diff options
Diffstat (limited to 'libavcodec/mss2.c')
| -rw-r--r-- | libavcodec/mss2.c | 41 |
1 files changed, 19 insertions, 22 deletions
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c index d9c04bea95..fcb50e3f09 100644 --- a/libavcodec/mss2.c +++ b/libavcodec/mss2.c @@ -1,20 +1,20 @@ /* * Microsoft Screen 2 (aka Windows Media Video V9 Screen) decoder * - * 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 */ @@ -34,7 +34,7 @@ typedef struct MSS2Context { VC1Context v; int split_position; - AVFrame last_pic; + AVFrame *last_pic; MSS12Context c; MSS2DSPContext dsp; SliceContext sc[2]; @@ -523,8 +523,8 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, return AVERROR_INVALIDDATA; avctx->pix_fmt = is_555 ? AV_PIX_FMT_RGB555 : AV_PIX_FMT_RGB24; - if (ctx->last_pic.format != avctx->pix_fmt) - av_frame_unref(&ctx->last_pic); + if (ctx->last_pic->format != avctx->pix_fmt) + av_frame_unref(ctx->last_pic); if (has_wmv9) { bytestream2_init(&gB, buf, buf_size + ARITH2_PADDING); @@ -598,25 +598,21 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, if (c->mvX < 0 || c->mvY < 0) { FFSWAP(uint8_t *, c->pal_pic, c->last_pal_pic); - if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) return ret; - } - if (ctx->last_pic.data[0]) { - av_assert0(frame->linesize[0] == ctx->last_pic.linesize[0]); - c->last_rgb_pic = ctx->last_pic.data[0] + - ctx->last_pic.linesize[0] * (avctx->height - 1); + if (ctx->last_pic->data[0]) { + av_assert0(frame->linesize[0] == ctx->last_pic->linesize[0]); + c->last_rgb_pic = ctx->last_pic->data[0] + + ctx->last_pic->linesize[0] * (avctx->height - 1); } else { av_log(avctx, AV_LOG_ERROR, "Missing keyframe\n"); return AVERROR_INVALIDDATA; } } else { - if ((ret = ff_reget_buffer(avctx, &ctx->last_pic)) < 0) { - av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); + if ((ret = ff_reget_buffer(avctx, ctx->last_pic)) < 0) return ret; - } - if ((ret = av_frame_ref(frame, &ctx->last_pic)) < 0) + if ((ret = av_frame_ref(frame, ctx->last_pic)) < 0) return ret; c->last_rgb_pic = NULL; @@ -730,8 +726,8 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, av_log(avctx, AV_LOG_WARNING, "buffer not fully consumed\n"); if (c->mvX < 0 || c->mvY < 0) { - av_frame_unref(&ctx->last_pic); - ret = av_frame_ref(&ctx->last_pic, frame); + av_frame_unref(ctx->last_pic); + ret = av_frame_ref(ctx->last_pic, frame); if (ret < 0) return ret; } @@ -806,7 +802,7 @@ static av_cold int mss2_decode_end(AVCodecContext *avctx) { MSS2Context *const ctx = avctx->priv_data; - av_frame_unref(&ctx->last_pic); + av_frame_free(&ctx->last_pic); ff_mss12_decode_end(&ctx->c); av_freep(&ctx->c.pal_pic); @@ -824,10 +820,11 @@ static av_cold int mss2_decode_init(AVCodecContext *avctx) c->avctx = avctx; if (ret = ff_mss12_decode_init(c, 1, &ctx->sc[0], &ctx->sc[1])) return ret; + ctx->last_pic = av_frame_alloc(); c->pal_stride = c->mask_stride; c->pal_pic = av_mallocz(c->pal_stride * avctx->height); c->last_pal_pic = av_mallocz(c->pal_stride * avctx->height); - if (!c->pal_pic || !c->last_pal_pic) { + if (!c->pal_pic || !c->last_pal_pic || !ctx->last_pic) { mss2_decode_end(avctx); return AVERROR(ENOMEM); } |