gstreamer/subprojects/gst-plugins-bad/tests/examples/codecparsers/parse-vp8.c

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/*
* vp8parser-test.c - Print IVF/VP8 headers
*
* Copyright (C) 2013-2014 Intel Corporation
* Author: Halley Zhao <halley.zhao@intel.com>
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <gst/gst.h>
#include <gst/base/gstbytereader.h>
#include <gst/codecparsers/gstvp8parser.h>
#define FOURCC_VP80 GST_MAKE_FOURCC('V','P','8','0')
#define IVF_FILE_HDR_SIZE 32
#define IVF_FRAME_HDR_SIZE 12
/* Maximum VP8 Frame Header size in bits */
#define VP8_FRAME_HDR_SIZE 10127
typedef struct _IVFFileHdr IVFFileHdr;
struct _IVFFileHdr
{
guint16 version;
guint16 length;
guint32 fourcc;
guint16 width;
guint16 height;
guint32 framerate;
guint32 time_scale;
guint32 num_frames;
};
typedef struct _IVFFrameHdr IVFFrameHdr;
struct _IVFFrameHdr
{
guint32 frame_size;
guint64 timestamp;
};
static gboolean
parse_ivf_file_header (IVFFileHdr * ivf_hdr, guint8 * data, guint size)
{
GstByteReader br;
if (size < IVF_FILE_HDR_SIZE) {
g_warning ("size is smaller than IVF file header");
goto error;
}
g_assert (data[0] == 'D' && data[1] == 'K' && data[2] == 'I'
&& data[3] == 'F');
gst_byte_reader_init (&br, data, size);
gst_byte_reader_skip (&br, 4);
if (!gst_byte_reader_get_uint16_le (&br, &ivf_hdr->version))
goto error;
g_assert (ivf_hdr->version == 0);
if (!gst_byte_reader_get_uint16_le (&br, &ivf_hdr->length))
goto error;
g_assert (ivf_hdr->length == 0x20);
if (!gst_byte_reader_get_uint32_le (&br, &ivf_hdr->fourcc))
goto error;
g_assert (ivf_hdr->fourcc == FOURCC_VP80);
if (!gst_byte_reader_get_uint16_le (&br, &ivf_hdr->width))
goto error;
if (!gst_byte_reader_get_uint16_le (&br, &ivf_hdr->height))
goto error;
if (!gst_byte_reader_get_uint32_le (&br, &ivf_hdr->framerate))
goto error;
if (!gst_byte_reader_get_uint32_le (&br, &ivf_hdr->time_scale))
goto error;
if (!gst_byte_reader_get_uint32_le (&br, &ivf_hdr->num_frames))
goto error;
g_print ("IVF File Information:\n");
g_print (" %-32s : %u\n", "version", ivf_hdr->version);
g_print (" %-32s : %u\n", "length", ivf_hdr->length);
g_print (" %-32s : '%" GST_FOURCC_FORMAT "'\n", "fourcc",
GST_FOURCC_ARGS (ivf_hdr->fourcc));
g_print (" %-32s : %u\n", "width", ivf_hdr->width);
g_print (" %-32s : %u\n", "height", ivf_hdr->height);
g_print (" %-32s : %u\n", "framerate", ivf_hdr->framerate);
g_print (" %-32s : %u\n", "time_scale", ivf_hdr->time_scale);
g_print (" %-32s : %u\n", "num_frames", ivf_hdr->num_frames);
g_print ("\n");
return TRUE;
error:
return FALSE;
}
static gboolean
parse_ivf_frame_header (IVFFrameHdr * frm_hdr, guint8 * data, guint size)
{
GstByteReader br;
if (size < IVF_FRAME_HDR_SIZE) {
g_warning ("size is smaller than IVF frame header");
goto error;
}
gst_byte_reader_init (&br, data, size);
if (!gst_byte_reader_get_uint32_le (&br, &frm_hdr->frame_size))
goto error;
if (!gst_byte_reader_get_uint64_le (&br, &frm_hdr->timestamp))
goto error;
g_print ("IVF Frame Information:\n");
g_print (" %-32s : %u\n", "size", frm_hdr->frame_size);
g_print (" %-32s : %" G_GINT64_FORMAT " \n", "timestamp",
frm_hdr->timestamp);
g_print ("\n");
return TRUE;
error:
return FALSE;
}
static void
print_segmentation (GstVp8Segmentation * seg)
{
gint i;
g_print ("+ Segmentation:\n");
g_print (" %-32s : %d\n", "segmentation_enabled", seg->segmentation_enabled);
g_print (" %-32s : %d\n", "update_mb_segmentation_map",
seg->update_mb_segmentation_map);
g_print (" %-32s : %d\n", "update_segment_feature_data",
seg->update_segment_feature_data);
if (seg->update_segment_feature_data) {
g_print (" %-32s : %d\n", "segment_feature_mode",
seg->segment_feature_mode);
g_print (" %-32s : %d", "quantizer_update_value",
seg->quantizer_update_value[0]);
for (i = 1; i < 4; i++) {
g_print (", %d", seg->quantizer_update_value[i]);
}
g_print ("\n");
g_print (" %-32s : %d", "lf_update_value", seg->lf_update_value[0]);
for (i = 1; i < 4; i++) {
g_print (", %d", seg->lf_update_value[i]);
}
g_print ("\n");
}
if (seg->update_mb_segmentation_map) {
g_print (" %-32s : %d", "segment_prob", seg->segment_prob[0]);
for (i = 1; i < 3; i++) {
g_print (", %d", seg->segment_prob[i]);
}
g_print ("\n");
}
}
static void
print_mb_lf_adjustments (GstVp8MbLfAdjustments * adj)
{
gint i;
g_print ("+ MB Loop-Filter Adjustments:\n");
g_print (" %-32s : %d\n", "loop_filter_adj_enable",
adj->loop_filter_adj_enable);
if (adj->loop_filter_adj_enable) {
g_print (" %-32s : %d\n", "mode_ref_lf_delta_update",
adj->mode_ref_lf_delta_update);
if (adj->mode_ref_lf_delta_update) {
g_print (" %-32s : %d", "ref_frame_delta", adj->ref_frame_delta[0]);
for (i = 1; i < 4; i++) {
g_print (", %d", adj->ref_frame_delta[i]);
}
g_print ("\n");
g_print (" %-32s : %d", "mb_mode_delta", adj->mb_mode_delta[0]);
for (i = 1; i < 4; i++) {
g_print (", %d", adj->mb_mode_delta[i]);
}
g_print ("\n");
}
}
}
static void
print_quant_indices (GstVp8QuantIndices * qip)
{
g_print ("+ Dequantization Indices:\n");
g_print (" %-32s : %d\n", "y_ac_qi", qip->y_ac_qi);
g_print (" %-32s : %d\n", "y_dc_delta", qip->y_dc_delta);
g_print (" %-32s : %d\n", "y2_dc_delta", qip->y2_dc_delta);
g_print (" %-32s : %d\n", "y2_ac_delta", qip->y2_ac_delta);
g_print (" %-32s : %d\n", "uv_dc_delta", qip->uv_dc_delta);
g_print (" %-32s : %d\n", "uv_ac_delta", qip->uv_ac_delta);
}
static void
print_mv_probs (GstVp8MvProbs * probs)
{
gint i, j;
g_print ("+ MV Probabilities:\n");
for (j = 0; j < 2; j++) {
g_print (" %-32s : %d", j == 0 ? "row" : "column", probs->prob[j][0]);
for (i = 1; i < 19; i++) {
g_print (", %d", probs->prob[j][i]);
}
g_print ("\n");
}
}
static void
print_mode_probs (GstVp8ModeProbs * probs)
{
gint i;
g_print ("+ Intra-mode Probabilities:\n");
g_print (" %-32s : %d", "luma", probs->y_prob[0]);
for (i = 1; i < 4; i++) {
g_print (", %d", probs->y_prob[i]);
}
g_print ("\n");
g_print (" %-32s : %d", "chroma", probs->uv_prob[0]);
for (i = 1; i < 3; i++) {
g_print (", %d", probs->uv_prob[i]);
}
g_print ("\n");
}
static void
print_frame_header (GstVp8FrameHdr * frame_hdr)
{
g_print (" %-32s : %d\n", "key_frame", frame_hdr->key_frame);
g_print (" %-32s : %d\n", "version", frame_hdr->version);
g_print (" %-32s : %d\n", "show_frame", frame_hdr->show_frame);
g_print (" %-32s : %d\n", "first_part_size", frame_hdr->first_part_size);
if (frame_hdr->key_frame) {
g_print (" %-32s : %d\n", "width", frame_hdr->width);
g_print (" %-32s : %d\n", "height", frame_hdr->height);
g_print (" %-32s : %d\n", "horizontal_scale", frame_hdr->horiz_scale_code);
g_print (" %-32s : %d\n", "vertical_scale", frame_hdr->vert_scale_code);
}
if (frame_hdr->key_frame) {
g_print (" %-32s : %d\n", "color_space", frame_hdr->color_space);
g_print (" %-32s : %d\n", "clamping_type", frame_hdr->clamping_type);
}
g_print (" %-32s : %d\n", "filter_type", frame_hdr->filter_type);
g_print (" %-32s : %d\n", "loop_filter_level", frame_hdr->loop_filter_level);
g_print (" %-32s : %d\n", "sharpness_level", frame_hdr->sharpness_level);
g_print (" %-32s : %d\n", "log2_nbr_of_dct_partitions",
frame_hdr->log2_nbr_of_dct_partitions);
if (frame_hdr->key_frame) {
g_print (" %-32s : %d\n", "refresh_entropy_probs",
frame_hdr->refresh_entropy_probs);
} else {
g_print (" %-32s : %d\n", "refresh_golden_frame",
frame_hdr->refresh_golden_frame);
g_print (" %-32s : %d\n", "refresh_alternate_frame",
frame_hdr->refresh_alternate_frame);
if (!frame_hdr->refresh_golden_frame) {
g_print (" %-32s : %d\n", "copy_buffer_to_golden",
frame_hdr->copy_buffer_to_golden);
}
if (!frame_hdr->refresh_alternate_frame) {
g_print (" %-32s : %d\n", "copy_buffer_to_alternate",
frame_hdr->copy_buffer_to_alternate);
}
g_print (" %-32s : %d\n", "sign_bias_golden", frame_hdr->sign_bias_golden);
g_print (" %-32s : %d\n", "sign_bias_alternate",
frame_hdr->sign_bias_alternate);
g_print (" %-32s : %d\n", "refresh_entropy_probs",
frame_hdr->refresh_entropy_probs);
g_print (" %-32s : %d\n", "refresh_last", frame_hdr->refresh_last);
}
g_print (" %-32s : %d\n", "mb_no_skip_coeff", frame_hdr->mb_no_skip_coeff);
if (frame_hdr->mb_no_skip_coeff) {
g_print (" %-32s : %d\n", "prob_skip_false", frame_hdr->prob_skip_false);
}
if (!frame_hdr->key_frame) {
g_print (" %-32s : %d\n", "prob_intra", frame_hdr->prob_intra);
g_print (" %-32s : %d\n", "prob_last", frame_hdr->prob_last);
g_print (" %-32s : %d\n", "prob_gf", frame_hdr->prob_gf);
}
print_quant_indices (&frame_hdr->quant_indices);
print_mv_probs (&frame_hdr->mv_probs);
print_mode_probs (&frame_hdr->mode_probs);
}
gint
main (int argc, char **argv)
{
FILE *fp = NULL;
guint8 buf[(VP8_FRAME_HDR_SIZE + 7) / 8];
IVFFileHdr ivf_file_hdr;
IVFFrameHdr ivf_frame_hdr;
GstVp8Parser parser;
GstVp8FrameHdr frame_hdr;
guint hdr_size, frame_num = 0;
g_assert (sizeof (buf) >= IVF_FILE_HDR_SIZE);
g_assert (sizeof (buf) >= IVF_FRAME_HDR_SIZE);
if (argc < 2) {
g_printerr ("Usage: %s <IVF file>\n", argv[0]);
return 1;
}
fp = fopen (argv[1], "r");
if (!fp) {
g_printerr ("failed to open IVF file (%s)\n", argv[1]);
goto error;
}
if (fread (buf, IVF_FILE_HDR_SIZE, 1, fp) != 1) {
g_printerr ("failed to read IVF header\n");
goto error;
}
if (!parse_ivf_file_header (&ivf_file_hdr, buf, IVF_FILE_HDR_SIZE)) {
g_printerr ("failed to parse IVF header\n");
goto error;
}
gst_vp8_parser_init (&parser);
while (fread (buf, IVF_FRAME_HDR_SIZE, 1, fp) == 1) {
if (!parse_ivf_frame_header (&ivf_frame_hdr, buf, IVF_FRAME_HDR_SIZE)) {
g_printerr ("fail to parse IVF frame header\n");
goto error;
}
g_print ("Frame #%d @ offset %lu\n", frame_num, (gulong) ftell (fp));
hdr_size = MIN (sizeof (buf), ivf_frame_hdr.frame_size);
if (fread (buf, hdr_size, 1, fp) != 1) {
g_printerr ("failed to read VP8 frame header\n");
goto error;
}
hdr_size = ivf_frame_hdr.frame_size - hdr_size;
if (hdr_size > 0 && fseek (fp, hdr_size, SEEK_CUR) != 0) {
g_printerr ("failed to skip frame data (%u bytes): %s\n",
ivf_frame_hdr.frame_size, strerror (errno));
goto error;
}
memset (&frame_hdr, 0, sizeof (frame_hdr));
if (gst_vp8_parser_parse_frame_header (&parser, &frame_hdr, buf,
ivf_frame_hdr.frame_size) != GST_VP8_PARSER_OK) {
g_printerr ("failed to parse frame header\n");
goto error;
}
print_frame_header (&frame_hdr);
print_segmentation (&parser.segmentation);
print_mb_lf_adjustments (&parser.mb_lf_adjust);
g_print ("\n");
frame_num++;
}
fclose (fp);
return 0;
error:
if (fp)
fclose (fp);
return 1;
}