mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
ee77140afa
* commit 'b2bed9325dbd6be0da1d91ffed3f513c40274fd2': cosmetics: Group .name and .long_name together in codec/format declarations Conflicts: libavcodec/8svx.c libavcodec/alac.c libavcodec/cljr.c libavcodec/dnxhddec.c libavcodec/dnxhdenc.c libavcodec/dpxenc.c libavcodec/dvdec.c libavcodec/dvdsubdec.c libavcodec/dvdsubenc.c libavcodec/ffv1dec.c libavcodec/flacdec.c libavcodec/flvdec.c libavcodec/fraps.c libavcodec/frwu.c libavcodec/g726.c libavcodec/gif.c libavcodec/gifdec.c libavcodec/h261dec.c libavcodec/h263dec.c libavcodec/iff.c libavcodec/imc.c libavcodec/libopencore-amr.c libavcodec/libopenjpegdec.c libavcodec/libopenjpegenc.c libavcodec/libspeexenc.c libavcodec/libvo-amrwbenc.c libavcodec/libvorbisenc.c libavcodec/libvpxenc.c libavcodec/libx264.c libavcodec/libxavs.c libavcodec/libxvid.c libavcodec/ljpegenc.c libavcodec/mjpegbdec.c libavcodec/mjpegdec.c libavcodec/mpeg12dec.c libavcodec/mpeg4videodec.c libavcodec/msmpeg4dec.c libavcodec/pgssubdec.c libavcodec/pngdec.c libavcodec/pngenc.c libavcodec/proresdec_lgpl.c libavcodec/proresenc_kostya.c libavcodec/ra144enc.c libavcodec/rawdec.c libavcodec/rv10.c libavcodec/sp5xdec.c libavcodec/takdec.c libavcodec/tta.c libavcodec/v210dec.c libavcodec/vp6.c libavcodec/wavpack.c libavcodec/xbmenc.c libavcodec/yop.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
361 lines
13 KiB
C
361 lines
13 KiB
C
/*
|
|
* 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
|
|
* Raw Video Decoder
|
|
*/
|
|
|
|
#include "avcodec.h"
|
|
#include "raw.h"
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/buffer.h"
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
typedef struct RawVideoContext {
|
|
AVClass *av_class;
|
|
AVBufferRef *palette;
|
|
int frame_size; /* size of the frame in bytes */
|
|
int flip;
|
|
int is_2_4_bpp; // 2 or 4 bpp raw in avi/mov
|
|
int is_yuv2;
|
|
int tff;
|
|
} RawVideoContext;
|
|
|
|
static const AVOption options[]={
|
|
{"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM},
|
|
{NULL}
|
|
};
|
|
|
|
static const AVClass rawdec_class = {
|
|
.class_name = "rawdec",
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const PixelFormatTag pix_fmt_bps_avi[] = {
|
|
{ AV_PIX_FMT_MONOWHITE, 1 },
|
|
{ AV_PIX_FMT_PAL8, 2 },
|
|
{ AV_PIX_FMT_PAL8, 4 },
|
|
{ AV_PIX_FMT_PAL8, 8 },
|
|
{ AV_PIX_FMT_RGB444LE, 12 },
|
|
{ AV_PIX_FMT_RGB555LE, 15 },
|
|
{ AV_PIX_FMT_RGB555LE, 16 },
|
|
{ AV_PIX_FMT_BGR24, 24 },
|
|
{ AV_PIX_FMT_BGRA, 32 },
|
|
{ AV_PIX_FMT_NONE, 0 },
|
|
};
|
|
|
|
static const PixelFormatTag pix_fmt_bps_mov[] = {
|
|
{ AV_PIX_FMT_MONOWHITE, 1 },
|
|
{ AV_PIX_FMT_PAL8, 2 },
|
|
{ AV_PIX_FMT_PAL8, 4 },
|
|
{ AV_PIX_FMT_PAL8, 8 },
|
|
// FIXME swscale does not support 16 bit in .mov, sample 16bit.mov
|
|
// http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
|
|
{ AV_PIX_FMT_RGB555BE, 16 },
|
|
{ AV_PIX_FMT_RGB24, 24 },
|
|
{ AV_PIX_FMT_ARGB, 32 },
|
|
{ AV_PIX_FMT_MONOWHITE,33 },
|
|
{ AV_PIX_FMT_NONE, 0 },
|
|
};
|
|
|
|
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
|
|
unsigned int fourcc)
|
|
{
|
|
while (tags->pix_fmt >= 0) {
|
|
if (tags->fourcc == fourcc)
|
|
return tags->pix_fmt;
|
|
tags++;
|
|
}
|
|
return AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
#if LIBAVCODEC_VERSION_MAJOR < 55
|
|
enum AVPixelFormat ff_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
|
|
{
|
|
return avpriv_find_pix_fmt(tags, fourcc);
|
|
}
|
|
#endif
|
|
|
|
static av_cold int raw_init_decoder(AVCodecContext *avctx)
|
|
{
|
|
RawVideoContext *context = avctx->priv_data;
|
|
const AVPixFmtDescriptor *desc;
|
|
|
|
if ( avctx->codec_tag == MKTAG('r','a','w',' ')
|
|
|| avctx->codec_tag == MKTAG('N','O','1','6'))
|
|
avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_mov,
|
|
avctx->bits_per_coded_sample);
|
|
else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
|
|
avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_avi,
|
|
avctx->bits_per_coded_sample);
|
|
else if (avctx->codec_tag)
|
|
avctx->pix_fmt = avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
|
|
else if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample)
|
|
avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_avi,
|
|
avctx->bits_per_coded_sample);
|
|
|
|
desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
if (!desc) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid pixel format.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (desc->flags & (AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_PSEUDOPAL)) {
|
|
context->palette = av_buffer_alloc(AVPALETTE_SIZE);
|
|
if (!context->palette)
|
|
return AVERROR(ENOMEM);
|
|
if (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
|
|
avpriv_set_systematic_pal2((uint32_t*)context->palette->data, avctx->pix_fmt);
|
|
else
|
|
memset(context->palette->data, 0, AVPALETTE_SIZE);
|
|
}
|
|
|
|
if ((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
|
|
avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
|
|
(!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) {
|
|
context->is_2_4_bpp = 1;
|
|
context->frame_size = avpicture_get_size(avctx->pix_fmt,
|
|
FFALIGN(avctx->width, 16),
|
|
avctx->height);
|
|
} else {
|
|
context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
|
|
avctx->height);
|
|
}
|
|
|
|
if ((avctx->extradata_size >= 9 &&
|
|
!memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
|
|
avctx->codec_tag == MKTAG('c','y','u','v') ||
|
|
avctx->codec_tag == MKTAG(3, 0, 0, 0) ||
|
|
avctx->codec_tag == MKTAG('W','R','A','W'))
|
|
context->flip = 1;
|
|
|
|
if (avctx->codec_tag == AV_RL32("yuv2") &&
|
|
avctx->pix_fmt == AV_PIX_FMT_YUYV422)
|
|
context->is_yuv2 = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void flip(AVCodecContext *avctx, AVPicture *picture)
|
|
{
|
|
picture->data[0] += picture->linesize[0] * (avctx->height - 1);
|
|
picture->linesize[0] *= -1;
|
|
}
|
|
|
|
static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
|
|
AVPacket *avpkt)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
RawVideoContext *context = avctx->priv_data;
|
|
const uint8_t *buf = avpkt->data;
|
|
int buf_size = avpkt->size;
|
|
int linesize_align = 4;
|
|
int res, len;
|
|
int need_copy = !avpkt->buf || context->is_2_4_bpp || context->is_yuv2;
|
|
|
|
AVFrame *frame = data;
|
|
AVPicture *picture = data;
|
|
|
|
frame->pict_type = AV_PICTURE_TYPE_I;
|
|
frame->key_frame = 1;
|
|
frame->reordered_opaque = avctx->reordered_opaque;
|
|
frame->pkt_pts = avctx->pkt->pts;
|
|
av_frame_set_pkt_pos (frame, avctx->pkt->pos);
|
|
av_frame_set_pkt_duration(frame, avctx->pkt->duration);
|
|
|
|
if (context->tff >= 0) {
|
|
frame->interlaced_frame = 1;
|
|
frame->top_field_first = context->tff;
|
|
}
|
|
|
|
if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
|
|
return res;
|
|
|
|
if (need_copy)
|
|
frame->buf[0] = av_buffer_alloc(FFMAX(context->frame_size, buf_size));
|
|
else
|
|
frame->buf[0] = av_buffer_ref(avpkt->buf);
|
|
if (!frame->buf[0])
|
|
return AVERROR(ENOMEM);
|
|
|
|
//2bpp and 4bpp raw in avi and mov (yes this is ugly ...)
|
|
if (context->is_2_4_bpp) {
|
|
int i;
|
|
uint8_t *dst = frame->buf[0]->data;
|
|
buf_size = context->frame_size - AVPALETTE_SIZE;
|
|
if (avctx->bits_per_coded_sample == 4) {
|
|
for (i = 0; 2 * i + 1 < buf_size && i<avpkt->size; i++) {
|
|
dst[2 * i + 0] = buf[i] >> 4;
|
|
dst[2 * i + 1] = buf[i] & 15;
|
|
}
|
|
linesize_align = 8;
|
|
} else {
|
|
av_assert0(avctx->bits_per_coded_sample == 2);
|
|
for (i = 0; 4 * i + 3 < buf_size && i<avpkt->size; i++) {
|
|
dst[4 * i + 0] = buf[i] >> 6;
|
|
dst[4 * i + 1] = buf[i] >> 4 & 3;
|
|
dst[4 * i + 2] = buf[i] >> 2 & 3;
|
|
dst[4 * i + 3] = buf[i] & 3;
|
|
}
|
|
linesize_align = 16;
|
|
}
|
|
buf = dst;
|
|
} else if (need_copy) {
|
|
memcpy(frame->buf[0]->data, buf, buf_size);
|
|
buf = frame->buf[0]->data;
|
|
}
|
|
|
|
if (avctx->codec_tag == MKTAG('A', 'V', '1', 'x') ||
|
|
avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))
|
|
buf += buf_size - context->frame_size;
|
|
|
|
len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);
|
|
if (buf_size < len) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid buffer size, packet size %d < expected frame_size %d\n", buf_size, len);
|
|
av_buffer_unref(&frame->buf[0]);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if ((res = avpicture_fill(picture, buf, avctx->pix_fmt,
|
|
avctx->width, avctx->height)) < 0) {
|
|
av_buffer_unref(&frame->buf[0]);
|
|
return res;
|
|
}
|
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
|
|
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE,
|
|
NULL);
|
|
|
|
if (pal) {
|
|
av_buffer_unref(&context->palette);
|
|
context->palette = av_buffer_alloc(AVPALETTE_SIZE);
|
|
if (!context->palette) {
|
|
av_buffer_unref(&frame->buf[0]);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
memcpy(context->palette->data, pal, AVPALETTE_SIZE);
|
|
frame->palette_has_changed = 1;
|
|
}
|
|
}
|
|
|
|
if ((avctx->pix_fmt==AV_PIX_FMT_BGR24 ||
|
|
avctx->pix_fmt==AV_PIX_FMT_GRAY8 ||
|
|
avctx->pix_fmt==AV_PIX_FMT_RGB555LE ||
|
|
avctx->pix_fmt==AV_PIX_FMT_RGB555BE ||
|
|
avctx->pix_fmt==AV_PIX_FMT_RGB565LE ||
|
|
avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||
|
|
avctx->pix_fmt==AV_PIX_FMT_PAL8) &&
|
|
FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)
|
|
frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
|
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&
|
|
FFALIGN(frame->linesize[0], linesize_align) * avctx->height +
|
|
FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {
|
|
int la0 = FFALIGN(frame->linesize[0], linesize_align);
|
|
frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;
|
|
frame->linesize[0] = la0;
|
|
frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);
|
|
}
|
|
|
|
if ((avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) ||
|
|
(desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)) {
|
|
frame->buf[1] = av_buffer_ref(context->palette);
|
|
if (!frame->buf[1]) {
|
|
av_buffer_unref(&frame->buf[0]);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
frame->data[1] = frame->buf[1]->data;
|
|
}
|
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&
|
|
((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)
|
|
frame->linesize[0] = (frame->linesize[0] + 3) & ~3;
|
|
|
|
if (context->flip)
|
|
flip(avctx, picture);
|
|
|
|
if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2') ||
|
|
avctx->codec_tag == MKTAG('Y', 'V', '1', '6') ||
|
|
avctx->codec_tag == MKTAG('Y', 'V', '2', '4') ||
|
|
avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
|
|
FFSWAP(uint8_t *, picture->data[1], picture->data[2]);
|
|
|
|
if (avctx->codec_tag == AV_RL32("I420") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {
|
|
picture->data[1] = picture->data[1] + (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;
|
|
picture->data[2] = picture->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;
|
|
}
|
|
|
|
if (avctx->codec_tag == AV_RL32("yuv2") &&
|
|
avctx->pix_fmt == AV_PIX_FMT_YUYV422) {
|
|
int x, y;
|
|
uint8_t *line = picture->data[0];
|
|
for (y = 0; y < avctx->height; y++) {
|
|
for (x = 0; x < avctx->width; x++)
|
|
line[2 * x + 1] ^= 0x80;
|
|
line += picture->linesize[0];
|
|
}
|
|
}
|
|
if (avctx->codec_tag == AV_RL32("YVYU") &&
|
|
avctx->pix_fmt == AV_PIX_FMT_YUYV422) {
|
|
int x, y;
|
|
uint8_t *line = picture->data[0];
|
|
for(y = 0; y < avctx->height; y++) {
|
|
for(x = 0; x < avctx->width - 1; x += 2)
|
|
FFSWAP(uint8_t, line[2*x + 1], line[2*x + 3]);
|
|
line += picture->linesize[0];
|
|
}
|
|
}
|
|
|
|
if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
|
|
frame->interlaced_frame = 1;
|
|
if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
|
|
frame->top_field_first = 1;
|
|
}
|
|
|
|
*got_frame = 1;
|
|
return buf_size;
|
|
}
|
|
|
|
static av_cold int raw_close_decoder(AVCodecContext *avctx)
|
|
{
|
|
RawVideoContext *context = avctx->priv_data;
|
|
|
|
av_buffer_unref(&context->palette);
|
|
return 0;
|
|
}
|
|
|
|
AVCodec ff_rawvideo_decoder = {
|
|
.name = "rawvideo",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw video"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_RAWVIDEO,
|
|
.priv_data_size = sizeof(RawVideoContext),
|
|
.init = raw_init_decoder,
|
|
.close = raw_close_decoder,
|
|
.decode = raw_decode,
|
|
.priv_class = &rawdec_class,
|
|
};
|