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FFmpeg/libavcodec/mediacodecdec.c

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/*
* Android MediaCodec MPEG-2 / H.264 / H.265 / MPEG-4 / VP8 / VP9 decoders
*
* Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
*
* This file is part of FFmpeg.
*
* FFmpeg 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config_components.h"
#include <stdint.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/pixfmt.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "h264_parse.h"
#include "h264_ps.h"
#include "hevc/parse.h"
#include "hwconfig.h"
#include "internal.h"
#include "jni.h"
#include "mediacodec_wrapper.h"
#include "mediacodecdec_common.h"
typedef struct MediaCodecH264DecContext {
AVClass *avclass;
MediaCodecDecContext *ctx;
AVPacket buffered_pkt;
int delay_flush;
int amlogic_mpeg2_api23_workaround;
int use_ndk_codec;
} MediaCodecH264DecContext;
static av_cold int mediacodec_decode_close(AVCodecContext *avctx)
{
MediaCodecH264DecContext *s = avctx->priv_data;
ff_mediacodec_dec_close(avctx, s->ctx);
s->ctx = NULL;
av_packet_unref(&s->buffered_pkt);
return 0;
}
#if CONFIG_H264_MEDIACODEC_DECODER || CONFIG_HEVC_MEDIACODEC_DECODER
static int h2645_ps_to_nalu(const uint8_t *src, int src_size, uint8_t **out, int *out_size)
{
int i;
int ret = 0;
uint8_t *p = NULL;
static const uint8_t nalu_header[] = { 0x00, 0x00, 0x00, 0x01 };
if (!out || !out_size) {
return AVERROR(EINVAL);
}
p = av_malloc(sizeof(nalu_header) + src_size);
if (!p) {
return AVERROR(ENOMEM);
}
*out = p;
*out_size = sizeof(nalu_header) + src_size;
memcpy(p, nalu_header, sizeof(nalu_header));
memcpy(p + sizeof(nalu_header), src, src_size);
/* Escape 0x00, 0x00, 0x0{0-3} pattern */
for (i = 4; i < *out_size; i++) {
if (i < *out_size - 3 &&
p[i + 0] == 0 &&
p[i + 1] == 0 &&
p[i + 2] <= 3) {
uint8_t *new;
*out_size += 1;
new = av_realloc(*out, *out_size);
if (!new) {
ret = AVERROR(ENOMEM);
goto done;
}
*out = p = new;
i = i + 2;
memmove(p + i + 1, p + i, *out_size - (i + 1));
p[i] = 0x03;
}
}
done:
if (ret < 0) {
av_freep(out);
*out_size = 0;
}
return ret;
}
#endif
#if CONFIG_H264_MEDIACODEC_DECODER
static int h264_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format)
{
int i;
int ret;
H264ParamSets ps;
const PPS *pps = NULL;
const SPS *sps = NULL;
int is_avc = 0;
int nal_length_size = 0;
memset(&ps, 0, sizeof(ps));
ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size,
&ps, &is_avc, &nal_length_size, 0, avctx);
if (ret < 0) {
goto done;
}
for (i = 0; i < MAX_PPS_COUNT; i++) {
if (ps.pps_list[i]) {
pps = ps.pps_list[i];
break;
}
}
if (pps) {
if (ps.sps_list[pps->sps_id]) {
sps = ps.sps_list[pps->sps_id];
}
}
if (pps && sps) {
uint8_t *data = NULL;
int data_size = 0;
avctx->profile = ff_h264_get_profile(sps);
avctx->level = sps->level_idc;
if ((ret = h2645_ps_to_nalu(sps->data, sps->data_size, &data, &data_size)) < 0) {
goto done;
}
ff_AMediaFormat_setBuffer(format, "csd-0", (void*)data, data_size);
av_freep(&data);
if ((ret = h2645_ps_to_nalu(pps->data, pps->data_size, &data, &data_size)) < 0) {
goto done;
}
ff_AMediaFormat_setBuffer(format, "csd-1", (void*)data, data_size);
av_freep(&data);
} else {
const int warn = is_avc && (avctx->codec_tag == MKTAG('a','v','c','1') ||
avctx->codec_tag == MKTAG('a','v','c','2'));
av_log(avctx, warn ? AV_LOG_WARNING : AV_LOG_DEBUG,
"Could not extract PPS/SPS from extradata\n");
ret = 0;
}
done:
ff_h264_ps_uninit(&ps);
return ret;
}
#endif
#if CONFIG_HEVC_MEDIACODEC_DECODER
static int hevc_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format)
{
int i;
int ret;
HEVCParamSets ps;
HEVCSEI sei;
const HEVCVPS *vps = NULL;
const HEVCPPS *pps = NULL;
const HEVCSPS *sps = NULL;
int is_nalff = 0;
int nal_length_size = 0;
uint8_t *vps_data = NULL;
uint8_t *sps_data = NULL;
uint8_t *pps_data = NULL;
int vps_data_size = 0;
int sps_data_size = 0;
int pps_data_size = 0;
memset(&ps, 0, sizeof(ps));
memset(&sei, 0, sizeof(sei));
ret = ff_hevc_decode_extradata(avctx->extradata, avctx->extradata_size,
&ps, &sei, &is_nalff, &nal_length_size, 0, 1, avctx);
if (ret < 0) {
goto done;
}
for (i = 0; i < HEVC_MAX_VPS_COUNT; i++) {
if (ps.vps_list[i]) {
vps = ps.vps_list[i];
break;
}
}
for (i = 0; i < HEVC_MAX_PPS_COUNT; i++) {
if (ps.pps_list[i]) {
pps = ps.pps_list[i];
break;
}
}
if (pps) {
if (ps.sps_list[pps->sps_id]) {
sps = ps.sps_list[pps->sps_id];
}
}
if (vps && pps && sps) {
uint8_t *data;
int data_size;
avctx->profile = sps->ptl.general_ptl.profile_idc;
avctx->level = sps->ptl.general_ptl.level_idc;
if ((ret = h2645_ps_to_nalu(vps->data, vps->data_size, &vps_data, &vps_data_size)) < 0 ||
(ret = h2645_ps_to_nalu(sps->data, sps->data_size, &sps_data, &sps_data_size)) < 0 ||
(ret = h2645_ps_to_nalu(pps->data, pps->data_size, &pps_data, &pps_data_size)) < 0) {
goto done;
}
data_size = vps_data_size + sps_data_size + pps_data_size;
data = av_mallocz(data_size);
if (!data) {
ret = AVERROR(ENOMEM);
goto done;
}
memcpy(data , vps_data, vps_data_size);
memcpy(data + vps_data_size , sps_data, sps_data_size);
memcpy(data + vps_data_size + sps_data_size, pps_data, pps_data_size);
ff_AMediaFormat_setBuffer(format, "csd-0", data, data_size);
av_freep(&data);
} else {
const int warn = is_nalff && avctx->codec_tag == MKTAG('h','v','c','1');
av_log(avctx, warn ? AV_LOG_WARNING : AV_LOG_DEBUG,
"Could not extract VPS/PPS/SPS from extradata\n");
ret = 0;
}
done:
ff_hevc_ps_uninit(&ps);
av_freep(&vps_data);
av_freep(&sps_data);
av_freep(&pps_data);
return ret;
}
#endif
#if CONFIG_MPEG2_MEDIACODEC_DECODER || \
CONFIG_MPEG4_MEDIACODEC_DECODER || \
CONFIG_VP8_MEDIACODEC_DECODER || \
CONFIG_VP9_MEDIACODEC_DECODER || \
CONFIG_AV1_MEDIACODEC_DECODER || \
CONFIG_AAC_MEDIACODEC_DECODER || \
CONFIG_AMRNB_MEDIACODEC_DECODER || \
CONFIG_AMRWB_MEDIACODEC_DECODER || \
CONFIG_MP3_MEDIACODEC_DECODER
static int common_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format)
{
int ret = 0;
if (avctx->extradata) {
ff_AMediaFormat_setBuffer(format, "csd-0", avctx->extradata, avctx->extradata_size);
}
return ret;
}
#endif
static av_cold int mediacodec_decode_init(AVCodecContext *avctx)
{
int ret;
int sdk_int;
const char *codec_mime = NULL;
FFAMediaFormat *format = NULL;
MediaCodecH264DecContext *s = avctx->priv_data;
if (s->use_ndk_codec < 0)
s->use_ndk_codec = !av_jni_get_java_vm(avctx);
format = ff_AMediaFormat_new(s->use_ndk_codec);
if (!format) {
av_log(avctx, AV_LOG_ERROR, "Failed to create media format\n");
ret = AVERROR_EXTERNAL;
goto done;
}
switch (avctx->codec_id) {
#if CONFIG_AV1_MEDIACODEC_DECODER
case AV_CODEC_ID_AV1:
codec_mime = "video/av01";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_H264_MEDIACODEC_DECODER
case AV_CODEC_ID_H264:
codec_mime = "video/avc";
ret = h264_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_HEVC_MEDIACODEC_DECODER
case AV_CODEC_ID_HEVC:
codec_mime = "video/hevc";
ret = hevc_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_MPEG2_MEDIACODEC_DECODER
case AV_CODEC_ID_MPEG2VIDEO:
codec_mime = "video/mpeg2";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_MPEG4_MEDIACODEC_DECODER
case AV_CODEC_ID_MPEG4:
codec_mime = "video/mp4v-es",
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_VP8_MEDIACODEC_DECODER
case AV_CODEC_ID_VP8:
codec_mime = "video/x-vnd.on2.vp8";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_VP9_MEDIACODEC_DECODER
case AV_CODEC_ID_VP9:
codec_mime = "video/x-vnd.on2.vp9";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_AAC_MEDIACODEC_DECODER
case AV_CODEC_ID_AAC:
codec_mime = "audio/mp4a-latm";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_AMRNB_MEDIACODEC_DECODER
case AV_CODEC_ID_AMR_NB:
codec_mime = "audio/3gpp";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_AMRWB_MEDIACODEC_DECODER
case AV_CODEC_ID_AMR_WB:
codec_mime = "audio/amr-wb";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
#if CONFIG_MP3_MEDIACODEC_DECODER
case AV_CODEC_ID_MP3:
codec_mime = "audio/mpeg";
ret = common_set_extradata(avctx, format);
if (ret < 0)
goto done;
break;
#endif
default:
av_assert0(0);
}
ff_AMediaFormat_setString(format, "mime", codec_mime);
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
ff_AMediaFormat_setInt32(format, "width", avctx->width);
ff_AMediaFormat_setInt32(format, "height", avctx->height);
} else {
ff_AMediaFormat_setInt32(format, "channel-count", avctx->ch_layout.nb_channels);
ff_AMediaFormat_setInt32(format, "sample-rate", avctx->sample_rate);
}
s->ctx = av_mallocz(sizeof(*s->ctx));
if (!s->ctx) {
av_log(avctx, AV_LOG_ERROR, "Failed to allocate MediaCodecDecContext\n");
ret = AVERROR(ENOMEM);
goto done;
}
s->ctx->delay_flush = s->delay_flush;
s->ctx->use_ndk_codec = s->use_ndk_codec;
if ((ret = ff_mediacodec_dec_init(avctx, s->ctx, codec_mime, format)) < 0) {
s->ctx = NULL;
goto done;
}
av_log(avctx, AV_LOG_INFO,
"MediaCodec started successfully: codec = %s, ret = %d\n",
s->ctx->codec_name, ret);
sdk_int = ff_Build_SDK_INT(avctx);
/* ff_Build_SDK_INT can fail when target API < 24 and JVM isn't available.
* If we don't check sdk_int > 0, the workaround might be enabled by
* mistake.
* JVM is required to make the workaround works reliably. On the other hand,
* missing a workaround should not be a serious issue, we do as best we can.
*/
if (sdk_int > 0 && sdk_int <= 23 &&
strcmp(s->ctx->codec_name, "OMX.amlogic.mpeg2.decoder.awesome") == 0) {
av_log(avctx, AV_LOG_INFO, "Enabling workaround for %s on API=%d\n",
s->ctx->codec_name, sdk_int);
s->amlogic_mpeg2_api23_workaround = 1;
}
done:
if (format) {
ff_AMediaFormat_delete(format);
}
if (ret < 0) {
mediacodec_decode_close(avctx);
}
return ret;
}
static int mediacodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
{
MediaCodecH264DecContext *s = avctx->priv_data;
int ret;
ssize_t index;
/* In delay_flush mode, wait until the user has released or rendered
all retained frames. */
if (s->delay_flush && ff_mediacodec_dec_is_flushing(avctx, s->ctx)) {
if (!ff_mediacodec_dec_flush(avctx, s->ctx)) {
return AVERROR(EAGAIN);
}
}
/* poll for new frame */
ret = ff_mediacodec_dec_receive(avctx, s->ctx, frame, false);
if (ret != AVERROR(EAGAIN))
return ret;
/* feed decoder */
while (1) {
if (s->ctx->current_input_buffer < 0 && !s->ctx->draining) {
/* poll for input space */
index = ff_AMediaCodec_dequeueInputBuffer(s->ctx->codec, 0);
if (index < 0) {
/* no space, block for an output frame to appear */
ret = ff_mediacodec_dec_receive(avctx, s->ctx, frame, true);
/* Try again if both input port and output port return EAGAIN.
* If no data is consumed and no frame in output, it can make
* both avcodec_send_packet() and avcodec_receive_frame()
* return EAGAIN, which violate the design.
*/
if (ff_AMediaCodec_infoTryAgainLater(s->ctx->codec, index) &&
ret == AVERROR(EAGAIN))
continue;
return ret;
}
s->ctx->current_input_buffer = index;
}
/* try to flush any buffered packet data */
if (s->buffered_pkt.size > 0) {
ret = ff_mediacodec_dec_send(avctx, s->ctx, &s->buffered_pkt, false);
if (ret >= 0) {
s->buffered_pkt.size -= ret;
s->buffered_pkt.data += ret;
if (s->buffered_pkt.size <= 0) {
av_packet_unref(&s->buffered_pkt);
} else {
av_log(avctx, AV_LOG_WARNING,
"could not send entire packet in single input buffer (%d < %d)\n",
ret, s->buffered_pkt.size+ret);
}
} else if (ret < 0 && ret != AVERROR(EAGAIN)) {
return ret;
}
if (s->amlogic_mpeg2_api23_workaround && s->buffered_pkt.size <= 0) {
/* fallthrough to fetch next packet regardless of input buffer space */
} else {
/* poll for space again */
continue;
}
}
/* fetch new packet or eof */
ret = ff_decode_get_packet(avctx, &s->buffered_pkt);
if (ret == AVERROR_EOF) {
AVPacket null_pkt = { 0 };
ret = ff_mediacodec_dec_send(avctx, s->ctx, &null_pkt, true);
if (ret < 0)
return ret;
return ff_mediacodec_dec_receive(avctx, s->ctx, frame, true);
} else if (ret == AVERROR(EAGAIN) && s->ctx->current_input_buffer < 0) {
return ff_mediacodec_dec_receive(avctx, s->ctx, frame, true);
} else if (ret < 0) {
return ret;
}
}
return AVERROR(EAGAIN);
}
static void mediacodec_decode_flush(AVCodecContext *avctx)
{
MediaCodecH264DecContext *s = avctx->priv_data;
av_packet_unref(&s->buffered_pkt);
ff_mediacodec_dec_flush(avctx, s->ctx);
}
static const AVCodecHWConfigInternal *const mediacodec_hw_configs[] = {
&(const AVCodecHWConfigInternal) {
.public = {
.pix_fmt = AV_PIX_FMT_MEDIACODEC,
.methods = AV_CODEC_HW_CONFIG_METHOD_AD_HOC |
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX,
.device_type = AV_HWDEVICE_TYPE_MEDIACODEC,
},
.hwaccel = NULL,
},
NULL
};
#define OFFSET(x) offsetof(MediaCodecH264DecContext, x)
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption ff_mediacodec_vdec_options[] = {
{ "delay_flush", "Delay flush until hw output buffers are returned to the decoder",
OFFSET(delay_flush), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VD },
{ "ndk_codec", "Use MediaCodec from NDK",
OFFSET(use_ndk_codec), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VD },
{ NULL }
};
#define DECLARE_MEDIACODEC_VCLASS(short_name) \
static const AVClass ff_##short_name##_mediacodec_dec_class = { \
.class_name = #short_name "_mediacodec", \
.item_name = av_default_item_name, \
.option = ff_mediacodec_vdec_options, \
.version = LIBAVUTIL_VERSION_INT, \
};
#define DECLARE_MEDIACODEC_VDEC(short_name, full_name, codec_id, bsf) \
DECLARE_MEDIACODEC_VCLASS(short_name) \
const FFCodec ff_ ## short_name ## _mediacodec_decoder = { \
.p.name = #short_name "_mediacodec", \
CODEC_LONG_NAME(full_name " Android MediaCodec decoder"), \
.p.type = AVMEDIA_TYPE_VIDEO, \
.p.id = codec_id, \
.p.priv_class = &ff_##short_name##_mediacodec_dec_class, \
.priv_data_size = sizeof(MediaCodecH264DecContext), \
.init = mediacodec_decode_init, \
FF_CODEC_RECEIVE_FRAME_CB(mediacodec_receive_frame), \
.flush = mediacodec_decode_flush, \
.close = mediacodec_decode_close, \
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HARDWARE, \
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE, \
.bsfs = bsf, \
.hw_configs = mediacodec_hw_configs, \
.p.wrapper_name = "mediacodec", \
}; \
#if CONFIG_H264_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(h264, "H.264", AV_CODEC_ID_H264, "h264_mp4toannexb")
#endif
#if CONFIG_HEVC_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(hevc, "H.265", AV_CODEC_ID_HEVC, "hevc_mp4toannexb")
#endif
#if CONFIG_MPEG2_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(mpeg2, "MPEG-2", AV_CODEC_ID_MPEG2VIDEO, NULL)
#endif
#if CONFIG_MPEG4_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(mpeg4, "MPEG-4", AV_CODEC_ID_MPEG4, NULL)
#endif
#if CONFIG_VP8_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(vp8, "VP8", AV_CODEC_ID_VP8, NULL)
#endif
#if CONFIG_VP9_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(vp9, "VP9", AV_CODEC_ID_VP9, NULL)
#endif
#if CONFIG_AV1_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_VDEC(av1, "AV1", AV_CODEC_ID_AV1, NULL)
#endif
#define AD AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption ff_mediacodec_adec_options[] = {
{ "ndk_codec", "Use MediaCodec from NDK",
OFFSET(use_ndk_codec), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AD },
{ NULL }
};
#define DECLARE_MEDIACODEC_ACLASS(short_name) \
static const AVClass ff_##short_name##_mediacodec_dec_class = { \
.class_name = #short_name "_mediacodec", \
.item_name = av_default_item_name, \
.option = ff_mediacodec_adec_options, \
.version = LIBAVUTIL_VERSION_INT, \
};
#define DECLARE_MEDIACODEC_ADEC(short_name, full_name, codec_id, bsf) \
DECLARE_MEDIACODEC_VCLASS(short_name) \
const FFCodec ff_ ## short_name ## _mediacodec_decoder = { \
.p.name = #short_name "_mediacodec", \
CODEC_LONG_NAME(full_name " Android MediaCodec decoder"), \
.p.type = AVMEDIA_TYPE_AUDIO, \
.p.id = codec_id, \
.p.priv_class = &ff_##short_name##_mediacodec_dec_class, \
.priv_data_size = sizeof(MediaCodecH264DecContext), \
.init = mediacodec_decode_init, \
FF_CODEC_RECEIVE_FRAME_CB(mediacodec_receive_frame), \
.flush = mediacodec_decode_flush, \
.close = mediacodec_decode_close, \
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE, \
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE, \
.bsfs = bsf, \
.p.wrapper_name = "mediacodec", \
}; \
#if CONFIG_AAC_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_ADEC(aac, "AAC", AV_CODEC_ID_AAC, "aac_adtstoasc")
#endif
#if CONFIG_AMRNB_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_ADEC(amrnb, "AMR-NB", AV_CODEC_ID_AMR_NB, NULL)
#endif
#if CONFIG_AMRWB_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_ADEC(amrwb, "AMR-WB", AV_CODEC_ID_AMR_WB, NULL)
#endif
#if CONFIG_MP3_MEDIACODEC_DECODER
DECLARE_MEDIACODEC_ADEC(mp3, "MP3", AV_CODEC_ID_MP3, NULL)
#endif