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codecparsers: add helper methods for h264

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Add two helper methods to convert profile
and slice types

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5908>
This commit is contained in:
Stéphane Cerveau 2023-12-20 17:03:34 +01:00
parent 0d04660c5d
commit 9c250179c6
2 changed files with 92 additions and 1 deletions
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78
subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gsth264parser.c
View file

@ -3718,3 +3718,81 @@ error:
#undef READ_CONFIG_UINT8
#undef SKIP_CONFIG_BITS
}
typedef struct
{
const gchar *name;
GstH264Profile profile;
} H264ProfileMapping;
static const H264ProfileMapping h264_profiles[] = {
{"baseline", GST_H264_PROFILE_BASELINE},
{"main", GST_H264_PROFILE_MAIN},
{"high", GST_H264_PROFILE_HIGH},
{"high-10", GST_H264_PROFILE_HIGH10},
{"high-4:2:2", GST_H264_PROFILE_HIGH_422},
{"high-4:4:4", GST_H264_PROFILE_HIGH_444},
{"multiview-high", GST_H264_PROFILE_MULTIVIEW_HIGH},
{"stereo-high", GST_H264_PROFILE_STEREO_HIGH},
{"scalable-baseline", GST_H264_PROFILE_SCALABLE_BASELINE},
{"scalable-high", GST_H264_PROFILE_SCALABLE_HIGH},
};
/**
* gst_h264_profile_from_string:
* @string: the descriptive name for #GstH264Profile
*
* Returns a #GstH264Profile for the @string.
*
* Returns: the #GstH264Profile of @string or %GST_H265_PROFILE_INVALID on error
*
* Since: 1.24
*/
GstH264Profile
gst_h264_profile_from_string (const gchar * string)
{
guint i;
if (string == NULL)
return GST_H264_PROFILE_INVALID;
for (i = 0; i < G_N_ELEMENTS (h264_profiles); i++) {
if (g_strcmp0 (string, h264_profiles[i].name) == 0) {
return h264_profiles[i].profile;
}
}
return GST_H264_PROFILE_INVALID;
}
/**
* gst_h264_slice_type_to_string:
* @slice_type: a #GstH264SliceType
*
* Returns the descriptive name for the #GstH264SliceType.
*
* Returns: (nullable): the name for @slice_type or %NULL on error
*
* Since: 1.24
*/
const gchar *
gst_h264_slice_type_to_string (GstH264SliceType slice_type)
{
switch (slice_type) {
case GST_H264_P_SLICE:
return "P";
case GST_H264_B_SLICE:
return "B";
case GST_H264_I_SLICE:
return "I";
case GST_H264_SP_SLICE:
return "SP";
case GST_H264_SI_SLICE:
return "SI";
default:
GST_ERROR ("unknown %d slice type", slice_type);
}
return NULL;
}

15
subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gsth264parser.h
View file

@ -111,7 +111,15 @@ typedef enum {
GST_H264_PROFILE_MULTIVIEW_HIGH = 118,
GST_H264_PROFILE_STEREO_HIGH = 128,
GST_H264_PROFILE_SCALABLE_BASELINE = 83,
GST_H264_PROFILE_SCALABLE_HIGH = 86
GST_H264_PROFILE_SCALABLE_HIGH = 86,
/**
* GST_H264_PROFILE_INVALID:
*
* Invalid H264 profile
*
* Since: 1.24
*/
GST_H264_PROFILE_INVALID = -1
} GstH264Profile;
/**
@ -1536,6 +1544,11 @@ GstH264ParserResult gst_h264_parser_parse_decoder_config_record (GstH264NalParse
const guint8 * data,
gsize size,
GstH264DecoderConfigRecord ** config);
GST_CODEC_PARSERS_API
GstH264Profile gst_h264_profile_from_string (const gchar * profile);
GST_CODEC_PARSERS_API
const gchar * gst_h264_slice_type_to_string (GstH264SliceType slice_type);
G_END_DECLS