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openh264enc: We always get a single frame as output, not a NAL

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No need to accumulate NALs.
This commit is contained in:
Sebastian Dröge 2014-10-02 14:36:45 +03:00
parent 70d4e6b740
commit 8aedcc6bde
1 changed files with 23 additions and 21 deletions
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44
ext/openh264/gstopenh264enc.cpp
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@ -30,6 +30,7 @@
#include "gstopenh264enc.h"
#include <gst/gst.h>
#include <gst/base/base.h>
#include <gst/video/video.h>
#include <gst/video/gstvideoencoder.h>
#include <string.h>
@ -568,8 +569,6 @@ static GstFlowReturn gst_openh264enc_handle_frame(GstVideoEncoder *encoder, GstV
gboolean force_keyframe;
gint ret;
SFrameBSInfo frame_info;
guchar* tmpbuf;
GstMemory *mem;
gfloat fps;
GstVideoEncoder *base_encoder = GST_VIDEO_ENCODER(openh264enc);
@ -653,6 +652,8 @@ static GstFlowReturn gst_openh264enc_handle_frame(GstVideoEncoder *encoder, GstV
gint nal_sps_length, nal_pps_length, idr_length, tmp_buf_length;
if (videoFrameTypeIDR == frame_info.eFrameType) {
GstMapInfo map;
/* sps */
nal_sps_data = frame_info.sLayerInfo[0].pBsBuf + 4;
nal_sps_length = frame_info.sLayerInfo[0].pNalLengthInByte[0] - 4;
@ -664,35 +665,36 @@ static GstFlowReturn gst_openh264enc_handle_frame(GstVideoEncoder *encoder, GstV
idr_length = bs_info->pNalLengthInByte[0] - 4;
tmp_buf_length = nal_sps_length + 2 + nal_pps_length + 2 + idr_length + 2;
tmpbuf = (guchar *)g_malloc(tmp_buf_length);
frame->output_buffer = gst_video_encoder_allocate_output_buffer (encoder, tmp_buf_length);
gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE);
GST_WRITE_UINT16_BE(tmpbuf, nal_sps_length);
memcpy(tmpbuf + 2, nal_sps_data, nal_sps_length);
GST_WRITE_UINT16_BE(map.data, nal_sps_length);
memcpy(map.data + 2, nal_sps_data, nal_sps_length);
GST_WRITE_UINT16_BE(tmpbuf + nal_sps_length + 2, nal_pps_length);
memcpy(tmpbuf + nal_sps_length + 2 + 2, nal_pps_data, nal_pps_length);
GST_WRITE_UINT16_BE(map.data + nal_sps_length + 2, nal_pps_length);
memcpy(map.data + nal_sps_length + 2 + 2, nal_pps_data, nal_pps_length);
GST_WRITE_UINT16_BE(tmpbuf + nal_sps_length + 2 + nal_pps_length + 2 , idr_length);
memcpy(tmpbuf + nal_sps_length + 2 + nal_pps_length + 2 + 2, bs_info->pBsBuf + 4, idr_length);
GST_WRITE_UINT16_BE(map.data + nal_sps_length + 2 + nal_pps_length + 2 , idr_length);
memcpy(map.data + nal_sps_length + 2 + nal_pps_length + 2 + 2, bs_info->pBsBuf + 4, idr_length);
gst_buffer_unmap (frame->output_buffer, &map);
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT(frame);
} else {
GstMapInfo map;
tmp_buf_length = nal_size + 2;
tmpbuf = (guchar *)g_malloc(tmp_buf_length);
GST_WRITE_UINT16_BE(tmpbuf, nal_size);
memcpy(tmpbuf + 2, bs_info->pBsBuf + 4, nal_size);
frame->output_buffer = gst_video_encoder_allocate_output_buffer (encoder, tmp_buf_length);
gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE);
GST_WRITE_UINT16_BE(map.data, nal_size);
memcpy(map.data + 2, bs_info->pBsBuf + 4, nal_size);
gst_buffer_unmap (frame->output_buffer, &map);
GST_VIDEO_CODEC_FRAME_UNSET_SYNC_POINT(frame);
}
if (frame->output_buffer) {
mem = gst_memory_new_wrapped(GST_MEMORY_FLAG_READONLY, tmpbuf, tmp_buf_length, 0, tmp_buf_length, tmpbuf, g_free);
gst_buffer_append_memory(frame->output_buffer, mem);
} else {
frame->output_buffer = gst_buffer_new_wrapped(tmpbuf, tmp_buf_length);
}
delete src_pic;
GST_LOG_OBJECT(openh264enc, "openh264 picture %scoded OK!", (ret != cmResultSuccess) ? "NOT " : "");
gst_video_frame_unmap(&video_frame);