @@ -1,183 +1,160 @@ /* * Raw Video Codec - * Copyright (c) 2001 Fabrice Bellard. + * Copyright (c) 2001 Fabrice Bellard * - * This library is free software; you can redistribute it and/or + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ - + /** - * @file raw.c + * @file * Raw Video Codec */ - -#include "avcodec.h" - -typedef struct RawVideoContext { - unsigned char * buffer; /* block of memory for holding one frame */ - unsigned char * p; /* current position in buffer */ - int length; /* number of bytes in buffer */ - AVFrame pic; ///< AVCodecContext.coded_frame -} RawVideoContext; - -typedef struct PixleFormatTag { - int pix_fmt; - unsigned int fourcc; -} PixelFormatTag; - -const PixelFormatTag pixelFormatTags[] = { - { PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */ - { PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') }, - { PIX_FMT_YUV410P, MKTAG('Y', 'U', 'V', '9') }, - { PIX_FMT_YUV411P, MKTAG('Y', '4', '1', 'B') }, - { PIX_FMT_YUV422P, MKTAG('Y', '4', '2', 'B') }, - { PIX_FMT_GRAY8, MKTAG('Y', '8', '0', '0') }, - { PIX_FMT_GRAY8, MKTAG(' ', ' ', 'Y', '8') }, - - { PIX_FMT_YUV422, MKTAG('Y', '4', '2', '2') }, /* Packed formats */ - { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'V', 'Y') }, - { PIX_FMT_GRAY8, MKTAG('G', 'R', 'E', 'Y') }, - - { -1, 0 }, +#include "avcodec.h" +#include "raw.h" +#include "libavutil/common.h" + +const PixelFormatTag ff_raw_pix_fmt_tags[] = { + { AV_PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */ + { AV_PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') }, + { AV_PIX_FMT_YUV420P, MKTAG('Y', 'V', '1', '2') }, + { AV_PIX_FMT_YUV410P, MKTAG('Y', 'U', 'V', '9') }, + { AV_PIX_FMT_YUV410P, MKTAG('Y', 'V', 'U', '9') }, + { AV_PIX_FMT_YUV411P, MKTAG('Y', '4', '1', 'B') }, + { AV_PIX_FMT_YUV422P, MKTAG('Y', '4', '2', 'B') }, + { AV_PIX_FMT_YUV422P, MKTAG('P', '4', '2', '2') }, + { AV_PIX_FMT_YUV422P, MKTAG('Y', 'V', '1', '6') }, + /* yuvjXXX formats are deprecated hacks specific to libav*, + they are identical to yuvXXX */ + { AV_PIX_FMT_YUVJ420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */ + { AV_PIX_FMT_YUVJ420P, MKTAG('I', 'Y', 'U', 'V') }, + { AV_PIX_FMT_YUVJ420P, MKTAG('Y', 'V', '1', '2') }, + { AV_PIX_FMT_YUVJ422P, MKTAG('Y', '4', '2', 'B') }, + { AV_PIX_FMT_YUVJ422P, MKTAG('P', '4', '2', '2') }, + { AV_PIX_FMT_GRAY8, MKTAG('Y', '8', '0', '0') }, + { AV_PIX_FMT_GRAY8, MKTAG('Y', '8', ' ', ' ') }, + + { AV_PIX_FMT_YUYV422, MKTAG('Y', 'U', 'Y', '2') }, /* Packed formats */ + { AV_PIX_FMT_YUYV422, MKTAG('Y', '4', '2', '2') }, + { AV_PIX_FMT_YUYV422, MKTAG('V', '4', '2', '2') }, + { AV_PIX_FMT_YUYV422, MKTAG('V', 'Y', 'U', 'Y') }, + { AV_PIX_FMT_YUYV422, MKTAG('Y', 'U', 'N', 'V') }, + { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'V', 'Y') }, + { AV_PIX_FMT_UYVY422, MKTAG('H', 'D', 'Y', 'C') }, + { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'V') }, + { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'Y') }, + { AV_PIX_FMT_UYVY422, MKTAG('u', 'y', 'v', '1') }, + { AV_PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', '1') }, + { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'R', 'n') }, /* Avid AVI Codec 1:1 */ + { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', '1', 'x') }, /* Avid 1:1x */ + { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'u', 'p') }, + { AV_PIX_FMT_UYVY422, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */ + { AV_PIX_FMT_UYVY422, MKTAG('a', 'u', 'v', '2') }, + { AV_PIX_FMT_UYYVYY411, MKTAG('Y', '4', '1', '1') }, + { AV_PIX_FMT_GRAY8, MKTAG('G', 'R', 'E', 'Y') }, + { AV_PIX_FMT_NV12, MKTAG('N', 'V', '1', '2') }, + { AV_PIX_FMT_NV21, MKTAG('N', 'V', '2', '1') }, + + /* nut */ + { AV_PIX_FMT_RGB555LE, MKTAG('R', 'G', 'B', 15) }, + { AV_PIX_FMT_BGR555LE, MKTAG('B', 'G', 'R', 15) }, + { AV_PIX_FMT_RGB565LE, MKTAG('R', 'G', 'B', 16) }, + { AV_PIX_FMT_BGR565LE, MKTAG('B', 'G', 'R', 16) }, + { AV_PIX_FMT_RGB555BE, MKTAG(15 , 'B', 'G', 'R') }, + { AV_PIX_FMT_BGR555BE, MKTAG(15 , 'R', 'G', 'B') }, + { AV_PIX_FMT_RGB565BE, MKTAG(16 , 'B', 'G', 'R') }, + { AV_PIX_FMT_BGR565BE, MKTAG(16 , 'R', 'G', 'B') }, + { AV_PIX_FMT_RGB444LE, MKTAG('R', 'G', 'B', 12) }, + { AV_PIX_FMT_BGR444LE, MKTAG('B', 'G', 'R', 12) }, + { AV_PIX_FMT_RGB444BE, MKTAG(12 , 'B', 'G', 'R') }, + { AV_PIX_FMT_BGR444BE, MKTAG(12 , 'R', 'G', 'B') }, + { AV_PIX_FMT_RGBA, MKTAG('R', 'G', 'B', 'A') }, + { AV_PIX_FMT_BGRA, MKTAG('B', 'G', 'R', 'A') }, + { AV_PIX_FMT_ABGR, MKTAG('A', 'B', 'G', 'R') }, + { AV_PIX_FMT_ARGB, MKTAG('A', 'R', 'G', 'B') }, + { AV_PIX_FMT_RGB24, MKTAG('R', 'G', 'B', 24 ) }, + { AV_PIX_FMT_BGR24, MKTAG('B', 'G', 'R', 24 ) }, + { AV_PIX_FMT_YUV411P, MKTAG('4', '1', '1', 'P') }, + { AV_PIX_FMT_YUV422P, MKTAG('4', '2', '2', 'P') }, + { AV_PIX_FMT_YUVJ422P, MKTAG('4', '2', '2', 'P') }, + { AV_PIX_FMT_YUV440P, MKTAG('4', '4', '0', 'P') }, + { AV_PIX_FMT_YUVJ440P, MKTAG('4', '4', '0', 'P') }, + { AV_PIX_FMT_YUV444P, MKTAG('4', '4', '4', 'P') }, + { AV_PIX_FMT_YUVJ444P, MKTAG('4', '4', '4', 'P') }, + { AV_PIX_FMT_MONOWHITE,MKTAG('B', '1', 'W', '0') }, + { AV_PIX_FMT_MONOBLACK,MKTAG('B', '0', 'W', '1') }, + { AV_PIX_FMT_BGR8, MKTAG('B', 'G', 'R', 8 ) }, + { AV_PIX_FMT_RGB8, MKTAG('R', 'G', 'B', 8 ) }, + { AV_PIX_FMT_BGR4, MKTAG('B', 'G', 'R', 4 ) }, + { AV_PIX_FMT_RGB4, MKTAG('R', 'G', 'B', 4 ) }, + { AV_PIX_FMT_RGB4_BYTE,MKTAG('B', '4', 'B', 'Y') }, + { AV_PIX_FMT_BGR4_BYTE,MKTAG('R', '4', 'B', 'Y') }, + { AV_PIX_FMT_RGB48LE, MKTAG('R', 'G', 'B', 48 ) }, + { AV_PIX_FMT_RGB48BE, MKTAG( 48, 'R', 'G', 'B') }, + { AV_PIX_FMT_BGR48LE, MKTAG('B', 'G', 'R', 48 ) }, + { AV_PIX_FMT_BGR48BE, MKTAG( 48, 'B', 'G', 'R') }, + { AV_PIX_FMT_GRAY16LE, MKTAG('Y', '1', 0 , 16 ) }, + { AV_PIX_FMT_GRAY16BE, MKTAG(16 , 0 , '1', 'Y') }, + { AV_PIX_FMT_YUV420P10LE, MKTAG('Y', '3', 11 , 10 ) }, + { AV_PIX_FMT_YUV420P10BE, MKTAG(10 , 11 , '3', 'Y') }, + { AV_PIX_FMT_YUV422P10LE, MKTAG('Y', '3', 10 , 10 ) }, + { AV_PIX_FMT_YUV422P10BE, MKTAG(10 , 10 , '3', 'Y') }, + { AV_PIX_FMT_YUV444P10LE, MKTAG('Y', '3', 0 , 10 ) }, + { AV_PIX_FMT_YUV444P10BE, MKTAG(10 , 0 , '3', 'Y') }, + { AV_PIX_FMT_YUV420P16LE, MKTAG('Y', '3', 11 , 16 ) }, + { AV_PIX_FMT_YUV420P16BE, MKTAG(16 , 11 , '3', 'Y') }, + { AV_PIX_FMT_YUV422P16LE, MKTAG('Y', '3', 10 , 16 ) }, + { AV_PIX_FMT_YUV422P16BE, MKTAG(16 , 10 , '3', 'Y') }, + { AV_PIX_FMT_YUV444P16LE, MKTAG('Y', '3', 0 , 16 ) }, + { AV_PIX_FMT_YUV444P16BE, MKTAG(16 , 0 , '3', 'Y') }, + { AV_PIX_FMT_YUVA420P, MKTAG('Y', '4', 11 , 8 ) }, + { AV_PIX_FMT_Y400A, MKTAG('Y', '2', 0 , 8 ) }, + + /* quicktime */ + { AV_PIX_FMT_UYVY422, MKTAG('2', 'v', 'u', 'y') }, + { AV_PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', 'y') }, + { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'U', 'I') }, /* FIXME merge both fields */ + { AV_PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', '2') }, + { AV_PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', 's') }, + { AV_PIX_FMT_YUYV422, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */ + { AV_PIX_FMT_RGB555LE,MKTAG('L', '5', '5', '5') }, + { AV_PIX_FMT_RGB565LE,MKTAG('L', '5', '6', '5') }, + { AV_PIX_FMT_RGB565BE,MKTAG('B', '5', '6', '5') }, + { AV_PIX_FMT_BGR24, MKTAG('2', '4', 'B', 'G') }, + { AV_PIX_FMT_BGRA, MKTAG('B', 'G', 'R', 'A') }, + { AV_PIX_FMT_RGBA, MKTAG('R', 'G', 'B', 'A') }, + { AV_PIX_FMT_ABGR, MKTAG('A', 'B', 'G', 'R') }, + { AV_PIX_FMT_GRAY16BE,MKTAG('b', '1', '6', 'g') }, + { AV_PIX_FMT_RGB48BE, MKTAG('b', '4', '8', 'r') }, + + /* special */ + { AV_PIX_FMT_RGB565LE,MKTAG( 3 , 0 , 0 , 0 ) }, /* flipped RGB565LE */ + { AV_PIX_FMT_YUV444P, MKTAG('Y', 'V', '2', '4') }, /* YUV444P, swapped UV */ + + { AV_PIX_FMT_NONE, 0 }, }; -static int findPixelFormat(unsigned int fourcc) -{ - const PixelFormatTag * tags = pixelFormatTags; - while (tags->pix_fmt >= 0) { - if (tags->fourcc == fourcc) - return tags->pix_fmt; - tags++; - } - return PIX_FMT_YUV420P; -} - -static unsigned int findFourCC(int fmt) +unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat fmt) { - const PixelFormatTag * tags = pixelFormatTags; + const PixelFormatTag *tags = ff_raw_pix_fmt_tags; while (tags->pix_fmt >= 0) { if (tags->pix_fmt == fmt) - return tags->fourcc; - tags++; - } - return 0; -} - -/* RAW Decoder Implementation */ - -static int raw_init_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - if (avctx->codec_tag) - avctx->pix_fmt = findPixelFormat(avctx->codec_tag); - else if (avctx->bits_per_sample){ - switch(avctx->bits_per_sample){ - case 15: avctx->pix_fmt= PIX_FMT_RGB555; break; - case 16: avctx->pix_fmt= PIX_FMT_RGB565; break; - case 24: avctx->pix_fmt= PIX_FMT_BGR24 ; break; - case 32: avctx->pix_fmt= PIX_FMT_RGBA32; break; - } - } - - context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); - context->buffer = av_malloc(context->length); - context->p = context->buffer; - context->pic.pict_type = FF_I_TYPE; - context->pic.key_frame = 1; - - avctx->coded_frame= &context->pic; - - if (!context->buffer) - return -1; - - return 0; -} - -static int raw_decode(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - RawVideoContext *context = avctx->priv_data; - int bytesNeeded; - - AVPicture * picture = (AVPicture *) data; - - /* Early out without copy if packet size == frame size */ - if (buf_size == context->length && context->p == context->buffer) { - avpicture_fill(picture, buf, avctx->pix_fmt, avctx->width, avctx->height); - *data_size = sizeof(AVPicture); - return buf_size; - } - - bytesNeeded = context->length - (context->p - context->buffer); - if (buf_size < bytesNeeded) { - memcpy(context->p, buf, buf_size); - context->p += buf_size; - return buf_size; + return tags->fourcc; + tags++; } - - memcpy(context->p, buf, bytesNeeded); - context->p = context->buffer; - avpicture_fill(picture, context->buffer, avctx->pix_fmt, avctx->width, avctx->height); - *data_size = sizeof(AVPicture); - return bytesNeeded; -} - -static int raw_close_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - av_freep(&context->buffer); return 0; } - -/* RAW Encoder Implementation */ - -static int raw_init_encoder(AVCodecContext *avctx) -{ - avctx->coded_frame = (AVFrame *)avctx->priv_data; - avctx->coded_frame->pict_type = FF_I_TYPE; - avctx->coded_frame->key_frame = 1; - avctx->codec_tag = findFourCC(avctx->pix_fmt); - return 0; -} - -static int raw_encode(AVCodecContext *avctx, - unsigned char *frame, int buf_size, void *data) -{ - return avpicture_layout((AVPicture *)data, avctx->pix_fmt, avctx->width, - avctx->height, frame, buf_size); -} - -AVCodec rawvideo_encoder = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(AVFrame), - raw_init_encoder, - raw_encode, -}; - -AVCodec rawvideo_decoder = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(RawVideoContext), - raw_init_decoder, - NULL, - raw_close_decoder, - raw_decode, -};