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examples/twopass_encoder: Use good quality.

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This speeds up the encode significantly. Also added a comment about using
best quality to keep new developers informed.

Change-Id: I04e8154d4b2c4cae07fe7cc9a71e707f649e9ed4
This commit is contained in:
Tom Finegan 2014-09-10 11:10:29 -07:00
parent 0e66848081
commit 4e94dec352
1 changed files with 6 additions and 7 deletions
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13
examples/twopass_encoder.c
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@ -28,9 +28,8 @@
// Encoding A Frame
// ----------------
// Encoding a frame in two pass mode is identical to the simple encoder
// example, except the deadline is set to VPX_DL_BEST_QUALITY to get the
// best quality possible. VPX_DL_GOOD_QUALITY could also be used.
//
// example. To increase the quality while sacrificing encoding speed,
// VPX_DL_BEST_QUALITY can be used in place of VPX_DL_GOOD_QUALITY.
//
// Processing Statistics Packets
// -----------------------------
@ -141,13 +140,13 @@ static vpx_fixed_buf_t pass0(vpx_image_t *raw,
// Calculate frame statistics.
while (vpx_img_read(raw, infile)) {
++frame_count;
get_frame_stats(&codec, raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
get_frame_stats(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY,
&stats);
}
// Flush encoder.
while (get_frame_stats(&codec, NULL, frame_count, 1, 0,
VPX_DL_BEST_QUALITY, &stats)) {}
VPX_DL_GOOD_QUALITY, &stats)) {}
printf("Pass 0 complete. Processed %d frames.\n", frame_count);
if (vpx_codec_destroy(&codec))
@ -181,11 +180,11 @@ static void pass1(vpx_image_t *raw,
// Encode frames.
while (vpx_img_read(raw, infile)) {
++frame_count;
encode_frame(&codec, raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY, writer);
encode_frame(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY, writer);
}
// Flush encoder.
while (encode_frame(&codec, NULL, -1, 1, 0, VPX_DL_BEST_QUALITY, writer)) {}
while (encode_frame(&codec, NULL, -1, 1, 0, VPX_DL_GOOD_QUALITY, writer)) {}
printf("\n");