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Diffstat (limited to 'src/libffmpeg/libavcodec/fraps.c')
-rw-r--r--src/libffmpeg/libavcodec/fraps.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/src/libffmpeg/libavcodec/fraps.c b/src/libffmpeg/libavcodec/fraps.c
deleted file mode 100644
index d107e47b1..000000000
--- a/src/libffmpeg/libavcodec/fraps.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Fraps FPS1 decoder
- * Copyright (c) 2005 Roine Gustafsson
- *
- * This library 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.
- *
- * This library 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-/**
- * @file fraps.c
- * Lossless Fraps 'FPS1' decoder
- * @author Roine Gustafsson <roine at users sf net>
- *
- * Only decodes version 0 and 1 files.
- * Codec algorithm for version 0 is taken from Transcode <www.transcoding.org>
- *
- * Version 2 files, which are the most commonly found Fraps files, cannot be
- * decoded yet.
- */
-
-#include "avcodec.h"
-
-#define FPS_TAG MKTAG('F', 'P', 'S', 'x')
-
-/**
- * local variable storage
- */
-typedef struct FrapsContext{
- AVCodecContext *avctx;
- AVFrame frame;
-} FrapsContext;
-
-
-/**
- * initializes decoder
- * @param avctx codec context
- * @return 0 on success or negative if fails
- */
-static int decode_init(AVCodecContext *avctx)
-{
- FrapsContext * const s = avctx->priv_data;
-
- avctx->coded_frame = (AVFrame*)&s->frame;
- avctx->has_b_frames = 0;
- avctx->pix_fmt= PIX_FMT_NONE; /* set in decode_frame */
-
- s->avctx = avctx;
- s->frame.data[0] = NULL;
-
- return 0;
-}
-
-
-/**
- * decode a frame
- * @param avctx codec context
- * @param data output AVFrame
- * @param data_size size of output data or 0 if no picture is returned
- * @param buf input data frame
- * @param buf_size size of input data frame
- * @return number of consumed bytes on success or negative if decode fails
- */
-static int decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- uint8_t *buf, int buf_size)
-{
- FrapsContext * const s = avctx->priv_data;
- AVFrame *frame = data;
- AVFrame * const f = (AVFrame*)&s->frame;
- uint32_t header;
- unsigned int version,header_size;
- unsigned int x, y;
- uint32_t *buf32;
- uint32_t *luma1,*luma2,*cb,*cr;
-
-
- header = LE_32(buf);
- version = header & 0xff;
- header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
-
- if (version > 1) {
- av_log(avctx, AV_LOG_ERROR,
- "This file is encoded with Fraps version %d. " \
- "This codec can only decode version 0 and 1.\n", version);
- return -1;
- }
-
- buf+=4;
- if (header_size == 8)
- buf+=4;
-
- switch(version) {
- case 0:
- default:
- /* Fraps v0 is a reordered YUV420 */
- avctx->pix_fmt = PIX_FMT_YUV420P;
-
- if ( (buf_size != avctx->width*avctx->height*3/2+header_size) &&
- (buf_size != header_size) ) {
- av_log(avctx, AV_LOG_ERROR,
- "Invalid frame length %d (should be %d)\n",
- buf_size, avctx->width*avctx->height*3/2+header_size);
- return -1;
- }
-
- 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 -1;
- }
-
- f->reference = 1;
- f->buffer_hints = FF_BUFFER_HINTS_VALID |
- FF_BUFFER_HINTS_PRESERVE |
- FF_BUFFER_HINTS_REUSABLE;
- if (avctx->reget_buffer(avctx, f)) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return -1;
- }
- /* bit 31 means same as previous pic */
- f->pict_type = (header & (1<<31))? FF_P_TYPE : FF_I_TYPE;
- f->key_frame = f->pict_type == FF_I_TYPE;
-
- if (f->pict_type == FF_I_TYPE) {
- buf32=(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 */
- avctx->pix_fmt = PIX_FMT_BGR24;
-
- if ( (buf_size != avctx->width*avctx->height*3+header_size) &&
- (buf_size != header_size) ) {
- av_log(avctx, AV_LOG_ERROR,
- "Invalid frame length %d (should be %d)\n",
- buf_size, avctx->width*avctx->height*3+header_size);
- return -1;
- }
-
- f->reference = 1;
- f->buffer_hints = FF_BUFFER_HINTS_VALID |
- FF_BUFFER_HINTS_PRESERVE |
- FF_BUFFER_HINTS_REUSABLE;
- if (avctx->reget_buffer(avctx, f)) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return -1;
- }
- /* bit 31 means same as previous pic */
- f->pict_type = (header & (1<<31))? FF_P_TYPE : FF_I_TYPE;
- f->key_frame = f->pict_type == FF_I_TYPE;
-
- if (f->pict_type == FF_I_TYPE) {
- for(y=0; y<avctx->height; y++)
- memcpy(&f->data[0][ (avctx->height-y)*f->linesize[0] ],
- &buf[y*avctx->width*3],
- f->linesize[0]);
- }
- break;
-
- case 2:
- /**
- * Fraps v2 sub-header description. All numbers are little-endian:
- * (this is all guesswork)
- *
- * 0: DWORD 'FPSx'
- * 4: DWORD 0x00000010 unknown, perhaps flags
- * 8: DWORD off_2 offset to plane 2
- * 12: DWORD off_3 offset to plane 3
- * 16: 256xDWORD freqtbl_1 frequency table for plane 1
- * 1040: plane_1
- * ...
- * off_2: 256xDWORD freqtbl_2 frequency table for plane 2
- * plane_2
- * ...
- * off_3: 256xDWORD freqtbl_3 frequency table for plane 3
- * plane_3
- */
- if ((BE_32(buf) != FPS_TAG)||(buf_size < (3*1024 + 8))) {
- av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
- return -1;
- }
-
- /* NOT FINISHED */
-
- break;
- }
-
- *frame = *f;
- *data_size = sizeof(AVFrame);
-
- return buf_size;
-}
-
-
-/**
- * closes decoder
- * @param avctx codec context
- * @return 0 on success or negative if fails
- */
-static int decode_end(AVCodecContext *avctx)
-{
- FrapsContext *s = (FrapsContext*)avctx->priv_data;
-
- if (s->frame.data[0])
- avctx->release_buffer(avctx, &s->frame);
-
- return 0;
-}
-
-
-AVCodec fraps_decoder = {
- "fraps",
- CODEC_TYPE_VIDEO,
- CODEC_ID_FRAPS,
- sizeof(FrapsContext),
- decode_init,
- NULL,
- decode_end,
- decode_frame,
- CODEC_CAP_DR1,
-};
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