X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fraw.c;h=ee3edb6da7d4aa6a87a891874ca6ea4194faf3ee;hb=5c910fcad8de393c38c696282fedbc1bbc75e5de;hp=9dc88e842dbe16dcb2c90d942424f1b9ad49095d;hpb=e8750b00764f5148cd93f466f9e832eb8589aba7;p=ffmpeg diff --git a/libavcodec/raw.c b/libavcodec/raw.c index 9dc88e842db..ee3edb6da7d 100644 --- a/libavcodec/raw.c +++ b/libavcodec/raw.c @@ -1,204 +1,80 @@ /* * 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 FFmpeg. + * + * FFmpeg 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, + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ - + /** - * @file raw.c + * @file libavcodec/raw.c * Raw Video Codec */ - -#include "avcodec.h" - -typedef struct PixleFormatTag { - int pix_fmt; - unsigned int fourcc; -} PixelFormatTag; - -const PixelFormatTag pixelFormatTags[] = { - { PIX_FMT_YUV422, MKTAG('Y', '4', '2', '2') }, - { -1, 0 }, +#include "avcodec.h" +#include "raw.h" + +const PixelFormatTag ff_raw_pixelFormatTags[] = { + { PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */ + { PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') }, + { PIX_FMT_YUV420P, MKTAG('Y', 'V', '1', '2') }, + { PIX_FMT_YUV410P, MKTAG('Y', 'U', 'V', '9') }, + { PIX_FMT_YUV410P, MKTAG('Y', 'V', 'U', '9') }, + { PIX_FMT_YUV411P, MKTAG('Y', '4', '1', 'B') }, + { PIX_FMT_YUV422P, MKTAG('Y', '4', '2', 'B') }, + { PIX_FMT_YUV422P, MKTAG('P', '4', '2', '2') }, + { PIX_FMT_GRAY8, MKTAG('Y', '8', '0', '0') }, + { PIX_FMT_GRAY8, MKTAG(' ', ' ', 'Y', '8') }, + + + { PIX_FMT_YUYV422, MKTAG('Y', 'U', 'Y', '2') }, /* Packed formats */ + { PIX_FMT_YUYV422, MKTAG('Y', '4', '2', '2') }, + { PIX_FMT_YUYV422, MKTAG('V', '4', '2', '2') }, + { PIX_FMT_YUYV422, MKTAG('V', 'Y', 'U', 'Y') }, + { PIX_FMT_YUYV422, MKTAG('Y', 'U', 'N', 'V') }, + { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'V', 'Y') }, + { PIX_FMT_UYVY422, MKTAG('H', 'D', 'Y', 'C') }, + { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'V') }, + { PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'Y') }, + { PIX_FMT_UYVY422, MKTAG('u', 'y', 'v', '1') }, + { PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', '1') }, + { PIX_FMT_GRAY8, MKTAG('G', 'R', 'E', 'Y') }, + { PIX_FMT_RGB555, MKTAG('R', 'G', 'B', 15) }, + { PIX_FMT_BGR555, MKTAG('B', 'G', 'R', 15) }, + { PIX_FMT_RGB565, MKTAG('R', 'G', 'B', 16) }, + { PIX_FMT_BGR565, MKTAG('B', 'G', 'R', 16) }, + { PIX_FMT_RGB565, MKTAG( 3 , 0 , 0 , 0 ) }, + + /* quicktime */ + { PIX_FMT_UYVY422, MKTAG('2', 'v', 'u', 'y') }, + { PIX_FMT_UYVY422, MKTAG('A', 'V', 'U', 'I') }, /* FIXME merge both fields */ + { PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', '2') }, + { PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', 's') }, + { PIX_FMT_PAL8, MKTAG('W', 'R', 'A', 'W') }, + + { PIX_FMT_NONE, 0 }, }; -static int findPixelFormat(unsigned int fourcc) +unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt) { - const PixelFormatTag * tags = pixelFormatTags; + const PixelFormatTag * tags = ff_raw_pixelFormatTags; while (tags->pix_fmt >= 0) { - if (tags->fourcc == fourcc) - return tags->pix_fmt; + if (tags->pix_fmt == fmt) + return tags->fourcc; tags++; } - return PIX_FMT_YUV420P; -} - - -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 */ -} RawVideoContext; - - -static int raw_init(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - if (avctx->codec_tag) { - avctx->pix_fmt = findPixelFormat(avctx->codec_tag); - } - - context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); - context->buffer = av_malloc(context->length); - context->p = context->buffer; - - 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; - - 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; - } - - int bytesNeeded = context->length - (context->p - context->buffer); - if (buf_size < bytesNeeded) { - memcpy(context->p, buf, buf_size); - context->p += buf_size; - *data_size = 0; - return buf_size; - } - - 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(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - av_freep(& context->buffer); - return 0; } - -static int raw_encode(AVCodecContext *avctx, - unsigned char *frame, int buf_size, void *data) -{ - AVPicture * picture = data; - - unsigned char *src; - unsigned char *dest = frame; - int i, j; - - int w = avctx->width; - int h = avctx->height; - int size = avpicture_get_size(avctx->pix_fmt, w, h); - - if (size > buf_size) { - return -1; - } - - switch(avctx->pix_fmt) { - case PIX_FMT_YUV420P: - for(i=0;i<3;i++) { - if (i == 1) { - w >>= 1; - h >>= 1; - } - src = picture->data[i]; - for(j=0;jlinesize[i]; - } - } - break; - case PIX_FMT_YUV422P: - for(i=0;i<3;i++) { - if (i == 1) { - w >>= 1; - } - src = picture->data[i]; - for(j=0;jlinesize[i]; - } - } - break; - case PIX_FMT_YUV444P: - for(i=0;i<3;i++) { - src = picture->data[i]; - for(j=0;jlinesize[i]; - } - } - break; - case PIX_FMT_YUV422: - src = picture->data[0]; - for(j=0;jlinesize[0]; - } - break; - case PIX_FMT_RGB24: - case PIX_FMT_BGR24: - src = picture->data[0]; - for(j=0;jlinesize[0]; - } - break; - default: - return -1; - } - - return size; -} - - -AVCodec rawvideo_codec = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(RawVideoContext), - raw_init, - raw_encode, - raw_close, - raw_decode, -};