mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
h263parse: shuffle code to untangle h263parse and parameter parsing
This commit is contained in:
Mark Nauwelaerts
parent
daed6713db
commit
46308f8c53
5 changed files with 219 additions and 189 deletions
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@ -6,4 +6,4 @@ libgsth263parse_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS)
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libgsth263parse_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgsth263parse_la_LIBTOOLFLAGS = --tag=disable-static
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noinst_HEADERS = gsth263parse.h gstbaseparse.h
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noinst_HEADERS = gsth263parse.h h263parse.h gstbaseparse.h
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@ -179,6 +179,70 @@ out:
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return psc_pos;
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}
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static void
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gst_h263_parse_set_src_caps (GstH263Parse * h263parse, H263Params * params)
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{
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GstStructure *st;
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GstCaps *caps, *sink_caps;
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gint fr_num, fr_denom;
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g_assert (h263parse->state == PASSTHROUGH || h263parse->state == GOT_HEADER);
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caps = GST_PAD_CAPS (GST_BASE_PARSE_SINK_PAD (h263parse));
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if (caps) {
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caps = gst_caps_copy (caps);
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} else {
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caps = gst_caps_new_simple ("video/x-h263",
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"variant", G_TYPE_STRING, "itu", NULL);
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}
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gst_caps_set_simple (caps, "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
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sink_caps = GST_PAD_CAPS (GST_BASE_PARSE_SINK_PAD (h263parse));
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if (sink_caps && (st = gst_caps_get_structure (sink_caps, 0)) &&
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gst_structure_get_fraction (st, "framerate", &fr_num, &fr_denom)) {
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/* Got it in caps - nothing more to do */
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GST_DEBUG ("Sink caps override framerate from headers");
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} else {
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/* Caps didn't have the framerate - get it from params */
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gst_h263_parse_get_framerate (params, &fr_num, &fr_denom);
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}
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gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, fr_num, fr_denom,
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NULL);
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if (h263parse->state == GOT_HEADER) {
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gst_caps_set_simple (caps,
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"annex-d", G_TYPE_BOOLEAN, (params->features & H263_OPTION_UMV_MODE),
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"annex-e", G_TYPE_BOOLEAN, (params->features & H263_OPTION_SAC_MODE),
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"annex-f", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AP_MODE),
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"annex-g", G_TYPE_BOOLEAN, (params->features & H263_OPTION_PB_MODE),
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"annex-i", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AIC_MODE),
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"annex-j", G_TYPE_BOOLEAN, (params->features & H263_OPTION_DF_MODE),
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"annex-k", G_TYPE_BOOLEAN, (params->features & H263_OPTION_SS_MODE),
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"annex-m", G_TYPE_BOOLEAN, (params->type == PICTURE_IMPROVED_PB),
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"annex-n", G_TYPE_BOOLEAN, (params->features & H263_OPTION_RPS_MODE),
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"annex-q", G_TYPE_BOOLEAN, (params->features & H263_OPTION_RRU_MODE),
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"annex-r", G_TYPE_BOOLEAN, (params->features & H263_OPTION_ISD_MODE),
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"annex-s", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AIV_MODE),
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"annex-t", G_TYPE_BOOLEAN, (params->features & H263_OPTION_MQ_MODE),
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"annex-u", G_TYPE_BOOLEAN, (params->features & H263_OPTION_ERPS_MODE),
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"annex-v", G_TYPE_BOOLEAN, (params->features & H263_OPTION_DPS_MODE),
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NULL);
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h263parse->profile = gst_h263_parse_get_profile (params);
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if (h263parse->profile != -1)
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gst_caps_set_simple (caps, "profile", G_TYPE_UINT, h263parse->profile,
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NULL);
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h263parse->level = gst_h263_parse_get_level (params, h263parse->profile,
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h263parse->bitrate, fr_num, fr_denom);
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if (h263parse->level != -1)
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gst_caps_set_simple (caps, "level", G_TYPE_UINT, h263parse->level, NULL);
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}
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gst_pad_set_caps (GST_BASE_PARSE_SRC_PAD (GST_BASE_PARSE (h263parse)), caps);
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gst_caps_unref (caps);
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}
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static gboolean
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gst_h263_parse_check_valid_frame (GstBaseParse * parse, GstBuffer * buffer,
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guint * framesize, gint * skipsize)
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@ -219,9 +283,9 @@ gst_h263_parse_check_valid_frame (GstBaseParse * parse, GstBuffer * buffer,
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/* If this is the first frame, parse and set srcpad caps */
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if (h263parse->state == PARSING) {
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H263Params *params = NULL;
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GstFlowReturn res = gst_h263_parse_get_params (h263parse, buffer,
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¶ms, FALSE);
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GstFlowReturn res;
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res = gst_h263_parse_get_params (¶ms, buffer, FALSE, &h263parse->state);
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if (res != GST_FLOW_OK || h263parse->state != GOT_HEADER) {
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GST_WARNING ("Couldn't parse header - setting passthrough mode");
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gst_base_parse_set_passthrough (parse, TRUE);
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@ -262,7 +326,7 @@ gst_h263_parse_parse_frame (GstBaseParse * parse, GstBuffer * buffer)
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h263parse = GST_H263_PARSE (parse);
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res = gst_h263_parse_get_params (h263parse, buffer, ¶ms, TRUE);
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res = gst_h263_parse_get_params (¶ms, buffer, TRUE, &h263parse->state);
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if (res != GST_FLOW_OK)
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goto out;
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@ -32,17 +32,10 @@
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#include <gst/base/gstadapter.h>
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#include <gstbaseparse.h>
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#include "h263parse.h"
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G_BEGIN_DECLS
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typedef enum
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{
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PARSING = 0,
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GOT_HEADER,
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PASSTHROUGH
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} H263ParseState;
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typedef struct _H263Params H263Params;
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#define GST_TYPE_H263_PARSE \
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(gst_h263_parse_get_type())
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#define GST_H263_PARSE(obj) \
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@ -74,16 +67,5 @@ struct _GstH263ParseClass
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GstBaseParseClass parent_class;
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};
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gboolean gst_h263_parse_is_delta_unit (H263Params * params);
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GstFlowReturn gst_h263_parse_get_params (GstH263Parse * h263parse,
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GstBuffer * buffer, H263Params ** params_p, gboolean fast);
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void gst_h263_parse_get_framerate (GstCaps * caps, H263Params * params,
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gint * num, gint * denom);
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void gst_h263_parse_set_src_caps (GstH263Parse * h263parse,
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H263Params * params);
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gint gst_h263_parse_get_profile (H263Params * params);
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gint gst_h263_parse_get_level (H263Params * params, gint profile,
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guint bitrate, gint fps_num, gint fps_denom);
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G_END_DECLS
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#endif
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@ -30,99 +30,6 @@
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GST_DEBUG_CATEGORY_EXTERN (h263_parse_debug);
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#define GST_CAT_DEFAULT h263_parse_debug
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/* H263 Optional Features */
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typedef enum
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{
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/* Optional Unrestricted Motion Vector (UMV) mode (see Annex D) */
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H263_OPTION_UMV_MODE = 1 << 0,
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/* Optional Syntax-based Arithmetic Coding (SAC) mode (see Annex E) */
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H263_OPTION_SAC_MODE = 1 << 1,
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/* Optional Advanced Prediction mode (AP) (see Annex F) */
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H263_OPTION_AP_MODE = 1 << 2,
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/* Optional PB-frames mode (see Annex G) */
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H263_OPTION_PB_MODE = 1 << 3,
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/* Optional Advanced INTRA Coding (AIC) mode (see Annex I) */
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H263_OPTION_AIC_MODE = 1 << 4,
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/* Optional Deblocking Filter (DF) mode (see Annex J) */
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H263_OPTION_DF_MODE = 1 << 5,
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/* Optional Slice Structured (SS) mode (see Annex K) */
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H263_OPTION_SS_MODE = 1 << 6,
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/* Optional Reference Picture Selection (RPS) mode (see Annex N) */
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H263_OPTION_RPS_MODE = 1 << 7,
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/* Optional Independent Segment Decoding (ISD) mode (see Annex R) */
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H263_OPTION_ISD_MODE = 1 << 8,
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/* Optional Alternative INTER VLC (AIV) mode (see Annex S) */
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H263_OPTION_AIV_MODE = 1 << 9,
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/* Optional Modified Quantization (MQ) mode (see Annex T) */
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H263_OPTION_MQ_MODE = 1 << 10,
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/* Optional Reference Picture Resampling (RPR) mode (see Annex P) */
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H263_OPTION_RPR_MODE = 1 << 11,
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/* Optional Reduced-Resolution Update (RRU) mode (see Annex Q) */
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H263_OPTION_RRU_MODE = 1 << 12,
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/* Optional Enhanced Reference Picture Selection (ERPS) mode (see Annex U) */
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H263_OPTION_ERPS_MODE = 1 << 13,
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/* Optional Data Partitioned Slices (DPS) mode (see Annex V) */
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H263_OPTION_DPS_MODE = 1 << 14
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} H263OptionalFeatures;
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/* H263 Picture Types */
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typedef enum
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{
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PICTURE_I = 0, /* I-picture (INTRA) Baseline */
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PICTURE_P, /* P-picture (INTER) Baseline */
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PICTURE_IMPROVED_PB, /* Improved PB-frame (Annex M) */
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PICTURE_B, /* B-picture (Annex O) */
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PICTURE_EI, /* EI-picture (Annex O) */
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PICTURE_EP, /* EP-picture (Annex O) */
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PICTURE_RESERVED1,
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PICTURE_RESERVED2,
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PICTURE_PB /* PB-frame (See Annex G) */
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} H263PictureType;
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/* H263 Picture Format */
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typedef enum
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{
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PICTURE_FMT_FORBIDDEN_0 = 0,
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PICTURE_FMT_SUB_QCIF,
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PICTURE_FMT_QCIF,
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PICTURE_FMT_CIF,
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PICTURE_FMT_4CIF,
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PICTURE_FMT_16CIF,
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PICTURE_FMT_RESERVED1,
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PICTURE_FMT_EXTENDEDPTYPE
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} H263PictureFormat;
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typedef enum
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{
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UUI_ABSENT = 0,
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UUI_IS_1,
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UUI_IS_01,
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} H263UUI;
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struct _H263Params
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{
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guint32 temporal_ref;
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H263OptionalFeatures features;
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gboolean splitscreen;
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gboolean documentcamera;
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gboolean fullpicturefreezerelease;
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gboolean custompcfpresent;
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H263UUI uui;
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guint8 sss;
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H263PictureFormat format;
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H263PictureType type;
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guint32 width;
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guint32 height;
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guint8 parnum, pardenom;
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gint32 pcfnum, pcfdenom;
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};
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gboolean
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gst_h263_parse_is_delta_unit (H263Params * params)
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{
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@ -133,8 +40,8 @@ gst_h263_parse_is_delta_unit (H263Params * params)
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* extract a subset of the data (for now, it quits once we have the picture
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* type. */
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GstFlowReturn
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gst_h263_parse_get_params (GstH263Parse * h263parse, GstBuffer * buffer,
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H263Params ** params_p, gboolean fast)
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gst_h263_parse_get_params (H263Params ** params_p, GstBuffer * buffer,
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gboolean fast, H263ParseState * state)
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{
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static const guint8 partable[6][2] = {
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{1, 0},
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@ -538,12 +445,12 @@ gst_h263_parse_get_params (GstH263Parse * h263parse, GstBuffer * buffer,
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* have no means of specifying what sub-modes, if any, are used. */
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done:
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h263parse->state = GOT_HEADER;
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*state = GOT_HEADER;
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more:
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return GST_FLOW_OK;
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beach:
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h263parse->state = PASSTHROUGH;
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*state = PASSTHROUGH;
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return GST_FLOW_OK;
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}
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@ -752,75 +659,8 @@ gst_h263_parse_get_level (H263Params * params, gint profile,
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}
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void
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gst_h263_parse_get_framerate (GstCaps * sink_caps, H263Params * params,
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gint * num, gint * denom)
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gst_h263_parse_get_framerate (H263Params * params, gint * num, gint * denom)
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{
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GstStructure *st;
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st = gst_caps_get_structure (sink_caps, 0);
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if (gst_structure_get_fraction (st, "framerate", num, denom)) {
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/* Got it in caps - nothing more to do */
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GST_DEBUG ("Sink caps override framerate from headers");
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return;
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}
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/* Caps didn't have the framerate - get it from params */
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*num = params->pcfnum;
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*denom = params->pcfdenom;
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}
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void
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gst_h263_parse_set_src_caps (GstH263Parse * h263parse, H263Params * params)
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{
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GstCaps *caps;
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gint fr_num, fr_denom;
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g_assert (h263parse->state == PASSTHROUGH || h263parse->state == GOT_HEADER);
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caps = GST_PAD_CAPS (GST_BASE_PARSE_SINK_PAD (GST_BASE_PARSE (h263parse)));
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if (caps) {
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caps = gst_caps_copy (caps);
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} else {
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caps = gst_caps_new_simple ("video/x-h263",
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"variant", G_TYPE_STRING, "itu", NULL);
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}
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gst_caps_set_simple (caps, "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
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gst_h263_parse_get_framerate (caps, params, &fr_num, &fr_denom);
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gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, fr_num, fr_denom,
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NULL);
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if (h263parse->state == GOT_HEADER) {
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gst_caps_set_simple (caps,
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"annex-d", G_TYPE_BOOLEAN, (params->features & H263_OPTION_UMV_MODE),
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"annex-e", G_TYPE_BOOLEAN, (params->features & H263_OPTION_SAC_MODE),
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"annex-f", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AP_MODE),
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"annex-g", G_TYPE_BOOLEAN, (params->features & H263_OPTION_PB_MODE),
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"annex-i", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AIC_MODE),
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"annex-j", G_TYPE_BOOLEAN, (params->features & H263_OPTION_DF_MODE),
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"annex-k", G_TYPE_BOOLEAN, (params->features & H263_OPTION_SS_MODE),
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"annex-m", G_TYPE_BOOLEAN, (params->type == PICTURE_IMPROVED_PB),
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"annex-n", G_TYPE_BOOLEAN, (params->features & H263_OPTION_RPS_MODE),
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"annex-q", G_TYPE_BOOLEAN, (params->features & H263_OPTION_RRU_MODE),
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"annex-r", G_TYPE_BOOLEAN, (params->features & H263_OPTION_ISD_MODE),
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"annex-s", G_TYPE_BOOLEAN, (params->features & H263_OPTION_AIV_MODE),
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"annex-t", G_TYPE_BOOLEAN, (params->features & H263_OPTION_MQ_MODE),
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"annex-u", G_TYPE_BOOLEAN, (params->features & H263_OPTION_ERPS_MODE),
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"annex-v", G_TYPE_BOOLEAN, (params->features & H263_OPTION_DPS_MODE),
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NULL);
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h263parse->profile = gst_h263_parse_get_profile (params);
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if (h263parse->profile != -1)
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gst_caps_set_simple (caps, "profile", G_TYPE_UINT, h263parse->profile,
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NULL);
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h263parse->level = gst_h263_parse_get_level (params, h263parse->profile,
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h263parse->bitrate, fr_num, fr_denom);
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if (h263parse->level != -1)
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gst_caps_set_simple (caps, "level", G_TYPE_UINT, h263parse->level, NULL);
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}
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gst_pad_set_caps (GST_BASE_PARSE_SRC_PAD (GST_BASE_PARSE (h263parse)), caps);
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gst_caps_unref (caps);
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}
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144
gst/h263parse/h263parse.h
Normal file
144
gst/h263parse/h263parse.h
Normal file
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@ -0,0 +1,144 @@
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/* GStreamer H.263 Parser
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* Copyright (C) <2010> Arun Raghavan <arun.raghavan@collabora.co.uk>
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* Copyright (C) <2010> Edward Hervey <edward.hervey@collabora.co.uk>
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* Copyright (C) <2010> Collabora Multimedia
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* Copyright (C) <2010> Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
|
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_H263_PARAMS_H__
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#define __GST_H263_PARAMS_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <gstbaseparse.h>
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G_BEGIN_DECLS
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typedef enum
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{
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PARSING = 0,
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GOT_HEADER,
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PASSTHROUGH
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} H263ParseState;
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||||
/* H263 Optional Features */
|
||||
typedef enum
|
||||
{
|
||||
/* Optional Unrestricted Motion Vector (UMV) mode (see Annex D) */
|
||||
H263_OPTION_UMV_MODE = 1 << 0,
|
||||
/* Optional Syntax-based Arithmetic Coding (SAC) mode (see Annex E) */
|
||||
H263_OPTION_SAC_MODE = 1 << 1,
|
||||
/* Optional Advanced Prediction mode (AP) (see Annex F) */
|
||||
H263_OPTION_AP_MODE = 1 << 2,
|
||||
/* Optional PB-frames mode (see Annex G) */
|
||||
H263_OPTION_PB_MODE = 1 << 3,
|
||||
/* Optional Advanced INTRA Coding (AIC) mode (see Annex I) */
|
||||
H263_OPTION_AIC_MODE = 1 << 4,
|
||||
/* Optional Deblocking Filter (DF) mode (see Annex J) */
|
||||
H263_OPTION_DF_MODE = 1 << 5,
|
||||
/* Optional Slice Structured (SS) mode (see Annex K) */
|
||||
H263_OPTION_SS_MODE = 1 << 6,
|
||||
/* Optional Reference Picture Selection (RPS) mode (see Annex N) */
|
||||
H263_OPTION_RPS_MODE = 1 << 7,
|
||||
/* Optional Independent Segment Decoding (ISD) mode (see Annex R) */
|
||||
H263_OPTION_ISD_MODE = 1 << 8,
|
||||
/* Optional Alternative INTER VLC (AIV) mode (see Annex S) */
|
||||
H263_OPTION_AIV_MODE = 1 << 9,
|
||||
/* Optional Modified Quantization (MQ) mode (see Annex T) */
|
||||
H263_OPTION_MQ_MODE = 1 << 10,
|
||||
/* Optional Reference Picture Resampling (RPR) mode (see Annex P) */
|
||||
H263_OPTION_RPR_MODE = 1 << 11,
|
||||
/* Optional Reduced-Resolution Update (RRU) mode (see Annex Q) */
|
||||
H263_OPTION_RRU_MODE = 1 << 12,
|
||||
/* Optional Enhanced Reference Picture Selection (ERPS) mode (see Annex U) */
|
||||
H263_OPTION_ERPS_MODE = 1 << 13,
|
||||
/* Optional Data Partitioned Slices (DPS) mode (see Annex V) */
|
||||
H263_OPTION_DPS_MODE = 1 << 14
|
||||
} H263OptionalFeatures;
|
||||
|
||||
/* H263 Picture Types */
|
||||
typedef enum
|
||||
{
|
||||
PICTURE_I = 0, /* I-picture (INTRA) Baseline */
|
||||
PICTURE_P, /* P-picture (INTER) Baseline */
|
||||
PICTURE_IMPROVED_PB, /* Improved PB-frame (Annex M) */
|
||||
PICTURE_B, /* B-picture (Annex O) */
|
||||
PICTURE_EI, /* EI-picture (Annex O) */
|
||||
PICTURE_EP, /* EP-picture (Annex O) */
|
||||
PICTURE_RESERVED1,
|
||||
PICTURE_RESERVED2,
|
||||
PICTURE_PB /* PB-frame (See Annex G) */
|
||||
} H263PictureType;
|
||||
|
||||
/* H263 Picture Format */
|
||||
typedef enum
|
||||
{
|
||||
PICTURE_FMT_FORBIDDEN_0 = 0,
|
||||
PICTURE_FMT_SUB_QCIF,
|
||||
PICTURE_FMT_QCIF,
|
||||
PICTURE_FMT_CIF,
|
||||
PICTURE_FMT_4CIF,
|
||||
PICTURE_FMT_16CIF,
|
||||
PICTURE_FMT_RESERVED1,
|
||||
PICTURE_FMT_EXTENDEDPTYPE
|
||||
} H263PictureFormat;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
UUI_ABSENT = 0,
|
||||
UUI_IS_1,
|
||||
UUI_IS_01,
|
||||
} H263UUI;
|
||||
|
||||
|
||||
typedef struct _H263Params H263Params;
|
||||
|
||||
struct _H263Params
|
||||
{
|
||||
guint32 temporal_ref;
|
||||
|
||||
H263OptionalFeatures features;
|
||||
|
||||
gboolean splitscreen;
|
||||
gboolean documentcamera;
|
||||
gboolean fullpicturefreezerelease;
|
||||
gboolean custompcfpresent;
|
||||
H263UUI uui;
|
||||
guint8 sss;
|
||||
|
||||
H263PictureFormat format;
|
||||
|
||||
H263PictureType type;
|
||||
|
||||
guint32 width;
|
||||
guint32 height;
|
||||
guint8 parnum, pardenom;
|
||||
gint32 pcfnum, pcfdenom;
|
||||
};
|
||||
|
||||
gboolean gst_h263_parse_is_delta_unit (H263Params * params);
|
||||
GstFlowReturn gst_h263_parse_get_params (H263Params ** params_p,
|
||||
GstBuffer * buffer, gboolean fast, H263ParseState * state);
|
||||
void gst_h263_parse_get_framerate (H263Params * params,
|
||||
gint * num, gint * denom);
|
||||
gint gst_h263_parse_get_profile (H263Params * params);
|
||||
gint gst_h263_parse_get_level (H263Params * params, gint profile,
|
||||
guint bitrate, gint fps_num, gint fps_denom);
|
||||
|
||||
G_END_DECLS
|
||||
#endif
|
||||
Loading…
Reference in a new issue