gstreamer/subprojects/gst-plugins-bad/sys/androidmedia/magicleap/gstamc-codec-ml.c

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2018-11-19 18:40:35 +00:00
/*
* Copyright (C) 2018 Collabora Ltd.
* Author: Xavier Claessens <xavier.claessens@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstamc-internal-ml.h"
#include "gstamc-surfacetexture-ml.h"
#include "../gstamc-codec.h"
#include "../gstamc-constants.h"
#include <ml_media_codec.h>
struct _GstAmcCodec
{
MLHandle handle;
GstAmcSurfaceTexture *surface_texture;
};
gboolean
gst_amc_codec_static_init (void)
{
return TRUE;
}
void
gst_amc_buffer_free (GstAmcBuffer * buffer)
{
g_free (buffer);
}
gboolean
gst_amc_buffer_set_position_and_limit (GstAmcBuffer * buffer, GError ** err,
gint position, gint limit)
{
/* FIXME: Do we need to do something?
buffer->data = buffer->data + position;
buffer->size = limit;
*/
return TRUE;
}
GstAmcCodec *
gst_amc_codec_new (const gchar * name, gboolean is_encoder, GError ** err)
{
GstAmcCodec *codec = NULL;
MLResult result;
MLMediaCodecType type;
g_return_val_if_fail (name != NULL, NULL);
codec = g_slice_new0 (GstAmcCodec);
codec->handle = ML_INVALID_HANDLE;
type = is_encoder ? MLMediaCodecType_Encoder : MLMediaCodecType_Decoder;
result =
MLMediaCodecCreateCodec (MLMediaCodecCreation_ByName, type, name,
&codec->handle);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to create codec by name %s: %d", name, result);
gst_amc_codec_free (codec);
return NULL;
}
return codec;
}
void
gst_amc_codec_free (GstAmcCodec * codec)
{
g_return_if_fail (codec != NULL);
if (codec->handle != ML_INVALID_HANDLE)
MLMediaCodecDestroy (codec->handle);
g_clear_object (&codec->surface_texture);
g_slice_free (GstAmcCodec, codec);
}
gboolean
gst_amc_codec_configure (GstAmcCodec * codec, GstAmcFormat * format,
GstAmcSurfaceTexture * surface_texture, GError ** err)
{
MLResult result;
MLHandle surface_handle = ML_INVALID_HANDLE;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (format != NULL, FALSE);
g_return_val_if_fail (surface_texture == NULL
|| GST_IS_AMC_SURFACE_TEXTURE_ML (surface_texture), FALSE);
g_set_object (&codec->surface_texture, surface_texture);
if (surface_texture != NULL)
surface_handle =
gst_amc_surface_texture_ml_get_handle ((GstAmcSurfaceTextureML *)
surface_texture);
result = MLMediaCodecConfigureWithSurface (codec->handle,
gst_amc_format_get_handle (format), surface_handle, 0);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to configure codec %d", result);
return FALSE;
}
return TRUE;
}
GstAmcFormat *
gst_amc_codec_get_output_format (GstAmcCodec * codec, GError ** err)
{
MLHandle format_handle;
MLResult result;
g_return_val_if_fail (codec != NULL, NULL);
result = MLMediaCodecGetOutputFormat (codec->handle, &format_handle);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to get output format %d", result);
return NULL;
}
return gst_amc_format_new_handle (format_handle);
}
gboolean
gst_amc_codec_start (GstAmcCodec * codec, GError ** err)
{
MLResult result;
g_return_val_if_fail (codec != NULL, FALSE);
result = MLMediaCodecStart (codec->handle);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to start codec %d", result);
return FALSE;
}
return TRUE;
}
gboolean
gst_amc_codec_stop (GstAmcCodec * codec, GError ** err)
{
MLResult result;
g_return_val_if_fail (codec != NULL, FALSE);
result = MLMediaCodecStop (codec->handle);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to stop codec %d", result);
return FALSE;
}
return TRUE;
}
gboolean
gst_amc_codec_flush (GstAmcCodec * codec, GError ** err)
{
MLResult result;
g_return_val_if_fail (codec != NULL, FALSE);
result = MLMediaCodecFlush (codec->handle);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to flush codec %d", result);
return FALSE;
}
return TRUE;
}
gboolean
gst_amc_codec_request_key_frame (GstAmcCodec * codec, GError ** err)
{
/* If MagicLeap adds an API for requesting a keyframe, call it here */
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Keyframe requests are not available on MagicLeap");
return FALSE;
}
gboolean
gst_amc_codec_set_dynamic_bitrate (GstAmcCodec * codec, GError ** err,
gint bitrate)
{
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Dynamic bitrate control isn't available on MagicLeap");
return FALSE;
}
gboolean
gst_amc_codec_have_dynamic_bitrate ()
{
/* If MagicLeap ever provides an API for scaling bitrate, change this to TRUE */
return FALSE;
}
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gboolean
gst_amc_codec_release (GstAmcCodec * codec, GError ** err)
{
g_return_val_if_fail (codec != NULL, FALSE);
return TRUE;
}
GstAmcBuffer *
gst_amc_codec_get_output_buffer (GstAmcCodec * codec, gint index, GError ** err)
{
MLResult result;
GstAmcBuffer *ret;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (index >= 0, NULL);
ret = g_new0 (GstAmcBuffer, 1);
/* When configured with a surface, getting the buffer pointer makes no sense,
* but on Android it's not an error, it just return NULL buffer.
* But MLMediaCodecGetInputBufferPointer() will return an error instead. */
if (codec->surface_texture != NULL) {
return ret;
}
result =
MLMediaCodecGetOutputBufferPointer (codec->handle, index,
(const uint8_t **) &ret->data, &ret->size);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to get output buffer %d", result);
g_free (ret);
return NULL;
}
return ret;
}
GstAmcBuffer *
gst_amc_codec_get_input_buffer (GstAmcCodec * codec, gint index, GError ** err)
{
MLResult result;
GstAmcBuffer *ret;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (index >= 0, NULL);
ret = g_new0 (GstAmcBuffer, 1);
result =
MLMediaCodecGetInputBufferPointer (codec->handle, index, &ret->data,
&ret->size);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to get input buffer %d", result);
g_free (ret);
return NULL;
}
return ret;
}
gint
gst_amc_codec_dequeue_input_buffer (GstAmcCodec * codec, gint64 timeoutUs,
GError ** err)
{
MLResult result;
int64_t index;
g_return_val_if_fail (codec != NULL, G_MININT);
result = MLMediaCodecDequeueInputBuffer (codec->handle, timeoutUs, &index);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to dequeue input buffer %d", result);
return G_MININT;
}
if (index == MLMediaCodec_TryAgainLater)
return INFO_TRY_AGAIN_LATER;
return index;
}
gint
gst_amc_codec_dequeue_output_buffer (GstAmcCodec * codec,
GstAmcBufferInfo * info, gint64 timeoutUs, GError ** err)
{
MLMediaCodecBufferInfo info_;
MLResult result;
int64_t index;
g_return_val_if_fail (codec != NULL, G_MININT);
result =
MLMediaCodecDequeueOutputBuffer (codec->handle, &info_, timeoutUs,
&index);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to dequeue output buffer %d", result);
return G_MININT;
}
if (index == MLMediaCodec_OutputBuffersChanged) {
return gst_amc_codec_dequeue_output_buffer (codec, info, timeoutUs, err);
} else if (index == MLMediaCodec_FormatChanged) {
return INFO_OUTPUT_FORMAT_CHANGED;
} else if (index == MLMediaCodec_TryAgainLater) {
return INFO_TRY_AGAIN_LATER;
}
info->flags = info_.flags;
info->offset = info_.offset;
info->presentation_time_us = info_.presentation_time_us;
info->size = info_.size;
return index;
}
gboolean
gst_amc_codec_queue_input_buffer (GstAmcCodec * codec, gint index,
const GstAmcBufferInfo * info, GError ** err)
{
MLResult result;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (info != NULL, FALSE);
result = MLMediaCodecQueueInputBuffer (codec->handle, index, info->offset,
info->size, info->presentation_time_us, info->flags);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to queue input buffer %d", result);
return FALSE;
}
return TRUE;
}
gboolean
gst_amc_codec_release_output_buffer (GstAmcCodec * codec, gint index,
gboolean render, GError ** err)
{
MLResult result;
g_return_val_if_fail (codec != NULL, FALSE);
result = MLMediaCodecReleaseOutputBuffer (codec->handle, index, render);
if (result != MLResult_Ok) {
g_set_error (err, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_FAILED,
"Failed to release output buffer %d", result);
return FALSE;
}
return TRUE;
}
GstAmcSurfaceTexture *
gst_amc_codec_new_surface_texture (GError ** err)
{
return (GstAmcSurfaceTexture *) gst_amc_surface_texture_ml_new (err);
}