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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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omxvideoenc: Add initial support for stride conversion
This commit is contained in:
Sebastian Dröge
parent
254bee9be9
commit
7350dcc8cd
1 changed files with 145 additions and 39 deletions
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@ -802,6 +802,130 @@ gst_omx_video_enc_reset (GstBaseVideoEncoder * encoder)
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return TRUE;
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}
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static gboolean
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gst_omx_video_enc_fill_buffer (GstOMXVideoEnc * self, GstBuffer * inbuf,
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GstOMXBuffer * outbuf)
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{
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GstVideoState *state = &GST_BASE_VIDEO_CODEC (self)->state;
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OMX_PARAM_PORTDEFINITIONTYPE *port_def = &self->in_port->port_def;
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gboolean ret = FALSE;
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if (state->width != port_def->format.video.nFrameWidth ||
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state->height != port_def->format.video.nFrameHeight) {
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GST_ERROR_OBJECT (self, "Width or height do not match");
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goto done;
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}
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/* Same strides and everything */
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if (GST_BUFFER_SIZE (inbuf) == outbuf->omx_buf->nAllocLen) {
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outbuf->omx_buf->nFilledLen = outbuf->omx_buf->nAllocLen;
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memcpy (outbuf->omx_buf->pBuffer + outbuf->omx_buf->nOffset,
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GST_BUFFER_DATA (inbuf), outbuf->omx_buf->nFilledLen);
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ret = TRUE;
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goto done;
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}
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/* Different strides */
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switch (state->format) {
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case GST_VIDEO_FORMAT_I420:{
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gint i, j, height;
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guint8 *src, *dest;
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gint src_stride, dest_stride;
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outbuf->omx_buf->nFilledLen = 0;
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for (i = 0; i < 3; i++) {
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if (i == 0) {
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dest_stride = port_def->format.video.nStride;
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src_stride =
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gst_video_format_get_row_stride (state->format, 0, state->width);
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} else {
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dest_stride = port_def->format.video.nStride / 2;
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src_stride =
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gst_video_format_get_row_stride (state->format, 1, state->width);
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}
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dest = outbuf->omx_buf->pBuffer + outbuf->omx_buf->nOffset;
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if (i > 0)
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dest +=
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port_def->format.video.nSliceHeight *
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port_def->format.video.nStride;
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if (i == 2)
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dest +=
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(port_def->format.video.nSliceHeight / 2) *
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(port_def->format.video.nStride / 2);
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src =
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GST_BUFFER_DATA (inbuf) +
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gst_video_format_get_component_offset (state->format, i,
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state->width, state->height);
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height =
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gst_video_format_get_component_height (state->format, i,
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state->height);
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for (j = 0; j < height; j++) {
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memcpy (dest, src, MIN (src_stride, dest_stride));
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outbuf->omx_buf->nFilledLen += dest_stride;
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src += src_stride;
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dest += dest_stride;
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}
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}
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ret = TRUE;
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break;
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}
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case GST_VIDEO_FORMAT_NV12:{
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gint i, j, height;
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guint8 *src, *dest;
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gint src_stride, dest_stride;
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outbuf->omx_buf->nFilledLen = 0;
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for (i = 0; i < 2; i++) {
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if (i == 0) {
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dest_stride = port_def->format.video.nStride;
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src_stride =
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gst_video_format_get_row_stride (state->format, 0, state->width);
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} else {
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dest_stride = port_def->format.video.nStride;
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src_stride =
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gst_video_format_get_row_stride (state->format, 1, state->width);
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}
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dest = outbuf->omx_buf->pBuffer + outbuf->omx_buf->nOffset;
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if (i == 1)
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dest +=
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port_def->format.video.nSliceHeight *
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port_def->format.video.nStride;
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src =
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GST_BUFFER_DATA (inbuf) +
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gst_video_format_get_component_offset (state->format, i,
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state->width, state->height);
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height =
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gst_video_format_get_component_height (state->format, i,
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state->height);
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for (j = 0; j < height; j++) {
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memcpy (dest, src, MIN (src_stride, dest_stride));
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outbuf->omx_buf->nFilledLen += dest_stride;
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src += src_stride;
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dest += dest_stride;
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}
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}
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ret = TRUE;
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break;
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}
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default:
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GST_ERROR_OBJECT (self, "Unsupported format");
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goto done;
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break;
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}
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done:
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return ret;
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}
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static GstFlowReturn
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gst_omx_video_enc_handle_frame (GstBaseVideoEncoder * encoder,
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GstVideoFrame * frame)
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@ -809,17 +933,15 @@ gst_omx_video_enc_handle_frame (GstBaseVideoEncoder * encoder,
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GstOMXAcquireBufferReturn acq_ret = GST_OMX_ACQUIRE_BUFFER_ERROR;
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GstOMXVideoEnc *self;
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GstOMXBuffer *buf;
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guint offset = 0;
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GstClockTime timestamp, duration, timestamp_offset = 0;
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self = GST_OMX_VIDEO_ENC (encoder);
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GST_DEBUG_OBJECT (self, "Handling frame");
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timestamp = frame->presentation_timestamp;
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duration = frame->presentation_duration;
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while (acq_ret != GST_OMX_ACQUIRE_BUFFER_OK) {
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BufferIdentification *id;
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GstClockTime timestamp, duration;
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while (offset < GST_BUFFER_SIZE (frame->sink_buffer)) {
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acq_ret = gst_omx_port_acquire_buffer (self->in_port, &buf);
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if (acq_ret == GST_OMX_ACQUIRE_BUFFER_ERROR) {
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@ -842,52 +964,30 @@ gst_omx_video_enc_handle_frame (GstBaseVideoEncoder * encoder,
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/* Copy the buffer content in chunks of size as requested
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* by the port */
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buf->omx_buf->nFilledLen =
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MIN (GST_BUFFER_SIZE (frame->sink_buffer) - offset,
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buf->omx_buf->nAllocLen - buf->omx_buf->nOffset);
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memcpy (buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
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GST_BUFFER_DATA (frame->sink_buffer) + offset,
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buf->omx_buf->nFilledLen);
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/* Interpolate timestamps if we're passing the buffer
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* in multiple chunks */
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if (offset != 0 && duration != GST_CLOCK_TIME_NONE) {
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timestamp_offset =
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gst_util_uint64_scale (offset, duration,
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GST_BUFFER_SIZE (frame->sink_buffer));
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if (!gst_omx_video_enc_fill_buffer (self, frame->sink_buffer, buf)) {
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gst_omx_port_release_buffer (self->in_port, buf);
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goto buffer_fill_error;
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}
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timestamp = frame->presentation_timestamp;
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if (timestamp != GST_CLOCK_TIME_NONE) {
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buf->omx_buf->nTimeStamp =
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gst_util_uint64_scale (timestamp + timestamp_offset,
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OMX_TICKS_PER_SECOND, GST_SECOND);
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gst_util_uint64_scale (timestamp, OMX_TICKS_PER_SECOND, GST_SECOND);
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}
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duration = frame->presentation_duration;
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if (duration != GST_CLOCK_TIME_NONE) {
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buf->omx_buf->nTickCount =
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gst_util_uint64_scale (buf->omx_buf->nFilledLen, duration,
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GST_BUFFER_SIZE (frame->sink_buffer));
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}
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if (offset == 0) {
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BufferIdentification *id = g_slice_new0 (BufferIdentification);
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id = g_slice_new0 (BufferIdentification);
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id->timestamp = buf->omx_buf->nTimeStamp;
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frame->coder_hook = id;
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frame->coder_hook_destroy_notify =
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(GDestroyNotify) buffer_identification_free;
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if (!GST_BUFFER_FLAG_IS_SET (frame->sink_buffer,
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GST_BUFFER_FLAG_DELTA_UNIT))
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buf->omx_buf->nFlags |= OMX_BUFFERFLAG_SYNCFRAME;
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id->timestamp = buf->omx_buf->nTimeStamp;
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frame->coder_hook = id;
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frame->coder_hook_destroy_notify =
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(GDestroyNotify) buffer_identification_free;
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}
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/* TODO: Set flags
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* - OMX_BUFFERFLAG_ENCODEONLY for buffers that are outside
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* the segment
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* - OMX_BUFFERFLAG_ENDOFFRAME for parsed input
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*/
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offset += buf->omx_buf->nFilledLen;
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self->started = TRUE;
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gst_omx_port_release_buffer (self->in_port, buf);
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}
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@ -914,6 +1014,12 @@ reconfigure_error:
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("Unable to reconfigure input port"));
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return GST_FLOW_ERROR;
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}
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buffer_fill_error:
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{
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GST_ELEMENT_ERROR (self, RESOURCE, WRITE, (NULL),
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("Failed to write input into the OpenMAX buffer"));
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return GST_FLOW_ERROR;
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}
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}
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static gboolean
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