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vc1: fix framerate calculation.

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This commit is contained in:
Gwenole Beauchesne 2011-09-30 17:16:23 +02:00
parent b865d4a740
commit a6a1653d92
1 changed files with 61 additions and 6 deletions
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67
gst-libs/gst/vaapi/gstvaapidecoder_vc1.c
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@ -238,9 +238,11 @@ decode_sequence(GstVaapiDecoderVC1 *decoder, guchar *buf, guint buf_size)
GstVaapiDecoder * const base_decoder = GST_VAAPI_DECODER(decoder);
GstVaapiDecoderVC1Private * const priv = decoder->priv;
GstVC1SeqHdr * const seq_hdr = &priv->seq_hdr;
GstVC1AdvancedSeqHdr * const adv_hdr = &seq_hdr->advanced;
GstVC1SeqStructC * const structc = &seq_hdr->struct_c;
GstVC1ParserResult result;
GstVaapiProfile profile;
guint width, height;
guint width, height, fps_n, fps_d;
result = gst_vc1_parse_sequence_header(buf, buf_size, seq_hdr);
if (result != GST_VC1_PARSER_OK) {
@ -261,11 +263,64 @@ decode_sequence(GstVaapiDecoderVC1 *decoder, guchar *buf, guint buf_size)
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
}
#if 0
priv->fps_n = seq_hdr->fps_n;
priv->fps_d = seq_hdr->fps_d;
gst_vaapi_decoder_set_framerate(base_decoder, priv->fps_n, priv->fps_d);
#endif
fps_n = 0;
fps_d = 0;
switch (seq_hdr->profile) {
case GST_VC1_PROFILE_SIMPLE:
case GST_VC1_PROFILE_MAIN:
if (structc->wmvp) {
fps_n = structc->framerate;
fps_d = 1;
}
break;
case GST_VC1_PROFILE_ADVANCED:
if (adv_hdr->display_ext && adv_hdr->framerate_flag) {
if (adv_hdr->framerateind) {
// 6.1.14.4.4 - Frame Rate Explicit
fps_n = adv_hdr->framerateexp + 1;
fps_d = 32;
}
else {
// 6.1.14.4.2 - Frame Rate Numerator
static const guint frameratenr_table[] = {
[1] = 24000,
[2] = 25000,
[3] = 30000,
[4] = 50000,
[5] = 60000,
[6] = 48000,
[7] = 72000
};
// 6.1.14.4.3 - Frame Rate Denominator
static const guint frameratedr_table[] = {
[1] = 1000,
[2] = 1001
};
if (adv_hdr->frameratenr < 1 || adv_hdr->frameratenr > 7) {
GST_DEBUG("unsupported FRAMERATENR value");
return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
}
fps_n = frameratenr_table[adv_hdr->frameratenr];
if (adv_hdr->frameratedr < 1 || adv_hdr->frameratedr > 2) {
GST_DEBUG("unsupported FRAMERATEDR value");
return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
}
fps_d = frameratedr_table[adv_hdr->frameratedr];
}
}
break;
default:
g_assert(0 && "XXX: we already validated the profile above");
break;
}
if (fps_n && fps_d) {
priv->fps_n = fps_n;
priv->fps_d = fps_d;
gst_vaapi_decoder_set_framerate(base_decoder, priv->fps_n, priv->fps_d);
}
switch (seq_hdr->profile) {
case GST_VC1_PROFILE_SIMPLE: