diff options
Diffstat (limited to 'libavcodec/msrle.c')
-rw-r--r-- | libavcodec/msrle.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c index 06305bf276..0e8a0e539d 100644 --- a/libavcodec/msrle.c +++ b/libavcodec/msrle.c @@ -2,20 +2,20 @@ * Microsoft RLE video decoder * Copyright (C) 2003 the ffmpeg project * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -50,10 +50,14 @@ typedef struct MsrleContext { static av_cold int msrle_decode_init(AVCodecContext *avctx) { MsrleContext *s = avctx->priv_data; + int i; s->avctx = avctx; switch (avctx->bits_per_coded_sample) { + case 1: + avctx->pix_fmt = AV_PIX_FMT_MONOWHITE; + break; case 4: case 8: avctx->pix_fmt = AV_PIX_FMT_PAL8; @@ -66,8 +70,13 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx) return -1; } + avcodec_get_frame_defaults(&s->frame); s->frame.data[0] = NULL; + if (avctx->extradata_size >= AVPALETTE_SIZE) + for (i = 0; i < AVPALETTE_SIZE/4; i++) + s->pal[i] = 0xFF<<24 | AV_RL32(avctx->extradata+4*i); + return 0; } @@ -83,28 +92,27 @@ static int msrle_decode_frame(AVCodecContext *avctx, s->buf = buf; s->size = buf_size; - s->frame.reference = 1; + s->frame.reference = 3; s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE; if (avctx->reget_buffer(avctx, &s->frame)) { av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); return -1; } - if (avctx->bits_per_coded_sample <= 8) { + if (avctx->bits_per_coded_sample > 1 && avctx->bits_per_coded_sample <= 8) { const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL); if (pal) { s->frame.palette_has_changed = 1; memcpy(s->pal, pal, AVPALETTE_SIZE); } - /* make the palette available */ memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE); } /* FIXME how to correctly detect RLE ??? */ if (avctx->height * istride == avpkt->size) { /* assume uncompressed */ - int linesize = avctx->width * avctx->bits_per_coded_sample / 8; + int linesize = (avctx->width * avctx->bits_per_coded_sample + 7) / 8; uint8_t *ptr = s->frame.data[0]; uint8_t *buf = avpkt->data + (avctx->height-1)*istride; int i, j; |