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avcodec/rawdec: Support CODEC_CAP_PARAM_CHANGE 

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-09-02 05:15:30 +02:00
parent 502fc3b3d4
commit 1587989518
1 changed files with 16 additions and 14 deletions
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30
libavcodec/rawdec.c
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@ -98,19 +98,6 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
memset(context->palette->data, 0, AVPALETTE_SIZE);
}
if ((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
(!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) {
context->is_2_4_bpp = 1;
context->frame_size = avpicture_get_size(avctx->pix_fmt,
FFALIGN(avctx->width, 16),
avctx->height);
} else {
context->is_lt_16bpp = av_get_bits_per_pixel(desc) == 16 && avctx->bits_per_coded_sample && avctx->bits_per_coded_sample < 16;
context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
avctx->height);
}
if ((avctx->extradata_size >= 9 &&
!memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
avctx->codec_tag == MKTAG('c','y','u','v') ||
@ -168,11 +155,25 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
int buf_size = avpkt->size;
int linesize_align = 4;
int res, len;
int need_copy = !avpkt->buf || context->is_2_4_bpp || context->is_yuv2 || context->is_lt_16bpp;
int need_copy;
AVFrame *frame = data;
AVPicture *picture = data;
if ((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
(!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) {
context->is_2_4_bpp = 1;
context->frame_size = avpicture_get_size(avctx->pix_fmt,
FFALIGN(avctx->width, 16),
avctx->height);
} else {
context->is_lt_16bpp = av_get_bits_per_pixel(desc) == 16 && avctx->bits_per_coded_sample && avctx->bits_per_coded_sample < 16;
context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
avctx->height);
}
need_copy = !avpkt->buf || context->is_2_4_bpp || context->is_yuv2 || context->is_lt_16bpp;
frame->pict_type = AV_PICTURE_TYPE_I;
frame->key_frame = 1;
@ -368,4 +369,5 @@ AVCodec ff_rawvideo_decoder = {
.close = raw_close_decoder,
.decode = raw_decode,
.priv_class = &rawdec_class,
.capabilities = CODEC_CAP_PARAM_CHANGE,
};