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video: Add gst_video_decoder_set_interlaced_output_state()

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Add a variant of gst_video_decoder_set_output_state() that allows the user
to pass an interlacing mode as well. This is needed to ensure that
gst_video_info_set_interlaced_format() is used instead so that
GstVideoInfo.size is correctly initialized.

https://bugzilla.gnome.org/show_bug.cgi?id=796106
This commit is contained in:
Zeeshan Ali 2018-07-06 15:48:35 +02:00 committed by Nicolas Dufresne
parent 4879983253
commit be6c8400b0
2 changed files with 35 additions and 4 deletions
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34
gst-libs/gst/video/gstvideodecoder.c
View file

@ -619,15 +619,16 @@ parse_fail:
}
static GstVideoCodecState *
_new_output_state (GstVideoFormat fmt, guint width, guint height,
GstVideoCodecState * reference)
_new_output_state (GstVideoFormat fmt, GstVideoInterlaceMode mode, guint width,
guint height, GstVideoCodecState * reference)
{
GstVideoCodecState *state;
state = g_slice_new0 (GstVideoCodecState);
state->ref_count = 1;
gst_video_info_init (&state->info);
if (!gst_video_info_set_format (&state->info, fmt, width, height)) {
if (!gst_video_info_set_interlaced_format (&state->info, fmt, mode, width,
height)) {
g_slice_free (GstVideoCodecState, state);
return NULL;
}
@ -3485,6 +3486,31 @@ GstVideoCodecState *
gst_video_decoder_set_output_state (GstVideoDecoder * decoder,
GstVideoFormat fmt, guint width, guint height,
GstVideoCodecState * reference)
{
return gst_video_decoder_set_interlaced_output_state (decoder, fmt,
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE, width, height, reference);
}
/**
* gst_video_decoder_set_interlaced_output_state:
* @decoder: a #GstVideoDecoder
* @fmt: a #GstVideoFormat
* @width: The width in pixels
* @height: The height in pixels
* @mode: A #GstVideoInterlaceMode
* @reference: (allow-none) (transfer none): An optional reference #GstVideoCodecState
*
* Same as #gst_video_decoder_set_output_state() but also allows you to also set
* the interlacing mode.
*
* Returns: (transfer full): the newly configured output state.
*
* Since: 1.16.
*/
GstVideoCodecState *
gst_video_decoder_set_interlaced_output_state (GstVideoDecoder * decoder,
GstVideoFormat fmt, GstVideoInterlaceMode mode, guint width, guint height,
GstVideoCodecState * reference)
{
GstVideoDecoderPrivate *priv = decoder->priv;
GstVideoCodecState *state;
@ -3493,7 +3519,7 @@ gst_video_decoder_set_output_state (GstVideoDecoder * decoder,
fmt, width, height, reference);
/* Create the new output state */
state = _new_output_state (fmt, width, height, reference);
state = _new_output_state (fmt, mode, width, height, reference);
if (!state)
return NULL;

5
gst-libs/gst/video/gstvideodecoder.h
View file

@ -433,6 +433,11 @@ GstVideoCodecState *gst_video_decoder_set_output_state (GstVideoDecoder *decoder
GstVideoFormat fmt, guint width, guint height,
GstVideoCodecState *reference);
GST_VIDEO_API
GstVideoCodecState *gst_video_decoder_set_interlaced_output_state (GstVideoDecoder *decoder,
GstVideoFormat fmt, GstVideoInterlaceMode mode,
guint width, guint height, GstVideoCodecState *reference);
GST_VIDEO_API
GstVideoCodecState *gst_video_decoder_get_output_state (GstVideoDecoder *decoder);