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Merge commit 'f03f78bc1c99b1e29624418e2f7315b8a47981e9' 

* commit 'f03f78bc1c99b1e29624418e2f7315b8a47981e9':
  mpegvideo_enc: handle encoding errors with b_strategy=2

Merged-by: Clément Bœsch <u@pkh.me>
This commit is contained in:
Clément Bœsch 2017-03-21 12:57:02 +01:00
parent 70ca9b76e2 f03f78bc1c
commit b2cb9191ea
1 changed files with 18 additions and 0 deletions
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18
libavcodec/mpegvideo_enc.c
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@ -1453,6 +1453,7 @@ static int estimate_best_b_count(MpegEncContext *s)
int i, j, out_size, p_lambda, b_lambda, lambda2;
int64_t best_rd = INT64_MAX;
int best_b_count = -1;
int ret = 0;
if (!c)
return AVERROR(ENOMEM);
@ -1528,6 +1529,10 @@ static int estimate_best_b_count(MpegEncContext *s)
s->tmp_frames[0]->quality = 1 * FF_QP2LAMBDA;
out_size = encode_frame(c, s->tmp_frames[0]);
if (out_size < 0) {
ret = out_size;
goto fail;
}
//rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
@ -1539,6 +1544,10 @@ static int estimate_best_b_count(MpegEncContext *s)
s->tmp_frames[i + 1]->quality = is_p ? p_lambda : b_lambda;
out_size = encode_frame(c, s->tmp_frames[i + 1]);
if (out_size < 0) {
ret = out_size;
goto fail;
}
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
@ -1546,6 +1555,10 @@ static int estimate_best_b_count(MpegEncContext *s)
/* get the delayed frames */
while (out_size) {
out_size = encode_frame(c, NULL);
if (out_size < 0) {
ret = out_size;
goto fail;
}
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
@ -1560,6 +1573,9 @@ static int estimate_best_b_count(MpegEncContext *s)
avcodec_free_context(&c);
return best_b_count;
fail:
avcodec_free_context(&c);
return ret;
}
static int select_input_picture(MpegEncContext *s)
@ -1640,6 +1656,8 @@ static int select_input_picture(MpegEncContext *s)
}
} else if (s->b_frame_strategy == 2) {
b_frames = estimate_best_b_count(s);
if (b_frames < 0)
return b_frames;
}
emms_c();