* Quicktime Planar RGB (8BPS) Video Decoder
* Copyright (C) 2003 Roberto Togni
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
/**
- * @file 8bps.c
- * QT 8BPS Video Decoder by Roberto Togni <rtogni at bresciaonline dot it>
+ * @file
+ * QT 8BPS Video Decoder by Roberto Togni
* For more information about the 8BPS format, visit:
* http://www.pcisys.net/~melanson/codecs/
*
* Supports: PAL8 (RGB 8bpp, paletted)
- * : BGR24 (RGB 24bpp) (can also output it as RGBA32)
- * : RGBA32 (RGB 32bpp, 4th plane is probably alpha and it's ignored)
+ * : BGR24 (RGB 24bpp) (can also output it as RGB32)
+ * : RGB32 (RGB 32bpp, 4th plane is probably alpha and it's ignored)
*
*/
#include <stdio.h>
#include <stdlib.h>
-#include "common.h"
+#include "libavutil/intreadwrite.h"
#include "avcodec.h"
-static const enum PixelFormat pixfmt_rgb24[] = {PIX_FMT_BGR24, PIX_FMT_RGBA32, -1};
+static const enum PixelFormat pixfmt_rgb24[] = {PIX_FMT_BGR24, PIX_FMT_RGB32, PIX_FMT_NONE};
/*
* Decoder context
unsigned char planes;
unsigned char planemap[4];
+
+ uint32_t pal[256];
} EightBpsContext;
* Decode a frame
*
*/
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
+static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
{
- EightBpsContext * const c = (EightBpsContext *)avctx->priv_data;
- unsigned char *encoded = (unsigned char *)buf;
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ EightBpsContext * const c = avctx->priv_data;
+ const unsigned char *encoded = buf;
unsigned char *pixptr, *pixptr_end;
unsigned int height = avctx->height; // Real image height
unsigned int dlen, p, row;
- unsigned char *lp, *dp;
+ const unsigned char *lp, *dp;
unsigned char count;
unsigned int px_inc;
unsigned int planes = c->planes;
if (planes == 4)
planes--;
- px_inc = planes + (avctx->pix_fmt == PIX_FMT_RGBA32);
+ px_inc = planes + (avctx->pix_fmt == PIX_FMT_RGB32);
for (p = 0; p < planes; p++) {
/* Lines length pointer for this plane */
for(row = 0; row < height; row++) {
pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p];
pixptr_end = pixptr + c->pic.linesize[0];
- dlen = be2me_16(*(unsigned short *)(lp+row*2));
+ dlen = av_be2ne16(*(const unsigned short *)(lp+row*2));
/* Decode a row of this plane */
while(dlen > 0) {
if(dp + 1 >= buf+buf_size) return -1;
}
}
- if (avctx->palctrl) {
- memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
- if (avctx->palctrl->palette_changed) {
+ if (avctx->bits_per_coded_sample <= 8) {
+ const uint8_t *pal = av_packet_get_side_data(avpkt,
+ AV_PKT_DATA_PALETTE,
+ NULL);
+ if (pal) {
c->pic.palette_has_changed = 1;
- avctx->palctrl->palette_changed = 0;
- } else
- c->pic.palette_has_changed = 0;
+ memcpy(c->pal, pal, AVPALETTE_SIZE);
+ }
+
+ memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
}
*data_size = sizeof(AVFrame);
* Init 8BPS decoder
*
*/
-static int decode_init(AVCodecContext *avctx)
+static av_cold int decode_init(AVCodecContext *avctx)
{
- EightBpsContext * const c = (EightBpsContext *)avctx->priv_data;
+ EightBpsContext * const c = avctx->priv_data;
c->avctx = avctx;
- avctx->has_b_frames = 0;
c->pic.data[0] = NULL;
- if (avcodec_check_dimensions(avctx, avctx->width, avctx->height) < 0) {
- return 1;
- }
-
- switch (avctx->bits_per_sample) {
+ switch (avctx->bits_per_coded_sample) {
case 8:
avctx->pix_fmt = PIX_FMT_PAL8;
c->planes = 1;
c->planemap[0] = 0; // 1st plane is palette indexes
- if (avctx->palctrl == NULL) {
- av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n");
- return -1;
- }
break;
case 24:
avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24);
c->planemap[2] = 0; // 3rd plane is blue
break;
case 32:
- avctx->pix_fmt = PIX_FMT_RGBA32;
+ avctx->pix_fmt = PIX_FMT_RGB32;
c->planes = 4;
-#ifdef WORDS_BIGENDIAN
+#if HAVE_BIGENDIAN
c->planemap[0] = 1; // 1st plane is red
c->planemap[1] = 2; // 2nd plane is green
c->planemap[2] = 3; // 3rd plane is blue
#endif
break;
default:
- av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", avctx->bits_per_sample);
+ av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", avctx->bits_per_coded_sample);
return -1;
}
* Uninit 8BPS decoder
*
*/
-static int decode_end(AVCodecContext *avctx)
+static av_cold int decode_end(AVCodecContext *avctx)
{
- EightBpsContext * const c = (EightBpsContext *)avctx->priv_data;
+ EightBpsContext * const c = avctx->priv_data;
if (c->pic.data[0])
avctx->release_buffer(avctx, &c->pic);
-AVCodec eightbps_decoder = {
- "8bps",
- CODEC_TYPE_VIDEO,
- CODEC_ID_8BPS,
- sizeof(EightBpsContext),
- decode_init,
- NULL,
- decode_end,
- decode_frame,
- CODEC_CAP_DR1,
+AVCodec ff_eightbps_decoder = {
+ .name = "8bps",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_8BPS,
+ .priv_data_size = sizeof(EightBpsContext),
+ .init = decode_init,
+ .close = decode_end,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"),
};
projects / ffmpeg / blobdiff