From 3a763f0f0b8e18ed3999400e063ca425333c77fe Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Mon, 9 Jul 2007 16:26:11 +0000 Subject: split rawvideo encoder and decoder in their own files Originally committed as revision 9560 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/Makefile | 2 + libavcodec/raw.c | 166 +--------------------------------------------------- libavcodec/raw.h | 39 ++++++++++++ libavcodec/rawdec.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++ libavcodec/rawenc.c | 54 +++++++++++++++++ 5 files changed, 249 insertions(+), 163 deletions(-) create mode 100644 libavcodec/raw.h create mode 100644 libavcodec/rawdec.c create mode 100644 libavcodec/rawenc.c diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 5d17125395..4494b0a8f1 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -137,6 +137,8 @@ OBJS-$(CONFIG_QTRLE_DECODER) += qtrle.o OBJS-$(CONFIG_QTRLE_ENCODER) += qtrleenc.o OBJS-$(CONFIG_RA_144_DECODER) += ra144.o OBJS-$(CONFIG_RA_288_DECODER) += ra288.o +OBJS-$(CONFIG_RAWVIDEO_DECODER) += rawdec.o +OBJS-$(CONFIG_RAWVIDEO_ENCODER) += rawenc.o OBJS-$(CONFIG_ROQ_DECODER) += roqvideodec.o roqvideo.o OBJS-$(CONFIG_ROQ_ENCODER) += roqvideoenc.o roqvideo.o elbg.o OBJS-$(CONFIG_ROQ_DPCM_DECODER) += dpcm.o diff --git a/libavcodec/raw.c b/libavcodec/raw.c index 7e681dccac..5f0a1bbe90 100644 --- a/libavcodec/raw.c +++ b/libavcodec/raw.c @@ -25,19 +25,9 @@ */ #include "avcodec.h" +#include "raw.h" -typedef struct RawVideoContext { - unsigned char * buffer; /* block of memory for holding one frame */ - int length; /* number of bytes in buffer */ - AVFrame pic; ///< AVCodecContext.coded_frame -} RawVideoContext; - -typedef struct PixelFormatTag { - int pix_fmt; - unsigned int fourcc; -} PixelFormatTag; - -static const PixelFormatTag pixelFormatTags[] = { +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') }, @@ -64,38 +54,9 @@ static const PixelFormatTag pixelFormatTags[] = { { -1, 0 }, }; -static const PixelFormatTag pixelFormatBpsAVI[] = { - { PIX_FMT_PAL8, 8 }, - { PIX_FMT_RGB555, 15 }, - { PIX_FMT_RGB555, 16 }, - { PIX_FMT_BGR24, 24 }, - { PIX_FMT_RGB32, 32 }, - { -1, 0 }, -}; - -static const PixelFormatTag pixelFormatBpsMOV[] = { - /* FIXME fix swscaler to support those */ - /* http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html */ - { PIX_FMT_PAL8, 8 }, - { PIX_FMT_BGR555, 16 }, - { PIX_FMT_RGB24, 24 }, - { PIX_FMT_BGR32_1, 32 }, - { -1, 0 }, -}; - -static int findPixelFormat(const PixelFormatTag *tags, unsigned int fourcc) -{ - while (tags->pix_fmt >= 0) { - if (tags->fourcc == fourcc) - return tags->pix_fmt; - tags++; - } - return PIX_FMT_YUV420P; -} - 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->pix_fmt == fmt) return tags->fourcc; @@ -103,124 +64,3 @@ unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt) } return 0; } - -/* RAW Decoder Implementation */ - -static int raw_init_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - if (avctx->codec_tag == MKTAG('r','a','w',' ')) - avctx->pix_fmt = findPixelFormat(pixelFormatBpsMOV, avctx->bits_per_sample); - else if (avctx->codec_tag) - avctx->pix_fmt = findPixelFormat(pixelFormatTags, avctx->codec_tag); - else if (avctx->bits_per_sample) - avctx->pix_fmt = findPixelFormat(pixelFormatBpsAVI, avctx->bits_per_sample); - - context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); - context->buffer = av_malloc(context->length); - 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 void flip(AVCodecContext *avctx, AVPicture * picture){ - if(!avctx->codec_tag && avctx->bits_per_sample && picture->linesize[2]==0){ - picture->data[0] += picture->linesize[0] * (avctx->height-1); - picture->linesize[0] *= -1; - } -} - -static int raw_decode(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - RawVideoContext *context = avctx->priv_data; - - AVFrame * frame = (AVFrame *) data; - AVPicture * picture = (AVPicture *) data; - - frame->interlaced_frame = avctx->coded_frame->interlaced_frame; - frame->top_field_first = avctx->coded_frame->top_field_first; - - if(buf_size < context->length - (avctx->pix_fmt==PIX_FMT_PAL8 ? 256*4 : 0)) - return -1; - - avpicture_fill(picture, buf, avctx->pix_fmt, avctx->width, avctx->height); - if(avctx->pix_fmt==PIX_FMT_PAL8 && buf_size < context->length){ - frame->data[1]= context->buffer; - } - if (avctx->palctrl && avctx->palctrl->palette_changed) { - memcpy(frame->data[1], avctx->palctrl->palette, AVPALETTE_SIZE); - avctx->palctrl->palette_changed = 0; - } - - flip(avctx, picture); - - if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2')) - { - // swap fields - unsigned char *tmp = picture->data[1]; - picture->data[1] = picture->data[2]; - picture->data[2] = tmp; - } - - *data_size = sizeof(AVPicture); - return buf_size; -} - -static int raw_close_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - av_freep(&context->buffer); - return 0; -} - -/* RAW Encoder Implementation */ -#ifdef CONFIG_RAWVIDEO_ENCODER -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; - if(!avctx->codec_tag) - avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(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, -}; -#endif // CONFIG_RAWVIDEO_ENCODER - -#ifdef CONFIG_RAWVIDEO_DECODER -AVCodec rawvideo_decoder = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(RawVideoContext), - raw_init_decoder, - NULL, - raw_close_decoder, - raw_decode, -}; -#endif // CONFIG_RAWVIDEO_DECODER diff --git a/libavcodec/raw.h b/libavcodec/raw.h new file mode 100644 index 0000000000..e600dca395 --- /dev/null +++ b/libavcodec/raw.h @@ -0,0 +1,39 @@ +/* + * Raw Video Codec + * Copyright (c) 2001 Fabrice Bellard. + * + * 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 2.1 of the License, or (at your option) any later version. + * + * 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file raw.h + * Raw Video Codec + */ + +#ifndef AVCODEC_RAW_H +#define AVCODEC_RAW_H + +#include "avcodec.h" + +typedef struct PixelFormatTag { + int pix_fmt; + unsigned int fourcc; +} PixelFormatTag; + +extern const PixelFormatTag ff_raw_pixelFormatTags[]; + +#endif /* AVCODEC_RAW_H */ diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c new file mode 100644 index 0000000000..87fa295641 --- /dev/null +++ b/libavcodec/rawdec.c @@ -0,0 +1,151 @@ +/* + * Raw Video Decoder + * Copyright (c) 2001 Fabrice Bellard. + * + * 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 2.1 of the License, or (at your option) any later version. + * + * 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file rawdec.c + * Raw Video Decoder + */ + +#include "avcodec.h" +#include "raw.h" + +typedef struct RawVideoContext { + unsigned char * buffer; /* block of memory for holding one frame */ + int length; /* number of bytes in buffer */ + AVFrame pic; ///< AVCodecContext.coded_frame +} RawVideoContext; + +static const PixelFormatTag pixelFormatBpsAVI[] = { + { PIX_FMT_PAL8, 8 }, + { PIX_FMT_RGB555, 15 }, + { PIX_FMT_RGB555, 16 }, + { PIX_FMT_BGR24, 24 }, + { PIX_FMT_RGB32, 32 }, + { -1, 0 }, +}; + +static const PixelFormatTag pixelFormatBpsMOV[] = { + /* FIXME fix swscaler to support those */ + /* http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html */ + { PIX_FMT_PAL8, 8 }, + { PIX_FMT_BGR555, 16 }, + { PIX_FMT_RGB24, 24 }, + { PIX_FMT_BGR32_1, 32 }, + { -1, 0 }, +}; + +static int findPixelFormat(const PixelFormatTag *tags, unsigned int fourcc) +{ + while (tags->pix_fmt >= 0) { + if (tags->fourcc == fourcc) + return tags->pix_fmt; + tags++; + } + return PIX_FMT_YUV420P; +} + +static int raw_init_decoder(AVCodecContext *avctx) +{ + RawVideoContext *context = avctx->priv_data; + + if (avctx->codec_tag == MKTAG('r','a','w',' ')) + avctx->pix_fmt = findPixelFormat(pixelFormatBpsMOV, avctx->bits_per_sample); + else if (avctx->codec_tag) + avctx->pix_fmt = findPixelFormat(ff_raw_pixelFormatTags, avctx->codec_tag); + else if (avctx->bits_per_sample) + avctx->pix_fmt = findPixelFormat(pixelFormatBpsAVI, avctx->bits_per_sample); + + context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); + context->buffer = av_malloc(context->length); + 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 void flip(AVCodecContext *avctx, AVPicture * picture){ + if(!avctx->codec_tag && avctx->bits_per_sample && picture->linesize[2]==0){ + picture->data[0] += picture->linesize[0] * (avctx->height-1); + picture->linesize[0] *= -1; + } +} + +static int raw_decode(AVCodecContext *avctx, + void *data, int *data_size, + uint8_t *buf, int buf_size) +{ + RawVideoContext *context = avctx->priv_data; + + AVFrame * frame = (AVFrame *) data; + AVPicture * picture = (AVPicture *) data; + + frame->interlaced_frame = avctx->coded_frame->interlaced_frame; + frame->top_field_first = avctx->coded_frame->top_field_first; + + if(buf_size < context->length - (avctx->pix_fmt==PIX_FMT_PAL8 ? 256*4 : 0)) + return -1; + + avpicture_fill(picture, buf, avctx->pix_fmt, avctx->width, avctx->height); + if(avctx->pix_fmt==PIX_FMT_PAL8 && buf_size < context->length){ + frame->data[1]= context->buffer; + } + if (avctx->palctrl && avctx->palctrl->palette_changed) { + memcpy(frame->data[1], avctx->palctrl->palette, AVPALETTE_SIZE); + avctx->palctrl->palette_changed = 0; + } + + flip(avctx, picture); + + if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2')) + { + // swap fields + unsigned char *tmp = picture->data[1]; + picture->data[1] = picture->data[2]; + picture->data[2] = tmp; + } + + *data_size = sizeof(AVPicture); + return buf_size; +} + +static int raw_close_decoder(AVCodecContext *avctx) +{ + RawVideoContext *context = avctx->priv_data; + + av_freep(&context->buffer); + return 0; +} + +AVCodec rawvideo_decoder = { + "rawvideo", + CODEC_TYPE_VIDEO, + CODEC_ID_RAWVIDEO, + sizeof(RawVideoContext), + raw_init_decoder, + NULL, + raw_close_decoder, + raw_decode, +}; diff --git a/libavcodec/rawenc.c b/libavcodec/rawenc.c new file mode 100644 index 0000000000..61608bcc32 --- /dev/null +++ b/libavcodec/rawenc.c @@ -0,0 +1,54 @@ +/* + * Raw Video Encoder + * Copyright (c) 2001 Fabrice Bellard. + * + * 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 2.1 of the License, or (at your option) any later version. + * + * 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file rawenc.c + * Raw Video Encoder + */ + +#include "avcodec.h" +#include "raw.h" + +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; + if(!avctx->codec_tag) + avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(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, +}; -- cgit v1.2.3