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Thu, 04 Feb 2021 11:10:55 -0800 (PST) Received: from localhost.localdomain ([181.23.64.183]) by smtp.gmail.com with ESMTPSA id t14sm5889291qkt.50.2021.02.04.11.10.53 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Feb 2021 11:10:54 -0800 (PST) From: James Almer To: ffmpeg-devel@ffmpeg.org Date: Thu, 4 Feb 2021 16:09:29 -0300 Message-Id: <20210204191005.48190-15-jamrial@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210204191005.48190-1-jamrial@gmail.com> References: <20210204191005.48190-1-jamrial@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 14/50] avformat/avidec: use av_packet_alloc() to allocate packets X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: James Almer --- libavformat/avidec.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 79000f3e81..0dd447aa7f 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -59,7 +59,7 @@ typedef struct AVIStream { * the MS dshow demuxer */ AVFormatContext *sub_ctx; - AVPacket sub_pkt; + AVPacket *sub_pkt; AVBufferRef *sub_buffer; int64_t seek_pos; @@ -1124,6 +1124,9 @@ static int read_gab2_sub(AVFormatContext *s, AVStream *st, AVPacket *pkt) if (strcmp(sub_demuxer->name, "srt") && strcmp(sub_demuxer->name, "ass")) goto error; + if (!(ast->sub_pkt = av_packet_alloc())) + goto error; + if (!(ast->sub_ctx = avformat_alloc_context())) goto error; @@ -1135,7 +1138,7 @@ static int read_gab2_sub(AVFormatContext *s, AVStream *st, AVPacket *pkt) if (!avformat_open_input(&ast->sub_ctx, "", sub_demuxer, NULL)) { if (ast->sub_ctx->nb_streams != 1) goto error; - ff_read_packet(ast->sub_ctx, &ast->sub_pkt); + ff_read_packet(ast->sub_ctx, ast->sub_pkt); avcodec_parameters_copy(st->codecpar, ast->sub_ctx->streams[0]->codecpar); time_base = ast->sub_ctx->streams[0]->time_base; avpriv_set_pts_info(st, 64, time_base.num, time_base.den); @@ -1146,6 +1149,7 @@ static int read_gab2_sub(AVFormatContext *s, AVStream *st, AVPacket *pkt) return 1; error: + av_packet_free(&ast->sub_pkt); av_freep(&ast->sub_ctx); avio_context_free(&pb); } @@ -1166,8 +1170,8 @@ static AVStream *get_subtitle_pkt(AVFormatContext *s, AVStream *next_st, for (i = 0; i < s->nb_streams; i++) { st = s->streams[i]; ast = st->priv_data; - if (st->discard < AVDISCARD_ALL && ast && ast->sub_pkt.data) { - ts = av_rescale_q(ast->sub_pkt.dts, st->time_base, AV_TIME_BASE_Q); + if (st->discard < AVDISCARD_ALL && ast && ast->sub_pkt && ast->sub_pkt->data) { + ts = av_rescale_q(ast->sub_pkt->dts, st->time_base, AV_TIME_BASE_Q); if (ts <= next_ts && ts < ts_min) { ts_min = ts; sub_st = st; @@ -1177,11 +1181,11 @@ static AVStream *get_subtitle_pkt(AVFormatContext *s, AVStream *next_st, if (sub_st) { ast = sub_st->priv_data; - *pkt = ast->sub_pkt; + av_packet_move_ref(pkt, ast->sub_pkt); pkt->stream_index = sub_st->index; - if (ff_read_packet(ast->sub_ctx, &ast->sub_pkt) < 0) - ast->sub_pkt.data = NULL; + if (ff_read_packet(ast->sub_ctx, ast->sub_pkt) < 0) + ast->sub_pkt->data = NULL; } return sub_st; } @@ -1800,10 +1804,10 @@ static void seek_subtitle(AVStream *st, AVStream *st2, int64_t timestamp) { AVIStream *ast2 = st2->priv_data; int64_t ts2 = av_rescale_q(timestamp, st->time_base, st2->time_base); - av_packet_unref(&ast2->sub_pkt); + av_packet_unref(ast2->sub_pkt); if (avformat_seek_file(ast2->sub_ctx, 0, INT64_MIN, ts2, ts2, 0) >= 0 || avformat_seek_file(ast2->sub_ctx, 0, ts2, ts2, INT64_MAX, 0) >= 0) - ff_read_packet(ast2->sub_ctx, &ast2->sub_pkt); + ff_read_packet(ast2->sub_ctx, ast2->sub_pkt); } static int avi_read_seek(AVFormatContext *s, int stream_index, @@ -1937,7 +1941,7 @@ static int avi_read_close(AVFormatContext *s) avformat_close_input(&ast->sub_ctx); } av_buffer_unref(&ast->sub_buffer); - av_packet_unref(&ast->sub_pkt); + av_packet_free(&ast->sub_pkt); } }