diff options
Diffstat (limited to 'libavcodec/mxpegdec.c')
| -rw-r--r-- | libavcodec/mxpegdec.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/libavcodec/mxpegdec.c b/libavcodec/mxpegdec.c index bfaae34b76..fbd4767db8 100644 --- a/libavcodec/mxpegdec.c +++ b/libavcodec/mxpegdec.c @@ -2,20 +2,20 @@ * MxPEG decoder * Copyright (c) 2011 Anatoly Nenashev * - * 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 */ @@ -54,6 +54,7 @@ static av_cold int mxpeg_decode_end(AVCodecContext *avctx) for (i = 0; i < 2; ++i) av_frame_free(&s->picture[i]); + s->bitmask_size = 0; av_freep(&s->mxm_bitmask); av_freep(&s->completion_bitmask); @@ -105,6 +106,7 @@ static int mxpeg_decode_mxm(MXpegDecodeContext *s, } if (s->bitmask_size != bitmask_size) { + s->bitmask_size = 0; av_freep(&s->mxm_bitmask); s->mxm_bitmask = av_malloc(bitmask_size); if (!s->mxm_bitmask) { @@ -272,11 +274,9 @@ static int mxpeg_decode_frame(AVCodecContext *avctx, } /* use stored SOF data to allocate current picture */ av_frame_unref(jpg->picture_ptr); - if (ff_get_buffer(avctx, jpg->picture_ptr, - AV_GET_BUFFER_FLAG_REF) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return AVERROR(ENOMEM); - } + if ((ret = ff_get_buffer(avctx, jpg->picture_ptr, + AV_GET_BUFFER_FLAG_REF)) < 0) + return ret; jpg->picture_ptr->pict_type = AV_PICTURE_TYPE_P; jpg->picture_ptr->key_frame = 0; jpg->got_picture = 1; @@ -292,17 +292,15 @@ static int mxpeg_decode_frame(AVCodecContext *avctx, /* allocate dummy reference picture if needed */ if (!reference_ptr->data[0] && - ff_get_buffer(avctx, reference_ptr, - AV_GET_BUFFER_FLAG_REF) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return AVERROR(ENOMEM); - } + (ret = ff_get_buffer(avctx, reference_ptr, + AV_GET_BUFFER_FLAG_REF)) < 0) + return ret; - ret = ff_mjpeg_decode_sos(jpg, s->mxm_bitmask, reference_ptr); + ret = ff_mjpeg_decode_sos(jpg, s->mxm_bitmask, s->bitmask_size, reference_ptr); if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) return ret; } else { - ret = ff_mjpeg_decode_sos(jpg, NULL, NULL); + ret = ff_mjpeg_decode_sos(jpg, NULL, 0, NULL); if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) return ret; } @@ -346,4 +344,5 @@ AVCodec ff_mxpeg_decoder = { .close = mxpeg_decode_end, .decode = mxpeg_decode_frame, .capabilities = CODEC_CAP_DR1, + .max_lowres = 3, }; |