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encoder: h264: add provisional support for subset SPS headers.
Add provisions to write subset SPS headers to the bitstream in view to supporting the H.264 MVC specification. This assumes the libva "staging" branch is in use. Signed-off-by: Li Xiaowei <xiaowei.a.li@intel.com>
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parent
fb7ecb15e2
commit
4beee390e5
1 changed files with 111 additions and 5 deletions
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@ -260,7 +260,7 @@ bs_error:
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/* Write an SPS NAL unit */
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static gboolean
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bs_write_sps (GstBitWriter * bs,
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bs_write_sps_data (GstBitWriter * bs,
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const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
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const VAEncMiscParameterHRD * hrd_params)
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{
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@ -306,7 +306,9 @@ bs_write_sps (GstBitWriter * bs,
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/* seq_parameter_set_id */
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WRITE_UE (bs, seq_param->seq_parameter_set_id);
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if (profile == GST_VAAPI_PROFILE_H264_HIGH) {
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if (profile == GST_VAAPI_PROFILE_H264_HIGH ||
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profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
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profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) {
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/* for high profile */
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/* chroma_format_idc = 1, 4:2:0 */
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WRITE_UE (bs, seq_param->seq_fields.bits.chroma_format_idc);
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@ -465,9 +467,6 @@ bs_write_sps (GstBitWriter * bs,
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/* bs_restriction_flag */
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WRITE_UINT32 (bs, 0, 1);
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}
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/* rbsp_trailing_bits */
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bs_write_trailing_bits (bs);
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return TRUE;
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/* ERRORS */
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@ -478,6 +477,113 @@ bs_error:
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}
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}
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static gboolean
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bs_write_sps (GstBitWriter * bs,
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const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
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const VAEncMiscParameterHRD * hrd_params)
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{
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if (!bs_write_sps_data (bs, seq_param, profile, hrd_params))
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return FALSE;
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/* rbsp_trailing_bits */
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bs_write_trailing_bits (bs);
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return FALSE;
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}
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static gboolean
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bs_write_subset_sps (GstBitWriter * bs,
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const VAEncSequenceParameterBufferH264_MVC * seq_param,
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GstVaapiProfile profile, const VAEncMiscParameterHRD * hrd_params)
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{
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guint32 i, j, k;
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if (!bs_write_sps_data (bs, &seq_param->base, profile, hrd_params))
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return FALSE;
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if (profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH ||
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profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH) {
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guint32 num_views_minus1 = seq_param->num_views_minus1;
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/* bit equal to one */
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WRITE_UINT32 (bs, 1, 1);
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WRITE_UE (bs, seq_param->num_views_minus1);
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for (i = 0; i <= num_views_minus1; i++)
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WRITE_UE (bs, seq_param->view_list[i].view_id);
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for (i = 1; i <= num_views_minus1; i++) {
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guint num_anchor_refs_l0 = seq_param->view_list[i].num_anchor_refs_l0;
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WRITE_UE (bs, num_anchor_refs_l0);
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for (j = 0; j < num_anchor_refs_l0; j++)
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WRITE_UE (bs, seq_param->view_list[i].anchor_ref_l0[j]);
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guint num_anchor_refs_l1 = seq_param->view_list[i].num_anchor_refs_l1;
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WRITE_UE (bs, num_anchor_refs_l1);
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for (j = 0; j < num_anchor_refs_l1; j++)
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WRITE_UE (bs, seq_param->view_list[i].anchor_ref_l1[j]);
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}
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for (i = 1; i <= num_views_minus1; i++) {
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guint num_non_anchor_refs_l0 =
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seq_param->view_list[i].num_non_anchor_refs_l0;
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WRITE_UE (bs, num_non_anchor_refs_l0);
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for (j = 0; j < num_non_anchor_refs_l0; j++)
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WRITE_UE (bs, seq_param->view_list[i].non_anchor_ref_l0[i]);
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guint num_non_anchor_refs_l1 =
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seq_param->view_list[i].num_non_anchor_refs_l1;
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WRITE_UE (bs, num_non_anchor_refs_l1);
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for (j = 0; j < num_non_anchor_refs_l1; j++)
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WRITE_UE (bs, seq_param->view_list[i].non_anchor_ref_l1[j]);
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}
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/* num level values signalled minus1 */
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WRITE_UE (bs, seq_param->num_level_values_signalled_minus1);
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for (i = 0; i <= seq_param->num_level_values_signalled_minus1; i++) {
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struct H264SPSExtMVCLevelValue *level_value =
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&(seq_param->level_value_list[i]);
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WRITE_UINT32 (bs, level_value->level_idc, 8);
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WRITE_UE (bs, level_value->num_applicable_ops_minus1);
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for (j = 0; j <= level_value->num_applicable_ops_minus1; j++) {
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struct H264SPSExtMVCLevelValueOps *level_value_ops =
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&(level_value->level_value_ops_list[j]);
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WRITE_UINT32 (bs, level_value_ops->temporal_id, 3);
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WRITE_UE (bs, level_value_ops->num_target_views_minus1);
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for (k = 0; k <= level_value_ops->num_target_views_minus1; k++)
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WRITE_UE (bs, level_value_ops->target_view_id_list[k]);
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WRITE_UE (bs, level_value_ops->num_views_minus1);
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}
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}
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/* mvc_vui_parameters_present_flag */
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WRITE_UINT32 (bs, 0, 1);
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}
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/* additional_extension2_flag */
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WRITE_UINT32 (bs, 0, 1);
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/* rbsp_trailing_bits */
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bs_write_trailing_bits (bs);
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return TRUE;
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/* ERRORS */
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bs_error:
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{
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GST_WARNING ("failed to write subset SPS NAL unit");
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return FALSE;
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}
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return FALSE;
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}
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/* Write a PPS NAL unit */
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static gboolean
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bs_write_pps (GstBitWriter * bs,
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