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FFmpeg/libavcodec/fraps.c

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/*
* Fraps FPS1 decoder
* Copyright (c) 2005 Roine Gustafsson
* Copyright (c) 2006 Konstantin Shishkov
*
* 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
* Lossless Fraps 'FPS1' decoder
* @author Roine Gustafsson (roine at users sf net)
* @author Konstantin Shishkov
*
* Codec algorithm for version 0 is taken from Transcode <www.transcoding.org>
*
* Version 2 files support by Konstantin Shishkov
*/
#include "avcodec.h"
#include "get_bits.h"
#include "huffman.h"
#include "bytestream.h"
#include "bswapdsp.h"
#include "internal.h"
#include "thread.h"
#define FPS_TAG MKTAG('F', 'P', 'S', 'x')
#define VLC_BITS 11
/**
* local variable storage
*/
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typedef struct FrapsContext {
AVCodecContext *avctx;
BswapDSPContext bdsp;
uint8_t *tmpbuf;
int tmpbuf_size;
} FrapsContext;
/**
* initializes decoder
* @param avctx codec context
* @return 0 on success or negative if fails
*/
static av_cold int decode_init(AVCodecContext *avctx)
{
FrapsContext * const s = avctx->priv_data;
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s->avctx = avctx;
s->tmpbuf = NULL;
ff_bswapdsp_init(&s->bdsp);
return 0;
}
/**
* Comparator - our nodes should ascend by count
* but with preserved symbol order
*/
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static int huff_cmp(const void *va, const void *vb)
{
const Node *a = va, *b = vb;
return (a->count - b->count)*256 + a->sym - b->sym;
}
/**
* decode Fraps v2 packed plane
*/
static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
int h, const uint8_t *src, int size, int Uoff,
const int step)
{
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int i, j, ret;
GetBitContext gb;
VLC vlc;
Node nodes[512];
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for (i = 0; i < 256; i++)
nodes[i].count = bytestream_get_le32(&src);
size -= 1024;
if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, VLC_BITS,
nodes, huff_cmp,
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FF_HUFFMAN_FLAG_ZERO_COUNT)) < 0)
return ret;
/* we have built Huffman table and are ready to decode plane */
/* convert bits so they may be used by standard bitreader */
s->bdsp.bswap_buf((uint32_t *) s->tmpbuf,
(const uint32_t *) src, size >> 2);
if ((ret = init_get_bits8(&gb, s->tmpbuf, size)) < 0)
return ret;
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for (j = 0; j < h; j++) {
for (i = 0; i < w*step; i += step) {
dst[i] = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
/* lines are stored as deltas between previous lines
* and we need to add 0x80 to the first lines of chroma planes
*/
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if (j)
dst[i] += dst[i - stride];
else if (Uoff)
dst[i] += 0x80;
if (get_bits_left(&gb) < 0) {
ff_free_vlc(&vlc);
return AVERROR_INVALIDDATA;
}
}
dst += stride;
}
ff_free_vlc(&vlc);
return 0;
}
static int decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
{
FrapsContext * const s = avctx->priv_data;
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const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
Merge commit '759001c534287a96dc96d1e274665feb7059145d' * commit '759001c534287a96dc96d1e274665feb7059145d': lavc decoders: work with refcounted frames. Anton Khirnov (1): lavc decoders: work with refcounted frames. Clément Bœsch (47): lavc/ansi: reset file lavc/ansi: re-do refcounted frame changes from Anton fraps: reset file lavc/fraps: switch to refcounted frames gifdec: reset file lavc/gifdec: switch to refcounted frames dsicinav: resolve conflicts smc: resolve conflicts zmbv: resolve conflicts rpza: resolve conflicts vble: resolve conflicts xxan: resolve conflicts targa: resolve conflicts vmnc: resolve conflicts utvideodec: resolve conflicts tscc: resolve conflicts ulti: resolve conflicts ffv1dec: resolve conflicts dnxhddec: resolve conflicts v210dec: resolve conflicts vp3: resolve conflicts vcr1: resolve conflicts v210x: resolve conflicts wavpack: resolve conflicts pngdec: fix compilation roqvideodec: resolve conflicts pictordec: resolve conflicts mdec: resolve conflicts tiertexseqv: resolve conflicts smacker: resolve conflicts vb: resolve conflicts vqavideo: resolve conflicts xl: resolve conflicts tmv: resolve conflicts vmdav: resolve conflicts truemotion1: resolve conflicts truemotion2: resolve conflicts lcldec: fix compilation libcelt_dec: fix compilation qdrw: fix compilation r210dec: fix compilation rl2: fix compilation wnv1: fix compilation yop: fix compilation tiff: resolve conflicts interplayvideo: fix compilation qpeg: resolve conflicts (FIXME/TESTME). Hendrik Leppkes (33): 012v: convert to refcounted frames 8bps: fix compilation 8svx: resolve conflicts 4xm: resolve conflicts aasc: resolve conflicts bfi: fix compilation aura: fix compilation alsdec: resolve conflicts avrndec: convert to refcounted frames avuidec: convert to refcounted frames bintext: convert to refcounted frames cavsdec: resolve conflicts brender_pix: convert to refcounted frames cinepak: resolve conflicts cinepak: avoid using AVFrame struct directly in private context cljr: fix compilation cpia: convert to refcounted frames cscd: resolve conflicts iff: resolve conflicts and do proper conversion to refcounted frames 4xm: fix reference frame handling cyuv: fix compilation dxa: fix compilation eacmv: fix compilation eamad: fix compilation eatgv: fix compilation escape124: remove unused variable. escape130: convert to refcounted frames evrcdec: convert to refcounted frames exr: convert to refcounted frames mvcdec: convert to refcounted frames paf: properly free the frame data on decode close sgirle: convert to refcounted frames lavfi/moviesrc: use refcounted frames Michael Niedermayer (56): Merge commit '759001c534287a96dc96d1e274665feb7059145d' resolve conflicts in headers motion_est: resolve conflict mpeg4videodec: fix conflicts dpcm conflict fix dpx: fix conflicts indeo3: resolve confilcts kmvc: resolve conflicts kmvc: resolve conflicts h264: resolve conflicts utils: resolve conflicts rawdec: resolve conflcits mpegvideo: resolve conflicts svq1enc: resolve conflicts mpegvideo: dont clear data, fix assertion failure on fate vsynth1 with threads pthreads: resolve conflicts frame_thread_encoder: simple compilefix not yet tested snow: update to buffer refs crytsalhd: fix compile dirac: switch to new API sonic: update to new API svq1: resolve conflict, update to new API ffwavesynth: update to new buffer API g729: update to new API indeo5: fix compile j2kdec: update to new buffer API linopencore-amr: fix compile libvorbisdec: update to new API loco: fix compile paf: update to new API proresdec: update to new API vp56: update to new api / resolve conflicts xface: convert to refcounted frames xan: fix compile&fate v408: update to ref counted buffers v308: update to ref counted buffers yuv4dec: update to ref counted buffers y41p: update to ref counted frames xbm: update to refcounted frames targa_y216: update to refcounted buffers qpeg: fix fate/crash cdxl: fix fate tscc: fix reget buffer useage targa_y216dec: fix style msmpeg4: fix fate h264: ref_picture() copy fields that have been lost too update_frame_pool: use channel field h264: Put code that prevents deadlocks back mpegvideo: dont allow last == current wmalossless: fix buffer ref messup ff_alloc_picture: free tables in case of dimension mismatches h264: fix null pointer dereference and assertion failure frame_thread_encoder: update to bufrefs ec: fix used arrays snowdec: fix off by 1 error in dimensions check h264: disallow single unpaired fields as references of frames Paul B Mahol (2): lavc/vima: convert to refcounted frames sanm: convert to refcounted frames Conflicts: libavcodec/4xm.c libavcodec/8bps.c libavcodec/8svx.c libavcodec/aasc.c libavcodec/alsdec.c libavcodec/anm.c libavcodec/ansi.c libavcodec/avs.c libavcodec/bethsoftvideo.c libavcodec/bfi.c libavcodec/c93.c libavcodec/cavsdec.c libavcodec/cdgraphics.c libavcodec/cinepak.c libavcodec/cljr.c libavcodec/cscd.c libavcodec/dnxhddec.c libavcodec/dpcm.c libavcodec/dpx.c libavcodec/dsicinav.c libavcodec/dvdec.c libavcodec/dxa.c libavcodec/eacmv.c libavcodec/eamad.c libavcodec/eatgq.c libavcodec/eatgv.c libavcodec/eatqi.c libavcodec/error_resilience.c libavcodec/escape124.c libavcodec/ffv1.h libavcodec/ffv1dec.c libavcodec/flicvideo.c libavcodec/fraps.c libavcodec/frwu.c libavcodec/g723_1.c libavcodec/gifdec.c libavcodec/h264.c libavcodec/h264.h libavcodec/h264_direct.c libavcodec/h264_loopfilter.c libavcodec/h264_refs.c libavcodec/huffyuvdec.c libavcodec/idcinvideo.c libavcodec/iff.c libavcodec/indeo2.c libavcodec/indeo3.c libavcodec/internal.h libavcodec/interplayvideo.c libavcodec/ivi_common.c libavcodec/jvdec.c libavcodec/kgv1dec.c libavcodec/kmvc.c libavcodec/lagarith.c libavcodec/libopenjpegdec.c libavcodec/mdec.c libavcodec/mimic.c libavcodec/mjpegbdec.c libavcodec/mjpegdec.c libavcodec/mmvideo.c libavcodec/motion_est.c libavcodec/motionpixels.c libavcodec/mpc7.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo.h libavcodec/msrle.c libavcodec/msvideo1.c libavcodec/nuv.c libavcodec/options_table.h libavcodec/pcx.c libavcodec/pictordec.c libavcodec/pngdec.c libavcodec/pnmdec.c libavcodec/pthread.c libavcodec/qpeg.c libavcodec/qtrle.c libavcodec/r210dec.c libavcodec/rawdec.c libavcodec/roqvideodec.c libavcodec/rpza.c libavcodec/smacker.c libavcodec/smc.c libavcodec/svq1dec.c libavcodec/svq1enc.c libavcodec/targa.c libavcodec/tiertexseqv.c libavcodec/tiff.c libavcodec/tmv.c libavcodec/truemotion1.c libavcodec/truemotion2.c libavcodec/tscc.c libavcodec/ulti.c libavcodec/utils.c libavcodec/utvideodec.c libavcodec/v210dec.c libavcodec/v210x.c libavcodec/vb.c libavcodec/vble.c libavcodec/vcr1.c libavcodec/vmdav.c libavcodec/vmnc.c libavcodec/vp3.c libavcodec/vp56.c libavcodec/vp56.h libavcodec/vp6.c libavcodec/vqavideo.c libavcodec/wavpack.c libavcodec/xl.c libavcodec/xxan.c libavcodec/zmbv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-12 05:20:18 +03:00
ThreadFrame frame = { .f = data };
AVFrame * const f = data;
uint32_t header;
unsigned int version,header_size;
unsigned int x, y;
const uint32_t *buf32;
uint32_t *luma1,*luma2,*cb,*cr;
uint32_t offs[4];
int i, j, ret, is_chroma;
const int planes = 3;
uint8_t *out;
if (buf_size < 4) {
av_log(avctx, AV_LOG_ERROR, "Packet is too short\n");
return AVERROR_INVALIDDATA;
}
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header = AV_RL32(buf);
version = header & 0xff;
header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
if (version > 5) {
av_log(avctx, AV_LOG_ERROR,
"This file is encoded with Fraps version %d. " \
"This codec can only decode versions <= 5.\n", version);
return AVERROR_PATCHWELCOME;
}
buf += header_size;
if (version < 2) {
unsigned needed_size = avctx->width * avctx->height * 3;
if (version == 0) needed_size /= 2;
needed_size += header_size;
/* bit 31 means same as previous pic */
if (header & (1U<<31)) {
*got_frame = 0;
return buf_size;
}
if (buf_size != needed_size) {
av_log(avctx, AV_LOG_ERROR,
"Invalid frame length %d (should be %d)\n",
buf_size, needed_size);
return AVERROR_INVALIDDATA;
}
} else {
/* skip frame */
if (buf_size == 8) {
*got_frame = 0;
return buf_size;
}
if (AV_RL32(buf) != FPS_TAG || buf_size < planes*1024 + 24) {
av_log(avctx, AV_LOG_ERROR, "error in data stream\n");
return AVERROR_INVALIDDATA;
}
for (i = 0; i < planes; i++) {
offs[i] = AV_RL32(buf + 4 + i * 4);
if (offs[i] >= buf_size - header_size || (i && offs[i] <= offs[i - 1] + 1024)) {
av_log(avctx, AV_LOG_ERROR, "plane %i offset is out of bounds\n", i);
return AVERROR_INVALIDDATA;
}
}
offs[planes] = buf_size - header_size;
for (i = 0; i < planes; i++) {
av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size, offs[i + 1] - offs[i] - 1024);
if (!s->tmpbuf)
return AVERROR(ENOMEM);
}
}
f->pict_type = AV_PICTURE_TYPE_I;
f->key_frame = 1;
Merge commit '759001c534287a96dc96d1e274665feb7059145d' * commit '759001c534287a96dc96d1e274665feb7059145d': lavc decoders: work with refcounted frames. Anton Khirnov (1): lavc decoders: work with refcounted frames. Clément Bœsch (47): lavc/ansi: reset file lavc/ansi: re-do refcounted frame changes from Anton fraps: reset file lavc/fraps: switch to refcounted frames gifdec: reset file lavc/gifdec: switch to refcounted frames dsicinav: resolve conflicts smc: resolve conflicts zmbv: resolve conflicts rpza: resolve conflicts vble: resolve conflicts xxan: resolve conflicts targa: resolve conflicts vmnc: resolve conflicts utvideodec: resolve conflicts tscc: resolve conflicts ulti: resolve conflicts ffv1dec: resolve conflicts dnxhddec: resolve conflicts v210dec: resolve conflicts vp3: resolve conflicts vcr1: resolve conflicts v210x: resolve conflicts wavpack: resolve conflicts pngdec: fix compilation roqvideodec: resolve conflicts pictordec: resolve conflicts mdec: resolve conflicts tiertexseqv: resolve conflicts smacker: resolve conflicts vb: resolve conflicts vqavideo: resolve conflicts xl: resolve conflicts tmv: resolve conflicts vmdav: resolve conflicts truemotion1: resolve conflicts truemotion2: resolve conflicts lcldec: fix compilation libcelt_dec: fix compilation qdrw: fix compilation r210dec: fix compilation rl2: fix compilation wnv1: fix compilation yop: fix compilation tiff: resolve conflicts interplayvideo: fix compilation qpeg: resolve conflicts (FIXME/TESTME). Hendrik Leppkes (33): 012v: convert to refcounted frames 8bps: fix compilation 8svx: resolve conflicts 4xm: resolve conflicts aasc: resolve conflicts bfi: fix compilation aura: fix compilation alsdec: resolve conflicts avrndec: convert to refcounted frames avuidec: convert to refcounted frames bintext: convert to refcounted frames cavsdec: resolve conflicts brender_pix: convert to refcounted frames cinepak: resolve conflicts cinepak: avoid using AVFrame struct directly in private context cljr: fix compilation cpia: convert to refcounted frames cscd: resolve conflicts iff: resolve conflicts and do proper conversion to refcounted frames 4xm: fix reference frame handling cyuv: fix compilation dxa: fix compilation eacmv: fix compilation eamad: fix compilation eatgv: fix compilation escape124: remove unused variable. escape130: convert to refcounted frames evrcdec: convert to refcounted frames exr: convert to refcounted frames mvcdec: convert to refcounted frames paf: properly free the frame data on decode close sgirle: convert to refcounted frames lavfi/moviesrc: use refcounted frames Michael Niedermayer (56): Merge commit '759001c534287a96dc96d1e274665feb7059145d' resolve conflicts in headers motion_est: resolve conflict mpeg4videodec: fix conflicts dpcm conflict fix dpx: fix conflicts indeo3: resolve confilcts kmvc: resolve conflicts kmvc: resolve conflicts h264: resolve conflicts utils: resolve conflicts rawdec: resolve conflcits mpegvideo: resolve conflicts svq1enc: resolve conflicts mpegvideo: dont clear data, fix assertion failure on fate vsynth1 with threads pthreads: resolve conflicts frame_thread_encoder: simple compilefix not yet tested snow: update to buffer refs crytsalhd: fix compile dirac: switch to new API sonic: update to new API svq1: resolve conflict, update to new API ffwavesynth: update to new buffer API g729: update to new API indeo5: fix compile j2kdec: update to new buffer API linopencore-amr: fix compile libvorbisdec: update to new API loco: fix compile paf: update to new API proresdec: update to new API vp56: update to new api / resolve conflicts xface: convert to refcounted frames xan: fix compile&fate v408: update to ref counted buffers v308: update to ref counted buffers yuv4dec: update to ref counted buffers y41p: update to ref counted frames xbm: update to refcounted frames targa_y216: update to refcounted buffers qpeg: fix fate/crash cdxl: fix fate tscc: fix reget buffer useage targa_y216dec: fix style msmpeg4: fix fate h264: ref_picture() copy fields that have been lost too update_frame_pool: use channel field h264: Put code that prevents deadlocks back mpegvideo: dont allow last == current wmalossless: fix buffer ref messup ff_alloc_picture: free tables in case of dimension mismatches h264: fix null pointer dereference and assertion failure frame_thread_encoder: update to bufrefs ec: fix used arrays snowdec: fix off by 1 error in dimensions check h264: disallow single unpaired fields as references of frames Paul B Mahol (2): lavc/vima: convert to refcounted frames sanm: convert to refcounted frames Conflicts: libavcodec/4xm.c libavcodec/8bps.c libavcodec/8svx.c libavcodec/aasc.c libavcodec/alsdec.c libavcodec/anm.c libavcodec/ansi.c libavcodec/avs.c libavcodec/bethsoftvideo.c libavcodec/bfi.c libavcodec/c93.c libavcodec/cavsdec.c libavcodec/cdgraphics.c libavcodec/cinepak.c libavcodec/cljr.c libavcodec/cscd.c libavcodec/dnxhddec.c libavcodec/dpcm.c libavcodec/dpx.c libavcodec/dsicinav.c libavcodec/dvdec.c libavcodec/dxa.c libavcodec/eacmv.c libavcodec/eamad.c libavcodec/eatgq.c libavcodec/eatgv.c libavcodec/eatqi.c libavcodec/error_resilience.c libavcodec/escape124.c libavcodec/ffv1.h libavcodec/ffv1dec.c libavcodec/flicvideo.c libavcodec/fraps.c libavcodec/frwu.c libavcodec/g723_1.c libavcodec/gifdec.c libavcodec/h264.c libavcodec/h264.h libavcodec/h264_direct.c libavcodec/h264_loopfilter.c libavcodec/h264_refs.c libavcodec/huffyuvdec.c libavcodec/idcinvideo.c libavcodec/iff.c libavcodec/indeo2.c libavcodec/indeo3.c libavcodec/internal.h libavcodec/interplayvideo.c libavcodec/ivi_common.c libavcodec/jvdec.c libavcodec/kgv1dec.c libavcodec/kmvc.c libavcodec/lagarith.c libavcodec/libopenjpegdec.c libavcodec/mdec.c libavcodec/mimic.c libavcodec/mjpegbdec.c libavcodec/mjpegdec.c libavcodec/mmvideo.c libavcodec/motion_est.c libavcodec/motionpixels.c libavcodec/mpc7.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo.h libavcodec/msrle.c libavcodec/msvideo1.c libavcodec/nuv.c libavcodec/options_table.h libavcodec/pcx.c libavcodec/pictordec.c libavcodec/pngdec.c libavcodec/pnmdec.c libavcodec/pthread.c libavcodec/qpeg.c libavcodec/qtrle.c libavcodec/r210dec.c libavcodec/rawdec.c libavcodec/roqvideodec.c libavcodec/rpza.c libavcodec/smacker.c libavcodec/smc.c libavcodec/svq1dec.c libavcodec/svq1enc.c libavcodec/targa.c libavcodec/tiertexseqv.c libavcodec/tiff.c libavcodec/tmv.c libavcodec/truemotion1.c libavcodec/truemotion2.c libavcodec/tscc.c libavcodec/ulti.c libavcodec/utils.c libavcodec/utvideodec.c libavcodec/v210dec.c libavcodec/v210x.c libavcodec/vb.c libavcodec/vble.c libavcodec/vcr1.c libavcodec/vmdav.c libavcodec/vmnc.c libavcodec/vp3.c libavcodec/vp56.c libavcodec/vp56.h libavcodec/vp6.c libavcodec/vqavideo.c libavcodec/wavpack.c libavcodec/xl.c libavcodec/xxan.c libavcodec/zmbv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-12 05:20:18 +03:00
avctx->pix_fmt = version & 1 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
2014-03-12 13:52:40 +03:00
avctx->color_range = version & 1 ? AVCOL_RANGE_UNSPECIFIED
: AVCOL_RANGE_JPEG;
avctx->colorspace = version & 1 ? AVCOL_SPC_UNSPECIFIED : AVCOL_SPC_BT709;
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
return ret;
2012-11-17 09:06:01 +03:00
switch (version) {
case 0:
default:
/* Fraps v0 is a reordered YUV420 */
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if (((avctx->width % 8) != 0) || ((avctx->height % 2) != 0)) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame size %dx%d\n",
avctx->width, avctx->height);
return AVERROR_INVALIDDATA;
}
buf32 = (const uint32_t*)buf;
for (y = 0; y < avctx->height / 2; y++) {
luma1 = (uint32_t*)&f->data[0][ y * 2 * f->linesize[0] ];
luma2 = (uint32_t*)&f->data[0][ (y * 2 + 1) * f->linesize[0] ];
cr = (uint32_t*)&f->data[1][ y * f->linesize[1] ];
cb = (uint32_t*)&f->data[2][ y * f->linesize[2] ];
for (x = 0; x < avctx->width; x += 8) {
*luma1++ = *buf32++;
*luma1++ = *buf32++;
*luma2++ = *buf32++;
*luma2++ = *buf32++;
*cr++ = *buf32++;
*cb++ = *buf32++;
}
}
break;
case 1:
/* Fraps v1 is an upside-down BGR24 */
2012-11-17 09:06:01 +03:00
for (y = 0; y<avctx->height; y++)
memcpy(&f->data[0][(avctx->height - y - 1) * f->linesize[0]],
2012-11-17 09:06:01 +03:00
&buf[y * avctx->width * 3],
3 * avctx->width);
break;
case 2:
case 4:
/**
* Fraps v2 is Huffman-coded YUV420 planes
* Fraps v4 is virtually the same
*/
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for (i = 0; i < planes; i++) {
is_chroma = !!i;
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if ((ret = fraps2_decode_plane(s, f->data[i], f->linesize[i],
avctx->width >> is_chroma,
avctx->height >> is_chroma,
buf + offs[i], offs[i + 1] - offs[i],
is_chroma, 1)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
2012-11-17 08:57:27 +03:00
return ret;
}
}
break;
case 3:
case 5:
/* Virtually the same as version 4, but is for RGB24 */
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for (i = 0; i < planes; i++) {
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if ((ret = fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)),
-f->linesize[0], avctx->width, avctx->height,
buf + offs[i], offs[i + 1] - offs[i], 0, 3)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
2012-11-17 08:57:27 +03:00
return ret;
}
}
out = f->data[0];
// convert pseudo-YUV into real RGB
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for (j = 0; j < avctx->height; j++) {
uint8_t *line_end = out + 3*avctx->width;
while (out < line_end) {
out[0] += out[1];
out[2] += out[1];
out += 3;
}
out += f->linesize[0] - 3*avctx->width;
}
break;
}
*got_frame = 1;
return buf_size;
}
/**
* closes decoder
* @param avctx codec context
* @return 0 on success or negative if fails
*/
static av_cold int decode_end(AVCodecContext *avctx)
{
FrapsContext *s = (FrapsContext*)avctx->priv_data;
av_freep(&s->tmpbuf);
return 0;
}
AVCodec ff_fraps_decoder = {
.name = "fraps",
.long_name = NULL_IF_CONFIG_SMALL("Fraps"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_FRAPS,
.priv_data_size = sizeof(FrapsContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
};